Quarrying and aggregate industries are employing the use of manufactured sand to address the decline in availability of natural sand resources for the production of ready mix and pre mixed concrete.
Depleted reserves, extraction and transportation costs, environmental restrictions and smaller pit location opportunities have all contributed to shortages of the natural resource.
Although the industry has embraced the move, factors of most interest to concrete suppliers are compliance with local regulations and consistency of product.
The Singapore Concrete Institute found that concrete mix using manufactured sand up to 100% is able to be a workable concrete mix without compromising properties of fresh hardened concrete.
The Singapore Institute reports that manufactured sand is being used increasingly as a fine aggregate in concrete production.