{"id":102,"date":"2018-02-01T14:33:29","date_gmt":"2018-02-01T14:33:29","guid":{"rendered":"https:\/\/websitedemos.net\/teach\/?p=102"},"modified":"2020-01-15T03:09:52","modified_gmt":"2020-01-15T03:09:52","slug":"do-cung-be-tong","status":"publish","type":"post","link":"https:\/\/betongtayninh.com\/index.php\/2018\/02\/01\/do-cung-be-tong\/","title":{"rendered":"\u0110\u1ed9 c\u1ee9ng b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n
<\/div>\n\n\n\n

\u0110\u1ed9 c\u1ee9ng b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m l\u00e0 g\u00ec?<\/h3>\n\n\n\n

\u0110\u1ecbnh ngh\u0129a:\u00a0<\/h4>\n\n\n\n

\u00a0\u0110\u1ed9 c\u1ee9ng c\u1ee7a b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m hay c\u00f2n g\u1ecdi l\u00e0 t\u00ednh c\u00f4ng t\u00e1c hay t\u00ednh d\u1ec5 \u0111\u1ed5 c\u1ee7a b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m. \u00a0<\/p>\n\n\n\n

T\u00ednh d\u1ec5 \u0111\u1ed5 th\u1ef1c t\u1ebf sinh ra t\u1eeb vi\u1ec7c t\u1ed5ng h\u1ee3p 2 y\u1ebfu t\u1ed1 sau: <\/p>\n\n\n\n

  • Y\u1ebfu t\u1ed1 \u0111\u1ed9ng h\u1ecdc:\u0111\u00f3 l\u00e0 \u0111\u1ed9 ch\u00e1y ho\u1eb7c kh\u1ea3 n\u0103ng bi\u1ebfn d\u1ea1ng d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n \u0111\u1ea7m l\u00e0m cho \u0111\u1ea7y khu\u00f4n d\u1ec5 d\u00e0ng v\u00e0 nhanh. <\/li>
  • Y\u1ebfu t\u1ed1 t\u0129nh h\u1ecdc : s\u1ef1 \u1ed5n \u0111\u1ecbnh ho\u1eb7c kh\u1ea3 n\u0103ng gi\u1eef \u0111\u01b0\u1ee3c s\u1ef1 \u0111\u1ed3ng nh\u1ea5t (kh\u00f4ng c\u00f3 s\u1ef1 ph\u00e2n t\u1ea7ng l\u1eafng \u0111\u1ecdng).      <\/li><\/ul>\n\n\n\n

    Trong tr\u01b0\u1eddng h\u1ee3p th\u00e1o khu\u00f4n tr\u01b0\u1edbc \u0111\u00f4ng k\u1ebft ng\u01b0\u1eddi ta c\u00f2n mong mu\u1ed1n gi\u1eef \u0111\u01b0\u1ee3c h\u00ecnh d\u1ea1ng. V\u00ec 2 y\u1ebfu t\u1ed1 \u0111\u00f3, \u0111\u1ed9 ch\u1ea3y v\u00e0 s\u1ef1 \u1ed5n \u0111\u1ecbnh lu\u00f4n lu\u00f4n bi\u1ebfn thi\u00ean theo chi\u1ec1u h\u01b0\u1edbng ng\u01b0\u1ee3c nhau,vi\u1ec7c mong mu\u1ed1n \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u00ednh d\u1ec5 \u0111\u1ed5 t\u1ed1t h\u01a1n d\u1eabn t\u1edbi t\u00ecm ra \u0111\u01b0\u1ee3c m\u1ed9t s\u1ef1 th\u1ecfa hi\u1ec7p, b\u1eb1ng c\u00e1ch xem x\u00e9t t\u00ednh \u0111\u1ebfn c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n thi c\u00f4ng(v\u00ed d\u1ee5:ch\u1ea5n \u0111\u1ed9ng m\u1ea1nh hay y\u1ebfu). <\/p>\n\n\n\n

