EXPERIMENTAL RESEARCH ON ALTERNATIVE POZZOLAN ANALCIME TO CLINOPTILOLITE

Abstract

In the future, depending on the increasing demand of cement, the additives in the market may not be able to meet the demand or there may be a need to use high amounts of additives. So, there is a need to new alternative additive materials. The aim of this study is to evaluate the potential of analcime which may be alternative to clinoptilolite. Therefore, it was performed some tests on mortars/concretes containing analcime and clinoptilolite. The amounts of natural zeolites (analcime, clinoptilolite) which were used for blended cements were 0, 10, 30 and 50% of Portland cement weight. In the study, i) physical, chemical, mineralogical, pozzolanic properties of natural zeolites, ii) strength, abrasion resistance and capillarity on samples containing analcime and clinoptilolite blended cements, iii) the energy evaluations for cements/concretes used in the study were investigated. According to the results, analcime has been showed similar properties to clinoptilolite. In some cases, due to these similar properties, it has been concluded that analcime may be an alternative pozzolan to clinoptilolite which is widely used in blended cement industry.