Prediction of concrete residual compressive strength under elevated temperatures: Response surface methodology (RSM) approach

Exposure of concrete to elevated temperatures causes irreversible damage to the concrete structure and poses a serious threat to its service life. Due to the importance of concrete fire performance, extensive research has been conducted to investigate its behavior under different conditions of eleva...

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Main Authors: Ho, C. M., Doh, Shu Ing, Chin, Siew Choo, Liu, X.
Format: Conference or Workshop Item
Language:English
English
English
Published: Elsevier Ltd 2023
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/36631/1/Prediction%20of%20concrete%20residual%20compressive%20strength%20under%20elevated%20temperatures%20_%20Response%20surface%20methodology%20%28rsm%29%20approach.pdf
http://umpir.ump.edu.my/id/eprint/36631/7/Prediction%20of%20concrete%20residual%20compressive%20strength%20under%20elevated%20temperatures_ABST.pdf
http://umpir.ump.edu.my/id/eprint/36631/8/Prediction%20of%20concrete%20residual%20compressive%20strength%20under%20elevated%20temperatures.pdf
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author Ho, C. M.
Doh, Shu Ing
Chin, Siew Choo
Liu, X.
author_facet Ho, C. M.
Doh, Shu Ing
Chin, Siew Choo
Liu, X.
author_sort Ho, C. M.
collection UMP
description Exposure of concrete to elevated temperatures causes irreversible damage to the concrete structure and poses a serious threat to its service life. Due to the importance of concrete fire performance, extensive research has been conducted to investigate its behavior under different conditions of elevated temperatures. The properties of concrete are significantly affected by various factors, including heating temperatures, heating durations, and cooling methods. Among these factors, the residual compressive strength of concrete is considered the most crucial characteristic after exposure to elevated temperatures. This paper aims to develop mathematical models for analyzing and predicting the relative residual compressive strength of concrete at high temperatures. Three independent factors were identified in this study: heating temperatures, heating duration, and cooling method. Two groups of datasets on the relative residual compressive strength of concrete under elevated temperatures were reviewed and collected from previous studies, serving as the benchmark dataset and validation dataset, respectively. Response Surface Methodology (RSM) was employed to analyze the datasets. The results of various statistical parameters, such as the coefficient of determination, sum of squares, F-value, and P-value, indicate the significance of the predicted model for estimating concrete's relative residual compressive strength under elevated temperatures. The RSM analysis reveals that heating temperatures have the most significant effect on the relative residual compressive strength of concrete. In summary, the RSM model shows a strong correlation with the validation datasets, with a coefficient of determination (R2) of 0.7869.
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spelling UMPir366312024-08-15T08:06:14Z http://umpir.ump.edu.my/id/eprint/36631/ Prediction of concrete residual compressive strength under elevated temperatures: Response surface methodology (RSM) approach Ho, C. M. Doh, Shu Ing Chin, Siew Choo Liu, X. T Technology (General) TA Engineering (General). Civil engineering (General) TH Building construction Exposure of concrete to elevated temperatures causes irreversible damage to the concrete structure and poses a serious threat to its service life. Due to the importance of concrete fire performance, extensive research has been conducted to investigate its behavior under different conditions of elevated temperatures. The properties of concrete are significantly affected by various factors, including heating temperatures, heating durations, and cooling methods. Among these factors, the residual compressive strength of concrete is considered the most crucial characteristic after exposure to elevated temperatures. This paper aims to develop mathematical models for analyzing and predicting the relative residual compressive strength of concrete at high temperatures. Three independent factors were identified in this study: heating temperatures, heating duration, and cooling method. Two groups of datasets on the relative residual compressive strength of concrete under elevated temperatures were reviewed and collected from previous studies, serving as the benchmark dataset and validation dataset, respectively. Response Surface Methodology (RSM) was employed to analyze the datasets. The results of various statistical parameters, such as the coefficient of determination, sum of squares, F-value, and P-value, indicate the significance of the predicted model for estimating concrete's relative residual compressive strength under elevated temperatures. The RSM analysis reveals that heating temperatures have the most significant effect on the relative residual compressive strength of concrete. In summary, the RSM model shows a strong correlation with the validation datasets, with a coefficient of determination (R2) of 0.7869. Elsevier Ltd 2023-09-28 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/36631/1/Prediction%20of%20concrete%20residual%20compressive%20strength%20under%20elevated%20temperatures%20_%20Response%20surface%20methodology%20%28rsm%29%20approach.pdf pdf en http://umpir.ump.edu.my/id/eprint/36631/7/Prediction%20of%20concrete%20residual%20compressive%20strength%20under%20elevated%20temperatures_ABST.pdf pdf en http://umpir.ump.edu.my/id/eprint/36631/8/Prediction%20of%20concrete%20residual%20compressive%20strength%20under%20elevated%20temperatures.pdf Ho, C. M. and Doh, Shu Ing and Chin, Siew Choo and Liu, X. (2023) Prediction of concrete residual compressive strength under elevated temperatures: Response surface methodology (RSM) approach. In: Materials Today: Proceedings. Materials Today: Proceeding; 6th National Conference for Postgraduate Research (NCON-PGR 2022) , 15 November 2022 , Virtual Conference, Universiti Malaysia Pahang. pp. 1-8.. ISSN 2214-7853 (In Press / Online First) (In Press / Online First) https://doi.org/10.1016/j.matpr.2023.09.133
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
TH Building construction
Ho, C. M.
Doh, Shu Ing
Chin, Siew Choo
Liu, X.
Prediction of concrete residual compressive strength under elevated temperatures: Response surface methodology (RSM) approach
title Prediction of concrete residual compressive strength under elevated temperatures: Response surface methodology (RSM) approach
title_full Prediction of concrete residual compressive strength under elevated temperatures: Response surface methodology (RSM) approach
title_fullStr Prediction of concrete residual compressive strength under elevated temperatures: Response surface methodology (RSM) approach
title_full_unstemmed Prediction of concrete residual compressive strength under elevated temperatures: Response surface methodology (RSM) approach
title_short Prediction of concrete residual compressive strength under elevated temperatures: Response surface methodology (RSM) approach
title_sort prediction of concrete residual compressive strength under elevated temperatures response surface methodology rsm approach
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
TH Building construction
url http://umpir.ump.edu.my/id/eprint/36631/1/Prediction%20of%20concrete%20residual%20compressive%20strength%20under%20elevated%20temperatures%20_%20Response%20surface%20methodology%20%28rsm%29%20approach.pdf
http://umpir.ump.edu.my/id/eprint/36631/7/Prediction%20of%20concrete%20residual%20compressive%20strength%20under%20elevated%20temperatures_ABST.pdf
http://umpir.ump.edu.my/id/eprint/36631/8/Prediction%20of%20concrete%20residual%20compressive%20strength%20under%20elevated%20temperatures.pdf
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