Open AccessAnalysis of Post-Combustion Concrete Study with The Addition of Superplasticizer
Author(s) -
Rahmi Karolina,
Deni Malik
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/648/1/012022
Subject(s) - superplasticizer , compressive strength , materials science , porosity , pervious concrete , combustion , composite material , properties of concrete , cement , chemistry , organic chemistry
This research explains that the use of superplasticizer admixture as an additional material in concrete mixes is expected to minimize concrete damage due to burning at high temperatures by increasing the quality of concrete in its mechanical properties which is compressive strength and physical properties which is concrete porosity. The variations in the addition of superplasticizer admixture used are 1%; 1.5%; and 2%, while variations in concrete combustion are 200°C; 500°C; and 800°C.The test results show a decrease in compressive strength and increase in concrete porosity due to combustion at high temperatures. The tendency of concrete compressive strength will decrease along with the increasing temperature. At the temperature of 200°C, a decrease of 7.14%; 40.57%; and 65.71% occurs, at the 500 °C, decreased by 2.74%; 15.07%; and 65.75%, while at 800°C decreased by 13.79%; 14.47%; and 53.95% of the initial strength of concrete without combustion. The porosity of concrete will rise along with the increasing temperature and the percentage increase will be greater along with the combustion temperature. At the temperature of 200°C there is an increase in porosity of 7.41% - 11,853%, at 500°C increased by 13,334% - 17,779%, and at 800°C increased by 19.26% - 23.704%, from normal concrete porosity.