摘要
为研究PVA-SHCC在不同水分含量下的断裂能及应变硬化,对全干燥、半干燥(RH=75%重新润湿)和水浸泡PVA-SHCC进行了三点弯曲与四点弯曲试验。实验表明:PVA-SHCC弯曲韧性受温度影响显著;随水分含量的增加开裂应力减小,变形增大;干燥后的PVA-ECC断裂能随着水分含量的增加逐渐增大。
In order to study the fracture energy and strain hardening of PVA-SHCC in different moisture content, three-point bending test and four-point bending test for total dry, semi-dry（ RH = 75% moisten again）and water soaked PVA-SHCC were made. The test showed that： PVA-SHCC bend ductility is remarkably influenced by temperature, the cracking stress reduces and deformation grows with the increase of moisture content, and the PVA-SHCC fracture energy after drying grows gradually with the increase of moisture content.
出处
《工程建设》
2008年第4期9-12,共4页
Engineering Construction
