Internal Curing in High Performance Concrete: Effect of Lightweight Aggregate on Shrinkage and Salt Frost Durability

Zhi Chao Liu; Will Hansen

doi:10.4028/www.scientific.net/KEM.629-630.201

Paper Titles

Influence of Recycled Aggregate Defects on the Durability of Recycled Aggregate Concrete
p.173

Effect of Loading on Permeability of Recycled Aggregate Concrete
p.183

Experimental Research on the Durability of Inorganic Binder Stabilized Material with Soda Residue
p.189

Sorptivity as a Measure of Salt Frost Scaling Resistance of Air-Entrained Concrete
p.195

Internal Curing in High Performance Concrete: Effect of Lightweight Aggregate on Shrinkage and Salt Frost Durability
p.201

Experiment Study on the Effect of GGBFS on Frost Resistance of Concrete
p.207

The Research of Influence on the Freezing Resistance and the Permeation Resistance of Concrete With Spraying Silane
p.213

Durability Design of Concrete Structures in Severe Environments
p.218

Study on Transient Air Permeability of Concrete under Different Curing Conditions
p.223

HomeKey Engineering MaterialsKey Engineering Materials Vols. 629-630Internal Curing in High Performance Concrete:...

Internal Curing in High Performance Concrete: Effect of Lightweight Aggregate on Shrinkage and Salt Frost Durability

Abstract:

High performance concrete (HPC) consisting of low water-binder (w/b) ratio and supplementary cementitious materials (SCM) is more prone to shrinkage cracking if subjected to external deformation restraint. The effectiveness of using lightweight fine aggregate (LWA) for autogenous shrinkage reduction is being studied along with implications on salt frost durability. HPC consisting of 0.33 w/b ratio and cementitious replacement level up to 50% by slag cement and natural sand replacement level by LWA of up to 50% is investigated. Results indicate that these concretes exhibit excellent salt frost resistance provided the HPC is sufficiently air entrained. The mitigation of autogenous shrinkage by LWA is analyzed by comparing the spacing of LWA particles in cement paste and the flow distance of retained moisture in LWA to the adjacent paste.

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Periodical:

Key Engineering Materials (Volumes 629-630)

Pages:

201-206

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.629-630.201

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Online since:

October 2014

Authors:

Zhi Chao Liu*, Will Hansen

Keywords:

Autogenous Shrinkage, High-Performance Concrete (HPC), LWA, Salt Frost Scaling, Slag Cement

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