{"id":9268,"date":"2024-02-26T11:30:53","date_gmt":"2024-02-26T04:30:53","guid":{"rendered":"https:\/\/pcecatlam.vn\/?p=9268"},"modified":"2024-02-27T16:18:19","modified_gmt":"2024-02-27T09:18:19","slug":"phugiadongrannhanh-gioithieu","status":"publish","type":"post","link":"https:\/\/pcecatlam.vn\/en\/phugiadongrannhanh-gioithieu\/","title":{"rendered":"Kh\u00e1m Ph\u00e1 Khoa H\u1ecdc \u0110\u1eb1ng Sau Xi M\u0103ng: Ph\u1ea3n \u1ee8ng Thu\u1ef7 Ho\u00e1 K\u1ef3 Di\u1ec7u !"},"content":{"rendered":"

\"\"<\/p>\n

Kh\u00e1m Ph\u00e1 Khoa H\u1ecdc \u0110\u1eb1ng Sau Xi M\u0103ng: Ph\u1ea3n \u1ee8ng Thu\u1ef7 Ho\u00e1 K\u1ef3 Di\u1ec7u!<\/strong><\/h2>\n

\u00a0Xi m\u0103ng, v\u1eadt li\u1ec7u t\u01b0\u1edfng ch\u1eebng \u0111\u01a1n gi\u1ea3n nh\u01b0ng \u1ea9n ch\u1ee9a s\u1ee9c m\u1ea1nh phi th\u01b0\u1eddng, l\u00e0 n\u1ec1n t\u1ea3ng cho m\u1ecdi c\u00f4ng tr\u00ecnh ki\u1ebfn tr\u00fac. B\u00ed quy\u1ebft n\u1eb1m \u1edf ph\u1ea3n \u1ee9ng thu\u1ef7 ho\u00e1 – m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng khoa h\u1ecdc k\u1ef3 di\u1ec7u, bi\u1ebfn xi m\u0103ng v\u00e0 n\u01b0\u1edbc th\u00e0nh v\u1eadt li\u1ec7u k\u1ebft d\u00ednh v\u00f4 c\u00f9ng b\u1ec1n v\u1eefng.<\/em><\/p>\n

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H\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 h\u00e0nh tr\u00ecnh k\u1ef3 di\u1ec7u n\u00e0y:<\/strong><\/p>\n

Ph\u1ea3n \u1ee9ng thu\u1ef7 ho\u00e1 l\u00e0 g\u00ec?<\/h2>\n

\"\"<\/p>\n

Ph\u1ea3n \u1ee9ng thu\u1ef7 ho\u00e1 l\u00e0 qu\u00e1 tr\u00ecnh k\u1ebft h\u1ee3p gi\u1eefa c\u00e1c kho\u00e1ng ch\u1ea5t trong xi m\u0103ng v\u1edbi n\u01b0\u1edbc, t\u1ea1o ra nh\u1eefng li\u00ean k\u1ebft ho\u00e1 h\u1ecdc m\u1edbi. Qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra t\u1eeb t\u1eeb, gi\u1ea3i ph\u00f3ng nhi\u1ec7t v\u00e0 d\u1eabn \u0111\u1ebfn s\u1ef1 \u0111\u00f3ng r\u1eafn c\u1ee7a h\u1ed7n h\u1ee3p xi m\u0103ng-n\u01b0\u1edbc.<\/p>\n

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Ph\u1ea3n \u1ee9ng thu\u1ef7 ho\u00e1 trong xi m\u0103ng di\u1ec5n ra khi tr\u1ed9n xi m\u0103ng v\u1edbi n\u01b0\u1edbc. Ban \u0111\u1ea7u, kho\u00e1ng alit ph\u1ea3n \u1ee9ng nhanh t\u1ea1o hy\u0111rosilicat canxi v\u00e0 hy\u0111roxit canxi. Belit ph\u1ea3n \u1ee9ng ch\u1eadm h\u01a1n, t\u1ea1o \u00edt Ca(OH)2 h\u01a1n.<\/p>\n

Ph\u1ea3n \u1ee9ng c\u1ee7a alit:<\/h4>\n

2(3CaO.SiO2)+6H2O\u21923CaO.2SiO2.3H2O+3Ca(OH)2<\/em><\/p>\n

Ph\u1ea3n \u1ee9ng c\u1ee7a belit:<\/h4>\n

2(<\/em>2CaO.SiO2)+4H2O\u21923CaO.2SiO2.3H2O+Ca(OH)2<\/em><\/p>\n

Aluminat tricanxi trong xi m\u0103ng ph\u1ea3n \u1ee9ng v\u1edbi n\u01b0\u1edbc t\u1ea1o s\u1ea3n ph\u1ea9m x\u1ed1p, gi\u1ea3m \u0111\u1ed9 b\u1ec1n n\u01b0\u1edbc c\u1ee7a xi m\u0103ng. Ph\u1ea3n \u1ee9ng t\u1ea1o hy\u0111roaluminat 6 n\u01b0\u1edbc:<\/p>\n

