Siam Minerals provides drilling fluids for diaphragm walls constructions. In practice, the support fluid, mostly a bentonite based drilling fluid, temporarily stabilizes the trench wall prior to concrete placement. While the stabilization of the diaphragm wall is the main function of a drilling mud, there are several others that need to be taken into account when choosing the optimal drilling fluid for diaphragm walls. Several fluid properties need to be determined to also facilitate the separation of the excavated soil from the slurry and to maximize density between the slurry and the concrete to facilitate a smooth concreting process. With years of experience in the South East Asian market, our mud engineers understand very well how to deal with various soil conditions and how to choose the most suitable drilling fluid for diaphragm wall installations.