Monitoring of Structural Performance of Early-age Concrete Pavement

Jaewook Ku,Hyunsik Hwang,Seunghyun Roh

doi:10.18494/sam3761

Abstract

Monitoring of Structural Performance of Early-age Concrete Pavement

Highlights

Concrete is the most extensively used construction material worldwide
Reports have indicated that the change in the internal humidity from hydration heat increases, and this has a dominant impact on the occurrence of early cracks.[17]. These findings indicate that in the case of high-strength concrete, cracks can be formed owing to changes in the volume.[18]. Another study reported that in the case of autogenous shrinkage, pore humidity drops owing to internal hydration, and it is not affected by the depth of the mixture or ambient humidity.[19]
According to results from previous studies, the reduction factor, which quantifies the relationship between zero-strain temperature (ZST) and the peak hydration temperature, ranges from 6 to 8% on average depending on Cement concrete mix design (W/C: water-to-cement ratio, S/A: sand-to-aggregate ratio)

Summary

Introduction

Concrete is the most extensively used construction material worldwide. Portland cement concrete pavement was first designed in the United States in 1892. Concrete has been applied as a paving material for various infrastructures such as roads, ports, and airports.[1] As the safety and durability of these infrastructures are critical, the cost of repair and the service life need to be assessed carefully. The service life of concrete is evaluated in terms of physical strength, durability, and serviceability. The physical strength of concrete varies with age and setting time. During this early-age period, two main reactions occur: a setting process with a progressive loss of fluidity and a ISSN 0914-4935 © MYU K.K. https://myukk.org/

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Results

Conclusion