Availability portland cement for add zeolite in building industry Case study zeolite sangsar cement company-semnan

In this paper, the properties of concrete containing zeolite as partial replacements of cement and sand were studied in lab. Sangsar cement company –semnan-Iran. The compressive strength, water absorption, chloride ion diffusion and resistance to acid environments of concretes made with zeolite(clinoptilolite) at proportions of 6%, 10% , 15% ,20% and 25% of zeolite in four mine zeolite and amount 42 cubic 15*15 cm and different blain and std. aggregate at were investigated. So, results of this study show that the compressive strength of samples with zeolite increased considerably. With the incorporation zeolite, the chloride resistance of specimens was enhanced significantly thatzeolitic cement can cause improving mechanical specifications of cement and its durability in sensitive situations such as marin, acidic, and sulphatic situations. Decreasing hydration temperature of cement. Improving klincer ductility and controlling silica basic reaction are others advantages of zeolitic cement. Also, one must pay attention that zeolite may cause to increasing cement required water for achieving to suitable level. Above advantages about zeolitic cement because of different zeolitic ores with different purity are inaccessible cement. In the other words, as using zeolite cement in sensitive situation, using test and survey with regarding to cement durability are recommended