Title :
Experimental study of groutability of Super-Micro cement
Author :
Qiao, Weiguo ; Meng, Qingbin ; Lv, Yanxin ; Zhang, Yanqi
Author_Institution :
Coll. of Civil Eng. &. Archit., SDUST, Qingdao, China
Abstract :
Based on the similarity theory and the theory of model test, we simulate different opening rock fractures indoors. On account of Super-Micro cement with four different water cement ratios of 0.8, 1.0, 1.5, 2.0 under different water reducer and additive, the experiment is testing the passing rate of Super-Micro cement through the filter with diameters of 0.02mm, 0.05mm, 0.07mm. The test results indicate that the ultimate limit viscosities are 17.1mPa.s, 33.6mPa.s and 624.7mPa.s respectively when the superfine cement passes these three filtrations. After analyzing the influence of grout viscosity on passing rate, that is to say, the bigger the viscosity, the smaller the crack width.
Keywords :
additives; cements (building materials); cracks; failure analysis; filtration; rocks; viscosity; additive; crack width; filtration; grout viscosity; groutability; limit viscosity; model test theory; opening rock fracture; passing rate; similarity theory; supermicro cement; water cement ratio; water reducer; Apertures; Filtering theory; Mathematical model; Rocks; Slurries; Viscosity; Super-Micro cement; groutability; micro-fissure; model test; viscosity;
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9172-8
DOI :
10.1109/RSETE.2011.5964283