    T\u00ednh d\u1ec5 \u0111\u1ed5 t\u1ed1i \u01b0u l\u00e0 ph\u01b0\u01a1ng ti\u1ec7n t\u1ed1t h\u01a1n \u0111\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c \u0111\u1ed9 \u0111\u1eb7c ch\u1eafc cao,y\u1ebfu t\u1ed1 d\u1eabn \u0111\u1ebfn c\u01b0\u1eddng \u0111\u1ed9 \u0111\u1ea3m b\u1ea3o. S\u1ef1 nghi\u00ean c\u1ee9u t\u00ednh l\u01b0u bi\u1ebfn c\u1ee7a b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m \u0111\u00e3 cho ph\u00e9p x\u00e1c \u0111\u1ecbnh t\u00ednh d\u1ec5 \u0111\u1ed5 v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 m\u00e0 n\u00f3 ph\u1ee5 thu\u1ed9c. \u0110\u1ed3ng th\u1eddi cho ph\u00e9p \u0111\u00e1nh gi\u00e1 v\u00e0 t\u00ecm ki\u1ebfm \u0111\u01b0\u1ee3c c\u00e1c bi\u1ec7n ph\u00e1p \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh d\u1ec5 \u0111\u1ed5. <\/p>\n\n\n\n

    C\u00e1c nh\u00e2n t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 c\u1ee9ng c\u1ee7a h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i.<\/h3>\n\n\n\n
    1.  H\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc: <\/strong>C\u00f3 \u1ea3nh h\u01b0\u1edfng r\u00f5 r\u1ebft nh\u1ea5t t\u1edbi t\u00ednh c\u00f4ng t\u00e1c c\u1ee7a b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m. H\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc tr\u00ean 1 m\u00e9t kh\u1ed1i b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m t\u0103ng th\u00ec b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m c\u00e0ng d\u1ebbo. H\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc l\u00e0 y\u1ebfu t\u1ed1 v\u00f4 c\u00f9ng quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh c\u00f4ng t\u00e1c c\u1ee7a b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m. T\u1ea1i c\u00f4ng tr\u01b0\u1eddng,ng\u01b0\u1eddi ta ch\u1ec9 \u0111\u1ea1o thi c\u00f4ng n\u1ebfu kh\u00f4ng gi\u1ecfi th\u00ec ch\u1ec9 c\u00f3 c\u00e1ch l\u00e0 t\u0103ng l\u01b0\u1ee3ng n\u01b0\u1edbc \u0111\u1ec3 t\u0103ng t\u00ednh c\u00f4ng t\u00e1c.  Th\u1ef1c t\u1ebf c\u0169ng th\u01b0\u1eddng th\u1ea5y d\u00f9ng c\u00e1ch n\u00e0y b\u1edfi v\u00ec \u0111\u00e2y l\u00e0 c\u00e1ch d\u1ec5 nh\u1ea5t c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n t\u1ea1i c\u00f4ng tr\u01b0\u1eddng. Vi\u1ec7c t\u0103ng l\u01b0\u1ee3ng n\u01b0\u1edbc l\u00e0 bi\u1ec7n ph\u00e1p cu\u1ed1i c\u00f9ng \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh c\u00f4ng t\u00e1c c\u1ee7a b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m \u0111\u1ec3 thi c\u00f4ng \u0111\u01b0\u1ee3c b\u00ea t\u00f4ng t\u01b0\u01a1i th\u00ec kh\u00f4ng th\u1ec3 t\u0103ng l\u01b0\u1ee3ng n\u01b0\u1edbc m\u1ed9t c\u00e1ch t\u00f9y ti\u1ec7n. C\u00e0ng t\u0103ng nhi\u1ec1u l\u01b0\u1ee3ng n\u01b0\u1edbc th\u00ec c\u00e0ng ph\u1ea3i t\u0103ng nhi\u1ec1u l\u01b0\u1ee3ng xi m\u0103ng \u0111\u1ec3 gi\u1eef cho t\u1ef7 s\u1ed1 n\u01b0\u1edbc\/xi m\u0103ng kh\u00f4ng \u0111\u1ed5i, do v\u1eady m\u1edbi gi\u1eef nguy\u00ean \u0111\u01b0\u1ee3c c\u01b0\u1eddng \u0111\u1ed9 b\u00ea t\u00f4ng. T\u1ef7 l\u1ec7 th\u00e0nh ph\u1ea7n h\u1ed7n h\u1ee3p : t\u1ef7 s\u1ed1 c\u1ed1t li\u1ec7u\/xi m\u0103ng c\u0169ng l\u00e0 m\u1ed9t nh\u00e2n t\u1ed1 quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh c\u00f4ng t\u00e1c. T\u1ef7 s\u1ed1 n\u00e0y c\u00e0ng t\u0103ng b\u00ea t\u00f4ng t\u01b0\u01a1i c\u00e0ng kh\u00f4 c\u1ee9ng. Trong tr\u01b0\u1eddng h\u1ee3p h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m c\u1ee9ng, c\u00f3 r\u1ea5t \u00edt v\u1eefa xi m\u0103ng tr\u00ean m\u1ed9t \u0111\u01a1n v\u1ecb di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u1ed1t li\u1ec7u \u0111\u1ec3 l\u00e0m t\u0103ng t\u00ednh b\u00f4i tr\u01a1n do v\u1eady l\u00e0m t\u0103ng s\u1ef1 linh \u0111\u1ed9ng c\u1ee7a c\u00e1c h\u1ea1t c\u1ed1t li\u1ec7u .M\u1eb7t kh\u00e1c, m\u1ed9t lo\u1ea1i b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m \u0111\u1eb7c v\u1edbi t\u1ef7 l\u1ec7 c\u1ed1t li\u1ec7u\/xi m\u0103ng th\u1ea5p, nhi\u1ec1u v\u1eefa xi m\u0103ng b\u00e1m d\u00ednh xung quanh c\u00e1c h\u1ea1t c\u1ed1t li\u1ec7u v\u00e0 l\u00e0m t\u0103ng t\u00ednh c\u00f4ng t\u00e1c. K\u00edch th\u01b0\u1edbc c\u1ee7a c\u1ed1t li\u1ec7u: c\u1ed1t li\u1ec7u c\u00e0ng to, th\u00ec di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u00e0ng gi\u1ea3m d\u1eabn \u0111\u1ebfn l\u01b0\u1ee3ng n\u01b0\u1edbc c\u1ea7n thi\u1ebft \u0111\u1ec3 l\u00e0m \u01b0\u1edbt b\u1ec1 m\u1eb7t gi\u1ea3m v\u00e0 l\u01b0\u1ee3ng v\u1eefa y\u00eau c\u1ea7u \u0111\u1ec3 b\u00f4i tr\u01a1n b\u1ec1 m\u1eb7t c\u1ed1t li\u1ec7u c\u0169ng gi\u1ea3m. V\u1edbi c\u00f9ng m\u1ed9t l\u01b0\u1ee3ng n\u01b0\u1edbc v\u00e0 v\u1eefa n\u1ebfu c\u1ed1t li\u1ec7u c\u00e0ng l\u1edbn th\u00ec t\u00ednh c\u00f4ng t\u00e1c c\u00e0ng t\u0103ng. H\u00ecnh d\u1ea1ng c\u1ed1t li\u1ec7u: c\u0169ng l\u00e0 1 nh\u00e2n t\u1ed1 \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u \u0111\u1ebfn t\u00ednh c\u00f4ng t\u00e1c. Ng\u01b0\u1eddi ta d\u00f9ng n\u00f3 nh\u01b0 1 c\u00e1ch \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh t\u00ednh c\u00f4ng t\u00e1c. C\u1ed1t li\u1ec7u c\u00f3 h\u00ecnh d\u1ea1ng g\u00f3c c\u1ea1nh l\u00e0m cho b\u00ea t\u00f4ng t\u01b0\u01a1i kh\u00f3 nh\u00e0o tr\u1ed9n, c\u1ed1t li\u1ec7u tr\u00f2n th\u00ec b\u00ea t\u00f4ng d\u1ebbo h\u01a1n. C\u00f9ng 1 \u0111\u01a1n v\u1ecb th\u1ec3 t\u00edch ho\u1eb7c kh\u1ed1i l\u01b0\u1ee3ng b\u00ea t\u00f4ng t\u01b0\u01a1i c\u1ed1t li\u1ec7u tr\u00f2n s\u1ebd c\u00f3 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t nh\u1ecf h\u01a1n, l\u1ef1c