Effect of pH Variations in Water Immersion on Concrete Compressive and Tensile Strength

Chemical elements, especially acids, can gradually cause concrete to deteriorate. When concrete deteriorates, the bond between the cement paste and aggregates weakens, decreasing compressive strength. This study aims to analyze the influence of pH levels on concrete's compressive and tensile st...

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Main Authors: Muhammad Alim Sunujaya, Agoes Soehardjono, Devi Nuralinah
Format: Article
Language:English
Published: University of Brawijaya 2025-06-01
Series:Rekayasa Sipil
Subjects:
Online Access:https://rekayasasipil.ub.ac.id/index.php/rs/article/view/1260/670
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author Muhammad Alim Sunujaya
Agoes Soehardjono
Devi Nuralinah
author_facet Muhammad Alim Sunujaya
Agoes Soehardjono
Devi Nuralinah
author_sort Muhammad Alim Sunujaya
collection DOAJ
description Chemical elements, especially acids, can gradually cause concrete to deteriorate. When concrete deteriorates, the bond between the cement paste and aggregates weakens, decreasing compressive strength. This study aims to analyze the influence of pH levels on concrete's compressive and tensile strength. Concrete specimens with characteristic compressive strengths of 20, 25, and 30 MPa were immersed in solutions with pH levels of 4 (acidic), 7 (neutral), and 10 (alkaline) for 28 days. These study results are from experiments conducted at Brawijaya University, Malang. The results showed that an acidic environment can decrease the compressive strength of concrete. In contrast, immersion in an acidic solution (pH 4) significantly reduces the tensile strength compared to immersion in neutral and alkaline solutions. Concrete with higher characteristic compressive strength tends to have higher tensile strength, even when exposed to acidic environments. The conclusion drawn from this study is that an acidic environment (pH 4) significantly negatively impacts the tensile strength of concrete. Concrete with higher characteristic compressive strength exhibits better resistance to acidic environments. Neutral (pH 7) and alkaline (pH 10) environments yield better results than acidic environments.
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spelling doaj-art-e0a062269d484dd28bab85818ad5e9b42025-08-20T02:08:40ZengUniversity of BrawijayaRekayasa Sipil1978-56582502-63482025-06-0119216016810.21776/ub.rekayasasipil.2025.019.02.4Effect of pH Variations in Water Immersion on Concrete Compressive and Tensile StrengthMuhammad Alim Sunujaya0Agoes Soehardjono1Devi Nuralinah2Civil Engineering Department, Universitas Brawijaya, 65145, IndonesiaCivil Engineering Department, Universitas Brawijaya, 65145, IndonesiaCivil Engineering Department, Universitas Brawijaya, 65145, IndonesiaChemical elements, especially acids, can gradually cause concrete to deteriorate. When concrete deteriorates, the bond between the cement paste and aggregates weakens, decreasing compressive strength. This study aims to analyze the influence of pH levels on concrete's compressive and tensile strength. Concrete specimens with characteristic compressive strengths of 20, 25, and 30 MPa were immersed in solutions with pH levels of 4 (acidic), 7 (neutral), and 10 (alkaline) for 28 days. These study results are from experiments conducted at Brawijaya University, Malang. The results showed that an acidic environment can decrease the compressive strength of concrete. In contrast, immersion in an acidic solution (pH 4) significantly reduces the tensile strength compared to immersion in neutral and alkaline solutions. Concrete with higher characteristic compressive strength tends to have higher tensile strength, even when exposed to acidic environments. The conclusion drawn from this study is that an acidic environment (pH 4) significantly negatively impacts the tensile strength of concrete. Concrete with higher characteristic compressive strength exhibits better resistance to acidic environments. Neutral (pH 7) and alkaline (pH 10) environments yield better results than acidic environments.https://rekayasasipil.ub.ac.id/index.php/rs/article/view/1260/670acidic environmentcompressive strengthconcreteconcrete tensile strength
spellingShingle Muhammad Alim Sunujaya
Agoes Soehardjono
Devi Nuralinah
Effect of pH Variations in Water Immersion on Concrete Compressive and Tensile Strength
Rekayasa Sipil
acidic environment
compressive strength
concrete
concrete tensile strength
title Effect of pH Variations in Water Immersion on Concrete Compressive and Tensile Strength
title_full Effect of pH Variations in Water Immersion on Concrete Compressive and Tensile Strength
title_fullStr Effect of pH Variations in Water Immersion on Concrete Compressive and Tensile Strength
title_full_unstemmed Effect of pH Variations in Water Immersion on Concrete Compressive and Tensile Strength
title_short Effect of pH Variations in Water Immersion on Concrete Compressive and Tensile Strength
title_sort effect of ph variations in water immersion on concrete compressive and tensile strength
topic acidic environment
compressive strength
concrete
concrete tensile strength
url https://rekayasasipil.ub.ac.id/index.php/rs/article/view/1260/670
work_keys_str_mv AT muhammadalimsunujaya effectofphvariationsinwaterimmersiononconcretecompressiveandtensilestrength
AT agoessoehardjono effectofphvariationsinwaterimmersiononconcretecompressiveandtensilestrength
AT devinuralinah effectofphvariationsinwaterimmersiononconcretecompressiveandtensilestrength