山东建筑大学学报2025，Vol.40Issue(5)：107-113,7.DOI:10.12077/sdjz.2025.05.015
工业废弃物替代碳酸钙对石灰石煅烧黏土水泥影响研究
Study on the effect of industrial wastes replacing calcium carbonate in limestone calcined clay cement
摘要
Abstract
The study on the feasibility of replacing calcium carbonate in Limestone Calcined Clay Cement(LC3)is helpful to promote the resource utilization of industrial waste and reduce energy consumption.LC3 was prepared by substituting calcium carbonate with fly ash,coal gangue powder,waste concrete powder and mineral powder at replacement levels of 50%and 100%.The effects of these substitutions on the fluidity,water absorption and mechanical strength of LC3 was studied by means of compressive and flexural strength tests,water absorption tests and particle-size analysis.The results showed that,after 90 days of curing,the fluidity of LC3 mortar prepared by 50%mineral powder instead of calcium carbonate was significantly improved,and the compressive and flexural strengths reached 44.72 and 11.00 MPa,respectively,and the water absorption rate decreased to 6.3%.It is feasible to prepare LC3 with mineral powder as a substitute for calcium carbonate.The compressive and flexural strengths of LC3 in which calcium carbonate was replaced by fly ash had little change,and the fluidity,water absorption,compressive and flexural strengths of LC3 replaced by coal gangue powder and waste concrete powder showed poor performance,so they were not suitable to be used as a substitute for calcium carbonate.关键词
石灰石煅烧黏土水泥/替代/碳酸钙/工业废弃物/矿粉Key words
limestone calcined clay cement/replace/calcium carbonate/industry waste/mineral powder分类
建筑与水利引用本文复制引用
付毅伟,隋玉武,孟祥龙,张绍琪,张玲煜..工业废弃物替代碳酸钙对石灰石煅烧黏土水泥影响研究[J].山东建筑大学学报,2025,40(5):107-113,7.基金项目
山东省重点研发计划项目(GG201809190157) （GG201809190157）
