玄武岩-聚丙烯混杂纤维混凝土抗冻性试验  

Experimental on frost resistance of basalt-Polypropylene hybrid fiber reinforced concrete

作　　者：赵兵兵[1] 贺晶晶[2] 王学志[2] 郑淑文[2] 

机构地区：[1]辽宁工业大学艺术设计与建筑学院,辽宁锦州121001 [2]辽宁工业大学土木建筑工程学院,辽宁锦州121001

出　　处：《辽宁工程技术大学学报（自然科学版）》2015年第12期1402-1407,共6页Journal of Liaoning Technical University (Natural Science)

基　　金：辽宁省教育厅基金项目(L2011103);辽宁省百千万人才千人层次基金项目(2011921059)

摘　　要：为研究混杂纤维混凝土抗冻性能,采用慢冻法对纤维掺加量为0.3%、0.6%、0.9%和1.2%的玄武岩纤维混凝土、聚丙烯纤维混凝土以及混杂质量比分别为1:1、1:2、2:1的玄武岩-聚丙烯混杂纤维混凝土进行50次、100次、150次冻融循环试验.通过分析其强度和质量损失率,得到各种纤维混凝土50次、100次、150次冻融循环条件下的强度和质量损失的规律,并找到了各种冻融条件下对强度损失和质量损失改善最佳的纤维掺量.研究表明,加入纤维增强了基体混凝土抗冻性;混杂纤维系列纤维对混凝土抗冻性能的改善优于单掺纤维系列.The frost resistance of hybrid fiber reinforced concrete （HFRC） was studied based on the slow freeze-thaw tests, in which the 50times, 100times and 150times freeze-thaw cycle tests were carried on the basalt fiber reinforced concrete, polypropylene fiber reinforced concrete and basalt-polypropylene fiber reinforced concrete with the fiber fraction at 0.3%, 0.6%, 0.9% and 1.2%, respectively. By analyzing the stress loss rate and the mass loss rate of these kinds of FRC, the rules of stress loss rate and mass loss rate for all the FRC under 50times, 100times and 150times freeze-thaw cycle were obtained. The fiber fractions of best performances for the stress loss rate and the mass loss rate of concrete under all cases were also obtained. The results show that adding fiber improves frost resistance of the concrete, and hybrid fiber series are better than single fiber series on performances for frost-resisting properties of the concrete.

关 键 词：玄武岩纤维 聚丙烯纤维 混杂纤维混凝土 冻融循环 纤维掺量 

分 类 号：TU528.572[建筑科学—建筑技术科学]