玄武岩纤维对橡胶再生混凝土抗冻性能的影响  

Basalt fiber's effect on the frost resistance of rubber recycled concrete

作　　者：陈爱玖[1] 陈萌[1] 王静[1] 汪志昊[1] 范程程[1] 王大辉 李冯畅 

机构地区：[1]华北水利水电大学,河南郑州450011 [2]河南省水利科学研究院,河南郑州450003 [3]河南大学,河南开封475001

出　　处：《混凝土》2016年第5期62-65,共4页Concrete

基　　金：国家自然科学基金资助项目(51179064;11372099);河南省科技厅科技攻关资助项目(132102210178);河南省高校科技创新团队支持计划(15IRTSTHN028);郑州市生态建筑材料重点实验室项目(201311)

摘　　要：通过冻融循环试验研究橡胶颗粒掺量10%、再生粗骨料掺量40%及玄武岩纤维掺量为0、2、4 kg/m^3对混凝土抗冻性能的影响规律,并对影响机理进行分析。结果表明:橡胶混凝土抗冻性能明显优于普通混凝土,再生混凝土的抗冻性能低于普通混凝土,掺入玄武岩纤维有利于混凝土抗冻性,混凝土相对动弹性模量的下降幅度趋于平缓,经150次冻融循环后,普通混凝土、再生混凝土、橡胶混凝土、橡胶再生混凝土的相对动弹性模量依次为87.2%、78.1%、94.6%、88.5%。The experiment of quickly freezing - thawing was carried out to study the behavior of frost resistance of concrete effected by 10% rubber particle,40% recycled aggregates with the different basalt fiber contents of 0,2,4 kg/m3. The results show that the ability of rubber recycled concrete frost resistance is superior to plain concrete, that of recycled concrete is worse than plain concrete, and basalt fi- ber is good for concrete frost resistance, which can slow the relative dynamic elastic modulus of concrete down.After 150 freezing tha- wing cycles, the relative dynamic elastic modulus of plain concrete, recycled concrete, rubber concrete and rubber recycled concrete de- creased to 87.2% ,78.1% ,94.6% ,88.5%.

关 键 词：玄武岩纤维 橡胶再生混凝土 抗冻性能 

分 类 号：TU528.041[建筑科学—建筑技术科学]