Palm-based lightweight concrete system

Kamarul Aini Mohd Sari, Sohif Mat, Khairiah Badri

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A palm-based polyurethane system was used as a polymeric phase in a concrete system. It comprised of palm kernel oil-based polyol reacted with 2, 4-methylene diphenyl diisocyanate (crude MDI). A development in the formulation of the polymer concrete in achieving the lowest possible density at an optimal level of polyurethane (PU) system was conducted. The PU system, in the concrete mixture comprised of 5-50% w/w, targeted a density of less than 1800 kg/m3. The rise time, indicating the end of reaction time was obtained at 80 s. The lightweight concrete underwent a phase change in 5-8 min. Excessive PU in the concrete generated more bubbles and resulted in the existence of voids. Optical microscopy analysis was carried out. PU system comprised of palm-based polyol and MDI at a ratio of 1:1 was favored with loading of 20-30% w/w in the concrete mixture in order to produce a lightweight concrete. The specified load bearing structure capability was set above 1500 kg/m3. The palm-based lightweight concrete has excellent compressive strength 10 MPa and thermal insulation characteristics.

Original languageEnglish
Pages (from-to)192-201
Number of pages10
JournalJournal of Sustainable Cement-Based Materials
Volume1
Issue number4
DOIs
Publication statusPublished - 2012

Fingerprint

Polyurethanes
Concretes
Concrete mixtures
Polyols
Bearings (structural)
Palm oil
Thermal insulation
compressive strength
void
Compressive strength
Optical microscopy
bubble
microscopy
Polymers
polymer
oil

Keywords

  • Lightweight polymer concrete
  • Palm kernel oil-based polyol
  • Polyurethane

ASJC Scopus subject areas

  • Ceramics and Composites
  • Waste Management and Disposal

Cite this

Palm-based lightweight concrete system. / Mohd Sari, Kamarul Aini; Mat, Sohif; Badri, Khairiah.

In: Journal of Sustainable Cement-Based Materials, Vol. 1, No. 4, 2012, p. 192-201.

Research output: Contribution to journalArticle

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