摘要
依据高沥灰比水泥乳化沥青砂浆(CA砂浆)的物理结构模型,基于颗粒增强聚合物基复合材料的相关理论,建立了CA砂浆抗压强度与组成参数的数学模型。结果表明:水泥-沥青胶凝材料(CA胶凝材料)中,水化产物对沥青的增强作用侧重于自身的整体含量,Piggott模型适合描述CA胶凝材料抗压强度与水化产物体积分数之间的关系。砂子对CA胶凝材料的增强作用侧重于自身的个体属性,Nielsen模型适合表征低强型CA砂浆抗压强度与砂子含量间的关系。经代入相关文献中的数据进行验证,所建模型具有良好的普适性。
According to the physical structure model of low strength cement asphalt mortar(CA mortar),in reference to the particulate reinforcement theo-ries for polymer composites,the quantitative relationship between compressive strength and composition parameters of CA mortar was obtained.Results show that in cement asphalt binder(CAB),the reinforcement effect of hydration product on asphalt focuses on its overall content,and thus Piggott model is suitable for describing the relationship between compressive strength and hydration products volume fraction of CAB.The enhancement effect of sand on CAB focuses on individual attributes,so Nielsen model is suitable for characterizing the relationship between compressive strength and sand content of CA mortar.Verified by the data in the relevant literature,the established model has good universality.
作者
田青
屈孟娇
祁帅
姚田帅
张苗
许鸽龙
邓德华
TIAN Qing;QU Mengjiao;QI Shuai;YAO Tianshuai;ZHANG Miao;XU Gelong;DENG Dehua(Kaifeng Research Center for Engineering Repair and Material Recycle,Henan University,Kaifeng 475004,Henan,China;State Key Laboratory of Green Building Materials,Beijing 100024,China;School of Civil Engineering,Central South University,Changsha 410075,China)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2022年第22期244-248,共5页
Materials Reports
基金
绿色建筑材料国家重点实验室开放基金(2021GBM01)
河南省高等学校重点科研项目计划(22B560002)。
关键词
水泥乳化沥青砂浆
高沥灰比
抗压强度
配合比参数
cement asphalt mortar
high asphalt to cement ratio
compressive strength
mix proportion parameter
