
Fatahi, O., Jafari, S. (2018). Prediction of Lightweight Aggregate Concrete Compressive Strength. Journal of Rehabilitation in Civil Engineering, 6(2), 4557. doi: 10.22075/jrce.2017.11556.1192Omid Fatahi; Saeed Jafari. "Prediction of Lightweight Aggregate Concrete Compressive Strength". Journal of Rehabilitation in Civil Engineering, 6, 2, 2018, 4557. doi: 10.22075/jrce.2017.11556.1192Fatahi, O., Jafari, S. (2018). 'Prediction of Lightweight Aggregate Concrete Compressive Strength', Journal of Rehabilitation in Civil Engineering, 6(2), pp. 4557. doi: 10.22075/jrce.2017.11556.1192Fatahi, O., Jafari, S. Prediction of Lightweight Aggregate Concrete Compressive Strength. Journal of Rehabilitation in Civil Engineering, 2018; 6(2): 4557. doi: 10.22075/jrce.2017.11556.1192
Prediction of Lightweight Aggregate Concrete Compressive Strength
Article 4, Volume 6, Issue 2  Serial Number 12, Summer and Autumn 2018, Page 4557
PDF (1127 K)
Document Type: Regular Paper
DOI: 10.22075/jrce.2017.11556.1192
Authors
Omid Fatahi^{1}; Saeed Jafari ^{} ^{2}
^{1}Dicipline of civil engeenring, Islamic Azad University, EyveneGharb Branch, Eyven, Iran
^{2}Departmant of civil and inveromantal engineering, Sahiraz University of Technology, Shiraz, Iran.
Receive Date: 07 June 2017,
Revise Date: 06 August 2017,
Accept Date: 05 September 2017
Abstract
Nowadays, the better performance of lightweight structures during earthquake has resulted in using lightweight concrete more than ever. However, determining the compressive strength of concrete used in these structures during their service through a nonedestructive test is a popular and useful method. One of the main methods of nondestructive testing in the assessment of compressive strength of concrete in the service is ultrasonic pulse velocity test. The aim of this study is predicting the compressive strength of lightweight aggregate concrete by offering a suitable mathematical formulation. Many samples of lightweight aggregate concrete, made by expanded clay, have been produced and tested. After determining the actual compressive strength and indirect ultrasonic pulse velocity for each sample, a relationship was presented to predict the compressive strength through Gene Expression Programming (GEP). The results show the presented equation has high accuracy in estimating the compressive strength of samples and that experimental results are perfectly compatible with the test results.
Keywords
Lightweight aggregate concrete; gene expression programming; Ultrasonic pulse velocity; Nonedestructive test; Prediction of compressive strength
Main Subjects
Safety and Monitoring
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