论水泥浆液的组成对流变行为的影响(英文版)(9页).pdfVIP

Cement and Concrete Research 41 (2011) 292–300 Contents lists available at ScienceDirect Cement and Concrete Research journal h omepage: http: //ees.elsevi /CEMCON/ d efault.asp Influence of cement grouts composition on the rheological behaviour Viet-Hung Nguyen a, Sébastien Remond b,c,⁎, Jean-Louis Gallias d a Civil Engineering Faculty, University of Architecture, 196 Pasteur, District 3, Ho Chi Minh City, Vietnam b Univ Lille Nord de France, F-59000 Lille, France c EMDouai, MPE-GCE, F-59508 Douai, France d Université de Cergy-Pontoise, L2MGC, 95000 Cergy-Pontoise, France a r t i c l e i n f o a b s t r a c t Article history: The influence of water to cement ratio, HRWRA content and viscosity modifying admixture content on the Received 14 April 2010 rheological characteristics of cement grouts considered as Herschel–Bulkley fluids is studied experimentally. Accepted 23 November 2010 Results show that cement grouts without chemical admixtures and cement grouts containing only a viscosity modifying admixture present a shear-thinning behaviour with an approximately constant value for the Keywords: exponent n of Herschel–Bulkley model. On the contrary, grouts containing a HRWRA content near the Cement D saturation point exhibit quasi Binghamian behaviour. The Herschel–Bulkley model describes properly the Admixture D rheological behaviour of ceme