Evaluation of the Behavior of the Physical and Mechanical Properties of Green Concrete Exposed to Magnesium Sulfate

Abstract

In the present research work, four concrete mixtures were designed according to the ACI 211.1 method, the first as a control mixture, with 100% CPC, and the remaining three elaborated with partial replacement of the CPC by combinations of Sugar Cane Bagasse Ash and Silica Fume (SCBA-SF) in 10%, 20% and 30% (Green Concrete). The tests carried out on the four mixtures were physical properties (Slump, Temperature, Density) and mechanical properties as Compressive Strength (F'c) and Modulus of Elasticity, according to the ASTM and ONNCCE standards, the study specimens were exposed in water, as a control medium and a 3.5% solution of MgSO 4 as an aggressive medium for a period of 28 days. The results obtained indicate a good performance of the Green Concrete in comparison with the control mixture, in particular the Green Concrete made with 10% and 20% substitution of CPC by SCBA-SF.