{"id":10525,"date":"2026-04-09T10:21:50","date_gmt":"2026-04-09T03:21:50","guid":{"rendered":"https:\/\/dufago.com.vn\/?p=10525"},"modified":"2026-04-09T11:29:46","modified_gmt":"2026-04-09T04:29:46","slug":"be-tong-mac-450-la-gi-cuong-do-ung-dung-va-cach-lua-chon-phu-hop","status":"publish","type":"post","link":"https:\/\/dufago.com.vn\/en\/be-tong-mac-450-la-gi-cuong-do-ung-dung-va-cach-lua-chon-phu-hop\/","title":{"rendered":"B\u00ea t\u00f4ng m\u00e1c 450 l\u00e0 g\u00ec? C\u01b0\u1eddng \u0111\u1ed9, \u1ee9ng d\u1ee5ng v\u00e0 c\u00e1ch l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p"},"content":{"rendered":"

M\u00e1c b\u00ea t\u00f4ng kh\u00f4ng ph\u1ea3i l\u00e0 con s\u1ed1 c\u00e0ng cao c\u00e0ng t\u1ed1t, m\u00e0 l\u00e0 ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng h\u1ea1ng m\u1ee5c v\u00e0 \u0111i\u1ec1u ki\u1ec7n thi c\u00f4ng. Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, vi\u1ec7c ch\u1ecdn sai m\u00e1c c\u00f3 th\u1ec3 l\u00e0m t\u0103ng chi ph\u00ed m\u00e0 kh\u00f4ng c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng. B\u00ea t\u00f4ng m\u00e1c 450 th\u01b0\u1eddng n\u1eb1m trong v\u00f9ng \u201cnh\u1ea1y c\u1ea3m\u201d \u2014 v\u1eeba \u0111\u1ee7 cao \u0111\u1ec3 b\u1ecb l\u1ea1m d\u1ee5ng, v\u1eeba \u0111\u1ee7 ph\u1ed5 bi\u1ebfn \u0111\u1ec3 d\u1ec5 b\u1ecb hi\u1ec3u sai. V\u00ec v\u1eady, vi\u1ec7c hi\u1ec3u \u0111\u00fang v\u00e0 d\u00f9ng \u0111\u00fang m\u00e1c 450 l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh thi c\u00f4ng.<\/span><\/strong><\/p>\n

\"\"
B\u00ea t\u00f4ng m\u00e1c 450 l\u00e0 g\u00ec? C\u01b0\u1eddng \u0111\u1ed9, \u1ee9ng d\u1ee5ng v\u00e0 c\u00e1ch l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p<\/figcaption><\/figure>\n

B\u00ea t\u00f4ng m\u00e1c 450 l\u00e0 g\u00ec?<\/span><\/strong><\/h2>\n

B\u00ea t\u00f4ng m\u00e1c 450 l\u00e0 lo\u1ea1i b\u00ea t\u00f4ng c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n \u0111\u1ea1t 450 kG\/cm\u00b2 (ho\u1eb7c 45 MPa) sau 28 ng\u00e0y \u0111\u00f4ng c\u1ee9ng trong \u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n. \u0110\u00e2y l\u00e0 ch\u1ec9 s\u1ed1 \u0111o kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c n\u00e9n c\u1ee7a kh\u1ed1i b\u00ea t\u00f4ng tr\u01b0\u1edbc khi b\u1ecb ph\u00e1 ho\u1ea1i.<\/span><\/p>\n

Gi\u1ea3i th\u00edch \u0111\u01a1n gi\u1ea3n:<\/span><\/p>\n

    \n
  • – M\u00e1c 450 = M\u1ed7i cm\u00b2 b\u1ec1 m\u1eb7t b\u00ea t\u00f4ng ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ef1c n\u00e9n t\u1ed1i \u0111a 450 kg<\/span><\/li>\n
  • – T\u01b0\u01a1ng \u0111\u01b0\u01a1ng 45 MPa (MegaPascal) theo h\u1ec7 \u0111o l\u01b0\u1eddng qu\u1ed1c t\u1ebf<\/span><\/li>\n
  • – Cao h\u01a1n 50% so v\u1edbi b\u00ea t\u00f4ng m\u00e1c 300 (lo\u1ea1i ph\u1ed5 bi\u1ebfn cho nh\u00e0 d\u00e2n d\u1ee5ng)<\/span><\/li>\n<\/ul>\n

    Ph\u00e2n lo\u1ea1i theo ti\u00eau chu\u1ea9n Vi\u1ec7t Nam<\/span><\/strong><\/p>\n

