Characterization of zeolite influence to improve the performance of concrete

Abstract

The key characteristic of the research is to provide sustainable concrete by reducing cement quantity by using modified pozzolanic materials, such as fly ash and zeolite. Concrete is the primary material used for construction where as there are several drawbacks and adverse impacts on the environment. There are also efficient ways of minimizing carbon footprint / global warming by minimizing the cement contents of concrete preparation. The approach pursued here in this paper is greater cement replacement with fly ash and zeolite and its concrete efficiencies in terms of workability, strength and durability. In this paper concrete grade M40 is adopted and adjusted concrete with UFFA replacement was done for different levels, the optimum levels were carried, and further zeolite replacement was done in different levels with cement. For 30% replacement of UFFA and 10% of Zeolite,the compressive strength increased to 8.2%, flexural strength increased to 4.1% and split tensile strength to 7.7% on comparison with conventional concrete. The micro structural studies confirmed the increase in strength was due to the fineness of the SCM’s and its void filling ability.