{"id":9281,"date":"2025-08-08T11:10:01","date_gmt":"2025-08-08T04:10:01","guid":{"rendered":"https:\/\/dufago.com.vn\/?p=9281"},"modified":"2026-01-06T10:44:15","modified_gmt":"2026-01-06T03:44:15","slug":"huong-dan-xu-ly-khi-be-tong-bi-phan-tang-tach-nuoc-kem-lien-ket","status":"publish","type":"post","link":"https:\/\/dufago.com.vn\/en\/huong-dan-xu-ly-khi-be-tong-bi-phan-tang-tach-nuoc-kem-lien-ket\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn x\u1eed l\u00fd khi b\u00ea t\u00f4ng b\u1ecb ph\u00e2n t\u1ea7ng, t\u00e1ch n\u01b0\u1edbc, k\u00e9m li\u00ean k\u1ebft"},"content":{"rendered":"

Ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t c\u00f4ng tr\u00ecnh \u0111\u01b0\u1ee3c quy\u1ebft \u0111\u1ecbnh b\u1edfi h\u00e0ng ng\u00e0n y\u1ebfu t\u1ed1, nh\u01b0ng ch\u1ec9 m\u1ed9t m\u1ebb b\u00ea t\u00f4ng k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng c\u0169ng \u0111\u1ee7 \u0111\u1ec3 ph\u00e1 h\u1ee7y t\u1ea5t c\u1ea3. M\u1ed9t trong nh\u1eefng ‘k\u1ebb th\u00f9 th\u1ea7m l\u1eb7ng’ \u0111\u00f3 ch\u00ednh l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng b\u00ea t\u00f4ng b\u1ecb ph\u00e2n t\u1ea7ng.<\/span><\/strong><\/p>\n

Hi\u1ec3u r\u00f5 b\u1ea3n ch\u1ea5t, nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch x\u1eed l\u00fd b\u00ea t\u00f4ng ph\u00e2n t\u1ea7ng l\u00e0 k\u1ef9 n\u0103ng b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi m\u1ecdi k\u1ef9 s\u01b0, gi\u00e1m s\u00e1t v\u00e0 nh\u00e0 th\u1ea7u t\u00e2m huy\u1ebft. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd cung c\u1ea5p m\u1ed9t h\u01b0\u1edbng d\u1eabn chi ti\u1ebft t\u1eeb A-Z \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 nh\u1eadn bi\u1ebft, x\u1eed l\u00fd v\u00e0 ph\u00f2ng tr\u00e1nh hi\u1ec7u qu\u1ea3 v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/span><\/strong><\/p>\n

B\u00ea t\u00f4ng b\u1ecb ph\u00e2n t\u1ea7ng v\u00e0 d\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft<\/span><\/strong><\/h2>\n

B\u00ea t\u00f4ng b\u1ecb ph\u00e2n t\u1ea7ng l\u00e0 g\u00ec?<\/span><\/strong><\/h3>\n

B\u00ea t\u00f4ng b\u1ecb ph\u00e2n t\u1ea7ng l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng c\u00e1c th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u trong h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i (\u0111\u00e1, c\u00e1t, xi m\u0103ng, n\u01b0\u1edbc) b\u1ecb t\u00e1ch r\u1eddi nhau do s\u1ef1 ch\u00eanh l\u1ec7ch v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang.<\/span><\/p>\n

N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, c\u00e1c c\u1ed1t li\u1ec7u n\u1eb7ng nh\u01b0 \u0111\u00e1, s\u1ecfi c\u00f3 xu h\u01b0\u1edbng l\u1eafng xu\u1ed1ng \u0111\u00e1y, trong khi h\u1ed3 xi m\u0103ng (h\u1ed7n h\u1ee3p xi m\u0103ng, c\u00e1t m\u1ecbn v\u00e0 n\u01b0\u1edbc) nh\u1eb9 h\u01a1n l\u1ea1i n\u1ed5i l\u00ean tr\u00ean b\u1ec1 m\u1eb7t. S\u1ef1 ph\u00e2n t\u00e1ch n\u00e0y ph\u00e1 v\u1ee1 t\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a b\u00ea t\u00f4ng, t\u1ea1o ra m\u1ed9t k\u1ebft c\u1ea5u kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9, \u0111\u1ed9 \u0111\u1eb7c ch\u1eafc v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c.<\/span><\/p>\n

