{"id":9139,"date":"2025-07-22T08:12:09","date_gmt":"2025-07-22T01:12:09","guid":{"rendered":"https:\/\/dufago.com.vn\/?p=9139"},"modified":"2026-06-08T16:46:01","modified_gmt":"2026-06-08T09:46:01","slug":"tim-hieu-be-tong-mac-300-khai-niem-cap-phoi-chuan-ung-dung-da-dang-va-bao-gia-moi-nhat-2025","status":"publish","type":"post","link":"https:\/\/dufago.com.vn\/en\/tim-hieu-be-tong-mac-300-khai-niem-cap-phoi-chuan-ung-dung-da-dang-va-bao-gia-moi-nhat-2025\/","title":{"rendered":"B\u00ea t\u00f4ng m\u00e1c 300 l\u00e0 g\u00ec? C\u01b0\u1eddng \u0111\u1ed9, c\u1ea5p ph\u1ed1i v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf"},"content":{"rendered":"<p class=\"isSelectedEnd\"><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">B\u00ea t\u00f4ng m\u00e1c 300, th\u01b0\u1eddng vi\u1ebft l\u00e0 M300, l\u00e0 nh\u00f3m b\u00ea t\u00f4ng c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n cao h\u01a1n M250 v\u00e0 \u0111\u01b0\u1ee3c d\u00f9ng trong nhi\u1ec1u h\u1ea1ng m\u1ee5c ch\u1ecbu l\u1ef1c nh\u01b0 m\u00f3ng, d\u1ea7m, s\u00e0n, c\u1ed9t, nh\u00e0 ph\u1ed1 nhi\u1ec1u t\u1ea7ng, nh\u00e0 x\u01b0\u1edfng ho\u1eb7c c\u1ea5u ki\u1ec7n c\u1ea7n \u0111\u1ed9 b\u1ec1n cao h\u01a1n.<\/span><\/strong><\/p>\n<p class=\"isSelectedEnd\"><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">Tuy nhi\u00ean, kh\u00f4ng n\u00ean hi\u1ec3u r\u1eb1ng c\u00f4ng tr\u00ecnh n\u00e0o d\u00f9ng M300 c\u0169ng t\u1ed1t h\u01a1n. Vi\u1ec7c ch\u1ecdn m\u00e1c b\u00ea t\u00f4ng ph\u1ea3i d\u1ef1a tr\u00ean h\u1ed3 s\u01a1 thi\u1ebft k\u1ebf, t\u1ea3i tr\u1ecdng, n\u1ec1n \u0111\u1ea5t, nh\u1ecbp k\u1ebft c\u1ea5u, \u0111i\u1ec1u ki\u1ec7n thi c\u00f4ng, \u0111\u1ed9 s\u1ee5t v\u00e0 y\u00eau c\u1ea7u b\u1ea3o d\u01b0\u1ee1ng.<\/span><\/strong><\/p>\n<p><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">B\u00e0i vi\u1ebft n\u00e0y gi\u00fap b\u1ea1n hi\u1ec3u b\u00ea t\u00f4ng m\u00e1c 300 l\u00e0 g\u00ec, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ea5p \u0111\u1ed9 b\u1ec1n n\u00e0o, d\u00f9ng cho h\u1ea1ng m\u1ee5c n\u00e0o, c\u1ea5p ph\u1ed1i tham kh\u1ea3o ra sao v\u00e0 khi n\u00e0o n\u00ean ch\u1ecdn M300 thay v\u00ec M250.<\/span><\/strong><\/p>\n<h2><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">B\u00ea t\u00f4ng m\u00e1c 300 l\u00e0 g\u00ec? \u0110\u1ecbnh ngh\u0129a v\u00e0 ch\u1ec9 s\u1ed1 k\u1ef9 thu\u1eadt<\/span><\/strong><\/h2>\n<h3><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">Kh\u00e1i ni\u1ec7m b\u00ea t\u00f4ng m\u00e1c 300<\/span><\/strong><\/h3>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">B\u00ea t\u00f4ng m\u00e1c 300 l\u00e0 lo\u1ea1i b\u00ea t\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ef1c n\u00e9n t\u1ed1i thi\u1ec3u l\u00e0 300 kg\/cm\u00b2 (kilogam tr\u00ean centimet vu\u00f4ng) ho\u1eb7c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 28.90 MPa (Megapascal). <\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Con s\u1ed1 300 n\u00e0y l\u00e0 c\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n nh\u1ecf nh\u1ea5t m\u00e0 95% c\u00e1c m\u1eabu b\u00ea t\u00f4ng ki\u1ec3m tra ph\u1ea3i \u0111\u1ea1t \u0111\u01b0\u1ee3c sau 28 ng\u00e0y b\u1ea3o d\u01b0\u1ee1ng trong \u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n. Trong h\u1ec7 \u0111\u01a1n v\u1ecb qu\u1ed1c t\u1ebf, c\u01b0\u1eddng \u0111\u1ed9 n\u00e0y t\u01b0\u01a1ng \u0111\u01b0\u01a1ng kho\u1ea3ng <span class=\"math-inline\" data-math=\"28.90 \\text{ MPa}\">28.90 MPa<\/span>\u00a0(Megapascal).<\/span><\/p>\n<h3><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">M\u00e1c 300 v\u00e0 c\u1ea5p \u0111\u1ed9 b\u1ec1n t\u01b0\u01a1ng \u1ee9ng (B22.5)<\/span><\/strong><\/h3>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Theo Ti\u00eau chu\u1ea9n Vi\u1ec7t Nam hi\u1ec7n h\u00e0nh (<span class=\"math-inline\" data-math=\"\\text{TCVN } 5574:2018\">TCVN 5574:2018<\/span>), b\u00ea t\u00f4ng M\u00e1c 300 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u1ea5p \u0111\u1ed9 b\u1ec1n B22.5.<\/span><\/p>\n<table class=\"dufago-table\">\n<tbody>\n<tr>\n<th>Thu\u1eadt ng\u1eef<\/th>\n<th>K\u00fd hi\u1ec7u<\/th>\n<th>Gi\u00e1 tr\u1ecb<\/th>\n<th>\u0110\u01a1n v\u1ecb<\/th>\n<\/tr>\n<tr>\n<td>M\u00e1c b\u00ea t\u00f4ng (Ti\u00eau chu\u1ea9n c\u0169)<\/td>\n<td>M300<\/td>\n<td>C\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n t\u1ed1i thi\u1ec3u l\u00e0 300<\/td>\n<td>kg\/cm2<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea5p \u0111\u1ed9 b\u1ec1n (Ti\u00eau chu\u1ea9n m\u1edbi)<\/td>\n<td>B22.5<\/td>\n<td>C\u01b0\u1eddng \u0111\u1ed9 \u0111\u1eb7c tr\u01b0ng ch\u1ecbu n\u00e9n l\u00e0 22.5<\/td>\n<td>MPa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"horizontal-scroll-wrapper\">\n<div class=\"table-block-component\">\n<div class=\"table-block has-export-button\">\n<div class=\"table-content