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Strength properties and molecular composition of epoxy-modified mortars

Even without hardener, epoxy resin is able to harden in the presence of hydroxyl ions produced during cement hydration process. In this study commercially available Bisphenol A-type epoxy resin without hardener was used as a polymeric admixture to prepare epoxy-modified mortars, whose properties and...

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Main Authors: Ariffin, Nur Farhayu, Hussin, Mohd. Warid, Mohd. Sam, Abdulrahman, Bhutta, Muhammad Aamer Rafique, Abd. Khalid, Nur Hafizah, Mirza, Jahangir
Format: Article
Language:English
Published: Elsevier Limited 2015
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/56146/1/NurFarhayuAriffin2015_StrenghtPropertiesandMolecularCompositionofEpoxy.pdf
http://eprints.utm.my/id/eprint/56146/
http://dx.doi.org/10.1016/j.conbuildmat.2015.06.056
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spelling my.utm.561462017-09-14T06:56:09Z http://eprints.utm.my/id/eprint/56146/ Strength properties and molecular composition of epoxy-modified mortars Ariffin, Nur Farhayu Hussin, Mohd. Warid Mohd. Sam, Abdulrahman Bhutta, Muhammad Aamer Rafique Abd. Khalid, Nur Hafizah Mirza, Jahangir TA Engineering (General). Civil engineering (General) Even without hardener, epoxy resin is able to harden in the presence of hydroxyl ions produced during cement hydration process. In this study commercially available Bisphenol A-type epoxy resin without hardener was used as a polymeric admixture to prepare epoxy-modified mortars, whose properties and chemical composition were then investigated. The mortars were prepared with a mass ratio of 1:3 (cement:fine aggregate), water-to-cement ratio (W/C) of 0.48, and epoxy content of 5%, 10%, 15% and 20% of cement. The specimens were subjected to dry and wet-dry curing. Workability, setting time, compressive strength, flexural strength, and tensile splitting strength tests were conducted. A Fourier transformation infrared spectroscopy test was also administered to determine the molecular composition and structure of mortars. Results showed an inverse relationship between workability and setting time of mortars versus epoxy content. The compressive, flexural, and tensile splitting strengths of epoxy-modified mortars were noted to be the highest for mortars containing 10% epoxy in wet-dry curing. A significant improvement in strength development of mortars without hardener had been achieved through dry curing due to gradual hardening of epoxy resin with hydrated cement. Elsevier Limited 2015-07-18 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/56146/1/NurFarhayuAriffin2015_StrenghtPropertiesandMolecularCompositionofEpoxy.pdf Ariffin, Nur Farhayu and Hussin, Mohd. Warid and Mohd. Sam, Abdulrahman and Bhutta, Muhammad Aamer Rafique and Abd. Khalid, Nur Hafizah and Mirza, Jahangir (2015) Strength properties and molecular composition of epoxy-modified mortars. Construction and Building Materials, 94 . pp. 315-322. ISSN 0950-0618 http://dx.doi.org/10.1016/j.conbuildmat.2015.06.056 DOI:10.1016/j.conbuildmat.2015.06.056
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Ariffin, Nur Farhayu
Hussin, Mohd. Warid
Mohd. Sam, Abdulrahman
Bhutta, Muhammad Aamer Rafique
Abd. Khalid, Nur Hafizah
Mirza, Jahangir
Strength properties and molecular composition of epoxy-modified mortars
description Even without hardener, epoxy resin is able to harden in the presence of hydroxyl ions produced during cement hydration process. In this study commercially available Bisphenol A-type epoxy resin without hardener was used as a polymeric admixture to prepare epoxy-modified mortars, whose properties and chemical composition were then investigated. The mortars were prepared with a mass ratio of 1:3 (cement:fine aggregate), water-to-cement ratio (W/C) of 0.48, and epoxy content of 5%, 10%, 15% and 20% of cement. The specimens were subjected to dry and wet-dry curing. Workability, setting time, compressive strength, flexural strength, and tensile splitting strength tests were conducted. A Fourier transformation infrared spectroscopy test was also administered to determine the molecular composition and structure of mortars. Results showed an inverse relationship between workability and setting time of mortars versus epoxy content. The compressive, flexural, and tensile splitting strengths of epoxy-modified mortars were noted to be the highest for mortars containing 10% epoxy in wet-dry curing. A significant improvement in strength development of mortars without hardener had been achieved through dry curing due to gradual hardening of epoxy resin with hydrated cement.
format Article
author Ariffin, Nur Farhayu
Hussin, Mohd. Warid
Mohd. Sam, Abdulrahman
Bhutta, Muhammad Aamer Rafique
Abd. Khalid, Nur Hafizah
Mirza, Jahangir
author_facet Ariffin, Nur Farhayu
Hussin, Mohd. Warid
Mohd. Sam, Abdulrahman
Bhutta, Muhammad Aamer Rafique
Abd. Khalid, Nur Hafizah
Mirza, Jahangir
author_sort Ariffin, Nur Farhayu
title Strength properties and molecular composition of epoxy-modified mortars
title_short Strength properties and molecular composition of epoxy-modified mortars
title_full Strength properties and molecular composition of epoxy-modified mortars
title_fullStr Strength properties and molecular composition of epoxy-modified mortars
title_full_unstemmed Strength properties and molecular composition of epoxy-modified mortars
title_sort strength properties and molecular composition of epoxy-modified mortars
publisher Elsevier Limited
publishDate 2015
url http://eprints.utm.my/id/eprint/56146/1/NurFarhayuAriffin2015_StrenghtPropertiesandMolecularCompositionofEpoxy.pdf
http://eprints.utm.my/id/eprint/56146/
http://dx.doi.org/10.1016/j.conbuildmat.2015.06.056
_version_ 1643654008839077888
score 13.211869

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