Properties of mortar with waste tyre rubber as partial sand replacement

Chong, Beng Wei and Rokiah, Othman and Tan, Wei Sheng and Putra Jaya, Ramadhansyah and Mohd Mustafa Al Bakri, Abdullah (2021) Properties of mortar with waste tyre rubber as partial sand replacement. Key Engineering Materials, 879. pp. 49-61. ISSN 1013-9826 (print); 1662-9795 (online). (Published)

Properties of Mortar with Waste Tyre Rubber as Partial Sand.pdf

Download (2MB) | Preview


Around 1000 million waste tyres are generated annually and over 5000 million more are estimated to be discarded by 2030. It is estimated that one waste tyre is discarded per person in developed areas; hence 1 billion waste tyres are disposed worldwide. Waste tyre is difficult to manage as it takes up space, is difficult to compress and combustion of tyre releases highly toxic substance into the air. Hence, most of them end up in the landfill, as past research data estimated that currently 4 billion waste tyres can be found in landfills. In this study, up to 30% tyre rubber with a fine grind size of 300nm to 500nm was used as partial sand replacement in type N cement mortar. The rubber was treated with 1M NaOH solution to enhance its ability to bond with the other constituent materials. Tests were conducted to determine the properties of rubberised mortar, including consistency, compressive strength, flexural strength, water absorption and acid attack. From the test result, tyre rubber reduced the consistency and strength of mortar. Mathematical regression model showed that reduction of strength occurred in a second-order polynomial function with percentage of rubber. It was concluded that at up to 20% replacement rubberised mortar has the best resistance against water absorption and acid attack while still achieving the target strength.

Item Type: Article
Uncontrolled Keywords: Mortar; Tyre rubber; Compression; Flexural; Water absorption; Acid attack
Subjects: T Technology > TH Building construction
Faculty/Division: College of Engineering
Faculty of Civil Engineering Technology
Depositing User: PM Dr. Ramdhansyah Putra Jaya
Date Deposited: 14 Apr 2021 03:24
Last Modified: 14 Apr 2021 03:24
Download Statistic: View Download Statistics

Actions (login required)

View Item View Item