University of Sharjah develops desert-sand bricks that halve cement use
Researchers at the University of Sharjah have created eco-friendly bricks from local desert sand and industrial by-products, cutting the need for Portland cement by almost 50%.
In a study published in the Journal of Materials in Civil Engineering, University of Sharjah scientists combined fine desert sand from the Sharjah region with alkaline solutions and industrial waste materials such as blast-furnace slag and ashes to produce new building bricks. These bricks harden at ambient temperature, eliminating the energy-intensive curing step required for many alternatives. Performance testing demonstrated compliance with ASTM criteria, lower water absorption and superior resistance to sulfate-rich environments, especially relevant for coastal construction.
By replacing a substantial portion of Portland cement, the method could reduce the sector’s carbon emissions, which contribute roughly 10% of global CO₂ output. The researchers stress that the technology remains at the laboratory stage and will need pilot-scale trials, standardisation and cost analysis before commercial adoption. Prof. Omar highlighted the goal of creating locally sourced, durable, and sustainable construction materials for harsh desert conditions.
Why it matters
The innovation could lower construction emissions and make use of abundant desert sand and waste materials.
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