    Theo TCVN 9341:2012 (Ti\u00eau chu\u1ea9n Vi\u1ec7t Nam v\u1ec1 b\u00ea t\u00f4ng t\u01b0\u01a1i), b\u00ea t\u00f4ng m\u00e1c 450 thu\u1ed9c nh\u00f3m b\u00ea t\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c c\u00f4ng tr\u00ecnh \u0111\u1eb7c bi\u1ec7t v\u1edbi y\u00eau c\u1ea7u ch\u1ecbu l\u1ef1c l\u1edbn v\u00e0 tu\u1ed5i th\u1ecd d\u00e0i.<\/span><\/p>\n

    Hi\u1ec3u \u0111\u00fang k\u00fd hi\u1ec7u 450\/R28\/12-16<\/span><\/strong><\/h2>\n

    Trong th\u1ef1c t\u1ebf thi c\u00f4ng, b\u00ea t\u00f4ng m\u00e1c 450 kh\u00f4ng ch\u1ec9 \u0111\u01b0\u1ee3c g\u1ecdi \u0111\u01a1n gi\u1ea3n l\u00e0 “m\u00e1c 450” m\u00e0 c\u00f2n c\u00f3 k\u00fd hi\u1ec7u k\u1ef9 thu\u1eadt \u0111\u1ea7y \u0111\u1ee7 theo ti\u00eau chu\u1ea9n TCVN 9341:2012.<\/span><\/p>\n

    1. S\u1ed1 \u0111\u1ea7u ti\u00ean – C\u1ea5p \u0111\u1ed9 b\u1ec1n (450)<\/span><\/strong><\/h3>\n
      \n
    • – 450 = C\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu n\u00e9n y\u00eau c\u1ea7u l\u00e0 450 kG\/cm\u00b2<\/span><\/li>\n
    • – \u0110\u00e2y l\u00e0 th\u00f4ng s\u1ed1 quan tr\u1ecdng nh\u1ea5t, quy\u1ebft \u0111\u1ecbnh kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee7a c\u00f4ng tr\u00ecnh<\/span><\/li>\n<\/ul>\n

      2. R28 ho\u1eb7c R7 – Tu\u1ed5i b\u00ea t\u00f4ng<\/span><\/strong><\/h3>\n
        \n
      • – R28 = \u0110\u1ea1t c\u01b0\u1eddng \u0111\u1ed9 thi\u1ebft k\u1ebf sau 28 ng\u00e0y (ti\u00eau chu\u1ea9n)<\/span><\/li>\n
      • – R7 = \u0110\u1ea1t c\u01b0\u1eddng \u0111\u1ed9 nhanh sau 7 ng\u00e0y (b\u00ea t\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao s\u1edbm)<\/span><\/li>\n<\/ul>\n

        \u1ee8ng d\u1ee5ng:<\/span><\/p>\n

          \n
        • – R28: C\u00f4ng tr\u00ecnh th\u00f4ng th\u01b0\u1eddng, kh\u00f4ng g\u1ea5p ti\u1ebfn \u0111\u1ed9<\/span><\/li>\n
        • – R7: C\u00f4ng tr\u00ecnh c\u1ea7n thi c\u00f4ng nhanh, th\u00e1o v\u00e1n khu\u00f4n s\u1edbm, ti\u1ebft ki\u1ec7m th\u1eddi gian<\/span><\/li>\n<\/ul>\n
          \"\"
          Hi\u1ec3u \u0111\u00fang k\u00fd hi\u1ec7u 450\/R28\/12-16<\/figcaption><\/figure>\n

          3. \u0110\u1ed9 s\u1ee5t – \u0110\u1ed9 linh \u0111\u1ed9ng (12-16 cm)<\/span><\/strong><\/h3>\n

