Water absorption and drying shrinkage of recycled foamed aggregate concrete

This paper presents some experimental results and discusses the used of recycled foamed aggregates as natural coarse aggregates replacement in producing concrete. The physical properties of recycled foamed aggregates concrete were investigated. The properties studied are water absorption and drying...

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Main Authors: Chai, Teck Jung, Tang, Hing Kwong, Koh, Heng Boon
Format: Article
Language:en
Published: Penerbit UTM Press 2018
Subjects:
Online Access:http://eprints.uthm.edu.my/3961/1/AJ%202018%20%2853%29.pdf
http://eprints.uthm.edu.my/3961/
https://doi.org/10.11113/mjce.v30.16072
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author Chai, Teck Jung
Tang, Hing Kwong
Koh, Heng Boon
author_facet Chai, Teck Jung
Tang, Hing Kwong
Koh, Heng Boon
author_sort Chai, Teck Jung
building UTHM Library
collection Institutional Repository
content_provider Universiti Tun Hussein Onn Malaysia
content_source UTHM Institutional Repository
continent Asia
country Malaysia
description This paper presents some experimental results and discusses the used of recycled foamed aggregates as natural coarse aggregates replacement in producing concrete. The physical properties of recycled foamed aggregates concrete were investigated. The properties studied are water absorption and drying shrinkage from the concrete early ages until the periods of 56 days. The 100 mm x 100 mm cube specimen was used to study the water absorption at the age of 7, 28 and 56 days. Meanwhile, the 100 mm x 100 mm x 300 mm length prism had been casted and used for drying shrinkage test for recycled foamed aggregates concrete. The foamed aggregates was produced from crushing recycled foamed concrete blocks. It were coated with cement paste to reduce its water absorption ability during casting process. Superplasticizer was used to maintain the workability of fresh concrete with a slump vary between 50 mm to 100 mm. The physical tests were conducted on recycled foamed aggregates to determine their initial properties such as loose bulk density, sieve analysis and water absorption rate. Recycled foamed aggregate concretes were produced with varied water cement ratio. The results obtained indicated that the linear elastic relationship between water cement ratio and water absorption rate. The higher the water cement ratio of concrete specimen will obtained higher water absorption rate. Vice versa, the density is low for drying shrinkage. The water absorption decreased while drying shrinkage becomes more stabilized over curing period.
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spelling my.uthm.eprints-39612021-11-22T07:54:19Z http://eprints.uthm.edu.my/3961/ Water absorption and drying shrinkage of recycled foamed aggregate concrete Chai, Teck Jung Tang, Hing Kwong Koh, Heng Boon T Technology (General) TA Engineering (General). Civil engineering (General) TH Building construction TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction This paper presents some experimental results and discusses the used of recycled foamed aggregates as natural coarse aggregates replacement in producing concrete. The physical properties of recycled foamed aggregates concrete were investigated. The properties studied are water absorption and drying shrinkage from the concrete early ages until the periods of 56 days. The 100 mm x 100 mm cube specimen was used to study the water absorption at the age of 7, 28 and 56 days. Meanwhile, the 100 mm x 100 mm x 300 mm length prism had been casted and used for drying shrinkage test for recycled foamed aggregates concrete. The foamed aggregates was produced from crushing recycled foamed concrete blocks. It were coated with cement paste to reduce its water absorption ability during casting process. Superplasticizer was used to maintain the workability of fresh concrete with a slump vary between 50 mm to 100 mm. The physical tests were conducted on recycled foamed aggregates to determine their initial properties such as loose bulk density, sieve analysis and water absorption rate. Recycled foamed aggregate concretes were produced with varied water cement ratio. The results obtained indicated that the linear elastic relationship between water cement ratio and water absorption rate. The higher the water cement ratio of concrete specimen will obtained higher water absorption rate. Vice versa, the density is low for drying shrinkage. The water absorption decreased while drying shrinkage becomes more stabilized over curing period. Penerbit UTM Press 2018 Article PeerReviewed text en http://eprints.uthm.edu.my/3961/1/AJ%202018%20%2853%29.pdf Chai, Teck Jung and Tang, Hing Kwong and Koh, Heng Boon (2018) Water absorption and drying shrinkage of recycled foamed aggregate concrete. Malaysian Journal of Civil Engineering, 30 (3). pp. 466-476. ISSN 2600-9498 https://doi.org/10.11113/mjce.v30.16072
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
TH Building construction
TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction
Chai, Teck Jung
Tang, Hing Kwong
Koh, Heng Boon
Water absorption and drying shrinkage of recycled foamed aggregate concrete
title Water absorption and drying shrinkage of recycled foamed aggregate concrete
title_full Water absorption and drying shrinkage of recycled foamed aggregate concrete
title_fullStr Water absorption and drying shrinkage of recycled foamed aggregate concrete
title_full_unstemmed Water absorption and drying shrinkage of recycled foamed aggregate concrete
title_short Water absorption and drying shrinkage of recycled foamed aggregate concrete
title_sort water absorption and drying shrinkage of recycled foamed aggregate concrete
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
TH Building construction
TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction
url http://eprints.uthm.edu.my/3961/1/AJ%202018%20%2853%29.pdf
http://eprints.uthm.edu.my/3961/
https://doi.org/10.11113/mjce.v30.16072
url_provider http://eprints.uthm.edu.my/