![Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5933/TOC-Subject-Sample-2021-Engineering-Tech.jpg"})
Abstract
Early thermal cracking has been a prevalent problem in many concrete structures. To mitigate such cracking problem, the adiabatic temperature rise of the curing concrete needs to be limited. In practice, curing tests in different forms of temperature rise evaluation test (TRET) are often employed to determine the temperature rise of concrete. However, due to heat loss to the surroundings, the results from TRET do not truly reflect the temperature rise of concrete under adiabatic condition. To address this issue, a semi-adiabatic curing test method with heat loss compensation to simulate the adiabatic condition was developed as presented in this paper. Using the test method, the adiabatic temperature rise and heat generation of ordinary Portland cement (OPC) concrete, pulverised fuel ash (PFA) concrete and condensed silica fume (CSF) concrete were measured. Based on the test results, design charts for estimating the adiabatic temperature rise of OPC, PFA and CSF concretes were devised.