ma s\u00e1t gi\u1eefa c\u00e1c ph\u1ea7n t\u1eed c\u0169ng nh\u1ecf h\u01a1n. \u0110i\u1ec1u n\u00e0y gi\u1ea3i th\u00edch v\u00ec sao c\u00e1t s\u00f4ng v\u00e0 s\u1ecfi l\u00e0m t\u0103ng t\u00ednh c\u00f4ng t\u00e1c c\u1ee7a b\u00ea t\u00f4ng t\u01b0\u01a1i h\u01a1n \u0111\u00e1 d\u0103m. B\u1ec1 m\u1eb7t h\u1ea1t c\u1ed1t li\u1ec7u: \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh c\u00f4ng t\u00e1c l\u00e0 do t\u1ed5ng di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u1ee7a c\u1ed1t li\u1ec7u th\u00f4 r\u00e1p l\u1edbn h\u01a1n t\u1ed5ng di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u1ed1t li\u1ec7u tr\u01a1n nh\u1eb5n \u0111\u1ed1i v\u1edbi c\u00f9ng 1 th\u1ec3 t\u00edch. C\u1ed1t li\u1ec7u c\u00f3 b\u1ec1 m\u1eb7t th\u00f4 r\u00e1p s\u1ebd l\u00e0m cho b\u00ea t\u00f4ng t\u01b0\u01a1i c\u00f3 t\u00ednh c\u00f4ng t\u00e1c th\u1ea5p h\u01a1n so v\u1edbi c\u1ed1t li\u1ec7u tr\u01a1n nh\u1eb5n .L\u1ef1c ma s\u00e1t gi\u1eefa c\u1ed1t li\u1ec7u tr\u01a1n nh\u1eb5n c\u0169ng th\u1ea5p h\u01a1n l\u00e0m t\u0103ng t\u00ednh c\u00f4ng t\u00e1c. C\u1ea5p ph\u1ed1i h\u1ea1t : \u0111\u00e2y l\u00e0 nh\u00e2n t\u1ed1 \u1ea3nh h\u01b0\u1edfng l\u1edbn nh\u1ea5t \u0111\u1ebfn t\u00ednh c\u00f4ng t\u00e1c. C\u1ea5p ph\u1ed1i t\u1ed1t s\u1ebd c\u00f3 t\u1ed5ng l\u1ed7 r\u1ed7ng tr\u00ean m\u1ed9t \u0111\u01a1n v\u1ecb th\u1ec3 t\u00edch l\u00e0 th\u1ea5p nh\u1ea5t. Nh\u1eefng nh\u00e2n t\u1ed1 kh\u00e1c kh\u00f4ng \u0111\u1ed5i, khi t\u1ed5ng l\u1ed7 r\u1ed7ng nh\u1ecf l\u01b0\u1ee3ng v\u1eefa th\u1eeba ra c\u00f3 th\u1ec3 l\u00e0m t\u0103ng t\u00ednh b\u00f4i tr\u01a1n. V\u1edbi m\u1ed9t l\u01b0\u1ee3ng v\u1eefa th\u1eeba ra, h\u1ed7n h\u1ee3p tr\u1edf n\u00ean d\u00ednh v\u00e0 \u0111\u1ea9y xa c\u00e1c h\u1ea1t c\u1ed1t li\u1ec7u ra. C\u1ed1t li\u1ec7u s\u1ebd tr\u01b0\u1ee3t tr\u00ean nhau v\u1edbi m\u1ed9t c\u00f4ng \u0111\u1ea7m n\u00e9n \u00edt nh\u1ea5t.C\u1ea5p ph\u1ed1i h\u1ea1t c\u00e0ng h\u1ee3p l\u00ed th\u00ec t\u1ed5ng l\u1ed7 r\u1ed7ng c\u00e0ng nh\u1ecf v\u00e0 c\u00e0ng l\u00e0m t\u0103ng t\u00ednh c\u00f4ng t\u00e1c. S\u1eed d\u1ee5ng ph\u1ee5 gia: \u0111\u00e2y l\u00e0 nh\u00e2n t\u1ed1 quan tr\u1ecdng nh\u1ea5t. S\u1eed d\u1ee5ng ph\u1ea1 gia \u0111\u00fang c\u00e1ch \u0111\u00fang l\u01b0\u1ee3ng s\u1ebd l\u00e0m t\u0103ng t\u00ednh c\u00f4ng t\u00e1c c\u1ee7a h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m \u0111\u1ed3ng th\u1eddi l\u00e0m gi\u1ea3m chi ph\u00ed, t\u00ednh kinh t\u1ebf cao. S\u1ef1 ph\u1ee5 thu\u1ed9c c\u1ee7a \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c nhau :<\/li>