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D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft b\u00ea t\u00f4ng ph\u00e2n t\u1ea7ng<\/span><\/strong><\/h3>\n

Khi b\u00ea t\u00f4ng c\u00f2n t\u01b0\u01a1i:<\/span><\/strong><\/span><\/p>\n

– T\u00e1ch n\u01b0\u1edbc:<\/strong> M\u1ed9t l\u1edbp n\u01b0\u1edbc m\u00e0u x\u00e1m nh\u1ea1t (m\u00e0u xi m\u0103ng) r\u1ec9 ra v\u00e0 n\u1ed5i l\u00ean b\u1ec1 m\u1eb7t b\u00ea t\u00f4ng ngay sau khi \u0111\u1ed5.<\/span><\/p>\n

– B\u1ec1 m\u1eb7t loang l\u1ed5:<\/strong> B\u1ec1 m\u1eb7t kh\u00f4ng \u0111\u1ec1u, c\u00f3 v\u00f9ng ch\u1ec9 th\u1ea5y v\u1eefa xi m\u0103ng, c\u00f3 v\u00f9ng l\u1ea1i g\u1ed3 l\u00ean to\u00e0n \u0111\u00e1.<\/span><\/p>\n

– H\u1ed7n h\u1ee3p r\u1eddi r\u1ea1c:<\/strong> Khi x\u1ea3 b\u00ea t\u00f4ng, nghe r\u00f5 ti\u1ebfng \u0111\u00e1 s\u1ecfi r\u01a1i ri\u00eang r\u1ebd.<\/span><\/p>\n

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Khi b\u00ea t\u00f4ng \u0111\u00e3 \u0111\u00f3ng r\u1eafn (sau khi th\u00e1o c\u1ed1p pha):<\/span><\/strong><\/span><\/p>\n

– R\u1ed7 t\u1ed5 ong (Honeycombing):<\/strong> \u0110\u00e2y l\u00e0 d\u1ea5u hi\u1ec7u r\u00f5 r\u00e0ng nh\u1ea5t. B\u1ec1 m\u1eb7t b\u00ea t\u00f4ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 ch\u00e2n c\u1ed9t, d\u1ea7m, t\u01b0\u1eddng, xu\u1ea5t hi\u1ec7n c\u00e1c h\u1ed1c r\u1ed7 s\u00e2u, tr\u01a1 c\u1ed1t li\u1ec7u \u0111\u00e1 ra ngo\u00e0i.<\/span><\/p>\n

– C\u01b0\u1eddng \u0111\u1ed9 kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u:<\/strong> D\u00f9ng b\u00faa chuy\u00ean d\u1ee5ng g\u00f5 v\u00e0o b\u1ec1 m\u1eb7t, c\u00f3 ch\u1ed7 nghe ti\u1ebfng \u0111\u1eb7c ch\u1eafc, c\u00f3 ch\u1ed7 l\u1ea1i nghe ti\u1ebfng b\u1ed9p b\u1ed9p, r\u1ed7ng.<\/span><\/p>\n

– M\u1eabu th\u1eed n\u00e9n kh\u00f4ng \u0111\u1ea1t:<\/strong> K\u1ebft qu\u1ea3 \u00e9p m\u1eabu th\u1eed cho th\u1ea5y c\u01b0\u1eddng \u0111\u1ed9 th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi m\u00e1c thi\u1ebft k\u1ebf.<\/span><\/p>\n

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See more:<\/span> \u0110\u1ed9 s\u1ee5t b\u00ea t\u00f4ng bao nhi\u00eau l\u00e0 \u0111\u1ea1t? B\u1ea3ng tra v\u00e0 quy tr\u00ecnh h\u01b0\u1edbng d\u1eabn l\u1ea5y s\u1ee5t<\/a><\/span><\/strong><\/span><\/p>\n

Nguy\u00ean nh\u00e2n c\u1ed1t l\u00f5i khi\u1ebfn b\u00ea t\u00f4ng b\u1ecb ph\u00e2n t\u1ea7ng<\/span><\/strong><\/h2>\n

– C\u1ea5p ph\u1ed1i & v\u1eadt li\u1ec7u:<\/strong> T\u1ef7 l\u1ec7 n\u01b0\u1edbc\/xi-m\u0103ng cao, c\u1ed1t li\u1ec7u kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t k\u00edch c\u1ee1, thi\u1ebfu h\u1ea1t m\u1ecbn \u2192 gi\u1ea3m ma s\u00e1t gi\u1eefa h\u1ea1t, h\u1ed3 xi-m\u0103ng kh\u00f4ng \u0111\u1ee7 bao ph\u1ee7 c\u1ed1t li\u1ec7u.<\/span><\/p>\n