          \u0110\u1ed9 s\u1ee5t (Slump) l\u00e0 ch\u1ec9 s\u1ed1 \u0111o \u0111\u1ed9 d\u1ebbo, kh\u1ea3 n\u0103ng ch\u1ea3y lan c\u1ee7a b\u00ea t\u00f4ng t\u01b0\u01a1i.<\/span><\/p>\n\n\n\n\n\n\n\n
          \u0110\u1ed9 s\u1ee5t (cm)<\/th>\n\u0110\u1eb7c \u0111i\u1ec3m<\/th>\nApplication<\/th>\n<\/tr>\n
          10-14<\/td>\nKh\u00f4, c\u1ee9ng, \u00edt d\u1ebbo<\/td>\nL\u00f3t n\u1ec1n, m\u00f3ng c\u00f4ng tr\u00ecnh th\u1ea5p t\u1ea7ng<\/td>\n<\/tr>\n
          12-16<\/td>\nD\u1ebbo v\u1eeba ph\u1ea3i, ti\u00eau chu\u1ea9n<\/td>\nM\u00f3ng, c\u1ed9t, v\u00e1ch th\u00f4ng th\u01b0\u1eddng<\/td>\n<\/tr>\n
          14-18<\/td>\nD\u1ebbo t\u1ed1t, d\u1ec5 thi c\u00f4ng<\/td>\nS\u00e0n, v\u1ec9a th\u00f4ng \u1ed1ng, c\u1ed9t v\u00e1ch c\u00f3 c\u1ed1t th\u00e9p d\u00e0y<\/td>\n<\/tr>\n
          16-20<\/td>\nR\u1ea5t d\u1ebbo, ch\u1ea3y t\u1ed1t<\/td>\nV\u00e1ch m\u1ecfng, c\u1ea5u ki\u1ec7n ph\u1ee9c t\u1ea1p, b\u01a1m cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Nguy\u00ean t\u1eafc:<\/strong><\/em> \u0110\u1ed9 s\u1ee5t c\u00e0ng cao \u2192 B\u00ea t\u00f4ng c\u00e0ng d\u1ec5 \u0111\u1ed5, d\u1ec5 \u0111\u1ea7m \u2192 Ph\u00f9 h\u1ee3p v\u1edbi c\u1ea5u ki\u1ec7n c\u00f3 c\u1ed1t th\u00e9p d\u00e0y \u0111\u1eb7c ho\u1eb7c ti\u1ebft di\u1ec7n nh\u1ecf.<\/span><\/p>\n

          4. B\u1ea3ng c\u00e1c bi\u1ebfn th\u1ec3 ph\u1ed5 bi\u1ebfn c\u1ee7a m\u00e1c 450<\/span><\/strong><\/h3>\n\n\n\n\n\n\n\n
          K\u00fd hi\u1ec7u<\/th>\nH\u1ea1ng m\u1ee5c s\u1eed d\u1ee5ng<\/th>\n\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<\/tr>\n
          450\/R28\/12-16<\/td>\nM\u00f3ng, c\u1ed9t th\u00f4ng th\u01b0\u1eddng, l\u1ed3ng c\u1ecdc<\/td>\nTi\u00eau chu\u1ea9n, c\u1ee9ng v\u1eeba<\/td>\n<\/tr>\n
          450\/R28\/14-18<\/td>\nS\u00e0n, v\u1ec9a th\u00f4ng \u1ed1ng, c\u1ed9t v\u00e1ch<\/td>\nD\u1ebbo h\u01a1n, d\u1ec5 thi c\u00f4ng<\/td>\n<\/tr>\n
          450\/R7\/14-18<\/td>\nS\u00e0n, v\u00e1ch (c\u1ea7n ti\u1ebfn \u0111\u1ed9 nhanh)<\/td>\n\u0110\u1ea1t c\u01b0\u1eddng \u0111\u1ed9 s\u1edbm sau 7 ng\u00e0y<\/td>\n<\/tr>\n
          450\/R28\/16-20<\/td>\nV\u00e1ch m\u1ecfng, c\u1ea5u ki\u1ec7n ph\u1ee9c t\u1ea1p<\/td>\nR\u1ea5t d\u1ebbo, d\u1ec5 b\u01a1m cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Note:<\/em> Khi \u0111\u1eb7t h\u00e0ng b\u00ea t\u00f4ng, b\u1ea1n c\u1ea7n cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 k\u00fd hi\u1ec7u n\u00e0y cho nh\u00e0 cung c\u1ea5p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o nh\u1eadn \u0111\u00fang lo\u1ea1i b\u00ea t\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft k\u1ebf.<\/span><\/p>\n

          B\u00ea t\u00f4ng m\u00e1c 450 d\u00f9ng cho h\u1ea1ng m\u1ee5c n\u00e0o?<\/span><\/strong><\/span><\/h2>\n

          B\u00ea t\u00f4ng m\u00e1c 450 kh\u00f4ng ph\u1ea3i l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho m\u1ecdi c\u00f4ng tr\u00ecnh m\u00e0 ch\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi c\u00f3 y\u00eau c\u1ea7u \u0111\u1eb7c bi\u1ec7t v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 \u0111\u1ed9 b\u1ec1n.<\/span><\/p>\n

          \"\"
          B\u00ea t\u00f4ng m\u00e1c 450 d\u00f9ng cho h\u1ea1ng m\u1ee5c n\u00e0o?<\/figcaption><\/figure>\n

          C\u00e1c h\u1ea1ng m\u1ee5c th\u01b0\u1eddng s\u1eed d\u1ee5ng<\/span><\/strong><\/span><\/h3>\n

