硅酸盐通报2026，Vol.45Issue(1)：40-46,7.DOI:10.16552/j.cnki.issn1001-1625.2025.0721
预养护对硅钙渣复合蒸压加气混凝土宏观性能与微观结构的影响
Influence of Pre-Curing on Macroscopic Properties and Microstructure of Silicon Calcium Slag Composite Autoclaved Aerated Concrete
摘要
Abstract
In this paper,silicon calcium slag,slag,and desulfurization gypsum were used as the main raw materials.By adjusting the process parameters such as fresh slurry temperature,pre-curing temperature and pre-curing time,the influence of the preparation process of silicon calcium slag composite autoclaved aerated concrete on dry density,compressive strength,and microstructure was studied.The results show that with the increase of fresh slurry temperature,the compressive strength of the test block shows a trend of increasing first and then decreasing,reaching a peak at 45℃,an increase of 96.3%compared to 25℃.With the increase of pre-curing temperature,the compressive strength of the test block shows a trend of increasing first and then decreasing.When the pre-curing temperature is 62.5℃,the compressive strength increases by 19.6%compared to the 52.5℃group.When the pre-curing time is 8 h,the tobermorite is arranged in a large leaf like orderly manner,and the test block reaches the A05 strength level.If the pre-curing time is too short(<8 h),it will cause uneven distribution of the main hydration product tobermorite.If the pre-curing time is too long(>8 h),it will cause interface degradation.By optimizing the process parameters(fresh slurry temperature of 45℃,pre-curing temperature of 62.5℃,pre-curing time of 8 h),the mechanical properties and pore uniformity of silicon calcium slag composite autoclaved aerated concrete can be synergistically improved,providing theoretical support for the industrial application of calcium silicate slag building materials.关键词
硅钙渣/蒸压加气混凝土/预养护/力学性能/微观结构Key words
silicon calcium slag/autoclaved aerated concrete/pre-curing/mechanical property/microstructure分类
建筑与水利引用本文复制引用
梁新星,张敬申,王朝胜,梁李归祖,刘泽,张通,朱颖灿..预养护对硅钙渣复合蒸压加气混凝土宏观性能与微观结构的影响[J].硅酸盐通报,2026,45(1):40-46,7.基金项目
国家自然科学基金区域创新联合基金(U20A20324) （U20A20324）
