纤维和防裂剂对混凝土性能影响的试验研究  

Test Research on the Impact of Adding Fiber and Anti-cracking Agent on Concrete Character

作　　者：赵晋 ZHAO Jin

机构地区：[1]山西省水利水电科学研究院

出　　处：《山西水利科技》2019年第4期32-34,共3页Shanxi Hydrotechnics

摘　　要：针对设计要求C25W8F200的混凝土,在实验室配制了基准组、掺聚丙烯纤维、掺VF防裂剂的三组混凝土,分别对拌和物坍落度,含气量,不同龄期的抗压强度、劈裂抗拉强度、轴向抗拉强度,抗渗抗冻性能进行了测试,并进行了对比,结果显示掺VF防裂剂混凝土的抗压强度、劈裂抗拉强度和轴向抗拉强度均大于另外两组,可减少裂缝的产生。三组的抗渗抗冻等级均满足设计要求。According to the design requirement of C25 W8 F200 concrete,three groups of concrete including base group,polypropylene fiber and VF anti-cracking agent were prepared in the laboratory. The slump,air content,compressive strength,splitting tensile strength,axial tensile strength,impermeability and frost resistance of mixtures were tested respectively. By comparison,the results show that the compressive strength,splitting tensile strength and axial tensile strength of concrete with VF anti-cracking agent are greater than those of the other two groups,which can reduce the occurrence of cracks. The anti-seepage and anti-freezing grades of the three groups all meet the design requirements.

关 键 词：聚丙烯纤维 防裂剂 抗压强度 抗拉强度 抗渗抗冻 

分 类 号：TU528.572[建筑科学—建筑技术科学]