{"id":3740,"date":"2020-11-13T14:10:25","date_gmt":"2020-11-13T07:10:25","guid":{"rendered":"https:\/\/dufago.com.vn\/?p=3740"},"modified":"2026-11-04T15:15:19","modified_gmt":"2026-11-04T08:15:19","slug":"be-tong-tuoi-la-gi","status":"publish","type":"post","link":"https:\/\/dufago.com.vn\/en\/what-is-mixed-concrete\/","title":{"rendered":"B\u00ea t\u00f4ng t\u01b0\u01a1i l\u00e0 g\u00ec? Ngu\u1ed3n g\u1ed1c, th\u00e0nh ph\u1ea7n, \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 c\u00e1ch \u0111\u1eb7t h\u00e0ng"},"content":{"rendered":"

B\u00ea t\u00f4ng t\u01b0\u01a1i l\u00e0 b\u00ea t\u00f4ng \u0111\u01b0\u1ee3c c\u00e2n \u0111ong v\u00e0 tr\u1ed9n s\u1eb5n t\u1ea1i tr\u1ea1m tr\u1ed9n theo \u0111\u00fang m\u00e1c, r\u1ed3i xe b\u1ed3n ch\u1edf t\u1edbi c\u00f4ng tr\u00ecnh khi h\u1ed7n h\u1ee3p c\u00f2n d\u1ebbo \u0111\u1ec3 \u0111\u1ed5 ngay. B\u00ea t\u00f4ng t\u01b0\u01a1i c\u00f2n g\u1ecdi l\u00e0 b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m hay b\u00ea t\u00f4ng tr\u1ed9n s\u1eb5n. So v\u1edbi t\u1ef1 tr\u1ed9n, b\u00ea t\u00f4ng t\u01b0\u01a1i \u0111\u1ec1u h\u01a1n, nhanh h\u01a1n v\u00e0 c\u00f3 phi\u1ebfu giao h\u00e0ng, m\u1eabu n\u00e9n \u0111\u1ec3 ki\u1ec3m tra. \u0110\u1ed5i l\u1ea1i, ng\u01b0\u1eddi \u0111\u1eb7t ph\u1ea3i chu\u1ea9n b\u1ecb l\u1ed1i v\u00e0o cho xe, c\u1ed1p pha v\u00e0 ng\u01b0\u1eddi \u0111\u1ed5 tr\u01b0\u1edbc gi\u1edd xe t\u1edbi.<\/span><\/strong><\/p>\n

1. B\u00ea t\u00f4ng t\u01b0\u01a1i l\u00e0 g\u00ec?<\/span><\/strong><\/span><\/h2>\n

B\u00ea t\u00f4ng t\u01b0\u01a1i l\u00e0 h\u1ed7n h\u1ee3p xi m\u0103ng, c\u00e1t, \u0111\u00e1, n\u01b0\u1edbc v\u00e0 ph\u1ee5 gia, \u0111\u01b0\u1ee3c \u0111\u1ecbnh l\u01b0\u1ee3ng b\u1eb1ng c\u00e2n t\u1ef1 \u0111\u1ed9ng v\u00e0 tr\u1ed9n t\u1ea1i tr\u1ea1m theo c\u1ea5p ph\u1ed1i \u0111\u00e3 thi\u1ebft k\u1ebf cho t\u1eebng m\u00e1c. Xe b\u1ed3n (xe tr\u1ed9n c\u00f3 th\u00f9ng quay) ch\u1edf h\u1ed7n h\u1ee3p t\u1edbi c\u00f4ng tr\u00ecnh. Tr\u00ean \u0111\u01b0\u1eddng \u0111i, th\u00f9ng xe quay li\u00ean t\u1ee5c \u0111\u1ec3 b\u00ea t\u00f4ng kh\u00f4ng b\u1ecb ph\u00e2n t\u1ea7ng. Ch\u1eef \u201ct\u01b0\u01a1i\u201d ngh\u0129a l\u00e0 b\u00ea t\u00f4ng t\u1edbi n\u01a1i khi c\u00f2n d\u1ebbo, ch\u01b0a \u0111\u00f4ng k\u1ebft, v\u00e0 ph\u1ea3i \u0111\u1ed5 trong th\u1eddi gian cho ph\u00e9p.<\/span><\/p>\n

