低水胶比下矿物掺合料对净浆流动性与流变性能的影响  

Influence of mineral admixtures on the flowability and rheological properties of cement paste at low water to binder ratio

作　　者：姜哲[1] 刘建忠[1] 刘加平[1] 

机构地区：[1]江苏博特新材料有限公司,江苏南京210008

出　　处：《混凝土》2011年第5期67-69,共3页Concrete

摘　　要：研究了矿物掺合料种类及掺量对低水胶比水泥浆流动性以及流变性能的影响。试验结果表明:在低水胶比条件下,矿粉和粉煤灰可以有效提高浆体流动性,随着掺量的增加,流动度增大;而硅灰作用相反。掺30%矿渣可降低浆体的屈服应力与塑性黏度,改善浆体的流变性能;而掺10%硅灰增大了浆体屈服应力及塑性黏度。The influence of mineral admixtures on the flowability and rheological propperties of cement paste at low water to binder ratio was investigated.The results show that fly ash and slag can significantly increase the flowability of cement paste at low water to binder ratiot.30% slag decrease the yield stress and plastic viscosity,improve the rheological propperties of paste,while 10% silica fume increases the yield stress and plastic viscosity.

关 键 词：水泥净浆 矿物掺合料 流动性 流变性能 

分 类 号：TU528.041[建筑科学—建筑技术科学]