Research Article
Optimization of Compressive Strength and Porosity of Porous Concrete with the Addition of Zeolite as a Substitute for Sand and Silica Fume
@INPROCEEDINGS{10.4108/eai.16-9-2025.2361143, author={Kinanti Wijaya and Andre Alfama Afrizal Nasution and Trimailuzi Trimailuzi and Sutrisno Sutrisno and Nahesson Hotmarama Panjaitan}, title={Optimization of Compressive Strength and Porosity of Porous Concrete with the Addition of Zeolite as a Substitute for Sand and Silica Fume}, proceedings={Proceedings of the 7th International Conference on Innovation in Education, Science, and Culture, ICIESC 2025, 16 September 2025, Medan, Indonesia}, publisher={EAI}, proceedings_a={ICIESC}, year={2026}, month={3}, keywords={porous concrete engineering and material science}, doi={10.4108/eai.16-9-2025.2361143} }- Kinanti Wijaya
Andre Alfama Afrizal Nasution
Trimailuzi Trimailuzi
Sutrisno Sutrisno
Nahesson Hotmarama Panjaitan
Year: 2026
Optimization of Compressive Strength and Porosity of Porous Concrete with the Addition of Zeolite as a Substitute for Sand and Silica Fume
ICIESC
EAI
DOI: 10.4108/eai.16-9-2025.2361143
Abstract
Porous concrete is a type of concrete designed to allow water to flow through its pores, thereby reducing pooling and increasing water absorption into the soil. However, the use of porous concrete in road paving is still limited due to its low compressive strength. This study aims to determine the effect of adding zeolite as a sand substitute on the compressive strength and porosity of porous concrete containing silica fume. The study used variations in zeolite content of 12.5%, 17.5%, 22.5%, and 27.5% of the weight of fine aggregate, as well as a silica fume content of 7%. The test results show that variations in zeolite addition affect the compressive strength and porosity of concrete. The optimum variation was found at a zeolite content of 17.5% which provides an increase in compressive strength while maintaining a good level of porosity.