B\u00ea t\u00f4ng t\u01b0\u01a1i v\u00e0<\/span> commercial concrete<\/a> l\u00e0 c\u00f9ng m\u1ed9t lo\u1ea1i s\u1ea3n ph\u1ea9m. \u201cTh\u01b0\u01a1ng ph\u1ea9m\u201d nh\u1ea5n v\u00e0o vi\u1ec7c b\u00ea t\u00f4ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t \u0111\u1ec3 b\u00e1n theo kh\u1ed1i (m\u00b3); \u201ct\u01b0\u01a1i\u201d nh\u1ea5n v\u00e0o tr\u1ea1ng th\u00e1i c\u00f2n d\u1ebbo khi giao. Ti\u1ebfng Anh g\u1ecdi l\u00e0 ready-mixed concrete.<\/span><\/span><\/p>\n

\"B\u00ea
B\u00ea t\u00f4ng t\u01b0\u01a1i \u0111\u01b0\u1ee3c tr\u1ed9n t\u1ea1i tr\u1ea1m v\u00e0 ch\u1edf t\u1edbi c\u00f4ng tr\u00ecnh khi c\u00f2n d\u1ebbo<\/span><\/figcaption><\/figure>\n

B\u00ea t\u00f4ng t\u01b0\u01a1i g\u1ed3m nh\u1eefng g\u00ec?<\/span><\/strong><\/h3>\n\n\n\n\n\n\n\n\n
Th\u00e0nh ph\u1ea7n<\/span><\/th>\nVai tr\u00f2 trong b\u00ea t\u00f4ng<\/span><\/th>\n<\/tr>\n
Xi m\u0103ng<\/span><\/td>\nCh\u1ea5t k\u1ebft d\u00ednh. Khi g\u1eb7p n\u01b0\u1edbc, xi m\u0103ng \u0111\u00f4ng c\u1ee9ng v\u00e0 g\u1eafn c\u00e1t, \u0111\u00e1 th\u00e0nh kh\u1ed1i<\/span><\/td>\n<\/tr>\n
C\u00e1t<\/span><\/td>\nL\u1ea5p khe gi\u1eefa c\u00e1c vi\u00ean \u0111\u00e1, gi\u00fap b\u00ea t\u00f4ng \u0111\u1eb7c ch\u1eafc<\/span><\/td>\n<\/tr>\n
\u0110\u00e1 d\u0103m (th\u01b0\u1eddng \u0111\u00e1 1\u00d72)<\/span><\/td>\nKhung ch\u1ecbu l\u1ef1c ch\u00ednh c\u1ee7a b\u00ea t\u00f4ng<\/span><\/td>\n<\/tr>\n
N\u01b0\u1edbc<\/span><\/td>\nPh\u1ea3n \u1ee9ng v\u1edbi xi m\u0103ng v\u00e0 t\u1ea1o \u0111\u1ed9 d\u1ebbo \u0111\u1ec3 \u0111\u1ed5. Th\u1eeba n\u01b0\u1edbc th\u00ec b\u00ea t\u00f4ng d\u1ec5 \u0111\u1ed5 nh\u01b0ng y\u1ebfu \u0111i<\/span><\/td>\n<\/tr>\n
Ph\u1ee5 gia<\/span><\/td>\n\u0110i\u1ec1u ch\u1ec9nh t\u00ednh ch\u1ea5t: gi\u1eef \u0111\u1ed9 s\u1ee5t l\u00e2u h\u01a1n khi \u0111\u01b0\u1eddng xa, \u0111\u00f4ng k\u1ebft nhanh \u0111\u1ec3 th\u00e1o c\u1ed1p pha s\u1edbm, ch\u1ed1ng th\u1ea5m\u2026<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

T\u1ef7 l\u1ec7 c\u00e1c th\u00e0nh ph\u1ea7n (c\u1ea5p ph\u1ed1i) quy\u1ebft \u0111\u1ecbnh b\u00ea t\u00f4ng \u0111\u1ea1t m\u00e1c n\u00e0o. \u1ede tr\u1ea1m, c\u1ea5p ph\u1ed1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u00e0 th\u00ed nghi\u1ec7m tr\u01b0\u1edbc, r\u1ed3i c\u00e2n theo t\u1eebng m\u1ebb, n\u00ean m\u1ebb sau gi\u1ed1ng m\u1ebb tr\u01b0\u1edbc. \u0110\u00e2y l\u00e0 ch\u1ed7 kh\u00e1c l\u1edbn nh\u1ea5t so v\u1edbi \u0111ong b\u1eb1ng x\u00f4 \u1edf c\u00f4ng tr\u00ecnh. Mu\u1ed1n bi\u1ebft t\u1eebng lo\u1ea1i ph\u1ee5 gia l\u00e0m g\u00ec, xem b\u00e0i<\/span> ph\u1ee5 gia b\u00ea t\u00f4ng<\/a>.<\/span><\/p>\n

