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A platform for research: civil engineering, architecture and urbanism
Low-carbon concrete for cement kiln tail flue gas curing and preparation method thereof
The invention discloses low-carbon concrete for cement kiln tail flue gas curing. The low-carbon concrete comprises the following components in parts by weight: 10-50 parts of low-carbon cement, 5-25 parts of a calcium-rich cementing material, 1-3 parts of an auxiliary material, 85-110 parts of coarse aggregate, 60-100 parts of fine aggregate, 0.5-1 part of an additive and 12-20 parts of water, the auxiliary agent material comprises Na2CO3 and Na2SiO3, and the auxiliary agent material comprises Na2CO3 Wherein all water is firstly mixed with part of the calcium-rich cementing material, CO2 is introduced for pre-carbonization to obtain a pre-carbonated solution, and then the pre-carbonated solution is mixed with other raw materials. Nano calcium carbonate generated in situ is uniformly introduced into the concrete through a pre-carbonation technology, and then a blank is subjected to step-by-step carbonization curing by using cement kiln tail flue gas to prepare a low-carbon concrete finished product; good mechanical properties, durability and the like can be considered, meanwhile, remarkable economic and environmental benefits are achieved, and the method is suitable for large-scale application and popularization.
本发明公开了一种水泥窑尾烟气养护的低碳混凝土，各组分及其所占重量份数包括：低碳水泥10～50份，富钙胶凝材料5～25份，助剂材料1～3份，粗骨料85～110份，细骨料60～100份，外加剂0.5～1份，水12～20份；所述助剂材料包括Na2CO3和Na2SiO3；其中，全部用水首先与部分富钙胶凝材料混合，通入CO2进行预碳化，得预碳酸化溶液，再与其他原料拌合。本发明通过预碳酸化技术在混凝土内部均匀引入原位生成的纳米碳酸钙，然后利用水泥窑尾烟气对坯体进行分步碳化养护制得低碳混凝土成品；可兼顾良好的力学性能和耐久性能等，同时具有显著的经济和环境效益，适合大规模推广应用。
Low-carbon concrete for cement kiln tail flue gas curing and preparation method thereof
The invention discloses low-carbon concrete for cement kiln tail flue gas curing. The low-carbon concrete comprises the following components in parts by weight: 10-50 parts of low-carbon cement, 5-25 parts of a calcium-rich cementing material, 1-3 parts of an auxiliary material, 85-110 parts of coarse aggregate, 60-100 parts of fine aggregate, 0.5-1 part of an additive and 12-20 parts of water, the auxiliary agent material comprises Na2CO3 and Na2SiO3, and the auxiliary agent material comprises Na2CO3 Wherein all water is firstly mixed with part of the calcium-rich cementing material, CO2 is introduced for pre-carbonization to obtain a pre-carbonated solution, and then the pre-carbonated solution is mixed with other raw materials. Nano calcium carbonate generated in situ is uniformly introduced into the concrete through a pre-carbonation technology, and then a blank is subjected to step-by-step carbonization curing by using cement kiln tail flue gas to prepare a low-carbon concrete finished product; good mechanical properties, durability and the like can be considered, meanwhile, remarkable economic and environmental benefits are achieved, and the method is suitable for large-scale application and popularization.
本发明公开了一种水泥窑尾烟气养护的低碳混凝土，各组分及其所占重量份数包括：低碳水泥10～50份，富钙胶凝材料5～25份，助剂材料1～3份，粗骨料85～110份，细骨料60～100份，外加剂0.5～1份，水12～20份；所述助剂材料包括Na2CO3和Na2SiO3；其中，全部用水首先与部分富钙胶凝材料混合，通入CO2进行预碳化，得预碳酸化溶液，再与其他原料拌合。本发明通过预碳酸化技术在混凝土内部均匀引入原位生成的纳米碳酸钙，然后利用水泥窑尾烟气对坯体进行分步碳化养护制得低碳混凝土成品；可兼顾良好的力学性能和耐久性能等，同时具有显著的经济和环境效益，适合大规模推广应用。
Low-carbon concrete for cement kiln tail flue gas curing and preparation method thereof
一种水泥窑尾烟气养护的低碳混凝土及其制备方法
LI YEQING (author) / ZHANG HENG (author) / CHEN CHAO (author) / YU SONGBAI (author) / REN ZHENG (author) / WEI YANG (author) / QIN JIEFA (author) / JIN SHENG (author)
2024-02-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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