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Modified aluminate cement, carbon sequestered phosphoaluminate cement and preparation methods of modified aluminate cement and carbon sequestered phosphoaluminate cement
The invention discloses modified aluminate cement, carbon sequestered phosphoaluminate cement and a preparation method, based on the mineral phase activity and hydration characteristics of aluminate cement, the mineral phase content of CA and CA2 in the aluminate cement and the (CA/CA2) ratio are regulated and controlled within the range of 0.5-1.5, mineral phase matching is optimized, and the engineering performance of the phosphoaluminate cement is improved. The phosphoaluminate cement obtained by compounding the modified aluminate cement, phosphate and an admixture has adjustable setting time, high early strength and later strength and excellent CO2 corrosion resistance, and a novel cementing material is provided for carbon sequestration. And meanwhile, the concrete also has excellent anti-permeability, sulfate corrosion resistance, high temperature resistance, freezing resistance and repairing performance.
本发明公开了一种改性铝酸盐水泥、碳封存磷铝酸盐水泥及制备方法，基于铝酸盐水泥矿相活性和水化特性，调控铝酸盐水泥中CA和CA2矿相含量和（CA/CA2）比例在0.5~1.5范围，优化矿相匹配，提升磷铝酸盐水泥的工程性能。本发明采用上述改性铝酸盐水泥、磷酸盐和掺合料复配得到的磷铝酸盐水泥，具有凝结时间可调，较强的早期强度和后期强度，以及优良的耐CO2侵蚀性能，为碳封存提供一种新型的胶凝材料。同时还具有优良的抗渗性、抗硫酸盐侵蚀性能、耐高温性能、优良的抗冻性能以及修补性能。
Modified aluminate cement, carbon sequestered phosphoaluminate cement and preparation methods of modified aluminate cement and carbon sequestered phosphoaluminate cement
The invention discloses modified aluminate cement, carbon sequestered phosphoaluminate cement and a preparation method, based on the mineral phase activity and hydration characteristics of aluminate cement, the mineral phase content of CA and CA2 in the aluminate cement and the (CA/CA2) ratio are regulated and controlled within the range of 0.5-1.5, mineral phase matching is optimized, and the engineering performance of the phosphoaluminate cement is improved. The phosphoaluminate cement obtained by compounding the modified aluminate cement, phosphate and an admixture has adjustable setting time, high early strength and later strength and excellent CO2 corrosion resistance, and a novel cementing material is provided for carbon sequestration. And meanwhile, the concrete also has excellent anti-permeability, sulfate corrosion resistance, high temperature resistance, freezing resistance and repairing performance.
本发明公开了一种改性铝酸盐水泥、碳封存磷铝酸盐水泥及制备方法，基于铝酸盐水泥矿相活性和水化特性，调控铝酸盐水泥中CA和CA2矿相含量和（CA/CA2）比例在0.5~1.5范围，优化矿相匹配，提升磷铝酸盐水泥的工程性能。本发明采用上述改性铝酸盐水泥、磷酸盐和掺合料复配得到的磷铝酸盐水泥，具有凝结时间可调，较强的早期强度和后期强度，以及优良的耐CO2侵蚀性能，为碳封存提供一种新型的胶凝材料。同时还具有优良的抗渗性、抗硫酸盐侵蚀性能、耐高温性能、优良的抗冻性能以及修补性能。
Modified aluminate cement, carbon sequestered phosphoaluminate cement and preparation methods of modified aluminate cement and carbon sequestered phosphoaluminate cement
一种改性铝酸盐水泥、碳封存磷铝酸盐水泥及制备方法
MA YING (author) / MENG QIANG (author) / WANG CHUNYU (author) / LU DUYOU (author) / YAO XIAO (author) / SHEN XIAODONG (author)
2025-01-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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