Impact of Zeolite Additives on the Permeability of Conventional Concrete with Varied Cement Content

Utilizing pozzolanic materials is a widely recognized strategy to enhance concrete's strength and durability. Pozzolanic reactions fill the voids within the concrete matrix, reducing porosity and permeability and improving the material's overall durability and strength. Zeolite, a natural pozzolan, is abundantly available in Iran and can be easily extracted and processed. This study investigates zeolite's effect on concrete permeability using different grades of cement. To evaluate this, capillary water absorption tests were conducted on concrete specimens. The specimens were prepared with varying cement contents, various percentages of zeolite, and distinct water-cement ratios. The results demonstrate that incorporating zeolite into concrete significantly reduces permeability compared to reference concrete without zeolite. These findings highlight the potential of zeolite as an effective additive for improving the performance of concrete.

کلیدواژه ها:

Zeolite ، Pozzolanic reactions ، Volumetric water absorption ، Capillary water absorption