Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Application of calcium-sodium early strength agent in solid waste-based cementing material
The invention relates to the technical field of solid waste resource comprehensive utilization and building materials, in particular to application of a calcium-sodium early strength agent in a solid waste-based cementing material. Specifically, the calcium-sodium early strength agent is calcium formate, calcium chloride, sodium sulfate, sodium carbonate or sodium silicate; the solid waste-based cementing material is prepared from the following raw materials in parts by mass: 20-40 parts of steel slag, 20-60 parts of mineral slag and 12-20 parts of gypsum. Due to the fact that the passive hydration process of the solid waste-based cementing material is greatly different from that of a cement system and the action effect of various early strength agents is unknown, the calcium-sodium early strength agent suitable for the solid waste-based cementing material is selected, the 1d strength of the cementing material can be improved by 150% to the maximum and reaches or even exceeds the strength of the cement at the same age, and the calcium-sodium early strength agent is suitable for the solid waste-based cementing material. The early-stage mold removal requirement is met, the mold turnover rate is increased, and the biggest problem of application and popularization of the solid waste-based cementing material is solved.
本发明涉及固体废弃物资源化综合利用和建筑材料技术领域，尤其涉及钙钠早强剂在固废基胶凝材料中的应用。具体的，所述钙钠早强剂为甲酸钙、氯化钙、硫酸钠、碳酸钠或硅酸钠；所述固废基胶凝材料，由包含如下质量份数的原料制备得到：钢渣20～40份、矿渣20～60份、石膏12～20份。因固废基胶凝材料被动水化过程与水泥体系差异巨大，多种早强剂作用效果不明，因此选出适合固废基胶凝材料的钙钠早强剂，采用本发明筛选出来的早强剂，胶凝材料的1d强度最高可提高150％，达到甚至超越水泥同龄期强度，满足早期拆模需求，提高模具周转率，解决固废基胶凝材料推广应用的最大难题。
Application of calcium-sodium early strength agent in solid waste-based cementing material
The invention relates to the technical field of solid waste resource comprehensive utilization and building materials, in particular to application of a calcium-sodium early strength agent in a solid waste-based cementing material. Specifically, the calcium-sodium early strength agent is calcium formate, calcium chloride, sodium sulfate, sodium carbonate or sodium silicate; the solid waste-based cementing material is prepared from the following raw materials in parts by mass: 20-40 parts of steel slag, 20-60 parts of mineral slag and 12-20 parts of gypsum. Due to the fact that the passive hydration process of the solid waste-based cementing material is greatly different from that of a cement system and the action effect of various early strength agents is unknown, the calcium-sodium early strength agent suitable for the solid waste-based cementing material is selected, the 1d strength of the cementing material can be improved by 150% to the maximum and reaches or even exceeds the strength of the cement at the same age, and the calcium-sodium early strength agent is suitable for the solid waste-based cementing material. The early-stage mold removal requirement is met, the mold turnover rate is increased, and the biggest problem of application and popularization of the solid waste-based cementing material is solved.
本发明涉及固体废弃物资源化综合利用和建筑材料技术领域，尤其涉及钙钠早强剂在固废基胶凝材料中的应用。具体的，所述钙钠早强剂为甲酸钙、氯化钙、硫酸钠、碳酸钠或硅酸钠；所述固废基胶凝材料，由包含如下质量份数的原料制备得到：钢渣20～40份、矿渣20～60份、石膏12～20份。因固废基胶凝材料被动水化过程与水泥体系差异巨大，多种早强剂作用效果不明，因此选出适合固废基胶凝材料的钙钠早强剂，采用本发明筛选出来的早强剂，胶凝材料的1d强度最高可提高150％，达到甚至超越水泥同龄期强度，满足早期拆模需求，提高模具周转率，解决固废基胶凝材料推广应用的最大难题。
Application of calcium-sodium early strength agent in solid waste-based cementing material
钙钠早强剂在固废基胶凝材料中的应用
JU YONGJIAN (Autor:in) / ZHANG SIQI (Autor:in) / NI WEN (Autor:in) / JIA SAINAN (Autor:in)
09.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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