          1. M\u00f3ng c\u00f4ng tr\u00ecnh cao t\u1ea7ng (t\u1eeb 15 t\u1ea7ng tr\u1edf l\u00ean)<\/span><\/h4>\n
            \n
          • – M\u00f3ng ch\u1ecbu t\u1ea3i tr\u1ecdng r\u1ea5t l\u1edbn t\u1eeb to\u00e0n b\u1ed9 c\u00f4ng tr\u00ecnh<\/span><\/li>\n
          • – Y\u00eau c\u1ea7u \u0111\u1ed9 b\u1ec1n t\u1ed1i thi\u1ec3u 70-100 n\u0103m<\/span><\/li>\n
          • – \u0110\u1ea3m b\u1ea3o an to\u00e0n tuy\u1ec7t \u0111\u1ed1i cho k\u1ebft c\u1ea5u<\/span><\/li>\n<\/ul>\n

            2. C\u1ed9t, v\u00e1ch ch\u1ecbu l\u1ef1c l\u1edbn<\/span><\/h4>\n
              \n
            • – C\u1ed9t tr\u1ee5 nh\u00e0 cao t\u1ea7ng (t\u1eeb t\u1ea7ng h\u1ea7m \u0111\u1ebfn t\u1ea7ng 5-10)<\/span><\/li>\n
            • – V\u00e1ch core (l\u00f5i c\u1ee9ng) c\u1ee7a t\u00f2a nh\u00e0 cao t\u1ea7ng<\/span><\/li>\n
            • – C\u1ed9t c\u1ea7u, tr\u1ee5 c\u1ea7u v\u01b0\u1ee3t<\/span><\/li>\n<\/ul>\n

              3. S\u00e0n c\u00f4ng tr\u00ecnh \u0111\u1eb7c bi\u1ec7t<\/span><\/h4>\n
                \n
              • – S\u00e0n t\u1ea7ng h\u1ea7m ch\u1ecbu \u00e1p l\u1ef1c n\u01b0\u1edbc ng\u1ea7m cao<\/span><\/li>\n
              • – S\u00e0n b\u1ec3 ch\u1ee9a, h\u1ed3 b\u01a1i<\/span><\/li>\n
              • – S\u00e0n khu v\u1ef1c m\u00e1y m\u00f3c n\u1eb7ng (nh\u00e0 x\u01b0\u1edfng, b\u00e3i \u0111\u1ed7 xe container)<\/span><\/li>\n<\/ul>\n

                4. C\u1ea7u \u0111\u01b0\u1eddng v\u00e0 h\u1ea1 t\u1ea7ng giao th\u00f4ng<\/span><\/h4>\n
                  \n
                • – M\u1eb7t c\u1ea7u, d\u1ea7m c\u1ea7u<\/span><\/li>\n
                • – \u0110\u01b0\u1eddng cao t\u1ed1c, \u0111\u01b0\u1eddng b\u0103ng s\u00e2n bay<\/span><\/li>\n
                • – H\u1ea7m chui, c\u1ea7u v\u01b0\u1ee3t<\/span><\/li>\n<\/ul>\n

                  5. C\u00f4ng tr\u00ecnh th\u1ee7y l\u1ee3i, b\u1ebfn c\u1ea3ng<\/span><\/h4>\n
                    \n
                  • – \u0110\u1eadp th\u1ee7y \u0111i\u1ec7n<\/span><\/li>\n
                  • – C\u1ed1ng tho\u00e1t n\u01b0\u1edbc l\u1edbn<\/span><\/li>\n
                  • – B\u1ebfn c\u1ea3ng, c\u1ea7u t\u00e0u<\/span><\/li>\n<\/ul>\n

                    6. C\u00f4ng tr\u00ecnh \u0111\u1eb7c bi\u1ec7t kh\u00e1c<\/span><\/h4>\n
                      \n
                    • – C\u00f4ng tr\u00ecnh qu\u1ed1c ph\u00f2ng<\/span><\/li>\n
                    • – H\u1ea7m tr\u00fa \u1ea9n<\/span><\/li>\n
                    • – T\u1ea7ng h\u1ea7m s\u00e2u (B3, B4 tr\u1edf xu\u1ed1ng)<\/span><\/li>\n<\/ul>\n

