(7094)--水泥基注浆材料浆液稳定性及其析水规律试验.pdf

水泥基注浆材料浆液稳定性及其析水规律试验 : (0.6 1~3 1)(0%~90%) ︰ ︰ (0~12%) C ： ：TD265 ；U45 ：A DOI: 10.3969/j.issn.1001-1986.2019.05.004 Stability of cement-based grouting slurry and test of its bleeding law 1,2,4 1,2,4 3 3 3 3 2,4 XU Bin , DONG Shuning , XU Lulu , ZHOU Yan , CHEN Junjun , DAI Zhenxue , WANG Hao (1. College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China; 2. Xi ’an Research Institute Co. Ltd., China Coal Technology and Engineering Group Corp., Xi ’an 710077, China; 3. College of Construction Engineering, Jilin University, Changchun 130026, China; 4. Shaanxi Key Laboratory of Coal Mine Water Hazard Prevention and Control Technology, Xi ’an 710077, China) Abstract: To better understand the stability performance and bleeding property of cement-based grouting slurry, a new test device was improved to get the separated-water thickness value of slurry samples at every time, and these samples were made and sorted according to the certain proportion of the water-solid ratio(0.6:1 to 3:1), fly ash content(0-90%) and sodium silicate content(0-12%). The growth theory for separated-water thickness was intro- duced, and the growth curves for all formulations were plotted. The slurry stability measurement method was clas- sified, and the equ