Manufacturing Building Bricks from Foundry Silica Sand

Bricks

Waste to Wealth is a program identified by CSIR, Government of India under the theme Industrial Solids Waste Management. Manufacturing building bricks from foundry silica sand is an innovative technology developed in NIIST for the complete utilization of foundry mould silica sand. This technology utilizes over 55% foundry silica sand to produce a wide range of construction products through cost-effective compression moulding technique. The process technology involved mixing of sand with required raw materials and compressed into bricks, and blocks. The technology produced durable compressed bricks with the density of 1.8 to 2.1 kg/cm3, water absorption 15 to 18% and the strength of > 5 MPa.

  • Advantages :
    • Sustainable solution:The process uses industrial waste material and produces no CO2 emissions, as it does not involve firing
    • Cost-effective:Minimal cement usage and simple compression molding significantly reduce material and production costs
    • High-performance products:The resulting bricks have high compressive and wet strength, ensuring durability in various building applications
    • Versatility:The technology enables the production of a wide range of construction products, including bricks, blocks, and panels
  • Commerical Status : Already Commercialised
  • Technology Readiness Level : Market Launch Industrial Application :
  • Research Area :
  • Description :"More than 55% industrial silica sand utilization
    Wide range of products [Bricks, Blocks and Panels]
    Cost-effective Compression Moulding Technology
    Use of Hybrid Silicate Binders
    Compressive Strength above 5 MPa and Weight 19 kg
    Cement is only < 8%"