not-end-of-paragraph\" data-hveid=\"0\" data-ved=\"0CAAQ3ecQahgKEwi8nPj30eaQAxUAAAAAHQAAAAAQyQM\">\n<figure id=\"attachment_9143\" aria-describedby=\"caption-attachment-9143\" style=\"width: 1024px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-9143 size-large\" style=\"font-weight: 600; text-align: center;\" src=\"https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-3-1024x768.jpg\" alt=\"\" width=\"1024\" height=\"768\" srcset=\"https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-3-1024x768.jpg 1024w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-3-300x225.jpg 300w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-3-768x576.jpg 768w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-3-16x12.jpg 16w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-3-750x563.jpg 750w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-3-1140x855.jpg 1140w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-3.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-9143\" class=\"wp-caption-text\">B\u00ea t\u00f4ng m\u00e1c 300 l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">B\u00ea t\u00f4ng m\u00e1c 300 d\u00f9ng cho h\u1ea1ng m\u1ee5c n\u00e0o?<\/span><\/strong><\/h2>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">M300 th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00e2n nh\u1eafc cho c\u00e1c h\u1ea1ng m\u1ee5c c\u00f3 y\u00eau c\u1ea7u ch\u1ecbu l\u1ef1c cao h\u01a1n m\u1ee9c d\u00e2n d\u1ee5ng th\u00f4ng th\u01b0\u1eddng. Tuy v\u1eady, m\u1ed7i c\u00f4ng tr\u00ecnh v\u1eabn c\u1ea7n tu\u00e2n theo h\u1ed3 s\u01a1 thi\u1ebft k\u1ebf v\u00e0 t\u01b0 v\u1ea5n k\u1ef9 thu\u1eadt.<\/span><\/p>\n<table class=\"dufago-table\">\n<tbody>\n<tr>\n<th>H\u1ea1ng m\u1ee5c<\/th>\n<th>C\u00f3 n\u00ean d\u00f9ng M300 kh\u00f4ng?<\/th>\n<th>Ghi ch\u00fa<\/th>\n<\/tr>\n<tr>\n<td>M\u00f3ng nh\u00e0 d\u00e2n d\u1ee5ng<\/td>\n<td>C\u00f3 th\u1ec3<\/td>\n<td>Ph\u00f9 h\u1ee3p khi thi\u1ebft k\u1ebf y\u00eau c\u1ea7u ho\u1eb7c t\u1ea3i tr\u1ecdng\/n\u1ec1n \u0111\u1ea5t c\u1ea7n cao h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>D\u1ea7m, s\u00e0n, c\u1ed9t<\/td>\n<td>C\u00f3<\/td>\n<td>\u0110\u1eb7c bi\u1ec7t v\u1edbi c\u00f4ng tr\u00ecnh c\u00f3 t\u1ea3i tr\u1ecdng l\u1edbn h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>Nh\u00e0 ph\u1ed1 nhi\u1ec1u t\u1ea7ng<\/td>\n<td>C\u00f3 th\u1ec3<\/td>\n<td>C\u1ea7n theo h\u1ed3 s\u01a1 k\u1ebft c\u1ea5u<\/td>\n<\/tr>\n<tr>\n<td>Nh\u00e0 x\u01b0\u1edfng, n\u1ec1n ch\u1ecbu t\u1ea3i<\/td>\n<td>C\u00f3 th\u1ec3<\/td>\n<td>Ph\u1ee5 thu\u1ed9c t\u1ea3i tr\u1ecdng s\u1eed d\u1ee5ng<\/td>\n<\/tr>\n<tr>\n<td>C\u1ecdc, c\u1ea5u ki\u1ec7n \u0111\u00fac s\u1eb5n<\/td>\n<td>C\u00f3 th\u1ec3<\/td>\n<td>T\u00f9y thi\u1ebft k\u1ebf v\u00e0 y\u00eau c\u1ea7u s\u1ea3n xu\u1ea5t<\/td>\n<\/tr>\n<tr>\n<td>H\u1ea1ng m\u1ee5c ph\u1ee5, t\u1ea3i nh\u1eb9<\/td>\n<td>Kh\u00f4ng c\u1ea7n m\u1eb7c \u0111\u1ecbnh<\/td>\n<td>C\u00f3 th\u1ec3 g\u00e2y l\u00e3ng ph\u00ed n\u1ebfu kh\u00f4ng c\u1ea7n m\u00e1c cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">V\u1edbi c\u00f4ng tr\u00ecnh nh\u00e0 d\u00e2n d\u1ee5ng th\u00f4ng th\u01b0\u1eddng, M300 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00f9ng cho m\u00f3ng, d\u1ea7m, s\u00e0n, c\u1ed9t khi thi\u1ebft k\u1ebf y\u00eau c\u1ea7u. V\u1edbi c\u00f4ng tr\u00ecnh nh\u1ecf, \u00edt t\u1ea7ng, t\u1ea3i tr\u1ecdng th\u1ea5p, M250 c\u00f3 th\u1ec3 \u0111\u00e3 \u0111\u1ee7 n\u1ebfu h\u1ed3 s\u01a1 k\u1ef9 thu\u1eadt cho ph\u00e9p.<\/span><\/p>\n<h3><span style=\"color: #333399;\"><strong><span style=\"font-family: arial, helvetica, sans-serif;\">C\u01b0\u1eddng \u0111\u1ed9 b\u00ea t\u00f4ng m\u00e1c 300 ph\u00e1t tri\u1ec3n theo th\u1eddi gian (R7\/R28)<\/span><\/strong><\/span><\/h3>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a b\u00ea t\u00f4ng M\u00e1c 300 l\u00e0 qu\u00e1 tr\u00ecnh th\u1ee7y h\u00f3a li\u00ean t\u1ee5c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c m\u1ed1c c\u01b0\u1eddng \u0111\u1ed9 quan tr\u1ecdng:<\/span><\/p>\n<p><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Th\u1eddi gian \u0111\u00f4ng k\u1ebft ban \u0111\u1ea7u:\u00a0<\/span><\/strong><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">&#8211; \u0110\u00f4ng k\u1ebft s\u01a1 b\u1ed9: Kho\u1ea3ng <span class=\"math-inline\" data-math=\"1-3\">1-3<\/span>\u00a0gi\u1edd sau khi \u0111\u1ed5.<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">&#8211; \u0110\u00f4ng k\u1ebft cu\u1ed1i c\u00f9ng: Kho\u1ea3ng <span class=\"math-inline\" data-math=\"3-6\">3-6<\/span>\u00a0gi\u1edd sau khi \u0111\u1ed5. B\u1ec1 m\u1eb7t \u0111\u1ee7 c\u1ee9ng \u0111\u1ec3 ch\u1ecbu t\u1ea3i tr\u1ecdng nh\u1eb9.<\/span><\/li>\n<\/ul>\n<p><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">C\u01b0\u1eddng \u0111\u1ed9 b\u00ea t\u00f4ng M\u00e1c 300 sau 7 ng\u00e0y \u0111\u1ea1t bao nhi\u00eau?