Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Auxiliary cementing material as well as preparation method and application thereof
The invention relates to the technical field of municipal engineering and building materials, in particular to an auxiliary cementing material and a preparation method and application thereof. The auxiliary cementing material comprises flash-sintered clay and mineralized regenerated micro powder, the preparation method of the flash-sintered clay comprises the following steps: pulping and filter-pressing engineering spoil to obtain a mud cake, sequentially carrying out wet filtration, centrifugation, drying and grinding on the mud cake to obtain clay powder, and calcining the clay powder; the preparation method of the mineralized regenerated micro-powder comprises the following steps: mineralizing regenerated micro-powder through a semi-dry method, drying and grinding to obtain the mineralized regenerated micro-powder, and the semi-dry method mineralization comprises the following specific steps: spraying a sodium hydroxide solution on the surface of the spread regenerated micro-powder for wetting, and then placing the regenerated micro-powder in an environment with the relative humidity of 80% RH to 100% RH for mineralization. The auxiliary cementing material can replace ordinary Portland cement in a large proportion, and the preparation method is low in energy consumption, short in time consumption and high in efficiency.
本发明涉及市政工程及建筑材料技术领域，具体涉及一种辅助胶凝材料及其制备方法和应用。该辅助胶凝材料包括闪烧粘土和矿化再生微粉；闪烧粘土的制备方法包括将工程弃土经制浆、压滤后得泥饼，将泥饼依次进行湿法过滤、离心、干燥和粉磨，得粘土粉末，再将粘土粉末进行煅烧；矿化再生微粉的制备方法包括将再生微粉经半干法矿化再经干燥、粉磨得矿化再生微粉，其中半干法矿化的具体步骤包括：向平摊开的再生微粉表面喷洒氢氧化钠溶液进行润湿，然后置于相对湿度为80％RH～100％RH的环境中进行矿化。该辅助胶凝材料可以大比例替代普通硅酸盐水泥，且制备方法耗能低、用时短、效率高。
Auxiliary cementing material as well as preparation method and application thereof
The invention relates to the technical field of municipal engineering and building materials, in particular to an auxiliary cementing material and a preparation method and application thereof. The auxiliary cementing material comprises flash-sintered clay and mineralized regenerated micro powder, the preparation method of the flash-sintered clay comprises the following steps: pulping and filter-pressing engineering spoil to obtain a mud cake, sequentially carrying out wet filtration, centrifugation, drying and grinding on the mud cake to obtain clay powder, and calcining the clay powder; the preparation method of the mineralized regenerated micro-powder comprises the following steps: mineralizing regenerated micro-powder through a semi-dry method, drying and grinding to obtain the mineralized regenerated micro-powder, and the semi-dry method mineralization comprises the following specific steps: spraying a sodium hydroxide solution on the surface of the spread regenerated micro-powder for wetting, and then placing the regenerated micro-powder in an environment with the relative humidity of 80% RH to 100% RH for mineralization. The auxiliary cementing material can replace ordinary Portland cement in a large proportion, and the preparation method is low in energy consumption, short in time consumption and high in efficiency.
本发明涉及市政工程及建筑材料技术领域，具体涉及一种辅助胶凝材料及其制备方法和应用。该辅助胶凝材料包括闪烧粘土和矿化再生微粉；闪烧粘土的制备方法包括将工程弃土经制浆、压滤后得泥饼，将泥饼依次进行湿法过滤、离心、干燥和粉磨，得粘土粉末，再将粘土粉末进行煅烧；矿化再生微粉的制备方法包括将再生微粉经半干法矿化再经干燥、粉磨得矿化再生微粉，其中半干法矿化的具体步骤包括：向平摊开的再生微粉表面喷洒氢氧化钠溶液进行润湿，然后置于相对湿度为80％RH～100％RH的环境中进行矿化。该辅助胶凝材料可以大比例替代普通硅酸盐水泥，且制备方法耗能低、用时短、效率高。
Auxiliary cementing material as well as preparation method and application thereof
一种辅助胶凝材料及其制备方法和应用
JIN YU (Autor:in) / ZHENG DAPENG (Autor:in) / DU SHANGBO (Autor:in) / SHAO NINGNING (Autor:in) / DONG ZHIJUN (Autor:in) / WANG YAOCHENG (Autor:in)
07.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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