    2.  C\u00e1c t\u00ednh ch\u1ea5t c\u00f4ng ngh\u1ec7<\/strong>: X\u00e1c \u0111\u1ecbnh b\u1eb1ng th\u00e0nh ph\u1ea7n v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t c\u1ee7a nguy\u00ean li\u1ec7u s\u1eed d\u1ee5ng. T\u00ednh k\u1ebft d\u00ednh ( kh\u1ea3 n\u0103ng t\u1ef1 ch\u1ea3y ho\u1eb7c l\u1ea5p \u0111\u1ea7y khu\u00f4n) c\u1ee7a h\u1ed1n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o nh\u1edd h\u1ed3 xi m\u0103ng. H\u00e0m l\u01b0\u1ee3ng h\u1ed3 xi m\u0103ng c\u00e0ng l\u1edbn, \u0111\u1ed9 s\u1ec7t c\u1ee7a ch\u00fang c\u00e0ng l\u1ecfng h\u01a1n, \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m c\u00e0ng l\u1edbn. Khi \u0111\u01b0a c\u1ed1t li\u1ec7u v\u00e0o h\u1ed3 xi m\u0103ng l\u00e0m gi\u1ea3m \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ed7n h\u1ee3p, c\u1ee5 th\u1ec3 \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ed7n h\u1ee3p gi\u1ea3m c\u00e0ng nhi\u1ec1u khi h\u00e0m l\u01b0\u1ee3ng c\u1ed1t li\u1ec7u v\u00e0 t\u1ef7 di\u1ec7n c\u1ee7a ch\u00fang c\u00e0ng l\u1edbn. Khi thay \u0111\u1ed5i chi ph\u00ed xi m\u0103ng trong b\u00ea t\u00f4ng t\u1eeb 200 \u0111\u1ebfn 400 kg\/m^3 v\u1edbi l\u01b0\u1ee3ng n\u01b0\u1edbc chi ph\u00ed kh\u00f4ng \u0111\u1ed5i s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m c\u00e0ng nh\u1ecf v\u00e0 th\u1ef1c t\u1ebf ch\u00fang c\u00f3 th\u1ec3 kh\u00f4ng t\u00ednh \u0111\u1ebfn khi nh\u1eadn \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng c\u1ed1 \u0111\u1ecbnh. \u0110\u1ed9 l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ed7n h\u1ee3p thay \u0111\u1ed5i ch\u1ec9 khi thay \u0111\u1ed5i l\u01b0\u1ee3ng n\u01b0\u1edbc chi ph\u00ed. Quy lu\u1eadt n\u00e0y c\u00f3 t\u00ean g\u1ecdi l\u00e0 \u201dquy lu\u1eadt l\u01b0\u1ee3ng c\u1ea7n n\u01b0\u1edbc kh\u00f4ng \u0111\u1ed5i\u201d v\u00e0 cho ph\u00e9p trong c\u00e1c t\u00ednh to\u00e1n s\u1eed d\u1ee5ng s\u1ef1 ph\u1ee5 thu\u1ed9c \u0111\u01a1n gi\u1ea3n c\u1ee7a \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m v\u00e0o l\u01b0\u1ee3ng n\u01b0\u1edbc chi ph\u00ed. \u0110\u1ed9 l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i t\u0103ng, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m c\u00f2n c\u01b0\u1eddng \u0111\u1ed9 h\u1ea7u nh\u01b0 kh\u00f4ng thay \u0111\u1ed5i khi t\u0103ng h\u00e0m l\u01b0\u1ee3ng h\u1ed3 xi m\u0103ng v\u1edbi t\u1ef7 l\u1ec7 N\/X kh\u00f4ng \u0111\u1ed5i ho\u1eb7c gi\u1ea3m l\u01b0\u1ee3ng c\u1ed1t li\u1ec7u. N\u1ebfu nh\u01b0 nh\u1eadn h\u1ed3 xi m\u0103ng ch\u1ec9 v\u1edbi s\u1ed1 l\u01b0\u1ee3ng c\u1ea7n \u0111\u1ec3 l\u1ea5p \u0111\u1ea7y c\u00e1c l\u1ed7 r\u1ed7ng gi\u1eefa c\u00e1c c\u1ed1t li\u1ec7u, th\u00ec