– Tr\u1ed9n \u2013 v\u1eadn chuy\u1ec3n:<\/strong> Th\u1eddi gian tr\u1ed9n kh\u00f4ng \u0111\u1ee7\/qu\u00e1 l\u00e2u; va \u0111\u1eadp, rung l\u1eafc m\u1ea1nh tr\u00ean xe b\u1ed3n; ch\u1edd \u0111\u1ed5 qu\u00e1 l\u00e2u l\u00e0m m\u1ea5t \u0111\u1ed9 d\u1ebbo.<\/span><\/p>\n

– \u0110\u1ed5 & \u0111\u1ea7m:<\/strong> \u0110\u1ed5 t\u1eeb \u0111\u1ed9 cao > 1,5 m ho\u1eb7c \u0111\u1ea7m rung qu\u00e1 m\u1ee9c khi\u1ebfn \u0111\u00e1 l\u1eafng, h\u1ed3 n\u1ed5i l\u00ean.\u00a0<\/span><\/p>\n

– \u0110i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng:<\/strong> Nhi\u1ec7t \u0111\u1ed9 cao, gi\u00f3 kh\u00f4 l\u00e0m n\u01b0\u1edbc b\u1ed1c h\u01a1i nhanh \u2192 t\u0103ng t\u00e1ch n\u01b0\u1edbc, gi\u1ea3m li\u00ean k\u1ebft.\u00a0<\/span><\/p>\n

Quy tr\u00ecnh x\u1eed l\u00fd b\u00ea t\u00f4ng b\u1ecb ph\u00e2n t\u1ea7ng<\/span><\/strong><\/h2>\n

T\u00f9y v\u00e0o m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng v\u00e0 t\u00ecnh tr\u1ea1ng c\u1ee7a b\u00ea t\u00f4ng (c\u00f2n t\u01b0\u01a1i hay \u0111\u00e3 \u0111\u00f3ng r\u1eafn), ch\u00fang ta s\u1ebd c\u00f3 quy tr\u00ecnh x\u1eed l\u00fd kh\u00e1c nhau.<\/span><\/p>\n

1. \u0110\u1ed1i v\u1edbi b\u00ea t\u00f4ng c\u00f2n t\u01b0\u01a1i (v\u1eeba m\u1edbi ph\u00e1t hi\u1ec7n)<\/span><\/strong><\/h3>\n

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Khi ph\u00e1t hi\u1ec7n d\u1ea5u hi\u1ec7u t\u00e1ch n\u01b0\u1edbc ho\u1eb7c ph\u00e2n t\u1ea7ng ngay l\u00fac \u0111ang thi c\u00f4ng, h\u00e3y t\u1ea1m ng\u01b0ng v\u00e0 x\u1eed l\u00fd ngay:<\/span><\/p>\n

Tr\u1ed9n l\u1ea1i (n\u1ebfu c\u00f3 th\u1ec3): D\u00f9ng x\u1ebbng ho\u1eb7c d\u1ee5ng c\u1ee5 ph\u00f9 h\u1ee3p tr\u1ed9n l\u1ea1i nh\u1eb9 nh\u00e0ng \u0111\u1ec3 ph\u00e2n b\u1ed1 l\u1ea1i c\u1ed1t li\u1ec7u.<\/span><\/p>\n

\u0110i\u1ec1u ch\u1ec9nh k\u1ef9 thu\u1eadt \u0111\u1ea7m: \u0110\u1ea7m v\u1edbi th\u1eddi gian ng\u1eafn h\u01a1n, di chuy\u1ec3n d\u00f9i \u0111\u1ea7m \u0111\u1ec1u v\u00e0 nhanh h\u01a1n \u0111\u1ec3 tr\u00e1nh rung \u0111\u1ed9ng qu\u00e1 m\u1ee9c t\u1ea1i m\u1ed9t v\u1ecb tr\u00ed.<\/span><\/p>\n

2. \u0110\u1ed1i v\u1edbi b\u00ea t\u00f4ng \u0111\u00e3 \u0111\u00f3ng r\u1eafng (b\u1ec1 m\u1eb7t r\u1ed7 nh\u1eb9 v\u00e0 trung b\u00ecnh)<\/span><\/strong><\/span><\/h3>\n

