INTRODUCTION
The moisture movement has decisive effects on most of the
deterioration process in concrete such as chloride penetration,
carbonation, corrosion, leaching, acid and sulfate attack,
freeze and thaw attack and alkali silica reaction. Therefore,
it may affect the performance of concrete [1]. The water
diffusion is due to a moisture gradient within concrete and
water evaporation from surface. The drying of concrete is
the function of the saturation degree and the pore structure
of the concrete. Pore structure of the concrete is affected by
cementitious composition, w/c ratio, a/c ratio and curing period.
Despite the numerous works have been done on the subject,
few works try to study the effect of various parameters on
drying rate of concrete. In this study over 300 samples has
been cast and monitored for over one year in various drying
conditions. And a numerical model to predict the moisture
gradient of concrete with various mix proportion and ambient
conditions has been proposed.

Authors:

Sabet Divsholi Bahador (Sabe0001@ntu.edu.sg)
Jong Herman Cahyadi (CHCJong@ntu.edu.sg)

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