h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m nh\u1eadn \u0111\u01b0\u1ee3c s\u1ebd c\u1ee9ng, kh\u00f4ng \u0111\u1ea1t t\u00ednh c\u00f4ng t\u00e1c. \u0110\u1ec3 h\u1ed7n h\u1ee3p tr\u1edf th\u00e0nh l\u01b0u \u0111\u1ed9ng c\u1ea7n kh\u00f4ng l\u1ea5p \u0111\u00e0y c\u00e1c l\u1ed7 r\u1ed7ng, m\u00e0 c\u00f2n d\u1ecbch c\u00e1c h\u1ea1t c\u1ed1t li\u1ec7u b\u1eb1ng c\u00e1c l\u1edbp ng\u0103n c\u00e1ch b\u1eb1ng h\u1ed3 xi m\u0103ng. Ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c t\u00ednh ch\u1ea5t c\u1ee7a c\u1ed1t li\u1ec7u v\u00e0 t\u1ef7 l\u1ec7 gi\u1eefa c\u00e1t v\u00e0 \u0111\u00e1 d\u0103m h\u00e0m l\u01b0\u1ee3ng t\u1ed1i thi\u1ec3u c\u1ee7a h\u1ed3 xi m\u0103ng trong h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m h\u00e0m l\u01b0\u1ee3ng n\u00e0y \u0111\u1ea3m b\u1ea3o ch\u00fang kh\u00f4ng ph\u00e2n t\u1ea7ng v\u00e0 l\u00e8n ch\u1eb7t c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng, n\u1eb1m trong kho\u1ea3ng 170-200, 1 trong h\u1ed7n h\u1ee3p c\u1ee9ng v\u00e0 \u0111\u1ebfn 220-270, 1 trong h\u1ed7n h\u1ee3p l\u01b0u \u0111\u1ed9ng v\u00e0 ch\u1ea3y. C\u00e1c t\u00ednh ch\u1ea5t c\u1ee7a xi m\u0103ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m: s\u1eed d\u1ee5ng xi m\u0103ng c\u00f3 l\u01b0\u1ee3ng n\u01b0\u1edbc ti\u00eau chu\u1ea9n cao l\u00e0m gi\u1ea3m \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m (v\u1edbi l\u01b0\u1ee3ng n\u01b0\u1edbc chi ph\u00ed kh\u00f4ng \u0111\u1ed5i). H\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m ch\u1ee9a xi m\u0103ng p\u00f3c l\u0103ng puzolan v\u1edbi ph\u1ee5 gia silic ho\u1ea1t t\u00ednh, \u0111\u1eb7c bi\u1ec7t t\u1eeb ngu\u1ed3n g\u1ed1c tr\u1ea7m t\u00edch ( Tr\u00eapl,\u0111iatomic), \u1edf c\u00f9ng m\u1ed9t l\u01b0\u1ee3ng n\u01b0\u1edbc chi ph\u00ed c\u00f3 \u0111\u1ed9 s\u1ee5t n\u00f3n nh\u1ecf h\u01a1n so v\u1edbi h\u1ed7n h\u1ee3p t\u1eeb xi m\u0103ng p\u00f3c l\u0103ng th\u00f4ng d\u1ee5ng. \u0110\u1ed9 l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m t\u0103ng khi t\u0103ng h\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc (nh\u01b0ng n\u1ebfu chi ph\u00ed xi m\u0103ng kh\u00f4ng \u0111\u1ed5i th\u00ec c\u01b0\u1eddng \u0111\u1ed9 b\u00ea t\u00f4ng s\u1ebd gi\u1ea3m). Tuy nhi\u00ean m\u1ed7i m\u1ed9t h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m c\u00f3 kh\u1ea3 n\u0103ng gi\u1eef l\u01b0\u1ee3ng n\u01b0\u1edbcnh\u1ea5t \u0111\u1ecbnh, khi h\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc l\u1edbn m\u1ed9t ph\u1ea7n c\u1ee7a n\u00f3 t\u00e1ch kh\u1ecfi h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m \u0111i\u1ec1u n\u00e0y kh\u00f4ng cho