2. Ngu\u1ed3n g\u1ed1c c\u1ee7a b\u00ea t\u00f4ng t\u01b0\u01a1i<\/span><\/strong><\/h2>\n

B\u00ea t\u00f4ng \u0111\u00e3 c\u00f3 t\u1eeb r\u1ea5t l\u00e2u. Nh\u01b0ng tr\u1ed9n \u1edf m\u1ed9t n\u01a1i r\u1ed3i ch\u1edf \u0111i b\u00e1n cho nhi\u1ec1u c\u00f4ng tr\u00ecnh l\u00e0 chuy\u1ec7n c\u1ee7a th\u1ebf k\u1ef7 20, khi c\u00f3 tr\u1ea1m tr\u1ed9n v\u00e0 xe t\u1ea3i \u0111\u1ec3 ch\u1edf; xe tr\u1ed9n quay th\u00f9ng ra \u0111\u1eddi sau \u0111\u00f3 \u00edt n\u0103m.<\/span><\/p>\n\n\n\n\n\n\n\n\n\n
N\u0103m<\/span><\/th>\nM\u1ed1c<\/span><\/th>\n<\/tr>\n
1913<\/span><\/td>\nL\u00f4 b\u00ea t\u00f4ng tr\u1ed9n s\u1eb5n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c cho l\u00e0 giao \u1edf Baltimore (M\u1ef9). M\u1ed1c n\u00e0y \u0111\u01b0\u1ee3c tr\u00edch nhi\u1ec1u nh\u1ea5t, d\u00f9 v\u1eabn c\u00f3 \u00fd ki\u1ebfn kh\u00e1c v\u1ec1 l\u1ea7n giao \u0111\u1ea7u ti\u00ean [1] [2]<\/span><\/td>\n<\/tr>\n
1916<\/span><\/td>\nStephen Stepanian \u1edf Columbus, Ohio (M\u1ef9) n\u1ed9p \u0111\u01a1n s\u00e1ng ch\u1ebf xe tr\u1ed9n b\u00ea t\u00f4ng (\u0111\u01a1n b\u1ecb t\u1eeb ch\u1ed1i), \u00fd t\u01b0\u1edfng gh\u00e9p th\u00f9ng tr\u1ed9n l\u00ean xe t\u1ea3i [2]<\/span><\/td>\n<\/tr>\n
1926<\/span><\/td>\nB\u00ea t\u00f4ng l\u1ea7n \u0111\u1ea7u \u0111\u01b0\u1ee3c tr\u1ed9n v\u00e0 ch\u1edf b\u1eb1ng xe tr\u1ed9n quay th\u00f9ng (transit mixer), ti\u1ec1n th\u00e2n c\u1ee7a xe b\u1ed3n ng\u00e0y nay [2]<\/span><\/td>\n<\/tr>\n
1929<\/span><\/td>\nRi\u00eang n\u01b0\u1edbc M\u1ef9 \u0111\u00e3 c\u00f3 h\u01a1n 100 tr\u1ea1m tr\u1ed9n b\u00ea t\u00f4ng ho\u1ea1t \u0111\u1ed9ng [1] [2]<\/span><\/td>\n<\/tr>\n
1930<\/span><\/td>\nTr\u1ea1m b\u00ea t\u00f4ng tr\u1ed9n s\u1eb5n \u0111\u1ea7u ti\u00ean c\u1ee7a Anh x\u00e2y \u1edf Bedfont, Middlesex [2]<\/span><\/td>\n<\/tr>\n
T\u1eeb th\u1eadp ni\u00ean 1960<\/span><\/td>\nNg\u00e0nh b\u00ea t\u00f4ng tr\u1ed9n s\u1eb5n m\u1edbi m\u1edf r\u1ed9ng m\u1ea1nh v\u00e0 ph\u00e1t tri\u1ec3n li\u00ean t\u1ee5c t\u1edbi nay [1]<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

