The Effects of Well-Graded Bottom Ash in Improving Mechanical and Thermal Properties of High-Strength Concrete

• Published in: Springer Proceedings in Physics
• Main Author: Beddu S.; Sufian M.S.M.; Zahari N.M.; Mohamad D.; Basri N.A.N.; Yee H.M.; Zailani W.W.A.
• Format: Conference paper
• Language: English
• Published: Springer Science and Business Media Deutschland GmbH 2023
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85168771226&doi=10.1007%2f978-981-19-9267-4_66&partnerID=40&md5=059da051bf410301bc0e6d9c5d73378c

Well-graded bottom ash exhibited an improvement on mechanical and thermal properties of high-strength concrete as a fine aggregate replacement in concrete. The well-graded coal bottom ash was used by 25%, 50%, 75%, and 100% in a set of six concrete samples trial mix designs including normal mix. Existence of bottom ash affected the workability for high-strength concrete where the workability reduced as the well-graded bottom ash percentages increase in concrete. Other than that, the compressive strength test of high-strength concrete also showed an improvement with the optimum variable at 50% bottom ash replacement. Besides, by increasing the well-graded bottom ash, the thermal conductivity on high-strength concrete was reduced. Lastly, well-graded bottom ash was one of the best replacements for fine aggregate in improving the mechanical and thermal properties of high-strength concrete. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.