A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Production of Sustainable Mortar with Sodium Hydroxide Treated Rubber Crumb
Abstract Mortar is one of the essential construction materials required for the construction of infrastructures, most importantly, as connectors in walling units. The incorporation of Rubber Crumbs (RCs) into mortar is one of the best methods of controlling environmental pollution and improving the quality of construction material. This study evaluates the performance of sodium hydroxide (NaOH) treated Rubber Crumb (RC) on mortar’s structural properties. In the experiment, the physical and chemical characterizations of the materials such as sand, RCs and cement were determined in accordance with SANS 3001-AG1 and SANS 3001-AG20 respectively. The consistency and setting times of mortar were determined according to SANS 50196 – 3: 2006 and EN 196 – 3: 2005. Also, the densities, water absorption, modulus of elasticity, and flexural and compressive strengths of mortar were evaluated according to SANS 50196-1, ASTM C 1437 and SANS 50196-3 standard using 40 × 40 × 160 mm mortar prisms. The morphological natures of the RC were evaluated through SEM and EDS techniques. The experimental results showed that 1.5% RC increased mortar’s compressive and flexural strengths by 9.13% and 5.89%, respectively. The density, modulus of elasticity, variation in modulus of elasticity, and water absorption of mortar reduced by 3.8, 10, 0.2 and 0.27% at the application of 1.5, 1.5, 1.5, and 3.5% of RC respectively. This reduction indicated good properties of RC- mortar for construction purposes. The SEM and EDS micrographs of RC treated with NaOH developed less dense pores leading to the production of better strength mortar. In conclusion, mortar with 1.5% NaOH treated RC is good for construction purposes, most importantly, in building blocks interface and rendering of walls.
Production of Sustainable Mortar with Sodium Hydroxide Treated Rubber Crumb
Abstract Mortar is one of the essential construction materials required for the construction of infrastructures, most importantly, as connectors in walling units. The incorporation of Rubber Crumbs (RCs) into mortar is one of the best methods of controlling environmental pollution and improving the quality of construction material. This study evaluates the performance of sodium hydroxide (NaOH) treated Rubber Crumb (RC) on mortar’s structural properties. In the experiment, the physical and chemical characterizations of the materials such as sand, RCs and cement were determined in accordance with SANS 3001-AG1 and SANS 3001-AG20 respectively. The consistency and setting times of mortar were determined according to SANS 50196 – 3: 2006 and EN 196 – 3: 2005. Also, the densities, water absorption, modulus of elasticity, and flexural and compressive strengths of mortar were evaluated according to SANS 50196-1, ASTM C 1437 and SANS 50196-3 standard using 40 × 40 × 160 mm mortar prisms. The morphological natures of the RC were evaluated through SEM and EDS techniques. The experimental results showed that 1.5% RC increased mortar’s compressive and flexural strengths by 9.13% and 5.89%, respectively. The density, modulus of elasticity, variation in modulus of elasticity, and water absorption of mortar reduced by 3.8, 10, 0.2 and 0.27% at the application of 1.5, 1.5, 1.5, and 3.5% of RC respectively. This reduction indicated good properties of RC- mortar for construction purposes. The SEM and EDS micrographs of RC treated with NaOH developed less dense pores leading to the production of better strength mortar. In conclusion, mortar with 1.5% NaOH treated RC is good for construction purposes, most importantly, in building blocks interface and rendering of walls.
Production of Sustainable Mortar with Sodium Hydroxide Treated Rubber Crumb
Iran J Sci Technol Trans Civ Eng
Kilani, Abiodun Joseph (author) / Ikotun, Bolanle Deborah (author) / Abdulwahab, Rasheed (author)
2025-03-10
Article (Journal)
Electronic Resource
English
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