Nayak, Gopinath and Shetty, Kiran Kumar and Sowbyath Raj , B N and Akshaya, . (2012) Effect of supplementary cementitious materials on bond strength of high performance concrete. In: International Conference on “Advances in Architecture and Civil Engineering (AARCV–2012), June 20-23, 2012, Bangalore.

PDF kiran 1.pdf - Published Version Restricted to Registered users only Download (3MB) | Request a copy

Abstract

High performance concrete (HPC) is used for concrete mixes which possesses high workability, high strength, and high modulus of elasticity, high density, high dimensional stability, low permeability and resistance to chemical attack. Research has been conducted on the bond strength of HPC using high volumes of supplementary cementing materials (SCM) (such as fly ash, ground granulated blast furnace slag (GGBFS)). The bond characteristics of such HPC’s are very important for their application in practical construction. An extensive investigation was conducted to determine the bond strength between deformed reinforcing steel bar and SCM based HPC for different grades and was compared with normal concrete. Bond tests were conducted using a universal testing machine for pullout test. The HPC pullout specimens were cast without applying any consolidation, whereas the NC specimens were cast by conventional practice with consolidation and vibration. Performance of various codes based and other existing bond equations are validated through experimental results illustrating the influence of concrete types (either HPC of different types of different grades or normal concrete of different grades).

Actions (login required)

View Item