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\u0110\u00e2y l\u00e0 tr\u01b0\u1eddng h\u1ee3p ph\u1ed5 bi\u1ebfn nh\u1ea5t. Quy tr\u00ecnh s\u1eeda ch\u1eefa bao g\u1ed3m c\u00e1c b\u01b0\u1edbc:<\/span><\/p>\n

Step 1:<\/strong> Chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t: D\u00f9ng b\u00faa, \u0111\u1ee5c ho\u1eb7c m\u00e1y m\u00e0i \u0111\u1ec3 \u0111\u1ee5c b\u1ecf to\u00e0n b\u1ed9 ph\u1ea7n b\u00ea t\u00f4ng y\u1ebfu, r\u1ed7, kh\u00f4ng \u0111\u1eb7c ch\u1eafc cho \u0111\u1ebfn khi g\u1eb7p l\u1edbp b\u00ea t\u00f4ng t\u1ed1t. V\u1ec7 sinh s\u1ea1ch b\u1ee5i b\u1ea9n b\u1eb1ng m\u00e1y th\u1ed5i ho\u1eb7c b\u00e0n ch\u1ea3i s\u1eaft.<\/span><\/p>\n

B\u01b0\u1edbc 2:<\/strong> B\u00e3o h\u00f2a n\u01b0\u1edbc: L\u00e0m \u1ea9m b\u1ec1 m\u1eb7t khu v\u1ef1c c\u1ea7n s\u1eeda ch\u1eefa cho \u0111\u1ebfn khi b\u00e3o h\u00f2a n\u01b0\u1edbc (nh\u01b0ng kh\u00f4ng \u0111\u1ec3 \u0111\u1ecdng n\u01b0\u1edbc) \u0111\u1ec3 tr\u00e1nh l\u1edbp b\u00ea t\u00f4ng c\u0169 h\u00fat n\u01b0\u1edbc t\u1eeb v\u1eefa s\u1eeda ch\u1eefa.<\/span><\/p>\n

Step 3:<\/strong> Thi c\u00f4ng l\u1edbp s\u1eeda ch\u1eefa: S\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i v\u1eefa s\u1eeda ch\u1eefa kh\u00f4ng co ng\u00f3t c\u01b0\u1eddng \u0111\u1ed9 cao chuy\u00ean d\u1ee5ng. Tr\u00e1t v\u1eefa l\u00ean khu v\u1ef1c \u0111\u00e3 chu\u1ea9n b\u1ecb, \u0111\u1ea3m b\u1ea3o v\u1eefa \u0111\u01b0\u1ee3c l\u00e8n ch\u1eb7t v\u00e0o m\u1ecdi khe k\u1ebd. N\u1ebfu l\u1ed7 r\u1ed7 qu\u00e1 s\u00e2u, c\u00f3 th\u1ec3 ph\u1ea3i thi c\u00f4ng nhi\u1ec1u l\u1edbp.<\/span><\/p>\n

B\u01b0\u1edbc 4:<\/strong> B\u1ea3o d\u01b0\u1ee1ng: B\u1ea3o d\u01b0\u1ee1ng \u1ea9m khu v\u1ef1c v\u1eeba s\u1eeda ch\u1eefa t\u01b0\u01a1ng t\u1ef1 nh\u01b0 b\u1ea3o d\u01b0\u1ee1ng b\u00ea t\u00f4ng th\u00f4ng th\u01b0\u1eddng \u0111\u1ec3 v\u1eadt li\u1ec7u \u0111\u1ea1t c\u01b0\u1eddng \u0111\u1ed9 t\u1ed1t nh\u1ea5t v\u00e0 tr\u00e1nh n\u1ee9t n\u1ebb.<\/span><\/p>\n

See more:<\/span> L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 tr\u00e1nh c\u00e1c v\u1ebft n\u1ee9t khi \u0111\u1ed5 b\u00ea t\u00f4ng<\/a><\/span><\/strong><\/p>\n

3. \u0110\u1ed1i v\u1edbi h\u01b0 h\u1ecfng n\u1eb7ng, \u1ea3nh h\u01b0\u1edfng k\u1ebft c\u1ea5u<\/span><\/strong><\/span><\/h3>\n

