- 目录
- 建筑石膏与胶凝材料
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绿色韧性水泥基材料腐蚀及自愈合性能研究
作者：王怀成，鲍文博，李林凤，王东旭
（沈阳工业大学 建筑与土木工程学院，辽宁 沈阳 110870）
摘要：针对绿色韧性水泥基材料（GTCC）进行硫酸盐干湿循环和湿循环腐蚀试验，研究不同的水胶比和PVA纤维掺量对GTCC抗腐蚀性及自愈合性能的影响。结果表明：适宜掺量的PVA可以有效改善GTCC在干湿循环环境下的抗硫酸盐腐蚀性能，并且提高湿循环硫酸盐环境下GTCC的自愈合性能；水胶比的增大以及腐蚀周期的延长均会使GTCC的抗硫酸盐腐蚀性能降低。
关键词：绿色韧性水泥基材料；PVA纤维；水胶比；硫酸盐腐蚀；抗压强度耐蚀系数；自愈合
中图分类号：TU528 文献标识码：A 文章编号：1001-702X（2018）10-0053-03
Study on corrosion and self-healing properties of green toughness cementitious composites
WANG Huaicheng，BAO Wenbo，LI Linfeng，WANG Dongxu
（School of Architecture and Civil Engineering，Shenyang University of Technology，Shenyang 110870，China）
Abstract：The corrosion resistance performance of green toughness cementitious composites（GTCC） was studied through sulfate dry-wet circulation and wet cycle corrosion tests，in order to study the effect of different water cement ratio and PVA fiber content on the corrosion resistance and self-healing properties of the new material. The results show that the use of a reasonable volume content of PVA fiber in the material can effectively improve the sulfate corrosion resistance performance under the dry-wet circulation environment and improve the self-healing properties under the wet cycle sulfate environment of the material. The increase of the water cement ratio and extension of corrosion cycle growth both will reduce the sulfate corrosion resistance performance of the material.
Key words：green toughening cementitious material，PVA fiber，water cement ratio，sulfate corrosion，compressive strength corrosion factors，self-healing