ph\u00e9p. S\u1ef1 bi\u1ebfn \u0111\u1ed5i h\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc l\u00e0 nh\u00e2n t\u1ed1 ch\u00ednh \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u1ec7t c\u1ee7a h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m. V\u1eefa b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m l\u00e0 h\u1ed7n h\u1ee3p v\u1eadt li\u1ec7u m\u00e0 t\u1eeb l\u00fac tr\u1ed9n \u0111\u1ebfn l\u00fac g\u1ea7n nh\u1ea5t l\u00e0 l\u00fac c\u00f3 th\u1ec3 \u0111\u1ed5 xong v\u00e0o khu\u00f4n \u0111\u00fac b\u00ea t\u00f4ng ho\u00e0n to\u00e0n kh\u00f4ng c\u00f3 c\u01b0\u1eddng \u0111\u1ed9, kh\u00f4ng th\u1ec3 ch\u1ecbu l\u1ef1c \u0111\u01b0\u1ee3c, v\u00e0 \u1edf d\u1ea1ng l\u1ecfng v\u00f4 \u0111\u1ecbnh h\u00ecnh, c\u00f3 r\u1ea5t \u00edt n\u1ed9i li\u00ean k\u1ebft ch\u1ecbu l\u1ef1c, n\u00ean kh\u00f4ng th\u1ec3 c\u00f3 \u0111\u1ed9 c\u1ee9ng c\u01a1 h\u1ecdc \u0111\u01b0\u1ee3c. H\u00ecnh d\u1ea1ng c\u00f2n tu\u1ef3 thu\u1ed9c v\u00e0o thi\u1ebft b\u1ecb t\u1ea1o khu\u00f4n ch\u1ee9a \u0111\u1ef1ng h\u1ed7n h\u1ee3p n\u00e0y. H\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m kh\u00f4ng l\u00e0 k\u1ebft c\u1ea5u b\u00ea t\u00f4ng \u0111\u1ec3 c\u00f3 \u0111\u1ed9 c\u1ee9ng ch\u1ecbu l\u1ef1c (m\u00f4 dun \u0111\u00e0n h\u1ed3i). Th\u1ef1c ra t\u00e1c gi\u1ea3 ch\u1ec9 \u0111ang \u0111\u1ecbnh ngh\u0129a \u0111\u1ed9 s\u1ee5t c\u1ee7a h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng (hay \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ed7n h\u1ee3p b\u00ea t\u00f4ng t\u01b0\u01a1i, \u0111\u1ec3 \u0111o l\u01b0\u1eddng t\u00ednh d\u1ec5 ch\u1ea3y, d\u1ec5 \u0111\u1ed5 khu\u00f4n c\u1ee7a v\u1eefa b\u00ea t\u00f4ng t\u01b0\u01a1i, b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m) d\u01b0\u1edbi m\u1ed9t t\u00ean g\u1ecdi kh\u00e1c m\u00e0 th\u00f4i.<\/li><\/ol>\n\n\n\n

      Ngu\u1ed3n: ST<\/em><\/p>\n\n\n\n

      <\/p>\n\n\n\n

      <\/div>\n\n\n\n
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      Mauris ut orci dapibus, sollicitudin metus id, facilisis magna. Praesent pellentesque consequat nibh. Ut egestas velit quis ante tincidunt, eget luctus orci tincidunt. Cras massa augue, facilisis sit amet mattis vel, mollis vel neque. Nam maximus laoreet erat, a sagittis risus auctor non. Interdum et malesuada fames ac ante ipsum primis in faucibus. Praesent at interdum felis. Pellentesque facilisis vulputate justo, in euismod turpis aliquet id. Nam ut nibh eros.Quisque libero nisi, vestibulum quis purus eu, pulvinar condimentum fe<\/p>\n<\/div>\n\n\n\n