<\/span><\/strong><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">C\u01b0\u1eddng \u0111\u1ed9 b\u00ea t\u00f4ng sau 7 ng\u00e0y (R7)\u00a0l\u00e0 m\u1ed1c then ch\u1ed1t \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh th\u00e1o c\u1ed1p-pha.<\/span><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">&#8211; Theo quy lu\u1eadt ph\u00e1t tri\u1ec3n c\u01b0\u1eddng \u0111\u1ed9 chu\u1ea9n, b\u00ea t\u00f4ng M300 sau 7 ng\u00e0y b\u1ea3o d\u01b0\u1ee1ng s\u1ebd \u0111\u1ea1t kho\u1ea3ng <span class=\"math-inline\" data-math=\"65\\% - 75\\%\">65% &#8211; 75%<\/span>\u00a0c\u01b0\u1eddng \u0111\u1ed9 thi\u1ebft k\u1ebf.<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">&#8211; T\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 195 kg\/cm2 \u0111\u1ebfn 225 kg\/cm2.<\/span><\/li>\n<\/ul>\n<table class=\"dufago-table\">\n<tbody>\n<tr>\n<th>Ng\u00e0y tu\u1ed5i<\/th>\n<th>T\u1ef7 l\u1ec7 ph\u00e1t tri\u1ec3n c\u01b0\u1eddng \u0111\u1ed9<\/th>\n<th>C\u01b0\u1eddng \u0111\u1ed9 \u0111\u1ea1t \u0111\u01b0\u1ee3c<\/th>\n<th><\/th>\n<\/tr>\n<tr>\n<td>7 ng\u00e0y (R7)<\/td>\n<td>65% \u2013 75%<\/td>\n<td>195 \u2013 225 kg\/cm2<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>28 ng\u00e0y (R28)<\/td>\n<td>95% \u2013 100%<\/td>\n<td>300 kg\/cm2<\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">\u0110\u1ed9 s\u1ee5t b\u00ea t\u00f4ng m\u00e1c 300 n\u00ean ch\u1ecdn bao nhi\u00eau?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\u0110\u1ed9 s\u1ee5t c\u1ee7a b\u00ea t\u00f4ng M300 ph\u1ee5 thu\u1ed9c v\u00e0o h\u1ea1ng m\u1ee5c thi c\u00f4ng, ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ed5, m\u1eadt \u0111\u1ed9 c\u1ed1t th\u00e9p v\u00e0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt. Kh\u00f4ng c\u00f3 m\u1ed9t \u0111\u1ed9 s\u1ee5t c\u1ed1 \u0111\u1ecbnh cho m\u1ecdi c\u00f4ng tr\u00ecnh.<\/span><\/p>\n<table class=\"dufago-table\">\n<tbody>\n<tr>\n<th>Ph\u01b0\u01a1ng ph\u00e1p \/ h\u1ea1ng m\u1ee5c<\/th>\n<th>\u0110\u1ed9 s\u1ee5t tham kh\u1ea3o<\/th>\n<\/tr>\n<tr>\n<td>\u0110\u1ed5 x\u1ea3 tr\u1ef1c ti\u1ebfp<\/td>\n<td>8\u00b12 cm ho\u1eb7c 10\u00b12 cm<\/td>\n<\/tr>\n<tr>\n<td>M\u00f3ng, d\u1ea7m, s\u00e0n nh\u00e0 d\u00e2n d\u1ee5ng<\/td>\n<td>10\u201312 cm<\/td>\n<\/tr>\n<tr>\n<td>B\u00ea t\u00f4ng b\u01a1m<\/td>\n<td>12\u00b12 cm ho\u1eb7c 14\u00b12 cm<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea5u ki\u1ec7n nhi\u1ec1u th\u00e9p<\/td>\n<td>14\u00b12 cm ho\u1eb7c theo t\u01b0 v\u1ea5n k\u1ef9 thu\u1eadt<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"isSelectedEnd\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">N\u1ebfu \u0111\u1ed9 s\u1ee5t qu\u00e1 th\u1ea5p, b\u00ea t\u00f4ng c\u00f3 th\u1ec3 kh\u00f3 thi c\u00f4ng, kh\u00f3 l\u1ea5p \u0111\u1ea7y quanh c\u1ed1t th\u00e9p. N\u1ebfu \u0111\u1ed9 s\u1ee5t qu\u00e1 cao do t\u1ef1 \u00fd th\u00eam n\u01b0\u1edbc, b\u00ea t\u00f4ng c\u00f3 th\u1ec3 b\u1ecb ph\u00e2n t\u1ea7ng, t\u00e1ch n\u01b0\u1edbc v\u00e0 gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">B\u1ea1n c\u00f3 th\u1ec3 xem th\u00eam b\u00e0i <a href=\"https:\/\/dufago.com.vn\/en\/do-sut-be-tong-bao-nhieu-la-dat-bang-tra-va-quy-trinh-huong-dan-lay-sut\/\"><strong>\u0111\u1ed9 s\u1ee5t b\u00ea t\u00f4ng<\/strong><\/a> \u0111\u1ec3 hi\u1ec3u c\u00e1ch ch\u1ecdn \u0111\u1ed9 s\u1ee5t theo t\u1eebng h\u1ea1ng m\u1ee5c v\u00e0 c\u00e1ch ki\u1ec3m tra t\u1ea1i c\u00f4ng tr\u01b0\u1eddng.<\/span><\/p>\n<h2><span style=\"color: #333399;\"><strong><span style=\"font-family: arial, helvetica, sans-serif;\">C\u00e1c v\u1eadt li\u1ec7u c\u1ea5u th\u00e0nh m\u00e1c b\u00ea t\u00f4ng 300<\/span><\/strong><\/span><\/h2>\n<figure id=\"attachment_9142\" aria-describedby=\"caption-attachment-9142\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-large wp-image-9142\" src=\"https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-2-1024x768.jpg\" alt=\"\" width=\"1024\" height=\"768\" srcset=\"https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-2-1024x768.jpg 1024w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-2-300x225.jpg 300w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-2-768x576.jpg 768w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-2-16x12.jpg 16w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-2-750x563.jpg 750w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-2-1140x855.jpg 1140w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-2.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-9142\" class=\"wp-caption-text\">C\u00e1c v\u1eadt li\u1ec7u c\u1ea5u th\u00e0nh m\u00e1c b\u00ea t\u00f4ng 300<\/figcaption><\/figure>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong>&#8211; Xi m\u0103ng:<\/strong> C\u00e1c lo\u1ea1i xi m\u0103ng th\u01b0\u1eddng d\u00f9ng l\u00e0 xi m\u0103ng PCB30 ho\u1eb7c PCB40<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong>&#8211; C\u00e1t:<\/strong> C\u1ea7n l\u00e0 lo\u1ea1i c\u00e1t s\u1ea1ch, kh\u00f4ng l\u1eabn t\u1ea1p ch\u1ea5t h\u1eefu c\u01a1, b\u00f9n s\u00e9t, mu\u1ed1i clorua. C\u00e1t m\u1ecbn ho\u1eb7c c\u00e1t v\u00e0ng \u0111\u1ec1u c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng t\u00f9y thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee5 th\u1ec3.