不同外加剂对水泥基灌浆材料流变性能的影响.pdfVIP

29 3 硅 酸 盐 通 报 Vo l. 29 N o. 3 2010 6 BULLET IN O F THE CH INESE CERAM IC SOC IETY June, 20 10 1 1 2 2 何 涛 , 赵青林 , 徐奇威 , 刘源强 1. , 430070; 2. , 529040 ) : B rookf ie ld R / SSST , , , , H ersche lbulkey n 1) , , , , , : ; ; ; : TU 525 : A : 2010) Eeffect of Different Chem icalAdm ixtures on Rheological Properties of Cem entBased Grouting 1 1 2 2 HE Tao , ZHAO Q inglin , X U Q iwei, LIU Yuanqiang 1. K ey L aboratory for S ilicateM aterials S cience and Eng ineering of M in istry of E du cation, W uh an U n ivers ity of T echnology, W uhan 430070, C hina. 2. J iangm en Zh ongjian S cien ce T echnology Exp lo itation C o. LTD, Jiangm en 529040, Ch ina) Abstract: The effect o f biopolym er, setting retarder and an tifoam ing agent add ition on the apparen t v iscosity of g routing paste w ith fixed W /C ratio and dosage of superp last icizer at designed constant or varied shear rate, also its th ixotrop ic characteristics w as studied by m eans of R / SSST rheom eter produced by Brookfie ld com pany. R esults show ed that rheolog ical curves tested under different cond itions all fit the H erschelBulkey n 1) flu id m odel. In anotherw ords, slurry characterizes to be a tmi e varian t nonN ew ton ian flu id. V iscosity of slurry changes d ifferent ly at various shear rates o r w ith additives in different k inds an