EXPERIMENTAL ASSESSMENT OF THE SODIUM SULPHATE SOUNDNESS OF COARSE AGGREGATES COMMONLY USED IN YENAGOA BAYELSA STATE CONSTRUCTION SITE
Righteous Damini Damini
Paper Contents
Abstract
This study investigates the soundness characteristics of coarse aggregates commonly used in construction projects across yenagoa Bayelsa State, Nigeria, using sodium sulfate (NaSO) accelerated weathering tests in accordance with ASTM C88. A total of three aggregate samples were collected from major suppliers and local quarries in Okutukutu, Opolo, and Kpansia. Physical properties such as specific gravity, water absorption, and aggregate impact value (AIV) were also determined to complement the soundness results. Findings revealed that while all samples passed the standard AIV threshold (<30%), only 70% met the soundness requirement of mass loss 12% in sodium sulfate tests. Aggregates from riverine and deltaic origins displayed higher mass loss compared to those sourced from more crystalline geological formations. The study concludes that material source is a major determinant of aggregate durability, and recommends more stringent quality control measures for material selection in Yenagoa Bayelsa construction projects, especially for infrastructure exposed to cyclic wetting and drying.
Copyright
Copyright © 2025 Righteous Damini. This is an open access article distributed under the Creative Commons Attribution License.