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong>&#8211; \u0110\u00e1 d\u0103m:<\/strong> L\u00e0 c\u1ed1t li\u1ec7u th\u00f4, th\u01b0\u1eddng s\u1eed d\u1ee5ng lo\u1ea1i \u0111\u00e1 1&#215;2 ho\u1eb7c 2x4cm, ph\u1ea3i \u0111\u1ea3m b\u1ea3o s\u1ea1ch, c\u01b0\u1eddng \u0111\u1ed9 t\u1ed1t, kh\u00f4ng l\u1eabn t\u1ea1p ch\u1ea5t.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong>&#8211; N\u01b0\u1edbc:<\/strong> N\u01b0\u1edbc d\u00f9ng \u0111\u1ec3 tr\u1ed9n b\u00ea t\u00f4ng ph\u1ea3i l\u00e0 n\u01b0\u1edbc s\u1ea1ch, kh\u00f4ng ch\u1ee9a d\u1ea7u m\u1ee1, axit, ki\u1ec1m, \u0111\u01b0\u1eddng, ho\u1eb7c c\u00e1c ch\u1ea5t h\u1eefu c\u01a1 kh\u00e1c c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh \u0111\u00f4ng k\u1ebft v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 b\u00ea t\u00f4ng.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong>&#8211; Ph\u1ee5 gia (n\u1ebfu c\u00f3):<\/strong> C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ph\u1ee5 gia ho\u00e1 h\u1ecdc ho\u1eb7c ph\u1ee5 gia kho\u00e1ng.<\/span><\/p>\n<h2><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">\u0110\u1ecbnh m\u1ee9c v\u00e0 t\u1ef7 l\u1ec7 c\u1ea5p ph\u1ed1i 1m3 b\u00ea t\u00f4ng m\u00e1c 300 theo ti\u00eau chu\u1ea9n B\u1ed9 X\u00e2y d\u1ef1ng<\/span><\/strong><\/h2>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">C\u1ea5p ph\u1ed1i b\u00ea t\u00f4ng m\u00e1c 300 ch\u00ednh l\u00e0 &#8220;c\u00f4ng th\u1ee9c&#8221; \u0111\u1ec3 t\u1ea1o ra b\u00ea t\u00f4ng \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng. Kh\u00e1m ph\u00e1 ngay \u0111\u1ecbnh m\u1ee9c c\u1ea5p ph\u1ed1i chu\u1ea9n d\u01b0\u1edbi \u0111\u00e2y s\u1ebd tr\u1ea3 l\u1eddi \u0111\u01b0\u1ee3c c\u00e2u h\u1ecfi: 1m3 b\u00ea t\u00f4ng m\u00e1c 300 d\u00f9ng xi m\u0103ng PCB40 c\u1ea7n bao nhi\u00eau?<\/span><\/p>\n<table class=\"dufago-table\">\n<tbody>\n<tr>\n<th>Lo\u1ea1i Xi M\u0103ng<\/th>\n<th>Xi M\u0103ng (kg)<\/th>\n<th>C\u00e1t (m\u00b3)<\/th>\n<th>\u0110\u00e1 (m\u00b3)<\/th>\n<\/tr>\n<tr>\n<td>PCB30<\/td>\n<td>439<\/td>\n<td>0.457<\/td>\n<td>0.884<\/td>\n<\/tr>\n<tr>\n<td>PCB40<\/td>\n<td>381<\/td>\n<td>0.463<\/td>\n<td>0.885<\/td>\n<\/tr>\n<tr>\n<td>PCB30<\/td>\n<td>452<\/td>\n<td>0.449<\/td>\n<td>0.875<\/td>\n<\/tr>\n<tr>\n<td>PCB40<\/td>\n<td>392<\/td>\n<td>0.456<\/td>\n<td>0.878<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">Th\u1eddi gian \u0111\u00f4ng k\u1ebft c\u1ee7a b\u00ea t\u00f4ng m\u00e1c 300<\/span><\/strong><\/h2>\n<p><span style=\"font-weight: 400; font-family: arial, helvetica, sans-serif; color: #000000;\">Th\u1eddi gian \u0111\u00f4ng k\u1ebft c\u1ee7a m\u00e1c b\u00ea t\u00f4ng 300 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t con s\u1ed1 c\u1ed1 \u0111\u1ecbnh, m\u00e0 \u0111\u01b0\u1ee3c chia th\u00e0nh 2 giai \u0111o\u1ea1n v\u00e0 ph\u1ee5 thu\u1ed9c r\u1ea5t l\u1edbn v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c nhau:<\/span><\/p>\n<h3><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">Th\u1eddi gian \u0111\u00f4ng k\u1ebft ban \u0111\u1ea7u v\u00e0 cu\u1ed1i c\u00f9ng<\/span><\/strong><\/h3>\n<p><span style=\"font-weight: 400; font-family: arial, helvetica, sans-serif; color: #000000;\">\u0110\u00e2y l\u00e0 giai \u0111o\u1ea1n b\u00ea t\u00f4ng chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i d\u1ebbo sang tr\u1ea1ng th\u00e1i c\u1ee9ng:<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">&#8211; \u0110\u00f4ng k\u1ebft s\u01a1 b\u1ed9 (B\u1eaft \u0111\u1ea7u c\u1ee9ng):<span style=\"font-weight: 400;\"> Kho\u1ea3ng <\/span>1 &#8211; 3 gi\u1edd<span style=\"font-weight: 400;\"> sau khi \u0111\u1ed5. L\u00fac n\u00e0y, b\u00ea t\u00f4ng m\u1ea5t d\u1ea7n t\u00ednh d\u1ebbo v\u00e0 kh\u00f4ng th\u1ec3 \u0111\u1ea7m l\u00e8n \u0111\u01b0\u1ee3c n\u1eefa.<\/span><\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">&#8211; \u0110\u00f4ng k\u1ebft cu\u1ed1i c\u00f9ng (C\u1ee9ng ho\u00e0n to\u00e0n b\u1ec1 m\u1eb7t):<span style=\"font-weight: 400;\"> Kho\u1ea3ng <\/span>3 &#8211; 6 gi\u1edd<span style=\"font-weight: 400;\"> sau khi \u0111\u1ed5. L\u00fac n\u00e0y, b\u00ea t\u00f4ng \u0111\u1ee7 \u0111\u1ed9 c\u1ee9ng ban \u0111\u1ea7u, b\u1ec1 m\u1eb7t c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng nh\u1eb9 (v\u00ed d\u1ee5: ng\u01b0\u1eddi \u0111i l\u1ea1i nh\u1eb9 nh\u00e0ng \u0111\u1ec3 ho\u00e0n thi\u1ec7n m\u1eb7t s\u00e0n).