                      B\u1ea3ng khuy\u1ebfn ngh\u1ecb m\u00e1c b\u00ea t\u00f4ng theo h\u1ea1ng m\u1ee5c<\/span><\/strong><\/span><\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n
                      H\u1ea1ng m\u1ee5c<\/th>\nM\u00e1c khuy\u1ebfn ngh\u1ecb<\/th>\nL\u00fd do<\/th>\n<\/tr>\n
                      M\u00f3ng nh\u00e0 1-3 t\u1ea7ng<\/td>\n200-250<\/td>\n\u0110\u1ee7 ch\u1ecbu l\u1ef1c, ti\u1ebft ki\u1ec7m<\/td>\n<\/tr>\n
                      M\u00f3ng nh\u00e0 4-10 t\u1ea7ng<\/td>\n300-350<\/td>\nC\u00e2n b\u1eb1ng gi\u00e1 v\u00e0 \u0111\u1ed9 b\u1ec1n<\/td>\n<\/tr>\n
                      M\u00f3ng nh\u00e0 11-20 t\u1ea7ng<\/td>\n400-450<\/td>\nCh\u1ecbu t\u1ea3i l\u1edbn, an to\u00e0n cao<\/td>\n<\/tr>\n
                      M\u00f3ng nh\u00e0 tr\u00ean 20 t\u1ea7ng<\/td>\n450-600<\/td>\nY\u00eau c\u1ea7u b\u1eaft bu\u1ed9c theo thi\u1ebft k\u1ebf<\/td>\n<\/tr>\n
                      C\u1ed9t t\u1ea7ng 1-5 (nh\u00e0 cao t\u1ea7ng)<\/td>\n450-600<\/td>\nCh\u1ecbu l\u1ef1c t\u1eadp trung cao nh\u1ea5t<\/td>\n<\/tr>\n
                      S\u00e0n th\u00f4ng th\u01b0\u1eddng<\/td>\n250-300<\/td>\n\u0110\u1ee7 ti\u00eau chu\u1ea9n<\/td>\n<\/tr>\n
                      S\u00e0n t\u1ea7ng h\u1ea7m<\/td>\n350-450<\/td>\nCh\u1ed1ng th\u1ea5m, ch\u1ecbu \u00e1p l\u1ef1c<\/td>\n<\/tr>\n
                      V\u00e1ch core (l\u00f5i c\u1ee9ng)<\/td>\n450-600<\/td>\nCh\u1ecbu l\u1ef1c ngang (gi\u00f3, \u0111\u1ed9ng \u0111\u1ea5t)<\/td>\n<\/tr>\n
                      C\u1ea7u \u0111\u01b0\u1eddng<\/td>\n400-450<\/td>\nCh\u1ecbu t\u1ea3i tr\u1ecdng \u0111\u1ed9ng, \u0111\u1ed9 b\u1ec1n cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                      Khi n\u00e0o n\u00ean d\u00f9ng – khi n\u00e0o kh\u00f4ng n\u00ean d\u00f9ng m\u00e1c 450<\/span><\/strong><\/span><\/h2>\n

                      Nh\u1eefng h\u1ea1ng m\u1ee5c, d\u1ef1 \u00e1n n\u00e0o n\u00ean d\u00f9ng b\u00ea t\u00f4ng m\u00e1c 450?<\/span><\/strong><\/span><\/h3>\n
                      \"\"
                      Nh\u1eefng h\u1ea1ng m\u1ee5c, d\u1ef1 \u00e1n n\u00e0o n\u00ean d\u00f9ng b\u00ea t\u00f4ng m\u00e1c 450?<\/figcaption><\/figure>\n

                      1. C\u00f4ng tr\u00ecnh cao t\u1ea7ng (t\u1eeb 15 t\u1ea7ng tr\u1edf l\u00ean)<\/span><\/h4>\n

                      M\u00f3ng v\u00e0 c\u1ed9t t\u1ea7ng th\u1ea5p c\u1ee7a nh\u00e0 cao t\u1ea7ng ch\u1ecbu t\u1ea3i tr\u1ecdng r\u1ea5t l\u1edbn, \u0111\u00f2i h\u1ecfi b\u00ea t\u00f4ng c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 cao \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n k\u1ebft c\u1ea5u.<\/span><\/p>\n

                      2. Khu v\u1ef1c c\u00f3 r\u1ee7i ro thi\u00ean tai<\/span><\/h4>\n
                        \n
                      • – V\u00f9ng \u0111\u1ed9ng \u0111\u1ea5t (t\u1eeb c\u1ea5p 7 tr\u1edf l\u00ean)<\/span><\/li>\n
                      • – Khu v\u1ef1c b\u00e3o l\u1edbn, s\u00f3ng th\u1ea7n<\/span><\/li>\n
                      • – V\u00f9ng c\u00f3 nguy c\u01a1 s\u1ea1t l\u1edf \u0111\u1ea5t<\/span><\/li>\n<\/ul>\n

