Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Carbon-sequestration early-strength clinker-free low-carbon cementing material and use method thereof
The invention relates to a carbon-sequestration early-strength clinker-free low-carbon cementing material and a using method thereof.The raw materials comprise calcined clay and a calcium hydroxide component, and the mass ratio of the calcined clay to the calcium hydroxide component is (7-5): (3-5); when in use, the calcined clay and the calcium hydroxide component are taken in proportion and added into a stirrer to be mixed, and a gelling component is obtained; adding water and a water reducing agent into the gelling component, mixing, sealing a stirrer, and introducing CO2 gas into the stirrer under a stirring condition; stirring is stopped after uniform mixing, and meanwhile, CO2 gas is stopped from being introduced, so that a mixture is obtained; and pouring and molding the mixture, and removing the mold and maintaining after the mixture is condensed. The calcium hydroxide component in the raw materials and the calcined clay are subjected to a pozzolanic reaction to generate C-A-S-H gel and other products, and a strength source can be continuously provided for the low-carbon clinker-free cementing material and corresponding products; and by virtue of a mixing mode of introducing CO2 while stirring, relatively excellent early strength development is realized.
本发明涉及一种固碳早强无熟料低碳胶凝材料及其使用方法，原料包括煅烧黏土和氢氧化钙质组分，煅烧黏土与氢氧化钙质组分的质量比为(7～5)：(3～5)；使用时，按比例取煅烧黏土及氢氧化钙质组分加入搅拌机中混合，得到胶凝组分；向胶凝组分中加入水和减水剂，混合后将搅拌机密封，在搅拌条件下向搅拌机中通入CO2气体；混合均匀后停止搅拌，同时停止通入CO2气体，得到拌合物；将拌合物浇筑成型，凝结后拆模养护即可。本发明原料中氢氧化钙质组分同煅烧黏土发生火山灰反应生成C‑A‑S‑H凝胶等产物，能够为该低碳无熟料胶凝材料及相应制品持续提供强度来源；通过边搅拌边通入CO2的拌合方式，实现了较为优异的早期强度发展。
Carbon-sequestration early-strength clinker-free low-carbon cementing material and use method thereof
The invention relates to a carbon-sequestration early-strength clinker-free low-carbon cementing material and a using method thereof.The raw materials comprise calcined clay and a calcium hydroxide component, and the mass ratio of the calcined clay to the calcium hydroxide component is (7-5): (3-5); when in use, the calcined clay and the calcium hydroxide component are taken in proportion and added into a stirrer to be mixed, and a gelling component is obtained; adding water and a water reducing agent into the gelling component, mixing, sealing a stirrer, and introducing CO2 gas into the stirrer under a stirring condition; stirring is stopped after uniform mixing, and meanwhile, CO2 gas is stopped from being introduced, so that a mixture is obtained; and pouring and molding the mixture, and removing the mold and maintaining after the mixture is condensed. The calcium hydroxide component in the raw materials and the calcined clay are subjected to a pozzolanic reaction to generate C-A-S-H gel and other products, and a strength source can be continuously provided for the low-carbon clinker-free cementing material and corresponding products; and by virtue of a mixing mode of introducing CO2 while stirring, relatively excellent early strength development is realized.
本发明涉及一种固碳早强无熟料低碳胶凝材料及其使用方法，原料包括煅烧黏土和氢氧化钙质组分，煅烧黏土与氢氧化钙质组分的质量比为(7～5)：(3～5)；使用时，按比例取煅烧黏土及氢氧化钙质组分加入搅拌机中混合，得到胶凝组分；向胶凝组分中加入水和减水剂，混合后将搅拌机密封，在搅拌条件下向搅拌机中通入CO2气体；混合均匀后停止搅拌，同时停止通入CO2气体，得到拌合物；将拌合物浇筑成型，凝结后拆模养护即可。本发明原料中氢氧化钙质组分同煅烧黏土发生火山灰反应生成C‑A‑S‑H凝胶等产物，能够为该低碳无熟料胶凝材料及相应制品持续提供强度来源；通过边搅拌边通入CO2的拌合方式，实现了较为优异的早期强度发展。
Carbon-sequestration early-strength clinker-free low-carbon cementing material and use method thereof
一种固碳早强无熟料低碳胶凝材料及其使用方法
HU CHUANLIN (Autor:in) / DONG YEMIN (Autor:in) / QIAN XIONG (Autor:in) / LIU-YE DONGYANG (Autor:in) / SHEN KUNJIE (Autor:in)
30.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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