3CaO.Al2O3+6H2O\u21923CaO.Al2O3.6H2O<\/em><\/p>\n

\u0110\u1ec3 ch\u1eadm qu\u00e1 tr\u00ecnh \u0111\u00f4ng k\u1ebft, th\u00eam \u0111\u00e1 th\u1ea1ch cao khi nghi\u1ec1n clinker.<\/h4>\n

Th\u1ea1ch cao t\u1ea1o sunfoaluminat canxi ng\u1eadm n\u01b0\u1edbc:<\/p>\n

3CaO.Al2O3+3(CaSO4.2H2O)+26H2O\u21923CaO.Al2O3.3CaSO4.32H2O<\/em><\/p>\n

Feroaluminat tetracanxi t\u1ea1o ra hy\u0111roaluminat v\u00e0 hy\u0111roferit canxi:<\/p>\n

4CaO.Al2O3.Fe2O3+mH2O\u21923CaO.Al2O3.6H2O+CaO.Fe2O3.nH2O<\/em><\/p>\n

\u00a0 \u00a0H\u1ed3 xi m\u0103ng l\u00e0 huy\u1ec1n ph\u00f9 c\u1ee7a n\u01b0\u1edbc, c\u00f3 c\u1ea5u tr\u00fac ng\u01b0ng t\u1ee5. Khi nh\u00e0o tr\u1ed9n, n\u00f3 tr\u1edf n\u00ean d\u1ebbo v\u00e0 ch\u1ea3y, nh\u01b0ng sau \u0111\u00f3 c\u1ee9ng l\u1ea1i.<\/p>\n

Qu\u00e1 tr\u00ecnh r\u1eafn ch\u1eafc c\u1ee7a xi m\u0103ng bao g\u1ed3m ba giai \u0111o\u1ea1n:<\/p>\n

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  • Ho\u00e0 tan: Kho\u00e1ng c\u1ee7a clinker ph\u1ea3n \u1ee9ng v\u1edbi n\u01b0\u1edbc, t\u1ea1o s\u1ea3n ph\u1ea9m m\u1edbi.<\/li>\n
  • Ho\u00e1 keo: S\u1ea3n ph\u1ea9m m\u1edbi t\u1ed3n t\u1ea1i \u1edf d\u1ea1ng keo.<\/li>\n
  • K\u1ebft tinh: S\u1ea3n ph\u1ea9m k\u1ebft tinh, t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 xi m\u0103ng.<\/li>\n<\/ul>\n

    Trong qu\u00e1 tr\u00ecnh n\u00e0y, c\u00e1c ph\u1ea3n \u1ee9ng ho\u00e1 h\u1ecdc v\u00e0 v\u1eadt l\u00fd ph\u1ee9c t\u1ea1p di\u1ec5n ra, t\u1eeb h\u1ed3 d\u1ebbo th\u00e0nh \u0111\u00e1 c\u1ee9ng.<\/p>\n

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    Vai tr\u00f2 quan tr\u1ecdng c\u1ee7a ph\u1ea3n \u1ee9ng thu\u1ef7 ho\u00e1<\/h2>\n
      \n
    • H\u00ecnh th\u00e0nh c\u1ea5u tr\u00fac: Ph\u1ea3n \u1ee9ng thu\u1ef7 ho\u00e1 t\u1ea1o ra c\u00e1c tinh th\u1ec3 canxi hydroxit (CH) v\u00e0 gel C-S-H (canxi silicat hydrate) li\u00ean k\u1ebft c\u00e1c h\u1ea1t xi m\u0103ng l\u1ea1i v\u1edbi nhau, t\u1ea1o th\u00e0nh m\u1ed9t m\u1ea1ng l\u01b0\u1edbi r\u1eafn ch\u1eafc.<\/li>\n
    • Ph\u00e1t tri\u1ec3n c\u01b0\u1eddng \u0111\u1ed9: C\u00e0ng nhi\u1ec1u kho\u00e1ng ch\u1ea5t trong xi m\u0103ng tham gia ph\u1ea3n \u1ee9ng thu\u1ef7 ho\u00e1, c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a b\u00ea t\u00f4ng c\u00e0ng cao.<\/li>\n
    • \u0110\u1ed9 b\u1ec1n l\u00e2u d\u00e0i: C\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a ph\u1ea3n \u1ee9ng thu\u1ef7 ho\u00e1 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu v\u1edbi m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n l\u00e2u d\u00e0i cho c\u00f4ng tr\u00ecnh.<\/li>\n<\/ul>\n
      \n

      C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ph\u1ea3n \u1ee9ng thu\u1ef7 ho\u00e1<\/h2>\n
        \n
      • Lo\u1ea1i xi m\u0103ng: Lo\u1ea1i xi m\u0103ng kh\u00e1c nhau c\u00f3 th\u00e0nh ph\u1ea7n kho\u00e1ng ch\u1ea5t kh\u00e1c nhau, d\u1eabn \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 v\u00e0 m\u1ee9c \u0111\u1ed9 thu\u1ef7 ho\u00e1 kh\u00e1c nhau.<\/li>\n
      • Nhi\u1ec7t \u0111\u1ed9: Nhi\u1ec7t \u0111\u1ed9 cao \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh thu\u1ef7 ho\u00e1, nh\u01b0ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n l\u00e2u d\u00e0i c\u1ee7a b\u00ea t\u00f4ng.<\/li>\n
      • N\u01b0\u1edbc: L\u01b0\u1ee3ng n\u01b0\u1edbc \u0111\u1ee7 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc t\u1ed1t l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ph\u1ea3n \u1ee9ng thu\u1ef7 ho\u00e1 di\u1ec5n ra hi\u1ec7u qu\u1ea3.<\/li>\n<\/ul>\n
        \n

