Analysis of Geopolymer Concrete in Recycled Materials for Economical Behavior of the Structure

Mechanical properties, such as compreessive, flexural and tensile splitting strength, considering an additional 10% volume of SF Geo-polymer concrete, as recommended by international codes, to partially replace slag cement to partially to medium strength, Geo-polymer concrete has not been investigated. till now. The present study investigates the mechanical properties of medium strength SF geo-polymer concrete made according to this construction practice by partial replacement of slag cement. The effect of SF on the strength of compreessive, flexural and tensile splitting of rigid Geo-polymer concrete is investigated. Seven geo-polymer concrete mixes are prepared by replacing Portland slag cement (PSC) partially with SF from 0 to 30%. The Indian standard recommends reducing the target strength of conventional Geo-polymer concrete in terms of water-to-cement ratio (w / c). In the present study, to propose the relation of compreessive strength with water-cement ratio, the behavior of RCA Geo-polymer concrete prepared from two samples of parent geo-polymer concrete with different age groups is investigated. The effect of age and number of recycling on properties such as capillary water absorption, drying shrinkage stress, air content, flexural strength and tensile splitting strength of RCA Geo-polymer concrete are investigated. And the compreessive strength gradually decreases with the number of recycling.