B\u00ea t\u00f4ng t\u01b0\u01a1i thay d\u1ea7n c\u00e1ch tr\u1ed9n t\u1ea1i ch\u1ed7 v\u00ec c\u00f4ng tr\u00ecnh ng\u00e0y c\u00e0ng l\u1edbn v\u00e0 cao. Tr\u1ed9n tay hay m\u00e1y tr\u1ed9n nh\u1ecf kh\u00f4ng k\u1ecbp c\u1ea5p \u0111\u1ee7 b\u00ea t\u00f4ng cho m\u1ed9t s\u00e0n \u0111\u1ed5 li\u1ec1n m\u1ea1ch. Ch\u1ea5t l\u01b0\u1ee3ng c\u0169ng kh\u00f3 \u0111\u1ec1u gi\u1eefa c\u00e1c m\u1ebb. Khi c\u00f3 tr\u1ea1m tr\u1ed9n, xe b\u1ed3n, r\u1ed3i xe b\u01a1m, ng\u01b0\u1eddi ta \u0111\u1ed5 \u0111\u01b0\u1ee3c h\u00e0ng ch\u1ee5c, h\u00e0ng tr\u0103m kh\u1ed1i trong m\u1ed9t \u0111\u1ee3t v\u1edbi c\u00f9ng m\u1ed9t m\u00e1c.<\/span><\/p>\n

\u1ede \u0110\u00e0 N\u1eb5ng, B\u00ea t\u00f4ng Dufago ph\u00e1t tri\u1ec3n t\u1eeb Dinco Concrete (ho\u1ea1t \u0111\u1ed9ng t\u1eeb n\u0103m 2007) v\u00e0 hi\u1ec7n c\u1ea5p b\u00ea t\u00f4ng t\u01b0\u01a1i t\u1eeb c\u00e1c tr\u1ea1m t\u1ea1i \u0110\u00e0 N\u1eb5ng v\u00e0 Qu\u1ea3ng Ng\u00e3i.<\/span><\/p>\n

3. B\u00ea t\u00f4ng t\u01b0\u01a1i \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t v\u00e0 giao t\u1edbi c\u00f4ng tr\u00ecnh nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/strong><\/h2>\n
    \n
  1. Thi\u1ebft k\u1ebf c\u1ea5p ph\u1ed1i.<\/strong> T\u1eeb m\u00e1c v\u00e0 \u0111\u1ed9 s\u1ee5t kh\u00e1ch \u0111\u1eb7t, tr\u1ea1m ch\u1ecdn t\u1ef7 l\u1ec7 xi m\u0103ng, c\u00e1t, \u0111\u00e1, n\u01b0\u1edbc, ph\u1ee5 gia v\u00e0 th\u00ed nghi\u1ec7m tr\u01b0\u1edbc. \u1ede Dufago, th\u00ed nghi\u1ec7m thi\u1ebft k\u1ebf c\u1ea5p ph\u1ed1i \u0111\u00e3 n\u1eb1m trong gi\u00e1 b\u00ea t\u00f4ng.<\/span><\/li>\n
  2. C\u00e2n \u0111ong v\u00e0 tr\u1ed9n t\u1ea1i tr\u1ea1m.<\/strong> V\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c c\u00e2n t\u1ef1 \u0111\u1ed9ng theo c\u1ea5p ph\u1ed1i, tr\u1ed9n trong c\u1ed1i tr\u1ed9n c\u1ee7a tr\u1ea1m r\u1ed3i x\u1ea3 v\u00e0o xe b\u1ed3n.<\/span><\/li>\n
  3. V\u1eadn chuy\u1ec3n b\u1eb1ng xe b\u1ed3n.<\/strong> Th\u00f9ng xe quay su\u1ed1t \u0111\u01b0\u1eddng \u0111i \u0111\u1ec3 b\u00ea t\u00f4ng kh\u00f4ng l\u1eafng, kh\u00f4ng ph\u00e2n t\u1ea7ng. \u0110\u01b0\u1eddng nh\u1ecf, xe l\u1edbn kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c th\u00ec d\u00f9ng xe nh\u1ecf (ch\u1edf t\u1ed1i \u0111a 5 m\u00b3 m\u1ed7i chuy\u1ebfn).<\/span><\/li>\n
  4. Ki\u1ec3m tra t\u1ea1i c\u00f4ng tr\u00ecnh.<\/strong> \u0110\u1ed1i chi\u1ebfu phi\u1ebfu giao h\u00e0ng, \u0111o \u0111\u1ed9 s\u1ee5t, l\u1ea5y m\u1eabu n\u00e9n (chi ti\u1ebft \u1edf ph\u1ea7n ki\u1ec3m tra b\u00ean d\u01b0\u1edbi).<\/span><\/li>\n
  5. \u0110\u1ed5 b\u00ea t\u00f4ng.<\/strong> X\u1ea3 th\u1eb3ng t\u1eeb m\u00e1ng xe n\u1ebfu xe \u0111\u1ee9ng s\u00e1t ch\u1ed7 \u0111\u1ed5 (m\u00f3ng, n\u1ec1n); l\u00ean cao ho\u1eb7c v\u00e0o s\u00e2u th\u00ec d\u00f9ng xe b\u01a1m b\u00ea t\u00f4ng c\u1ea7n<\/a> hay b\u01a1m ngang<\/a> \u0111\u01b0a b\u00ea t\u00f4ng t\u1edbi v\u1ecb tr\u00ed.<\/span><\/li>\n<\/ol>\n