<\/span><\/span><\/p>\n<h3><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">Th\u1eddi gian ph\u00e1t tri\u1ec3n c\u01b0\u1eddng \u0111\u1ed9<\/span><\/strong><\/h3>\n<p><span style=\"font-weight: 400; font-family: arial, helvetica, sans-serif; color: #000000;\">Giai \u0111o\u1ea1n n\u00e0y l\u00e0 qu\u00e1 tr\u00ecnh th\u1ee7y h\u00f3a ti\u1ebfp t\u1ee5c \u0111\u1ec3 b\u00ea t\u00f4ng \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u01b0\u1eddng \u0111\u1ed9 thi\u1ebft k\u1ebf (m\u00e1c 300):<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">&#8211; C\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu l\u1ef1c trung b\u00ecnh (c\u00f3 th\u1ec3 th\u00e1o c\u1ed1p-pha d\u1ea7m, s\u00e0n):<span style=\"font-weight: 400;\"> Th\u01b0\u1eddng sau <\/span>7 &#8211; 10 ng\u00e0y<span style=\"font-weight: 400;\"> (b\u00ea t\u00f4ng c\u00f3 th\u1ec3 \u0111\u1ea1t kho\u1ea3ng 65% &#8211; 75% c\u01b0\u1eddng \u0111\u1ed9 cu\u1ed1i).<\/span><\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">&#8211; C\u01b0\u1eddng \u0111\u1ed9 thi\u1ebft k\u1ebf (\u0110\u1ea1t M\u00e1c 300):<span style=\"font-weight: 400;\"> After <\/span>28 ng\u00e0y<span style=\"font-weight: 400;\"> b\u1ea3o d\u01b0\u1ee1ng li\u00ean t\u1ee5c v\u00e0 \u0111\u00fang c\u00e1ch. \u0110\u00e2y l\u00e0 m\u1ed1c th\u1eddi gian ti\u00eau chu\u1ea9n \u0111\u1ec3 b\u00ea t\u00f4ng \u0111\u1ea1t 95-100% c\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n thi\u1ebft k\u1ebf.<\/span><\/span><\/p>\n<figure id=\"attachment_9141\" aria-describedby=\"caption-attachment-9141\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-9141 size-large\" src=\"https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-1-1024x768.jpg\" alt=\"\" width=\"1024\" height=\"768\" srcset=\"https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-1-1024x768.jpg 1024w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-1-300x225.jpg 300w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-1-768x576.jpg 768w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-1-16x12.jpg 16w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-1-750x563.jpg 750w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-1-1140x855.jpg 1140w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-1.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-9141\" class=\"wp-caption-text\">Th\u1eddi gian \u0111\u00f4ng k\u1ebft c\u1ee7a b\u00ea t\u00f4ng m\u00e1c 300<\/figcaption><\/figure>\n<h2><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">So s\u00e1nh m\u00e1c b\u00ea t\u00f4ng 300 v\u00e0 m\u00e1c b\u00ea t\u00f4ng 250<\/span><\/strong><\/h2>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">B\u00ea t\u00f4ng m\u00e1c 300 c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n danh ngh\u0129a cao h\u01a1n <strong><a href=\"https:\/\/dufago.com.vn\/en\/be-tong-mac-250-dinh-nghia-cap-phoi-ty-le-tron-va-bao-gia-moi-nhat\/\">b\u00ea t\u00f4ng m\u00e1c 250<\/a><\/strong>. Tuy nhi\u00ean, s\u1ef1 kh\u00e1c bi\u1ec7t kh\u00f4ng ch\u1ec9 n\u1eb1m \u1edf con s\u1ed1 300 v\u00e0 250, m\u00e0 c\u00f2n \u1edf y\u00eau c\u1ea7u thi\u1ebft k\u1ebf, chi ph\u00ed, c\u1ea5p ph\u1ed1i v\u00e0 b\u1ea3o d\u01b0\u1ee1ng.<\/span><\/p>\n<table class=\"dufago-table\">\n<tbody>\n<tr>\n<th>Criteria<\/th>\n<th>B\u00ea t\u00f4ng m\u00e1c 250<\/th>\n<th>B\u00ea t\u00f4ng m\u00e1c 300<\/th>\n<\/tr>\n<tr>\n<td>C\u01b0\u1eddng \u0111\u1ed9 n\u00e9n (kg\/cm\u00b2)<\/td>\n<td>~250<\/td>\n<td>~300<\/td>\n<\/tr>\n<tr>\n<td>Application<\/td>\n<td>Nh\u00e0 1\u20132 t\u1ea7ng<\/td>\n<td>Nh\u00e0 2\u20134 t\u1ea7ng<\/td>\n<\/tr>\n<tr>\n<td>L\u01b0\u1ee3ng xi m\u0103ng<\/td>\n<td>\u00cdt h\u01a1n<\/td>\n<td>Nhi\u1ec1u h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>Gi\u00e1 th\u00e0nh<\/td>\n<td>Th\u1ea5p h\u01a1n<\/td>\n<td>Cao h\u01a1n (~10\u201315%)<\/td>\n<\/tr>\n<tr>\n<td>Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i<\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>T\u1ed1t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em><span style=\"font-family: arial, helvetica, sans-serif;\"><b>Note:<\/b> B\u1ea3ng so s\u00e1nh tr\u00ean mang t\u00ednh ch\u1ea5t tham kh\u1ea3o chung<\/span><\/em><\/p>\n<p class=\"isSelectedEnd\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">M300 kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng \u201ct\u1ed1t h\u01a1n\u201d M250 trong m\u1ecdi t\u00ecnh hu\u1ed1ng. N\u1ebfu thi\u1ebft k\u1ebf y\u00eau c\u1ea7u M250, d\u00f9ng \u0111\u00fang M250, \u0111\u00fang \u0111\u1ed9 s\u1ee5t, \u0111\u00fang c\u1ea5p ph\u1ed1i v\u00e0 b\u1ea3o d\u01b0\u1ee1ng t\u1ed1t c\u00f3 th\u1ec3 hi\u1ec7u qu\u1ea3 h\u01a1n vi\u1ec7c t\u1ef1 n\u00e2ng m\u00e1c nh\u01b0ng thi c\u00f4ng kh\u00f4ng ki\u1ec3m so\u00e1t.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">N\u1ebfu \u0111ang ph\u00e2n v\u00e2n, b\u1ea1n n\u00ean xem th\u00eam b\u00e0i <a href=\"https:\/\/dufago.com.vn\/en\/chon-mac-250-hay-mac-300-do-be-tong-mong-san-nen-chon-loai-nao\/\"><strong>ch\u1ecdn m\u00e1c 250 hay m\u00e1c 300<\/strong><\/a> \u0111\u1ec3 c\u00f3 g\u00f3c nh\u00ecn r\u00f5 h\u01a1n theo t\u1eebng lo\u1ea1i c\u00f4ng tr\u00ecnh.