Production and mechanical properties of high performance concrete

Abstract

Increasing demands of the new millennium for sustainable and durable structures, and the limited available resources, have awakened the need for newer construction technologies and the efficient use of structural materials. Strengths of concrete such as tensile, flexural, shearing and bond strength are all related to the compressive strength. For this reason, it means that concrete with high compressive strength will also enhance other properties. Mechanical properties of hardened concrete are the most important property which civil engineers or everyone who work with concretes should pay attention. These properties are compressive strength, modulus of elasticity, tensile strength, creep and shrinkage. In this research, the first three properties of HPC were investigated. This Experimental investigation presents a study of properties of High performance concrete and comparing the properties with different codes and literature. The study focuses mainly on the properties like compressive strength, spilt tensile strength, modulus of rupture and modulus of elasticity of a high performance GGBS concrete by 0%, 5% and 10% of GGBS replacement with OPC to achieve strength of M60 and M80. For M60 and M80 grade concrete maximum strength achieved by replacing 5% GGBS with OPC and decreased for 10% replacement. In this study statistical equation has been proposed which is the relation between spilt tensile strength and cube compressive strength, and, modulus of rupture and spilt tensile strength. The equations proposed are in good agreement with ACI and other literature. The equations proposed by other literature are too conservative and need to modify for High performance concrete.