硅酸盐通报2023，Vol.42Issue(12)：4183-4196,14.
母体混凝土强度对再生骨料及再生骨料混凝土性能影响研究进展
Research Progress on Influence of Parent Concrete Strength on Properties of Recycled Aggregate and Recycled Aggregate Concrete
摘要
Abstract
The use of recycled aggregate obtained from the crushing of construction solid waste can not only save natural sand and gravel resources,but also promote the recycling of construction solid waste.The quality of recycled aggregate determines the performance of recycled aggregate concrete.There are many factors affecting the quality of recycled aggregate,and the strength of parent concrete is one of the important influencing factors.The article takes strength of parent concrete as the research object,and summarizes its influence law on the properties of recycled aggregate and recycled aggregate concrete.Different strengths of parent concrete affect the quality and content of recycled aggregate adhesive mortar,which in turn affects the properties of recycled aggregate and recycled aggregate concrete.When the strength of parent concrete increases,the quality and content of adhesive mortar are improved.While the quality of adhesive mortar is improved,the properties of recycled aggregate and recycled aggregate concrete are strengthened.The increase in the content of adhesive mortar deteriorates the physical properties of recycled aggregate,increases the porosity and water absorption of recycled aggregate,but strengthens the internal curing effect of concrete,which contributes to the mechanical properties of recycled aggregate concrete.Using microscopic analysis,it is found that different strength of parent concrete make a difference in the content of hydration products in the interfacial transition zone of recycled aggregate concrete,which has an impact on the mechanical properties of concrete.The article provides a theoretical basis for further grading and utilization of recycled aggregate.关键词
再生骨料/再生骨料混凝土/母体混凝土强度/物理性能/力学强度Key words
recycled aggregate/recycled aggregate concrete/parent concrete strength/physical property/mechanical strength分类
建筑与水利引用本文复制引用
陈春红,陈云春,王磊,俞江,朱平华,李海朝,徐凌杰,王辞鉴,乔森..母体混凝土强度对再生骨料及再生骨料混凝土性能影响研究进展[J].硅酸盐通报,2023,42(12):4183-4196,14.基金项目
国家自然科学基金(52108190) （52108190）
江苏省研究生科研创新计划项目(KYCX23_3097) （KYCX23_3097）
常州大学大学生创新创业训练计划项目(202310292326B) （202310292326B）
枣庄市自主创新及成果转化计划(2022GH34) （2022GH34）