                        B\u00ea t\u00f4ng m\u00e1c 450 c\u00f3 \u0111\u1ed9 d\u1ebbo dai v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng n\u1ee9t v\u1ee1 t\u1ed1t h\u01a1n khi ch\u1ecbu t\u00e1c \u0111\u1ed9ng \u0111\u1ed9t ng\u1ed9t.<\/span><\/p>\n

                        3. Y\u00eau c\u1ea7u tu\u1ed5i th\u1ecd c\u00f4ng tr\u00ecnh 70-100 n\u0103m<\/span><\/h4>\n

                        C\u00e1c c\u00f4ng tr\u00ecnh h\u1ea1 t\u1ea7ng tr\u1ecdng \u0111i\u1ec3m, c\u00f4ng tr\u00ecnh c\u00f4ng c\u1ed9ng (b\u1ec7nh vi\u1ec7n, tr\u01b0\u1eddng h\u1ecdc, s\u00e2n bay) c\u1ea7n \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd k\u00e9o d\u00e0i.<\/span><\/p>\n

                        4. T\u1ea3i tr\u1ecdng \u0111\u1eb7c bi\u1ec7t l\u1edbn<\/span><\/h4>\n
                          \n
                        • – Kho ch\u1ee9a h\u00e0ng n\u1eb7ng (container, th\u00e9p, xi m\u0103ng)<\/span><\/li>\n
                        • – Nh\u00e0 x\u01b0\u1edfng c\u00f3 m\u00e1y m\u00f3c n\u1eb7ng<\/span><\/li>\n
                        • – B\u00e3i \u0111\u1eadu xe t\u1ea3i, xe \u0111\u1ea7u k\u00e9o<\/span><\/li>\n<\/ul>\n

                          5. D\u1ef1 \u00e1n cao c\u1ea5p, \u01b0u ti\u00ean ch\u1ea5t l\u01b0\u1ee3ng<\/span><\/h4>\n

                          Ch\u1ee7 \u0111\u1ea7u t\u01b0 s\u1eb5n s\u00e0ng chi th\u00eam 30-40% chi ph\u00ed v\u1eadt li\u1ec7u \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1i \u01b0u v\u00e0 gi\u1ea3m chi ph\u00ed b\u1ea3o tr\u00ec, s\u1eeda ch\u1eefa trong t\u01b0\u01a1ng lai.<\/span><\/p>\n

                          Nh\u1eefng h\u1ea1ng m\u1ee5c, d\u1ef1 \u00e1n n\u00e0o kh\u00f4ng n\u00ean d\u00f9ng b\u00ea t\u00f4ng m\u00e1c 450?<\/span><\/strong><\/span><\/h3>\n
                          \"\"
                          Nh\u1eefng h\u1ea1ng m\u1ee5c, d\u1ef1 \u00e1n n\u00e0o kh\u00f4ng n\u00ean d\u00f9ng b\u00ea t\u00f4ng m\u00e1c 450?<\/figcaption><\/figure>\n

                          1. Nh\u00e0 d\u00e2n d\u1ee5ng th\u1ea5p t\u1ea7ng (1-5 t\u1ea7ng)<\/span><\/h4>\n

                          N\u00ean d\u00f9ng: B\u00ea t\u00f4ng m\u00e1c 250-300. V\u1edbi l\u00fd do l\u00e0 t<\/span>\u1ea3i tr\u1ecdng kh\u00f4ng l\u1edbn, m<\/span>\u00e1c 250-300 \u0111\u1ee7 \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n an to\u00e0n, t<\/span>i\u1ebft ki\u1ec7m 30-40% chi ph\u00ed.<\/span><\/span><\/p>\n

                          2. C\u00f4ng tr\u00ecnh ph\u1ee5, t\u1ea1m th\u1eddi<\/span><\/h4>\n

                          Nh\u00e0 kho t\u1ea1m, nh\u00e0 v\u1ec7 sinh, t\u01b0\u1eddng r\u00e0o, s\u00e2n v\u01b0\u1eddn. <\/span>N\u00ean d\u00f9ng: B\u00ea t\u00f4ng m\u00e1c 150-200.<\/span><\/span><\/p>\n

                          3. Ng\u00e2n s\u00e1ch h\u1ea1n ch\u1ebf v\u00e0 kh\u00f4ng c\u00f3 y\u00eau c\u1ea7u \u0111\u1eb7c bi\u1ec7t<\/span><\/h4>\n

