A Comprehensive Investigation for the Production of Optimized Interlocking Compressed Earthen Bricks with Varying Proportions of Stabilizer, Water, and Fine Aggregate

Author:

Fiaz Mashhood,Khan Shayan AliORCID,Amjad Hassan,Sajid Zeerak Waryam,Khushnood Rao Arsalan

Abstract

The global construction industry is shifting toward eco‐friendly building materials to reduce environmental impact while ensuring affordability, energy efficiency, and resource conservation. Interlocking compressed earthen bricks (ICEBs) offer a sustainable alternative to traditional bricks. However, ICEB composition significantly impacts their performance. This study investigates the interplay of stabilizer, water, and fine aggregate content to optimize ICEBs. Soil properties were assessed through particle size gradation analysis, Atterberg limits, and the modified Proctor test. ICEBs were manufactured using cement as a stabilizer, with various combinations of stabilizer proportions, water‐to‐soil ratios, and inclusion of fine aggregates. Compressive strength tests were conducted for each mix. Results showed that increased cement content enhanced ICEB compressive strength by promoting the formation of calcium silicate hydrate gel. Water content increments from 12% to 21% improved strength up to 18% but declined thereafter. Higher sand percentages initially reduced compressive strength but improved it with higher cement proportions. The optimal mix ratio was selected for ICEB production, followed by tests including flexural strength assessment, forensic investigations, curing regimes impact, and comprehensive durability and structural performance evaluation. Findings highlight ICEBs’ potential as a sustainable alternative to conventional brick masonry.

Publisher

Wiley

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