    B\u00ea t\u00f4ng t\u01b0\u01a1i b\u1eaft \u0111\u1ea7u \u0111\u00f4ng k\u1ebft theo th\u1eddi gian, nhanh h\u01a1n khi tr\u1eddi n\u00f3ng. V\u00ec v\u1eady ph\u1ea3i \u0111\u1ed5 xong trong th\u1eddi gian cho ph\u00e9p k\u1ec3 t\u1eeb l\u00fac xu\u1ea5t tr\u1ea1m. Khi \u0111\u1eb7t h\u00e0ng, tr\u1ea1m Dufago b\u00e1o th\u1eddi gian \u0111\u01b0\u1ee3c \u0111\u1ed5 k\u1ec3 t\u1eeb gi\u1edd xu\u1ea5t, v\u00e0 c\u00f3 th\u1ec3 gi\u00e3n c\u00e1ch c\u00e1c xe theo t\u1ed1c \u0111\u1ed9 \u0111\u1ed5 \u1edf c\u00f4ng tr\u00ecnh. Th\u1eddi gian c\u1ee5 th\u1ec3 theo nhi\u1ec7t \u0111\u1ed9 v\u00e0 ph\u1ee5 gia xem \u1edf b\u00e0i<\/span> th\u1eddi gian \u0111\u1ed5 b\u00ea t\u00f4ng t\u01b0\u01a1i<\/a>.<\/span><\/p>\n

    4. M\u00e1c b\u00ea t\u00f4ng t\u01b0\u01a1i th\u01b0\u1eddng d\u00f9ng cho t\u1eebng h\u1ea1ng m\u1ee5c<\/span><\/strong><\/h2>\n

    M\u00e1c b\u00ea t\u00f4ng (M200, M250, M300\u2026) l\u00e0 c\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n c\u1ee7a m\u1eabu b\u00ea t\u00f4ng sau 28 ng\u00e0y, t\u00ednh b\u1eb1ng kG\/cm\u00b2. V\u00ed d\u1ee5, m\u1eabu M250 sau 28 ng\u00e0y ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c kho\u1ea3ng 250 kG\/cm\u00b2. B\u1ea3n v\u1ebd m\u1edbi th\u01b0\u1eddng ghi c\u1ea5p \u0111\u1ed9 b\u1ec1n B theo TCVN 5574:2018 [3]; quy \u0111\u1ed5i g\u1ea7n \u0111\u00fang M250 \u2248 B20 v\u00e0 M300 \u2248 B22,5. Xem th\u00eam b\u00e0i <\/span>m\u00e1c b\u00ea<\/span> t\u00f4ng l\u00e0 g\u00ec<\/a>.<\/span><\/p>\n\n\n\n\n\n\n\n\n
    M\u00e1c<\/span><\/th>\nH\u1ea1ng m\u1ee5c th\u01b0\u1eddng d\u00f9ng (tham kh\u1ea3o)<\/span><\/th>\n<\/tr>\n
    M100\u2013M150<\/span><\/td>\nB\u00ea t\u00f4ng l\u00f3t m\u00f3ng, l\u00f3t n\u1ec1n, ch\u1ed7 kh\u00f4ng ch\u1ecbu l\u1ef1c<\/span><\/td>\n<\/tr>\n
    M200<\/span><\/td>\nN\u1ec1n nh\u00e0, s\u00e2n, l\u1ed1i \u0111i, \u0111\u01b0\u1eddng n\u1ed9i b\u1ed9 t\u1ea3i nh\u1eb9<\/span><\/td>\n<\/tr>\n
    M250<\/span><\/td>\nM\u00f3ng, c\u1ed9t, d\u1ea7m, s\u00e0n nh\u00e0 d\u00e2n th\u00f4ng th\u01b0\u1eddng<\/span><\/td>\n<\/tr>\n
    M300<\/span><\/td>\nNh\u00e0 nhi\u1ec1u t\u1ea7ng, s\u00e0n nh\u1ecbp l\u1edbn, m\u00f3ng ch\u1ecbu t\u1ea3i l\u1edbn<\/span><\/td>\n<\/tr>\n
    M350\u2013M400<\/span><\/td>\nNh\u00e0 cao t\u1ea7ng, k\u1ebft c\u1ea5u ch\u1ecbu l\u1ef1c l\u1edbn theo thi\u1ebft k\u1ebf<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    M\u00e1c d\u00f9ng th\u1eadt l\u00e0 m\u00e1c ghi tr\u00ean b\u1ea3n v\u1ebd k\u1ebft c\u1ea5u. B\u1ea3ng tr\u00ean ch\u1ec9 \u0111\u1ec3 h\u00ecnh dung khi ch\u01b0a c\u00f3 b\u1ea3n v\u1ebd. Ph\u00e2n v\u00e2n gi\u1eefa hai m\u00e1c ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u00ec \u0111\u1ecdc<\/span> n\u00ean ch\u1ecdn m\u00e1c 250 hay m\u00e1c 300<\/a>.<\/span><\/p>\n