N\u1ebfu t\u00ecnh tr\u1ea1ng r\u1ed7 s\u00e2u, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c c\u1ee7a c\u1ea5u ki\u1ec7n, tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng t\u1ef1 \u00fd x\u1eed l\u00fd. C\u1ea7n ph\u1ea3i li\u00ean h\u1ec7 ngay v\u1edbi k\u1ef9 s\u01b0 k\u1ebft c\u1ea5u ho\u1eb7c \u0111\u01a1n v\u1ecb t\u01b0 v\u1ea5n c\u00f3 chuy\u00ean m\u00f4n \u0111\u1ec3 kh\u1ea3o s\u00e1t, \u0111\u00e1nh gi\u00e1 v\u00e0 \u0111\u01b0a ra ph\u01b0\u01a1ng \u00e1n gia c\u1ed1 ph\u00f9 h\u1ee3p (v\u00ed d\u1ee5: b\u01a1m epoxy, gia c\u01b0\u1eddng b\u1eb1ng s\u1ee3i carbon – CFRP, ho\u1eb7c th\u1eadm ch\u00ed l\u00e0 \u0111\u1eadp b\u1ecf v\u00e0 l\u00e0m l\u1ea1i).<\/span><\/p>\n

Bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u00e1nh ph\u00e2n t\u1ea7ng b\u00ea t\u00f4ng<\/span><\/strong><\/h2>\n

“Ph\u00f2ng b\u1ec7nh h\u01a1n ch\u1eefa b\u1ec7nh”. \u0110\u1ec3 tr\u00e1nh l\u1eb7p l\u1ea1i sai l\u1ea7m, h\u00e3y tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t c\u00e1c bi\u1ec7n ph\u00e1p sau:<\/span><\/p>\n

Ki\u1ec3m so\u00e1t c\u1ea5p ph\u1ed1i: \u0110\u1ea3m b\u1ea3o c\u1ea5p ph\u1ed1i b\u00ea t\u00f4ng \u0111\u00fang thi\u1ebft k\u1ebf, t\u1ef7 l\u1ec7 N\u01b0\u1edbc\/Xi m\u0103ng \u1edf m\u1ee9c t\u1ed1i \u01b0u. S\u1eed d\u1ee5ng c\u1ed1t li\u1ec7u c\u00f3 th\u00e0nh ph\u1ea7n h\u1ea1t li\u00ean t\u1ee5c, s\u1ea1ch.<\/span><\/p>\n

T\u1ed1i \u01b0u h\u00f3a thi c\u00f4ng: Kh\u00f4ng \u0111\u1ed5 b\u00ea t\u00f4ng t\u1eeb \u0111\u1ed9 cao qu\u00e1 1.5m. \u0110\u1ea7m d\u00f9i \u0111\u00fang k\u1ef9 thu\u1eadt, \u0111\u1ee7 th\u1eddi gian. H\u1ea1n ch\u1ebf rung l\u1eafc m\u1ea1nh khi v\u1eadn chuy\u1ec3n.<\/span><\/p>\n

S\u1eed d\u1ee5ng ph\u1ee5 gia: Ch\u1ee7 \u0111\u1ed9ng s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i ph\u1ee5 gia h\u00f3a h\u1ecdc ph\u00f9 h\u1ee3p nh\u01b0 ph\u1ee5 gia gi\u1ea3m n\u01b0\u1edbc, ph\u1ee5 gia si\u00eau d\u1ebbo k\u1ebft h\u1ee3p t\u00ednh n\u0103ng \u1ed5n \u0111\u1ecbnh, ho\u1eb7c ph\u1ee5 gia ch\u1ed1ng ph\u00e2n t\u1ea7ng chuy\u00ean d\u1ee5ng \u0111\u1ec3 t\u0103ng \u0111\u1ed9 nh\u1edbt v\u00e0 t\u00ednh li\u00ean k\u1ebft cho h\u1ed7n h\u1ee3p.<\/span><\/p>\n

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FAQ (C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p)<\/span><\/strong><\/h2>\n

1. Ph\u00e2n t\u1ea7ng b\u00ea t\u00f4ng c\u00f3 s\u1eeda \u0111\u01b0\u1ee3c kh\u00f4ng?<\/span><\/strong><\/p>\n

C\u00f3. T\u00f9y v\u00e0o m\u1ee9c \u0111\u1ed9. C\u00e1c v\u1ebft r\u1ed7 b\u1ec1 m\u1eb7t kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u1ebft c\u1ea5u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa b\u1eb1ng v\u1eefa chuy\u00ean d\u1ee5ng. Tuy nhi\u00ean, n\u1ebfu ph\u00e2n t\u1ea7ng nghi\u00eam tr\u1ecdng l\u00e0m suy gi\u1ea3m kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c, vi\u1ec7c s\u1eeda ch\u1eefa s\u1ebd ph\u1ee9c t\u1ea1p, t\u1ed1n k\u00e9m v\u00e0 c\u1ea7n c\u00f3 s\u1ef1 can thi\u1ec7p c\u1ee7a chuy\u00ean gia k\u1ebft c\u1ea5u.<\/span><\/p>\n

