September 16, 2025SustainabilityOpen Access

Strength Development of PPC Concrete with Rice Husk Ash: Optimal Replacement Levels for Sustainable Construction

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This observational analysis identifies optimal rice husk ash replacement levels in PPC concrete, suggesting sustainable practices.

Moderate rice husk ash contents of 5–7.5% enhanced compressive strength in PPC concrete.
Maximum compressive strength of 37.62 MPa observed at 7.5% RHA after 56 days, improving the control by 3.5%.
Assessment using compressive and flexural strength tested at multiple intervals over 56 days.
Findings support the use of RHA in PPC concrete as a sustainable alternative, reducing carbon emissions.

Mohammed A. Albadrani (2025) studied this question.

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