<\/span><\/p>\n<h2><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 b\u00ea t\u00f4ng m\u00e1c 300<\/span><\/strong><\/h2>\n<h3><span style=\"color: #333399;\"><strong><span style=\"font-family: arial, helvetica, sans-serif;\">1. B\u00e1o gi\u00e1 \u0111\u1ed5 b\u00ea t\u00f4ng m\u00e1c 300 m\u1edbi nh\u1ea5t<\/span><\/strong><\/span><\/h3>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Gi\u00e1 b\u00ea t\u00f4ng m\u00e1c 300 kh\u00f4ng n\u00ean xem l\u00e0 m\u1ed9t con s\u1ed1 c\u1ed1 \u0111\u1ecbnh, v\u00ec \u0111\u01a1n gi\u00e1 th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 thay \u0111\u1ed5i theo khu v\u1ef1c giao h\u00e0ng, kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1eb7t, \u0111\u1ed9 s\u1ee5t, ph\u1ee5 gia, h\u00ecnh th\u1ee9c \u0111\u1ed5 x\u1ea3 hay b\u01a1m b\u00ea t\u00f4ng v\u00e0 th\u1eddi \u0111i\u1ec3m \u0111\u1eb7t h\u00e0ng.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\u0110\u1ec3 xem m\u1ee9c gi\u00e1 \u0111ang \u00e1p d\u1ee5ng v\u00e0 c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u00e1o gi\u00e1 chi ti\u1ebft, b\u1ea1n n\u00ean tham kh\u1ea3o <a href=\"https:\/\/dufago.com.vn\/en\/bao-gia-be-tong-tuoi-be-tong-dufago-da-nang\/\"><strong>b\u1ea3ng gi\u00e1 b\u00ea t\u00f4ng t\u01b0\u01a1i Dufago<\/strong><\/a> ho\u1eb7c g\u1eedi th\u00f4ng tin c\u00f4ng tr\u00ecnh \u0111\u1ec3 \u0111\u01b0\u1ee3c b\u00e1o gi\u00e1 ch\u00ednh x\u00e1c h\u01a1n.<\/span><\/p>\n<figure id=\"attachment_9146\" aria-describedby=\"caption-attachment-9146\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-9146\" src=\"https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-6-1024x768.jpg\" alt=\"\" width=\"1024\" height=\"768\" srcset=\"https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-6-1024x768.jpg 1024w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-6-300x225.jpg 300w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-6-768x576.jpg 768w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-6-16x12.jpg 16w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-6-750x563.jpg 750w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-6-1140x855.jpg 1140w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-6.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-9146\" class=\"wp-caption-text\">B\u00e1o gi\u00e1 \u0111\u1ed5 b\u00ea t\u00f4ng m\u00e1c 300 m\u1edbi nh\u1ea5t<\/figcaption><\/figure>\n<h3><span style=\"color: #333399;\"><strong><span style=\"font-family: arial, helvetica, sans-serif;\">2. B\u00ea t\u00f4ng m\u00e1c 300 bao l\u00e2u th\u00ec kh\u00f4 v\u00e0 \u0111\u1ea1t c\u01b0\u1eddng \u0111\u1ed9?<\/span><\/strong><\/span><\/h3>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Qu\u00e1 tr\u00ecnh kh\u00f4 c\u1ee7a b\u00ea t\u00f4ng th\u1ef1c ch\u1ea5t l\u00e0 qu\u00e1 tr\u00ecnh th\u1ee7y h\u00f3a c\u1ee7a xi m\u0103ng, d\u1eabn \u0111\u1ebfn s\u1ef1 \u0111\u00f4ng k\u1ebft v\u00e0 ph\u00e1t tri\u1ec3n c\u01b0\u1eddng \u0111\u1ed9. B\u00ea t\u00f4ng m\u00e1c 300 s\u1ebd \u0111\u1ea1t c\u01b0\u1eddng \u0111\u1ed9 thi\u1ebft k\u1ebf (m\u00e1c 300) sau 28 ng\u00e0y \u0111\u01b0\u1ee3c d\u01b0\u1ee1ng h\u1ed9 trong \u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n (\u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u1ea9m v\u00e0 nhi\u1ec7t \u0111\u1ed9 ph\u00f9 h\u1ee3p).<\/span><\/p>\n<h3><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">3. B\u00ea t\u00f4ng m\u00e1c 300 c\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">B\u00ea t\u00f4ng m\u00e1c 300 c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n t\u1ed1i thi\u1ec3u l\u00e0 300 kg\/cm\u00b2 (kilogam tr\u00ean centimet vu\u00f4ng). Trong h\u1ec7 \u0111o l\u01b0\u1eddng qu\u1ed1c t\u1ebf (SI), con s\u1ed1 n\u00e0y t\u01b0\u01a1ng \u0111\u01b0\u01a1ng kho\u1ea3ng 28.90 MPa (Megapascal).<\/span><\/p>\n<h3><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">4. B\u00ea t\u00f4ng m\u00e1c 300 ch\u1ecbu t\u1ea3i bao nhi\u00eau?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">B\u00ea t\u00f4ng m\u00e1c 300 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i tr\u1ecdng l\u1edbn, nh\u01b0ng &#8220;ch\u1ecbu t\u1ea3i bao nhi\u00eau&#8221; c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o k\u1ebft c\u1ea5u c\u1ee7a c\u00f4ng tr\u00ecnh (k\u00edch th\u01b0\u1edbc d\u1ea7m, c\u1ed9t, s\u00e0n, m\u00f3ng), l\u01b0\u1ee3ng th\u00e9p \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed (b\u00ea t\u00f4ng c\u1ed1t th\u00e9p), v\u00e0 thi\u1ebft k\u1ebf t\u1ed5ng th\u1ec3 c\u1ee7a k\u1ef9 s\u01b0.