2. Nh\u1eadn bi\u1ebft s\u1edbm t\u00e1ch n\u01b0\u1edbc b\u1eb1ng c\u00e1ch n\u00e0o?<\/span><\/strong><\/p>\n

Ngay sau khi \u0111\u1ed5 v\u00e0 g\u1ea1t m\u1eb7t b\u00ea t\u00f4ng kho\u1ea3ng 15-30 ph\u00fat, h\u00e3y quan s\u00e1t b\u1ec1 m\u1eb7t. N\u1ebfu th\u1ea5y m\u1ed9t l\u1edbp n\u01b0\u1edbc m\u1ecfng m\u00e0u x\u00e1m xi m\u0103ng b\u1eaft \u0111\u1ea7u r\u1ec9 ra v\u00e0 lan r\u1ed9ng, \u0111\u00f3 ch\u00ednh l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng t\u00e1ch n\u01b0\u1edbc. L\u01b0\u1ee3ng n\u01b0\u1edbc c\u00e0ng nhi\u1ec1u v\u00e0 xu\u1ea5t hi\u1ec7n c\u00e0ng nhanh th\u00ec nguy c\u01a1 ph\u00e2n t\u1ea7ng c\u00e0ng cao.<\/span><\/p>\n

3. Chi ph\u00ed s\u1eeda ch\u1eefa t\u00ednh ra sao?<\/span><\/strong><\/p>\n

Chi ph\u00ed s\u1eeda ch\u1eefa ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1:<\/span><\/p>\n

– M\u1ee9c \u0111\u1ed9 h\u01b0 h\u1ecfng: Di\u1ec7n t\u00edch (m\u00b2) v\u00e0 chi\u1ec1u s\u00e2u c\u1ee7a v\u00f9ng b\u00ea t\u00f4ng c\u1ea7n s\u1eeda.<\/span><\/p>\n

– Lo\u1ea1i v\u1eadt li\u1ec7u s\u1eed d\u1ee5ng: V\u1eefa s\u1eeda ch\u1eefa th\u00f4ng th\u01b0\u1eddng hay c\u00e1c lo\u1ea1i v\u1eefa polymer, v\u1eefa epoxy c\u01b0\u1eddng \u0111\u1ed9 cao s\u1ebd c\u00f3 gi\u00e1 kh\u00e1c nhau.<\/span><\/p>\n

– Chi ph\u00ed nh\u00e2n c\u00f4ng v\u00e0 thi\u1ebft b\u1ecb \u0111\u1ec3 \u0111\u1ee5c \u0111\u1ebdo, v\u1ec7 sinh v\u00e0 thi c\u00f4ng. Nh\u00ecn chung, chi ph\u00ed s\u1eeda ch\u1eefa lu\u00f4n cao h\u01a1n nhi\u1ec1u so v\u1edbi chi ph\u00ed ph\u00f2ng ng\u1eeba ngay t\u1eeb \u0111\u1ea7u.<\/span><\/p>\n

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Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng th\u00f4ng tin v\u1ec1 vi\u1ec7c x\u1eed l\u00fd b\u00ea t\u00f4ng b\u1ecb ph\u00e2n t\u1ea7ng, hy v\u1ecdng s\u1ebd cung c\u1ea5p nh\u1eefng ki\u1ebfn th\u1ee9c h\u1eefu \u00edch cho b\u1ea1n. Theo d\u00f5i trang web c\u1ee7a automatically<\/a><\/strong> \u0111\u1ec3 c\u1eadp nhi\u1ec1u h\u01a1n n\u1eefa nh\u1eefng th\u00f4ng tin v\u1ec1 b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m.<\/span><\/p>\n

See more: 5 C\u00e1ch t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng b\u00ea t\u00f4ng t\u01b0\u01a1i c\u1ea7n d\u00f9ng cho c\u00f4ng tr\u00ecnh<\/a><\/span><\/strong><\/p>\n