        K\u1ef9 thu\u1eadt \u1ee9ng d\u1ee5ng<\/h2>\n

        Hi\u1ec3u r\u00f5 v\u1ec1 ph\u1ea3n \u1ee9ng thu\u1ef7 ho\u00e1 gi\u00fap k\u1ef9 s\u01b0 x\u00e2y d\u1ef1ng l\u1ef1a ch\u1ecdn lo\u1ea1i xi m\u0103ng ph\u00f9 h\u1ee3p, thi\u1ebft k\u1ebf c\u1ea5p ph\u1ed1i b\u00ea t\u00f4ng t\u1ed1i \u01b0u v\u00e0 thi c\u00f4ng \u0111\u00fang k\u1ef9 thu\u1eadt \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c ch\u1ea5t l\u01b0\u1ee3ng c\u00f4ng tr\u00ecnh t\u1ed1t nh\u1ea5t.<\/p>\n

        \n

        K\u1ebft lu\u1eadn<\/h2>\n

        Ph\u1ea3n \u1ee9ng thu\u1ef7 ho\u00e1 l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng khoa h\u1ecdc k\u1ef3 di\u1ec7u, \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c t\u1ea1o ra s\u1ee9c m\u1ea1nh phi th\u01b0\u1eddng c\u1ee7a xi m\u0103ng. Hi\u1ec3u r\u00f5 v\u1ec1 qu\u00e1 tr\u00ecnh n\u00e0y gi\u00fap ch\u00fang ta \u1ee9ng d\u1ee5ng xi m\u0103ng hi\u1ec7u qu\u1ea3, ki\u1ebfn t\u1ea1o nh\u1eefng c\u00f4ng tr\u00ecnh b\u1ec1n v\u1eefng tr\u01b0\u1eddng t\u1ed3n v\u1edbi th\u1eddi gian.<\/p>\n

        H\u00e3y chia s\u1ebb b\u00e0i vi\u1ebft n\u00e0y \u0111\u1ec3 c\u00f9ng lan t\u1ecfa ki\u1ebfn th\u1ee9c khoa h\u1ecdc v\u00e0 ni\u1ec1m \u0111am m\u00ea x\u00e2y d\u1ef1ng!<\/em><\/strong><\/p>","protected":false},"excerpt":{"rendered":"

        Kh\u00e1m Ph\u00e1 Khoa H\u1ecdc \u0110\u1eb1ng Sau Xi M\u0103ng: Ph\u1ea3n \u1ee8ng Thu\u1ef7 Ho\u00e1 K\u1ef3 Di\u1ec7u! \u00a0Xi m\u0103ng, v\u1eadt li\u1ec7u t\u01b0\u1edfng ch\u1eebng \u0111\u01a1n gi\u1ea3n nh\u01b0ng \u1ea9n ch\u1ee9a s\u1ee9c m\u1ea1nh phi th\u01b0\u1eddng, l\u00e0 n\u1ec1n t\u1ea3ng cho m\u1ecdi c\u00f4ng tr\u00ecnh ki\u1ebfn tr\u00fac. B\u00ed quy\u1ebft n\u1eb1m \u1edf ph\u1ea3n \u1ee9ng thu\u1ef7 ho\u00e1 – m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng khoa h\u1ecdc k\u1ef3 di\u1ec7u, bi\u1ebfn […]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[504,403],"tags":[],"yst_prominent_words":[],"acf":[],"_links":{"self":[{"href":"https:\/\/pcecatlam.vn\/en\/wp-json\/wp\/v2\/posts\/9268"}],"collection":[{"href":"https:\/\/pcecatlam.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pcecatlam.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pcecatlam.vn\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/pcecatlam.vn\/en\/wp-json\/wp\/v2\/comments?post=9268"}],"version-history":[{"count":9,"href":"https:\/\/pcecatlam.vn\/en\/wp-json\/wp\/v2\/posts\/9268\/revisions"}],"predecessor-version":[{"id":9325,"href":"https:\/\/pcecatlam.vn\/en\/wp-json\/wp\/v2\/posts\/9268\/revisions\/9325"}],"wp:attachment":[{"href":"https:\/\/pcecatlam.vn\/en\/wp-json\/wp\/v2\/media?parent=9268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pcecatlam.vn\/en\/wp-json\/wp\/v2\/categories?post=9268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pcecatlam.vn\/en\/wp-json\/wp\/v2\/tags?post=9268"},{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/pcecatlam.vn\/en\/wp-json\/wp\/v2\/yst_prominent_words?post=9268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}