IMPROVING THE PROPERTIES OF THE ACID RESISTANT MORTAR

Abstract

 This research deals with the study of the production of an acid resistant mortar using local raw materials. The produced acid resistant mortar is to be used as a protective coat to protect the surface made of the ordinary concrete and the other surfaces which are in contact with corrosive aoids such as (H2SOa and HNO3) from the effect of the acids mentioned above.  Silicrete from the western desert was used as chemically inert solid filler. Different types of setting agents were added to the filler above one at a time to form a mix to which either the sodiurn silicate or the pota*.sium silicate solution was added as a binder.

Sarnples of the raw materials were subjected to the mineralogical, chemical and physical tests to determine their reliability and to asses the optimum mix ratio.

Ihe produced acid resistant silicate mortar coincides with the Arnerican Standards ASTM C466 is (1:2) (filler: binder) using 3%by weight either the Sodium florosilicate or the Ethyl acetate as a setting agent.