Like regular concrete, permeable concrete is a composite material made of particles joined by a cementitious binder. However, the material has a network of spaces that let water through since it includes less fine aggregate. Effective water management is the main goal of permeable concrete, especially in urban settings where stormwater management is crucial. It lessens the strain on drainage systems, replenishes groundwater, and lessens the impact of the heat island. This study examines the effects of using ground granulated blast furnace slag (GGBS) in permeable concrete mixtures in place of the cement as a partial replacement. GGBS was used in different percentages (10%, 20%, 30%, 40%, 50%, and 60%) to replace the cement. At 7, 14, 28 and 56 days, mechanical characteristics such as compressive strength, split tensile strength, and flexural strength alongside durability properties such as porosity, permeability, and water absorption properties were assessed. According to the findings, adding GGBS to permeable concrete mixtures greatly increases their strength, especially when replacement amounts are between 30% and 50% due to pozzolanic activity and microstructural densification. Porosity decreased from 26.0% to 17.4%, water absorption dropped to 10.9%, and permeability remained within functional limits, confirming the mix’s hydraulic efficiency. When GGBS is added to concrete, its compressive, tensile, and flexural strengths are higher than those of normal concrete, improving the concrete’s mechanical performance. Nevertheless, by lessening the material’s environmental impact, GGBS substitution improves the sustainability of permeable concrete. GGBS is a more environmentally friendly alternative to typical cement manufacture since it helps reduce the large carbon emissions linked to it. The findings highlight a trade-off between enhanced short-term mechanical properties and potential limitations in the long-term performance of permeable concrete with GGBS, emphasizing the need for further research into optimizing GGBS content for balanced performance and sustainability.
Study on the Mechanical Properties of Permeable Concrete with Ground Granulated Blast Furnace Slag
Verma M.
Writing – Original Draft Preparation
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2026-01-01
Abstract
Like regular concrete, permeable concrete is a composite material made of particles joined by a cementitious binder. However, the material has a network of spaces that let water through since it includes less fine aggregate. Effective water management is the main goal of permeable concrete, especially in urban settings where stormwater management is crucial. It lessens the strain on drainage systems, replenishes groundwater, and lessens the impact of the heat island. This study examines the effects of using ground granulated blast furnace slag (GGBS) in permeable concrete mixtures in place of the cement as a partial replacement. GGBS was used in different percentages (10%, 20%, 30%, 40%, 50%, and 60%) to replace the cement. At 7, 14, 28 and 56 days, mechanical characteristics such as compressive strength, split tensile strength, and flexural strength alongside durability properties such as porosity, permeability, and water absorption properties were assessed. According to the findings, adding GGBS to permeable concrete mixtures greatly increases their strength, especially when replacement amounts are between 30% and 50% due to pozzolanic activity and microstructural densification. Porosity decreased from 26.0% to 17.4%, water absorption dropped to 10.9%, and permeability remained within functional limits, confirming the mix’s hydraulic efficiency. When GGBS is added to concrete, its compressive, tensile, and flexural strengths are higher than those of normal concrete, improving the concrete’s mechanical performance. Nevertheless, by lessening the material’s environmental impact, GGBS substitution improves the sustainability of permeable concrete. GGBS is a more environmentally friendly alternative to typical cement manufacture since it helps reduce the large carbon emissions linked to it. The findings highlight a trade-off between enhanced short-term mechanical properties and potential limitations in the long-term performance of permeable concrete with GGBS, emphasizing the need for further research into optimizing GGBS content for balanced performance and sustainability.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
