How using Lower Water/Cement Ratio in concrete will prevent sulfate attack?
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Lowering the water/cement ratio in concrete can help prevent sulfate attack by enhancing the durability and resistance of the cement-based materials. Studies have shown that using low water-binder ratios in cement mixes, along with additives like hardening accelerators , microsilica , and CO2 curing , can improve the macro-properties, compressive strength, and pore structure distribution of the concrete. Additionally, the presence of calcium carbonates introduced through carbonation has been found to enhance sulfate durability in concrete, reducing vulnerability to sulfate attacks . These approaches collectively lead to reduced permeability, consumption of calcium hydroxide, and improved pore structure, all contributing to mitigating sulfate attack in concrete structures.
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| Papers (5) | Insight |
|---|---|
| Lowering the water/cement ratio in concrete reduces permeability, decreasing sulfate ingress, and enhancing resistance to sulfate attack in sulfate-resisting cement due to its low C3A content. | |
| Lowering the water/cement ratio in concrete can prevent sulfate attack by reducing porosity and enhancing the pore structure, inhibiting volume expansion from sulfate exposure, as shown in the study. | |
5 Citations | Lowering the water/cement ratio in concrete can reduce permeability, enhancing resistance to sulfate attack by decreasing ingress pathways for harmful ions, as discussed in the study. |
| Lower water-binder ratio in cement-based materials enhances resistance to sulfate attack. Microsilica addition improves macro-properties, with 15% dosage showing optimal performance due to pore structure modifications. | |
| Lowering the water/cement ratio in concrete can enhance sulfate attack resistance by reducing permeability, limiting sulfate ingress, and enhancing the overall durability of the concrete structure. |
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