[1]熊剑平,申爱琴..聚合物水泥混凝土改性机理研究[J].郑州大学学报(工学版),2006,27(03):15-20.[doi:10.3969/j.issn.1671-6833.2006.03.004]
 XIONG Jianping,Shen Aiqin.Study on modification mechanism of polymer cement concrete[J].Journal of Zhengzhou University (Engineering Science),2006,27(03):15-20.[doi:10.3969/j.issn.1671-6833.2006.03.004]
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聚合物水泥混凝土改性机理研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
27
期数:
2006年03期
页码:
15-20
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:

Study on modification mechanism of polymer cement concrete
作者:
熊剑平申爱琴.
长安大学特殊地区公路工程教育部重点实验室,陕西,西安,710064, 长安大学特殊地区公路工程教育部重点实验室,陕西,西安,710064
Author(s):
XIONG Jianping; Shen Aiqin
关键词:
聚合物水泥混凝土 复合式路面 SEM 差热分析 孔结构 改性机理
Keywords:
DOI:
10.3969/j.issn.1671-6833.2006.03.004
文献标志码:
A
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.
Abstract:
The modification mechanism of polymer cement concrete (PCC) was analyzed by differential thermal analysis, SEM electron microscopy and pore structure tests, and verified by combining indoor macro road performance test and test road drilling test. The results show that with the increase of polymer content, the amount of Ca(OH)2 in cement hydrate decreases, the pore structure is improved, the polymer film tends to be continuous and complete and intertwined with cement hydrate to form a network structure, the internal defects of concrete are reduced, and gradually transformed into a continuous dense structure, accompanied by a large increase in flexibility. The indoor macroscopic test and on-site test also confirmed the following modification mechanism: due to the incorporation of polymer to improve the microstructure of cement concrete, the pavement performance of concrete was significantly improved, and the composite pavement performance was excellent.

更新日期/Last Update: 1900-01-01