AN EXPERIMENTAL EVALUATION OF MECHANICAL PROPERTIES FOR UHSC MIXES

Abstract

Ultra High Strength Concrete (UHSC) originally proposed by Richard & Cheyrezy (1995) composed of cement, SF, quartz sand, quartz powder, steel fibres, superplasticizer etc. Later, other ingredients such as fly ash (FA), ground granulated blast furnace slag (GGBS), metakaoline, copper slag, fine aggregate of different sizes have been added to original UHSC. The main aim of the study is to examine an experimental evaluation of mechanical properties for UHSC mixes. Several mixes were made to finalize the mix which exhibits the required mechanical properties. Mechanical properties were evaluated for all the mixes. Mechanical properties include compressive strength, split tensile strength, flexural strength and modulus of elasticity. Ten UHSC mixes with various ingredients have been tested for evaluation of the above mechanical properties. The compressive strength, split tensile strength, flexural strength and modulus of elasticity of mix TM-10 corresponding to 28 days are 109MPa, 11.5 MPa, 27.35MPa and 35.43 GPa respectively