Influence of internal curing on the properties of non-fibrous high strength concrete: A critical review

Influence of internal curing on the properties of non-fibrous high strength concrete: A critical review

Cement Based Composites (CEBACOM)
Volume 1 - Issue 3 - October 2020

Ferhad Karim Ashti Sedeeq Ali

Abstract

The demand for construction of high strength concrete (HSC) in civil engineering zone is growing, particularly in the last couple of years due to the allowability of sustainable and economic buildings with an extraordinary slim design. The concrete curing in the prosses of construction is an operative manner and very essential to provide that concrete structures meet future performance and durability, ACI definition of internal curing (IC) as a procedure by which the hydration of cement continues because of the availability of internal water that is not part of the mixing water. HSC has a low water-to-binder (w/b) ratio, proper curing of concrete is important to ensure that it achieves its planned performance and durability. Conventionally, exterior curing, applied after placing and casting concrete, stays warm and moist to provide continued cement hydration. Lately, theoretically and experimentally comprehends that internal curing (IC) is an important tool to provide additional moisture in the concrete to enhance cement's hydration. Internal curing of HSC is an active technique to lessen or even remove autogenous shrinkage and effects on chemical shrinkage, dry shrinkage, etc. Generally, for internal curing, super-absorbent polymer (SAP) and porous materials like lightweight aggregate (LWA) are used. Built on both water-absorbing mechanism sorts, the influence of internal curing materials on high-strength concrete is studied in this paper.

Keywords

autogenous shrinkage, fibrous concrete, high strength concrete, internal concrete curing, microstructure Super-absorbent polymers
https://doi.org/10.36937/cebacom.2020.003.001