A study on the characteristics of palm-based polyurethane as a lightweight aggregate in concrete mix

Research on the development of lightweight concrete (LWC) utilizing wastes and natural resources as lightweight aggregates (LWA) is increasingly gaining attention worldwide due to sustainable and environmental concerns. A new alternative is using palm kernel oil polyol (PKO-p)-based polyurethane (PU...

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Main Authors:	Kamarul Aini Mohd Sari, Sohif Mat, Khairiah Haji Badri, Muhammad Fauzi Mohd Zain
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2015
Online Access:	http://journalarticle.ukm.my/8955/ http://journalarticle.ukm.my/8955/ http://journalarticle.ukm.my/8955/1/01_Kamarul_Aini.pdf

id	ukm-8955
recordtype	eprints
spelling	ukm-89552016-12-14T06:48:32Z http://journalarticle.ukm.my/8955/ A study on the characteristics of palm-based polyurethane as a lightweight aggregate in concrete mix Kamarul Aini Mohd Sari, Sohif Mat, Khairiah Haji Badri, Muhammad Fauzi Mohd Zain, Research on the development of lightweight concrete (LWC) utilizing wastes and natural resources as lightweight aggregates (LWA) is increasingly gaining attention worldwide due to sustainable and environmental concerns. A new alternative is using palm kernel oil polyol (PKO-p)-based polyurethane (PU) as filler. Rigid PU is a block copolymer comprised of a monomeric PKO-p and 2, 4-methylene diphenyl diisocyanate (crude MDI). The property of PKO-p, its ratio with crude MDI and reaction time were determined. The reaction time showed the average of 60 s for cream time and 95 s for rise time with maximum hardening time of 8 min. The reaction between PKO-p to MDI at 1:1 ratio resulted in a very short hardening time (within 2 min). The compressive strength of the rigid PU was at 7.0 MPa at a density of 206 kg/m3. Further increase in the amount of PKO-p increased the density and compressive strength of the PU. PU aggregate in the concrete mixture was added at 1 to 5% (w/w) to obtain concrete with density of less than 1800 kg/m3. The resulting concrete has excellent compressive strength (17.5 MPa) and thermal conductivity (0.24 W/m⋅K). The results showed that physical properties of PU played the most significant effect on the physical and mechanical properties of the lightweight concrete. Universiti Kebangsaan Malaysia 2015-06 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/8955/1/01_Kamarul_Aini.pdf Kamarul Aini Mohd Sari, and Sohif Mat, and Khairiah Haji Badri, and Muhammad Fauzi Mohd Zain, (2015) A study on the characteristics of palm-based polyurethane as a lightweight aggregate in concrete mix. Sains Malaysiana, 44 (6). pp. 771-778. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid44bil6_2015/KandunganJilid44Bil6_2015.htm
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Research on the development of lightweight concrete (LWC) utilizing wastes and natural resources as lightweight aggregates (LWA) is increasingly gaining attention worldwide due to sustainable and environmental concerns. A new alternative is using palm kernel oil polyol (PKO-p)-based polyurethane (PU) as filler. Rigid PU is a block copolymer comprised of a monomeric PKO-p and 2, 4-methylene diphenyl diisocyanate (crude MDI). The property of PKO-p, its ratio with crude MDI and reaction time were determined. The reaction time showed the average of 60 s for cream time and 95 s for rise time with maximum hardening time of 8 min. The reaction between PKO-p to MDI at 1:1 ratio resulted in a very short hardening time (within 2 min). The compressive strength of the rigid PU was at 7.0 MPa at a density of 206 kg/m3. Further increase in the amount of PKO-p increased the density and compressive strength of the PU. PU aggregate in the concrete mixture was added at 1 to 5% (w/w) to obtain concrete with density of less than 1800 kg/m3. The resulting concrete has excellent compressive strength (17.5 MPa) and thermal conductivity (0.24 W/m⋅K). The results showed that physical properties of PU played the most significant effect on the physical and mechanical properties of the lightweight concrete.
format	Article
author	Kamarul Aini Mohd Sari, Sohif Mat, Khairiah Haji Badri, Muhammad Fauzi Mohd Zain,
spellingShingle	Kamarul Aini Mohd Sari, Sohif Mat, Khairiah Haji Badri, Muhammad Fauzi Mohd Zain, A study on the characteristics of palm-based polyurethane as a lightweight aggregate in concrete mix
author_facet	Kamarul Aini Mohd Sari, Sohif Mat, Khairiah Haji Badri, Muhammad Fauzi Mohd Zain,
author_sort	Kamarul Aini Mohd Sari,
title	A study on the characteristics of palm-based polyurethane as a lightweight aggregate in concrete mix
title_short	A study on the characteristics of palm-based polyurethane as a lightweight aggregate in concrete mix
title_full	A study on the characteristics of palm-based polyurethane as a lightweight aggregate in concrete mix
title_fullStr	A study on the characteristics of palm-based polyurethane as a lightweight aggregate in concrete mix
title_full_unstemmed	A study on the characteristics of palm-based polyurethane as a lightweight aggregate in concrete mix
title_sort	study on the characteristics of palm-based polyurethane as a lightweight aggregate in concrete mix
publisher	Universiti Kebangsaan Malaysia
publishDate	2015
url	http://journalarticle.ukm.my/8955/ http://journalarticle.ukm.my/8955/ http://journalarticle.ukm.my/8955/1/01_Kamarul_Aini.pdf
first_indexed	2023-09-18T19:53:35Z
last_indexed	2023-09-18T19:53:35Z
_version_	1777406380885409792

A study on the characteristics of palm-based polyurethane as a lightweight aggregate in concrete mix

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