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      Donec interdum felis fringilla posuere pellentesque. Duis elementum blandit justo, eget tincidunt diam sollicitudin sed. Nulla hendrerit tempor nisi non feugiat. Curabitur a auctor nisl. Sed sagittis purus ac felis venenatis, at sagittis ante suscipit. Nulla lacinia eros odio, sit amet fringilla nisl porttitor sit amet. Nunc tempus, nunc a rutrum ullamcorper, lacus purus porttitor lacus, vitae ullamcorper erat erat quis nibh. Sed vitae diam sed quam malesuada gravida sed ac nisl. Fusce sed accumsan purus. Praesent at interdum felis. <\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

      \u0110\u1ed9 c\u1ee9ng b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m l\u00e0 g\u00ec? \u0110\u1ecbnh ngh\u0129a:\u00a0 \u00a0\u0110\u1ed9 c\u1ee9ng c\u1ee7a b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m hay c\u00f2n g\u1ecdi l\u00e0 t\u00ednh c\u00f4ng t\u00e1c hay t\u00ednh d\u1ec5 \u0111\u1ed5 c\u1ee7a b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m. \u00a0 T\u00ednh d\u1ec5 \u0111\u1ed5 th\u1ef1c t\u1ebf sinh ra t\u1eeb vi\u1ec7c t\u1ed5ng h\u1ee3p 2 y\u1ebfu t\u1ed1 sau:  Y\u1ebfu t\u1ed1 \u0111\u1ed9ng h\u1ecdc:\u0111\u00f3 l\u00e0 \u0111\u1ed9 […]<\/p>\n","protected":false},"author":1,"featured_media":907,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_ti_tpc_template_sync":false,"_ti_tpc_template_id":"","footnotes":""},"categories":[6],"tags":[],"class_list":["post-102","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghe"],"_links":{"self":[{"href":"https:\/\/betongtayninh.com\/index.php\/wp-json\/wp\/v2\/posts\/102","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/betongtayninh.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/betongtayninh.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/betongtayninh.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/betongtayninh.com\/index.php\/wp-json\/wp\/v2\/comments?post=102"}],"version-history":[{"count":2,"href":"https:\/\/betongtayninh.com\/index.php\/wp-json\/wp\/v2\/posts\/102\/revisions"}],"predecessor-version":[{"id":1196,"href":"https:\/\/betongtayninh.com\/index.php\/wp-json\/wp\/v2\/posts\/102\/revisions\/1196"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/betongtayninh.com\/index.php\/wp-json\/wp\/v2\/media\/907"}],"wp:attachment":[{"href":"https:\/\/betongtayninh.com\/index.php\/wp-json\/wp\/v2\/media?parent=102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/betongtayninh.com\/index.php\/wp-json\/wp\/v2\/categories?post=102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/betongtayninh.com\/index.php\/wp-json\/wp\/v2\/tags?post=102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}