Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Negative carbon type cementing material and preparation method thereof
The invention discloses a negative carbon type cementing material, which is prepared from the following ingredients in parts by weight: 50 to 130 parts of vaterite type calcium carbonate, 0.2 to 2.5 parts of magnesium salt, 1.0 to 4.5 parts of strontium salt and 10 to 70 parts of water. The preparation method comprises the following steps: dissolving magnesium salt and strontium salt in water to prepare a mixed solution containing magnesium ions and strontium ions; adding vaterite type calcium carbonate into the mixed solution, and stirring for 1-3 minutes until a slurry state appears; the slurry is poured into a mold to be formed, and the negative carbon type cementing material is obtained through heating and curing; the vaterite type calcium carbonate is prepared by resource utilization of soluble calcium resources in industrial by-products, the gelling characteristic is obtained by directional regulation and control of crystal form transformation, and meanwhile, the negative carbon emission effect is achieved by chemical fixation of CO2; compared with a traditional cementing material, the method has the advantages that recycling of industrial by-products is achieved, meanwhile, CO2 is chemically fixed, the negative carbon emission effect is achieved, and contribution is made to environmental protection.
本发明公开了一种负碳型胶凝材料，组成按重量份数计如下：球霰石型碳酸钙50～130份，镁盐0.2～2.5份，锶盐1.0～4.5份，水10～70份；将镁盐和锶盐溶于水中，配制成含镁离子和锶离子的混合溶液；将球霰石型碳酸钙加入所述混合溶液，搅拌1～3min至出现浆体状态；将上述浆体浇筑至模具中成型，升温养护即得到负碳型胶凝材料；本发明资源化利用工业副产物中的可溶性钙资源制备球霰石型碳酸钙，通过定向调控晶型转变使其获得胶凝特性，同时通过化学固定CO2实现了负碳排放的效果；与传统胶凝材料相比，本发明在实现工业副产品资源化的同时，通过化学固定CO2，实现了负碳排放的效果，为环境保护做出了贡献。
Negative carbon type cementing material and preparation method thereof
The invention discloses a negative carbon type cementing material, which is prepared from the following ingredients in parts by weight: 50 to 130 parts of vaterite type calcium carbonate, 0.2 to 2.5 parts of magnesium salt, 1.0 to 4.5 parts of strontium salt and 10 to 70 parts of water. The preparation method comprises the following steps: dissolving magnesium salt and strontium salt in water to prepare a mixed solution containing magnesium ions and strontium ions; adding vaterite type calcium carbonate into the mixed solution, and stirring for 1-3 minutes until a slurry state appears; the slurry is poured into a mold to be formed, and the negative carbon type cementing material is obtained through heating and curing; the vaterite type calcium carbonate is prepared by resource utilization of soluble calcium resources in industrial by-products, the gelling characteristic is obtained by directional regulation and control of crystal form transformation, and meanwhile, the negative carbon emission effect is achieved by chemical fixation of CO2; compared with a traditional cementing material, the method has the advantages that recycling of industrial by-products is achieved, meanwhile, CO2 is chemically fixed, the negative carbon emission effect is achieved, and contribution is made to environmental protection.
本发明公开了一种负碳型胶凝材料，组成按重量份数计如下：球霰石型碳酸钙50～130份，镁盐0.2～2.5份，锶盐1.0～4.5份，水10～70份；将镁盐和锶盐溶于水中，配制成含镁离子和锶离子的混合溶液；将球霰石型碳酸钙加入所述混合溶液，搅拌1～3min至出现浆体状态；将上述浆体浇筑至模具中成型，升温养护即得到负碳型胶凝材料；本发明资源化利用工业副产物中的可溶性钙资源制备球霰石型碳酸钙，通过定向调控晶型转变使其获得胶凝特性，同时通过化学固定CO2实现了负碳排放的效果；与传统胶凝材料相比，本发明在实现工业副产品资源化的同时，通过化学固定CO2，实现了负碳排放的效果，为环境保护做出了贡献。
Negative carbon type cementing material and preparation method thereof
一种负碳型胶凝材料及其制备方法
LI YEQING (Autor:in) / WAN DAWEI (Autor:in) / RAO MEI (Autor:in) / JU XINJIANG (Autor:in) / YU SONGBAI (Autor:in)
10.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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