    C\u00f9ng v\u1edbi m\u00e1c, khi \u0111\u1eb7t b\u00ea t\u00f4ng t\u01b0\u01a1i c\u1ea7n b\u00e1o \u0111\u1ed9 s\u1ee5t<\/strong>, t\u1ee9c \u0111\u1ed9 d\u1ebbo c\u1ee7a h\u1ed7n h\u1ee3p. B\u00ea t\u00f4ng t\u01b0\u01a1i Dufago c\u00f3 \u0111\u1ed9 s\u1ee5t chu\u1ea9n 12 \u00b1 2 cm. \u0110\u1ed5 b\u1eb1ng b\u01a1m th\u01b0\u1eddng d\u00f9ng 12 \u00b1 2 ho\u1eb7c 14 \u00b1 2 cm. C\u00e1ch \u0111o v\u00e0 b\u1ea3ng tra theo h\u1ea1ng m\u1ee5c c\u00f3 \u1edf b\u00e0i<\/span> \u0111\u1ed9 s\u1ee5t b\u00ea t\u00f4ng<\/a>.<\/span><\/p>\n

    5. \u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a b\u00ea t\u00f4ng t\u01b0\u01a1i<\/span><\/strong><\/h2>\n
    \"\u01afu
    C\u00e1c \u01b0u \u0111i\u1ec3m ch\u00ednh c\u1ee7a b\u00ea t\u00f4ng t\u01b0\u01a1i khi \u0111\u1ed5 m\u00f3ng, s\u00e0n<\/span><\/figcaption><\/figure>\n\n\n\n\n\n\n\n\n
    \u01afu \u0111i\u1ec3m<\/span><\/th>\nNh\u01b0\u1ee3c \u0111i\u1ec3m<\/span><\/th>\n<\/tr>\n
    Ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ec1u gi\u1eefa c\u00e1c xe v\u00ec c\u00e2n theo c\u1ea5p ph\u1ed1i \u0111\u00e3 th\u00ed nghi\u1ec7m<\/span><\/td>\nC\u1ea7n l\u1ed1i v\u00e0o cho xe b\u1ed3n; \u0111\u01b0\u1eddng nh\u1ecf ph\u1ea3i d\u00f9ng xe nh\u1ecf ho\u1eb7c b\u01a1m ngang<\/span><\/td>\n<\/tr>\n
    \u0110\u1ed5 nhanh, li\u00ean t\u1ee5c, \u00edt m\u1ea1ch ng\u1eebng; m\u1ed9t s\u00e0n c\u00f3 th\u1ec3 \u0111\u1ed5 xong trong m\u1ed9t \u0111\u1ee3t<\/span><\/td>\nPh\u1ea3i \u0111\u1ed5 trong th\u1eddi gian cho ph\u00e9p, n\u00ean c\u1ed1p pha, c\u1ed1t th\u00e9p, ng\u01b0\u1eddi \u0111\u1ed5 ph\u1ea3i s\u1eb5n s\u00e0ng tr\u01b0\u1edbc gi\u1edd xe t\u1edbi<\/span><\/td>\n<\/tr>\n
    Kh\u00f4ng c\u1ea7n b\u00e3i ch\u1ee9a c\u00e1t, \u0111\u00e1, xi m\u0103ng; c\u00f4ng tr\u01b0\u1eddng s\u1ea1ch, \u00edt hao h\u1ee5t v\u1eadt li\u1ec7u<\/span><\/td>\nXe \u0111\u00e3 xu\u1ea5t tr\u1ea1m th\u00ec ho\u00e3n v\u1eabn t\u00ednh ph\u00ed, k\u1ec3 c\u1ea3 ho\u00e3n v\u00ec m\u01b0a<\/span><\/td>\n<\/tr>\n
    C\u00f3 phi\u1ebfu giao h\u00e0ng ghi m\u00e1c, kh\u1ed1i l\u01b0\u1ee3ng; l\u1ea5y \u0111\u01b0\u1ee3c m\u1eabu n\u00e9n \u0111\u1ec3 ki\u1ec3m tra<\/span><\/td>\nCh\u1ea5t l\u01b0\u1ee3ng ph\u1ee5 thu\u1ed9c nh\u00e0 cung c\u1ea5p, n\u00ean v\u1eabn c\u1ea7n ki\u1ec3m tra khi nh\u1eadn<\/span><\/td>\n<\/tr>\n
    \u00cdt nh\u00e2n c\u00f4ng tr\u1ed9n, gi\u1ea3m s\u1ee9c ng\u01b0\u1eddi \u1edf c\u00f4ng tr\u00ecnh<\/span><\/td>\nKh\u1ed1i l\u01b0\u1ee3ng nh\u1ecf th\u00ec ph\u00ed b\u01a1m t\u00ednh theo l\u1ea7n (b\u01a1m c\u1ea7n d\u01b0\u1edbi 20 m\u00b3, b\u01a1m ngang d\u01b0\u1edbi 30 m\u00b3), chia ra m\u1ed7i kh\u1ed1i cao h\u01a1n<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    B\u00ea t\u00f4ng t\u01b0\u01a1i c\u00f3 t\u1ed1t kh\u00f4ng?<\/span><\/strong><\/h3>\n

