硅灰石粉对水泥基灌浆料性能的影响.pdfVIP

学兔兔 ， 2010年第 3期(总第 245期 ) 混 凝 土 原材料及辅助物料 Number 3 in 2010(To~l No．245) Concrete M_ATERIAL AND ADMINICLE doi：10．39690．issn．1002-3550．2010．03．022 UEA／硅灰石粉对水泥基灌浆料性能的影响 戴 民’，聂元秋 。吴解放。 (1．沈阳建筑大学，辽宁沈阳110168；2．沈阳远大铝业工程有限公司，辽宁沈阳 110023； 3．中铁丰桥桥梁有限公司工程试验检测中心，北京 101204) 摘 要： 以UEA膨胀剂为膨胀源，制备了单掺UEA及双掺UEA和硅灰石粉的两种水泥基灌浆料试样，并对其竖向膨胀率、流动度和强 度等指标进行了测试与分析。试验结果表明，UEA可使水泥基灌浆料获得足够的膨胀值，但其强度、流动度随UEA掺量的增加而降低；与 单掺UEA试样相比，掺加硅灰石粉可对试样的膨胀产生一定的约束，明显提高灌浆料的强度，但流动度有所下降。 关键词：UEA；硅灰石；水泥基灌浆料；竖向膨胀率 ’ 中图分类号：TU528．041 文献标志码：A 文章编号： 1002—3550(2010)03—0074—03 Effects of UEA and wollastonite powder on properties of cement grout material DAIMin ，N1E Yuan—qiu ，WUJie-fang (1．Shenyang JianzhuUniversity，Sh~nyang110168，China；2．ShenyangYuandaEnterpriseGroup，Shenyang110023，China； 3．The Sixth Engineering Bure CREC，Beijing 101204，China) Abstract： 111e two kinds of cement grout material were prepared 也UEA expanding agent as the Source of expanding．nle one was doped 、vith UEA，and the other was doped with UEA and Wollastonite powders．The value ofexpansion coefficient，fluidity and strength were obtained by the standard experiment methods．The results showed that UEA was able to make the cement grout matedals obtain adequate expansion．but the strengthandthefluiditydecreased wjt】1increasingtheratioOfUEA．CompareAtothe specimen dopedwithUEA，the e