Grouting and Ground Treatment: Proceedings of the Third International Conference, (ASCE)
A Method for Measuring and Evaluating the Penetrability of Grouts
M. Eriksson, H. Stille
This paper suggests a method for measuring the penetrability of grouts. The proposed method evaluates the penetrability of the grout based on measurements with a newly developed device where the groutís ability to pass filters of different widths is measured. After evaluation two especially descriptive parameters are obtained, a minimum and a critical aperture. These two parameters describe the penetrability of the grout and can be used for comparing grouts and in modeling grout propagation. In the paper some measurements and evaluated results are presented. This is to study some governing factors for the penetrability of grout but the main objective is to demonstrate the proposed method. The results confirm that the main factor governing the penetrability is the type of cement used and that variations in w/c ratio and addition of superplasticizers only have limited influence. Measurements on the filter cake show that the thickness and the density are influenced by pressure and w/c ratio.
|article #1165; publication #62 (GRT-2003)|