摘要
以0.8为浆液的基础水灰比,通过试验研究硼酸的掺加量对硫铝酸盐水泥浆液凝结时间、结石率以及抗压强度的影响规律,并分析硫铝酸盐水泥浆液在旋喷桩止水帷幕工程中的应用条件。结果表明:硼酸掺加量在0.45%~0.8%范围内时,浆液的凝结时间可以调节,能满足旋喷桩止水帷幕的施工工艺要求;当硼酸掺加量在0.55%附近时,硫铝酸盐水泥石后期强度下降幅度最大,会对旋喷桩止水帷幕的防渗效果产生不利的影响。
With 0.8 as the base water cement ratio of slurry,the influence of boric acid dosages on the setting time,calculus rate and compressive strength of sulphoaluminate cement slurry is studied through experiments,and the application conditions of sulphoaluminate cement slurry in the waterresisting curtain of jet grouting pile are analyzed.The results show that when the boric acid dosage is in the range of 0.45%~0.8%,the setting time of the slurry can be adjusted,which can meet the process requirements of the water-resisting curtain of the jet grouting pile;when the boric acid dosage is near to 0.55%,the later strength of the sulphoaluminate cement paste decreases the most,which will have a negative impact on the anti-seepage effect on the water-resisting curtain of the jet grouting pile.
作者
赵孝平
蔡其茅
陶利萍
王望飞
ZHAO Xiaoping;CAI Qimao;TAO Liping;WANG Wangfei(Jinhua Ploytechnic,Jinhua 321007,China;Zhejiang Sci-Tech University,Hangzhou 310000,China;Zhejiang Ziwei Construction Co.,Ltd.,Jinhua 321000,China;Longsheng Construction Co.,Ltd.,Jinhua 321000,China)
出处
《金华职业技术学院学报》
2020年第6期53-56,共4页
Journal of Jinhua Polytechnic
基金
高校国内访问工程师校企合作项目“强透水层旋喷桩浆液扩散范围控制研究”(FG2018026)
金华市公益类科学技术研究计划项目“高压旋喷桩止水帷幕浆液扩散控制及应用研究”(2018-4-004)。
关键词
硫铝酸盐水泥
硼酸
凝结时间
后期强度
sulphoaluminate cement
boric acid
setting time
later strength