                          N\u1ebfu c\u00f4ng tr\u00ecnh kh\u00f4ng n\u1eb1m trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p n\u00eau tr\u00ean v\u00e0 ng\u00e2n s\u00e1ch eo h\u1eb9p, vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1c th\u1ea5p h\u01a1n v\u1eabn \u0111\u1ea3m b\u1ea3o an to\u00e0n theo thi\u1ebft k\u1ebf.<\/span><\/p>\n

                          4. M\u00f3ng c\u00f4ng tr\u00ecnh th\u1ea5p t\u1ea7ng tr\u00ean n\u1ec1n \u0111\u1ea5t t\u1ed1t<\/span><\/h4>\n

                          N\u1ec1n \u0111\u1ea5t c\u1ee9ng, \u1ed5n \u0111\u1ecbnh, s\u1ee9c ch\u1ecbu t\u1ea3i cao kh\u00f4ng c\u1ea7n d\u00f9ng b\u00ea t\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 qu\u00e1 cao cho m\u00f3ng.<\/span><\/p>\n

                          So s\u00e1nh nhanh m\u00e1c 450 v\u1edbi c\u00e1c m\u00e1c ph\u1ed5 bi\u1ebfn<\/span><\/strong><\/span><\/h2>\n

                          \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ecb tr\u00ed c\u1ee7a b\u00ea t\u00f4ng m\u00e1c 450 trong h\u1ec7 th\u1ed1ng ph\u00e2n lo\u1ea1i, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh chi ti\u1ebft v\u1edbi c\u00e1c m\u00e1c ph\u1ed5 bi\u1ebfn kh\u00e1c:<\/span><\/p>\n\n\n\n\n\n\n\n\n\n
                          M\u00e1c<\/th>\nApplication<\/th>\nXi m\u0103ng\/m\u00b3 (kg)<\/th>\n\u0110\u1ed9 s\u1ee5t ti\u00eau chu\u1ea9n (cm)<\/th>\n<\/tr>\n
                          M\u00e1c 250<\/td>\nNh\u00e0 1-3 t\u1ea7ng<\/td>\n280-320<\/td>\n10-12<\/td>\n<\/tr>\n
                          M\u00e1c 300<\/td>\nNh\u00e0 4-7 t\u1ea7ng<\/td>\n320-360<\/td>\n12-14<\/td>\n<\/tr>\n
                          M\u00e1c 350<\/td>\nNh\u00e0 8-12 t\u1ea7ng<\/td>\n360-400<\/td>\n12-16<\/td>\n<\/tr>\n
                          M\u00e1c 400<\/td>\nNh\u00e0 13-18 t\u1ea7ng<\/td>\n400-450<\/td>\n12-16<\/td>\n<\/tr>\n
                          M\u00e1c 450<\/td>\nNh\u00e0 cao t\u1ea7ng, c\u1ea7u \u0111\u01b0\u1eddng<\/td>\n450-500<\/td>\n12-18<\/td>\n<\/tr>\n
                          M\u00e1c 600<\/td>\nC\u00f4ng tr\u00ecnh \u0111\u1eb7c bi\u1ec7t<\/td>\n550-600<\/td>\n14-20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                          B\u00ea t\u00f4ng m\u00e1c 450 n\u1eb1m \u1edf v\u1ecb tr\u00ed “sweet spot” – \u0111i\u1ec3m c\u00e2n b\u1eb1ng t\u1ed1i \u01b0u gi\u1eefa c\u01b0\u1eddng \u0111\u1ed9, gi\u00e1 th\u00e0nh v\u00e0 \u1ee9ng d\u1ee5ng. \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p cho h\u1ea7u h\u1ebft c\u00e1c c\u00f4ng tr\u00ecnh cao t\u1ea7ng, c\u1ea7u \u0111\u01b0\u1eddng m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ebfn m\u00e1c si\u00eau cao nh\u01b0 600.<\/span><\/p>\n

                          Th\u00e0nh ph\u1ea7n v\u00e0 t\u1ef7 l\u1ec7 ph\u1ed1i li\u1ec7u b\u00ea t\u00f4ng m\u00e1c 450 chu\u1ea9n<\/span><\/h3>\n

                          \u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u01b0\u1eddng \u0111\u1ed9 450 kG\/cm\u00b2, b\u00ea t\u00f4ng m\u00e1c 450 c\u1ea7n c\u00f3 t\u1ef7 l\u1ec7 ph\u1ed1i li\u1ec7u ch\u00ednh x\u00e1c v\u00e0 s\u1eed d\u1ee5ng nguy\u00ean li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng cao.<\/span><\/p>\n

