Author : S. K. Verma 1
Date of Publication :24th January 2018
Abstract: This paper highlights various factors responsible for the deterioration of conventional concrete, resulting in its malfunctioning during its service life. In order overcome these issues the development of High-Performance Concrete (HPC) has taken place. The primary cause for deterioration of concrete structures is found to be permeation. HPC development is aimed at minimizing this aspect with proper proportioning of available materials, apart from increasing its resistance towards sulphate attack, corrosion of embedded steel, abrasion, erosion and cavitation etc. The Desirable properties of ingredients like cement, aggregate, admixtures, water, etc. used for developing HPC1 have also been discussed. Approaches for reduction of capillary pore size and role of chemically active binding agents to improve the resistance to permeation have also been presented. Besides these, the role of quality control in placing, compaction and curing of concrete for its improved performance is also discussed.
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