Sustainable and Eco-Friendly Vege Roofing Tiles: An Innovative Bio-Composite

Noor Zainab Habib, Humayun Nadeem, Choon Aun Ng, Salah Elias Zoorob, Zahiraniza Mustaffa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
93 Downloads (Pure)


This paper presents a research study conducted on the usage of vegetable oil for theproduction of eco-friendly Vege roofing tiles. Conventional roofing tiles which constitute of concreteand clay are considered as environmentally unfriendly because of the significant amount ofgreenhouse gas emission during their production. An entirely novel methodology of utilizingcatalyzed vegetable oil is proposed which can totally replace the use of traditional binders like cementand clay. Limited trails conducted on prototypes samples revealed that when catalyzed vegetable oilmixed with aggregates, properly compacted and heat cured at 190ºC for 24 hours, have shownflexural strength up to 9.5 MPa. The superior strength gain of these prototype samples was considereddue to the use of the catalyst with vegetable oil, which resulted in the initiation of catalyticoxy-polymerization set of reactions during heat curing, converting vegetable oil to solid, hardpolymer which is considered responsible for strength achievement factor for these novel Vege roofing tiles. All prototypes samples were tested for performance indicators like water absorption, permeability, and flexural strength according to ASTM standards. Moreover, the susceptibility of oil leachate from the tiles oil, when tested using electrical conductivity method showed a negligible amount of the electrical conductivity. Moreover, the estimated embodied energy requirements for these tiles were found quite less when compared to conventional tiles.
Original languageEnglish
Pages (from-to)71-76
Number of pages5
JournalMaterials Science Forum
Publication statusPublished - 18 Jan 2017


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