<\/span><\/p>\n<figure id=\"attachment_9144\" aria-describedby=\"caption-attachment-9144\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-9144\" src=\"https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-4-1024x768.jpg\" alt=\"\" width=\"1024\" height=\"768\" srcset=\"https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-4-1024x768.jpg 1024w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-4-300x225.jpg 300w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-4-768x576.jpg 768w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-4-16x12.jpg 16w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-4-750x563.jpg 750w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-4-1140x855.jpg 1140w, https:\/\/dufago.com.vn\/wp-content\/uploads\/2025\/07\/be-tong-mac-300-4.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-9144\" class=\"wp-caption-text\">B\u00ea t\u00f4ng m\u00e1c 300 ch\u1ecbu t\u1ea3i bao nhi\u00eau?<\/figcaption><\/figure>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">C\u00f3 th\u1ec3 k\u1ec3 \u0111\u1ebfn nh\u1eefng m\u1ee9c ch\u1ecbu t\u1ea3i c\u1ee7a M300 nh\u01b0:<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">&#8211; M\u00f3ng c\u00f4ng tr\u00ecnh d\u00e2n d\u1ee5ng v\u00e0 c\u00f4ng nghi\u1ec7p.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">&#8211; C\u1ed9t, d\u1ea7m, s\u00e0n trong nh\u00e0 cao t\u1ea7ng, nh\u00e0 x\u01b0\u1edfng.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">&#8211; C\u1ea7u, \u0111\u01b0\u1eddng, c\u00e1c c\u00f4ng tr\u00ecnh h\u1ea1 t\u1ea7ng c\u00f3 t\u1ea3i tr\u1ecdng giao th\u00f4ng l\u1edbn.<\/span><\/p>\n<h3><span style=\"color: #333399;\"><strong><span style=\"font-family: arial, helvetica, sans-serif;\">5. B\u00ea t\u00f4ng m\u00e1c 300 c\u1ea5p \u0111\u1ed9 b\u1ec1n bao nhi\u00eau?<\/span><\/strong><\/span><\/h3>\n<p><span style=\"font-weight: 400; font-family: arial, helvetica, sans-serif; color: #000000;\">B\u00ea t\u00f4ng m\u00e1c 300 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u1ea5p \u0111\u1ed9 b\u1ec1n B22.5 (theo Ti\u00eau chu\u1ea9n Vi\u1ec7t Nam TCVN).<\/span><\/p>\n<table class=\"dufago-table\">\n<tbody>\n<tr>\n<th>Thu\u1eadt ng\u1eef<\/th>\n<th>K\u00fd hi\u1ec7u<\/th>\n<th>Gi\u00e1 tr\u1ecb<\/th>\n<th>\u0110\u01a1n v\u1ecb<\/th>\n<\/tr>\n<tr>\n<td><strong><a href=\"https:\/\/dufago.com.vn\/en\/mac-be-tong-la-gi-5-loai-mac-be-tong-pho-bien\/\">Concrete grade<\/a><\/strong><\/td>\n<td>M300<\/td>\n<td>C\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n t\u1ed1i thi\u1ec3u c\u1ee7a 95% m\u1eabu th\u1eed l\u00e0 300<\/td>\n<td>kg\/cm2<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea5p \u0111\u1ed9 b\u1ec1n<\/td>\n<td>B22.5<\/td>\n<td>C\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n \u0111\u1eb7c tr\u01b0ng l\u00e0 22.5<\/td>\n<td>MPa<\/td>\n<\/tr>\n<tr>\n<td>C\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n<\/td>\n<td><\/td>\n<td>Kho\u1ea3ng 28.90<\/td>\n<td>MPa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #333399;\">\u0110\u01a1n v\u1ecb cung c\u1ea5p b\u00ea t\u00f4ng t\u01b0\u01a1i m\u00e1c 300 gi\u00e1 t\u1ed1t<\/span><\/strong><\/h2>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Khi t\u00ecm ki\u1ebfm b\u00ea t\u00f4ng t\u01b0\u01a1i m\u00e1c 300 t\u1ea1i \u0110\u00e0 N\u1eb5ng, <strong><a href=\"https:\/\/dufago.com.vn\/en\/ready-mixed-concrete-dufago-danang-city\/\">b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m Dufago<\/a><\/strong>\u00a0l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn \u0111\u00e1ng tin c\u1eady. V\u1edbi h\u1ec7 th\u1ed1ng tr\u1ea1m tr\u1ed9n hi\u1ec7n \u0111\u1ea1i v\u00e0 tr\u1ea3i d\u00e0i kh\u1eafp c\u00e1c t\u1ec9nh, Dufago kh\u00f4ng ch\u1ec9 cung c\u1ea5p b\u00ea t\u00f4ng m\u00e1c 300 v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng cao m\u00e0 c\u00f2n mang \u0111\u1ebfn gi\u00e1 c\u1ea3 c\u1ea1nh tranh.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">D\u1ecbch v\u1ee5 cung c\u1ea5p b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m m\u00e1c 300 t\u1ea1i Dufago chuy\u00ean nghi\u1ec7p, t\u1eadn t\u00e2m v\u00e0 h\u1ed7 tr\u1ee3 t\u1ed1i \u0111a m\u1ecdi c\u00f4ng tr\u00ecnh. \u0110\u1ec3 nh\u1eadn b\u00e1o gi\u00e1 b\u00ea t\u00f4ng m\u00e1c 300 chi ti\u1ebft v\u00e0 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n c\u1ee5 th\u1ec3, b\u1ea1n c\u00f3 th\u1ec3 li\u00ean h\u1ec7 tr\u1ef1c ti\u1ebfp v\u1edbi Dufago qua th\u00f4ng tin d\u01b0\u1edbi \u0111\u00e2y:<\/span><\/p>\n<style>\n\/* CH\u1ec8 \u00e1p d\u1ee5ng trong block n\u00e0y *\/<\/p>\n<p>\/* \u00c9p link kh\u00f4ng b\u1ecb theme ph\u00e1 *\/<br \/>#dufago-fixed a{<br \/>  display:inline !important;<br \/>  float:none !important;<br \/>  width:auto !important;<br \/>  white-space:nowrap !important;<br \/>  margin:0 !important;<br \/>  padding:0 !important;<br \/>}<\/p>\n<p>\/* \u0110\u01b0a label + value l\u00ean c\u00f9ng 1 h\u00e0ng ch\u1eafc ch\u1eafn *\/<br \/>#dufago-fixed .line{<br \/>  display:flex !important;<br \/>  gap:6px;<br \/>  align-items:baseline;<br \/>  flex-wrap:nowrap;<br \/>}<\/p>\n<p>\/* Label *\/<br \/>#dufago-fixed .label{<br \/>  font-weight:900;<br \/>  white-space:nowrap;<br \/>}<br \/><\/style>\n<section id=\"dufago-fixed\" style=\"background: #fff; border: 1px solid #e5e5e5; border-left: 6px solid #c00000; border-radius: 12px; padding: 22px 22px 20px; margin: 32px 0; box-shadow: 0 6px 18px rgba(0,0,0,.06); font-family: Arial,Helvetica,sans-serif; color: #111; box-sizing: border-box;\">\n<div style=\"margin: 0 0 14px; color: #c00000; font-size: 18px; font-weight: 900; text-transform: uppercase; border-bottom: 1px dashed #e0e0e0; padding-bottom: 10px; line-height: 1.25;\">DUFAGO CONCRETE<\/div>\n<div style=\"display: flex; gap: 18px; flex-wrap: wrap; box-sizing: border-box;\">\n<div style=\"flex: 1; min-width: 260px;\">\n<div class=\"line\" style=\"margin: 0 0 10px; font-size: 14px; line-height: 1.6;\"><span class=\"label\" style=\"font-weight: 900;\">Tax ID:<\/span><br \/>\n0402099824<\/div>\n<div class=\"line\" style=\"margin: 0 0 10px; font-size: 14px; line-height: 1.6;\"><span class=\"label\" style=\"font-weight: 900;\">Hotline:<\/span><br \/>\n<a style=\"color: #c00000; text-decoration: none; font-weight: 900;\" href=\"tel:0915737973\">0915 737 973<\/a><\/div>\n<div class=\"line\" style=\"margin: 0 0 10px; font-size: 14px; line-height: 1.6;\"><span class=\"label\" style=\"font-weight: 900;\">Website:<\/span><br \/>\n<a style=\"color: #0b63ce; text-decoration: none; font-weight: 900;\" href=\"https:\/\/dufago.com.vn\/en\/\" target=\"_blank\" rel=\"noopener\">www.dufago.com.vn<\/a><\/div>\n<div style=\"margin: 0; font-size: 14px; line-height: 1.6;\"><span class=\"label\" style=\"font-weight: 900; white-space: nowrap;\">Representative Office:<\/span><br \/>\n4th Floor, 76-78 Bach Dang Street, Hai Chau Ward, Da Nang City<\/div>\n<\/div>\n<div style=\"flex: 1; min-width: 260px;\">\n<div style=\"margin: 0 0 10px; font-size: 14px; line-height: 1.6;\"><span style=\"font-weight: 900;\">Dufago Cam Le Concrete Factory:<\/span><br \/>\nGroup 33, Cam Le Ward, Da Nang City<\/div>\n<div style=\"margin: 0 0 10px; font-size: 14px; line-height: 1.6;\"><span style=\"font-weight: 900;\">Nh\u00e0 m\u00e1y B\u00ea t\u00f4ng Dufago Thanh Vinh:<\/span><br \/>\nL\u00f4 C20, C\u1ee5m C\u00f4ng nghi\u1ec7p Thanh Vinh, ph\u01b0\u1eddng Li\u00ean Chi\u1ec3u, TP. \u0110\u00e0 N\u1eb5ng<\/div>\n<div style=\"margin: 0 0 10px; font-size: 14px; line-height: 1.6;\"><span style=\"font-weight: 900;\">Nh\u00e0 m\u00e1y B\u00ea t\u00f4ng Dufago Chu Lai:<\/span><br \/>\nKhu C\u00f4ng nghi\u1ec7p v\u00e0 H\u1eadu c\u1ea7n c\u1ea3ng Tam Hi\u1ec7p, X\u00e3 N\u00fai Th\u00e0nh, TP. \u0110\u00e0 N\u1eb5ng<\/div>\n<div style=\"margin: 0; font-size: 14px; line-height: 1.6;\"><span style=\"font-weight: 900;\">Nh\u00e0 m\u00e1y B\u00ea t\u00f4ng Dufago T\u1ecbnh Phong:<\/span><br \/>\nL\u00f4 CN 08 &#8211; KCN T\u1ecbnh Phong, X\u00e3 Th\u1ecd Phong, T\u1ec9nh Qu\u1ea3ng Ng\u00e3i<\/div>\n<\/div>\n<\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>B\u00ea t\u00f4ng m\u00e1c 300, th\u01b0\u1eddng vi\u1ebft l\u00e0 M300, l\u00e0 nh\u00f3m b\u00ea t\u00f4ng c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n cao h\u01a1n M250 v\u00e0 \u0111\u01b0\u1ee3c d\u00f9ng trong nhi\u1ec1u h\u1ea1ng m\u1ee5c ch\u1ecbu l\u1ef1c nh\u01b0 m\u00f3ng, d\u1ea7m, s\u00e0n, c\u1ed9t, nh\u00e0 ph\u1ed1 nhi\u1ec1u t\u1ea7ng, nh\u00e0 x\u01b0\u1edfng ho\u1eb7c c\u1ea5u ki\u1ec7n c\u1ea7n \u0111\u1ed9 b\u1ec1n cao h\u01a1n. Tuy nhi\u00ean, kh\u00f4ng n\u00ean hi\u1ec3u r\u1eb1ng c\u00f4ng [&hellip;]<\/p>","protected":false},"author":7,"featured_media":9140,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47,35],"tags":[],"class_list":["post-9139","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-trong-nganh","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/dufago.com.vn\/en\/wp-json\/wp\/v2\/posts\/9139","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dufago.com.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dufago.com.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dufago.com.vn\/en\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/dufago.com.vn\/en\/wp-json\/wp\/v2\/comments?post=9139"}],"version-history":[{"count":18,"href":"https:\/\/dufago.com.vn\/en\/wp-json\/wp\/v2\/posts\/9139\/revisions"}],"predecessor-version":[{"id":10639,"href":"https:\/\/dufago.com.vn\/en\/wp-json\/wp\/v2\/posts\/9139\/revisions\/10639"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dufago.com.vn\/en\/wp-json\/wp\/v2\/media\/9140"}],"wp:attachment":[{"href":"https:\/\/dufago.com.vn\/en\/wp-json\/wp\/v2\/media?parent=9139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dufago.com.vn\/en\/wp-json\/wp\/v2\/categories?post=9139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dufago.com.vn\/en\/wp-json\/wp\/v2\/tags?post=9139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}