                          Th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n (cho 1m3 b\u00ea t\u00f4ng t\u01b0\u01a1i)<\/span><\/h3>\n\n\n\n\n\n\n\n\n
                          Th\u00e0nh ph\u1ea7n<\/th>\nKh\u1ed1i l\u01b0\u1ee3ng<\/th>\nVai tr\u00f2<\/th>\n<\/tr>\n
                          Xi m\u0103ng PCM40<\/td>\n450-500 kg<\/td>\nCh\u1ea5t k\u1ebft d\u00ednh ch\u00ednh, quy\u1ebft \u0111\u1ecbnh c\u01b0\u1eddng \u0111\u1ed9<\/td>\n<\/tr>\n
                          C\u00e1t v\u00e0ng<\/td>\n600-650 kg<\/td>\n\u0110i\u1ec1n \u0111\u1ea7y kho\u1ea3ng tr\u1ed1ng, t\u1ea1o \u0111\u1ed9 d\u1ebbo<\/td>\n<\/tr>\n
                          \u0110\u00e1 d\u0103m 1×2<\/td>\n1100-1200 kg<\/td>\nT\u1ea1o khung x\u01b0\u01a1ng, ch\u1ecbu l\u1ef1c n\u00e9n<\/td>\n<\/tr>\n
                          N\u01b0\u1edbc s\u1ea1ch<\/td>\n180-200 l\u00edt<\/td>\nTh\u1ee7y h\u00f3a xi m\u0103ng, t\u1ea1o ph\u1ea3n \u1ee9ng \u0111\u00f3ng c\u1ee9ng<\/td>\n<\/tr>\n
                          Ph\u1ee5 gia<\/td>\nTheo HDSD<\/td>\nT\u0103ng \u0111\u1ed9 d\u1ebbo, ch\u1ed1ng th\u1ea5m, gi\u1ea3m nhi\u1ec7t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                          Dufago \u2013 \u0110\u1ed3ng h\u00e0nh c\u00f9ng b\u1ea1n t\u1eeb kh\u00e2u ch\u1ecdn m\u00e1c \u0111\u1ebfn thi c\u00f4ng<\/span><\/strong><\/span><\/h2>\n

                          Thay v\u00ec ch\u1ec9 cung c\u1ea5p b\u00ea t\u00f4ng theo y\u00eau c\u1ea7u, Dufago t\u1eadp trung v\u00e0o vi\u1ec7c t\u01b0 v\u1ea5n \u0111\u00fang ngay t\u1eeb \u0111\u1ea7u \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 thi c\u00f4ng v\u00e0 t\u1ed1i \u01b0u chi ph\u00ed cho t\u1eebng c\u00f4ng tr\u00ecnh.<\/span><\/p>\n

                          Khi l\u1ef1a ch\u1ecdn b\u00ea t\u00f4ng m\u00e1c 450 t\u1ea1i Dufago, b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3:<\/span><\/p>\n

                            \n
                          • T\u01b0 v\u1ea5n c\u1ea5p ph\u1ed1i ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng h\u1ea1ng m\u1ee5c (m\u00f3ng, s\u00e0n, c\u1ed9t, v\u00e1ch\u2026)<\/span><\/li>\n
                          • \u0110\u1ec1 xu\u1ea5t \u0111\u1ed9 s\u1ee5t v\u00e0 lo\u1ea1i b\u00ea t\u00f4ng theo \u0111i\u1ec1u ki\u1ec7n thi c\u00f4ng th\u1ef1c t\u1ebf<\/span><\/li>\n
                          • G\u1ee3i \u00fd s\u1eed d\u1ee5ng R7 ho\u1eb7c R28 theo ti\u1ebfn \u0111\u1ed9 c\u00f4ng tr\u00ecnh<\/span><\/li>\n
                          • \u0110\u1ea3m b\u1ea3o cung \u1ee9ng b\u00ea t\u00f4ng \u0111\u00fang th\u1eddi gian, \u0111\u00fang y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt<\/span><\/li>\n<\/ul>\n

                            V\u1edbi h\u1ec7 th\u1ed1ng nh\u00e0 m\u00e1y v\u00e0 \u0111\u1ed9i xe v\u1eadn chuy\u1ec3n t\u1ea1i mi\u1ec1n Trung, Dufago c\u00f3 kh\u1ea3 n\u0103ng \u0111\u00e1p \u1ee9ng linh ho\u1ea1t cho nhi\u1ec1u lo\u1ea1i c\u00f4ng tr\u00ecnh t\u1eeb d\u00e2n d\u1ee5ng \u0111\u1ebfn h\u1ea1 t\u1ea7ng. Li\u00ean h\u1ec7 ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n t\u1eadn t\u00ecnh khi b\u1ea1n c<\/span>\u00f3 nhu c\u1ea7u.<\/span><\/p>\n