    C\u00f3, v\u1edbi \u0111i\u1ec1u ki\u1ec7n \u0111\u1eb7t \u0111\u00fang m\u00e1c, \u0111\u00fang \u0111\u1ed9 s\u1ee5t v\u00e0 \u0111\u1ed5, \u0111\u1ea7m, b\u1ea3o d\u01b0\u1ee1ng \u0111\u00fang c\u00e1ch. B\u00ea t\u00f4ng t\u01b0\u01a1i t\u1ed1t h\u01a1n t\u1ef1 tr\u1ed9n \u1edf ch\u1ed7 \u0111\u1ec1u<\/strong> and ki\u1ec3m tra \u0111\u01b0\u1ee3c<\/strong>. M\u1ed7i xe c\u00f9ng m\u1ed9t c\u1ea5p ph\u1ed1i, c\u00f3 phi\u1ebfu v\u00e0 c\u00f3 m\u1eabu n\u00e9n 28 ng\u00e0y \u0111\u1ec3 \u0111\u1ed1i chi\u1ebfu. B\u00ea t\u00f4ng t\u1ef1 tr\u1ed9n ph\u1ee5 thu\u1ed9c ng\u01b0\u1eddi \u0111ong x\u00f4, l\u01b0\u1ee3ng n\u01b0\u1edbc th\u00eam v\u00e0o v\u00e0 th\u1eddi gian tr\u1ed9n, n\u00ean m\u1ebb n\u00e0y kh\u00e1c m\u1ebb kia.<\/span><\/p>\n

    B\u00ea t\u00f4ng t\u01b0\u01a1i th\u01b0\u1eddng k\u00e9m \u0111i v\u00ec nh\u1eefng vi\u1ec7c \u1edf c\u00f4ng tr\u00ecnh: t\u1ef1 \u00fd th\u00eam n\u01b0\u1edbc cho d\u1ec5 \u0111\u1ed5, \u0111\u1ec3 xe ch\u1edd qu\u00e1 l\u00e2u, \u0111\u1ea7m thi\u1ebfu, kh\u00f4ng gi\u1eef \u1ea9m sau khi \u0111\u1ed5. Nh\u1eefng l\u1ed7i n\u00e0y l\u00e0m h\u1ecfng c\u1ea3 b\u00ea t\u00f4ng t\u1ed1t nh\u1ea5t. C\u00e1c b\u01b0\u1edbc gi\u1eef \u1ea9m c\u00f3 trong b\u00e0i<\/span> Proper maintenance of concrete<\/a>.<\/span><\/p>\n

