Effect of Water-to-Binder Ratio on Strength of Brick Aggregate Concrete Containing Rice Husk Ash

DOI

10.2991/978-94-6463-672-7_4How to use a DOI?

Keywords

Brick aggregate concrete; rice husk ash; compressive strength; tensile strength; flexural strength

Abstract

The present study investigates the effect of the water-to-binder ratio (w/b) on the strength of brick aggregate concrete (BAC) containing rice husk ash (RHA) as a partial replacement of cement. To conduct the study, the properties of the materials were investigated. BAC cylinders (100 × 200 mm) and beams (100 × 100 × 500 mm) were prepared using various percentages of RHA (0, 10, 15, 20, and 25%). The volume ratio of 1:1.5:3 (cement: fine aggregate: coarse aggregate) was used at w/b of 0.45, 0.50, and 0.55. After determining the material properties, the slumps of fresh BAC were measured. The strengths of RHA-based hardened BAC were tested after 28 days. The workability of BAC decreased with increasing RHA content but improved with higher w/b ratios. BAC with up to 15% RHA content achieved higher compressive and tensile strengths than the control BAC (0% RHA) at w/b of 0.50. The maximum compressive and tensile strengths were found at 10% RHA content at w/b of 0.50. However, the flexural strength of BAC with RHA showed inferior performance at all w/b ratios. Thus, BAC with up to 15% RHA content demonstrated enhanced strength at a w/b of 0.50.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Md. Abu Noaman
AU  - Md. Nazrul Islam
AU  - Md. Rezaul Karim
AU  - Khandaker Saiful Islam
AU  - Mohammad Abu Hanif
PY  - 2025
DA  - 2025/04/04
TI  - Effect of Water-to-Binder Ratio on Strength of Brick Aggregate Concrete Containing Rice Husk Ash
BT  - Proceedings of the 1st International Conference on Recent Innovation in Civil Engineering and Architecture for Sustainable Development (IICASD-2024)
PB  - Atlantis Press
SP  - 31
EP  - 39
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-672-7_4
DO  - 10.2991/978-94-6463-672-7_4
ID  - Noaman2025
ER  -