摘要
通过差热分析、SEM电镜和孔结构等微观性能试验,分析了聚合物水泥混凝土(PCC)的改性机理,并结合室内宏观路用性能试验和试验路钻孔检测对其进行了验证.结果表明:随着聚合物掺量的增加,水泥水化物中Ca(OH)2数量减少,孔结构得以改善,聚合物成膜趋于连续完整并与水泥水化物交织缠绕形成网状结构,混凝土内部缺陷减少,逐渐向一种连续密实的结构转化,并伴随着柔性的大幅度增长.室内宏观试验和现场检测也证实了以下改性机理:由于聚合物的掺入改善了水泥混凝土的微观结构,混凝土的路用性能得以显著提高,复合式路面使用性能优异.
The functional mechanism is discussed by the DTA,SEM and MIP with the confirmation of lab research and sample survey. The research indicates： the more the polymer is, the less added the Ca（OH）2 in the hydrated product is. Ands the pore structure is improved evidently. The polymer film tends to complete and interweave with hydrated product so the netted structure is formed and the concrete flexiblity is increased greatly. Lab research and pavement detection results also prove：when adding the polymer, the road performance of concrete is improved remarkably for the microcosmic structure.
出处
《郑州大学学报（工学版）》
CAS
2006年第3期15-20,共6页
Journal of Zhengzhou University（Engineering Science）
基金
广东省交通科技计划资助项目(050565)