    Khi n\u00e0o n\u00ean d\u00f9ng b\u00ea t\u00f4ng t\u01b0\u01a1i, khi n\u00e0o t\u1ef1 tr\u1ed9n?<\/span><\/strong><\/h3>\n\n\n\n\n\n\n\n\n
    Tr\u01b0\u1eddng h\u1ee3p<\/span><\/th>\nN\u00ean d\u00f9ng<\/span><\/th>\nV\u00ec sao<\/span><\/th>\n<\/tr>\n
    \u0110\u1ed5 m\u00f3ng, s\u00e0n, d\u1ea7m c\u1ea7n \u0111\u1ed5 li\u1ec1n m\u1ed9t \u0111\u1ee3t<\/span><\/td>\nB\u00ea t\u00f4ng t\u01b0\u01a1i + b\u01a1m<\/span><\/td>\nC\u1ea5p \u0111\u1ee7 b\u00ea t\u00f4ng li\u00ean t\u1ee5c, tr\u00e1nh m\u1ea1ch ng\u1eebng sai ch\u1ed7<\/span><\/td>\n<\/tr>\n
    Nh\u00e0 trong h\u1ebbm, xe b\u1ed3n l\u1edbn kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c<\/span><\/td>\nB\u00ea t\u00f4ng t\u01b0\u01a1i, xe nh\u1ecf ho\u1eb7c b\u01a1m ngang<\/span><\/td>\nB\u01a1m ngang k\u00e9o \u1ed1ng v\u00e0o s\u00e2u trong h\u1ebbm, l\u00ean cao<\/span><\/td>\n<\/tr>\n
    \u0110\u1ed5 c\u1ed9t, v\u00e1ch, \u0111\u00e0 ki\u1ec1ng kh\u1ed1i l\u01b0\u1ee3ng \u00edt<\/span><\/td>\nB\u00ea t\u00f4ng t\u01b0\u01a1i, gom h\u1ea1ng m\u1ee5c cho m\u1ed9t l\u1ea7n b\u01a1m<\/span><\/td>\nGom l\u1ea1i \u0111\u1ee1 t\u1ed1n l\u1ea7n b\u01a1m<\/span><\/td>\n<\/tr>\n
    V\u00e1, s\u1eeda ch\u1ed7 nh\u1ecf, \u0111\u1ed5 v\u00e0i x\u00f4<\/span><\/td>\nT\u1ef1 tr\u1ed9n<\/span><\/td>\nKh\u1ed1i l\u01b0\u1ee3ng qu\u00e1 nh\u1ecf, kh\u00f4ng \u0111\u00e1ng g\u1ecdi xe<\/span><\/td>\n<\/tr>\n
    Kh\u00f4ng c\u00f3 ch\u1ed7 cho xe b\u1ed3n v\u00e0 xe b\u01a1m \u0111\u1ee9ng<\/span><\/td>\nT\u1ef1 tr\u1ed9n<\/span><\/td>\nKh\u00f4ng \u0111\u01b0a \u0111\u01b0\u1ee3c b\u00ea t\u00f4ng t\u01b0\u01a1i t\u1edbi ch\u1ed7 \u0111\u1ed5<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \"Tr\u1ed9n
    Tr\u1ed9n tay ch\u1ec9 h\u1ee3p v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng nh\u1ecf; ch\u1ea5t l\u01b0\u1ee3ng ph\u1ee5 thu\u1ed9c ng\u01b0\u1eddi \u0111ong v\u00e0 l\u01b0\u1ee3ng n\u01b0\u1edbc<\/span><\/figcaption><\/figure>\n
    \"Tr\u1ed9n
    M\u00e1y tr\u1ed9n t\u1ea1i ch\u1ed7 \u0111\u1ee1 s\u1ee9c ng\u01b0\u1eddi nh\u01b0ng v\u1eabn \u0111ong v\u1eadt li\u1ec7u b\u1eb1ng tay<\/span><\/figcaption><\/figure>\n

    B\u00e0i so s\u00e1nh chi ti\u1ebft chi ph\u00ed, ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 nh\u00e2n c\u00f4ng gi\u1eefa hai c\u00e1ch:<\/span><\/p>\n

    see more<\/span>Ready-mix concrete or site-mixed concrete<\/span><\/span>\u2192<\/span><\/a><\/span><\/p>\n

    6. Gi\u00e1 b\u00ea t\u00f4ng t\u01b0\u01a1i ph\u1ee5 thu\u1ed9c v\u00e0o nh\u1eefng g\u00ec?<\/span><\/strong><\/h2>\n

    Gi\u00e1 b\u00ea t\u00f4ng t\u01b0\u01a1i t\u00ednh theo m\u00b3 v\u00e0 kh\u00e1c nhau theo:<\/span><\/p>\n