First test in Malawi with innovative ceramic bricks to combat deforestation
25 Feb 2020
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Malawi suffers from severe deforestation due to the red clay brick they produce locally in wood fired kilns. TNO developed a Cold Ceramic Brick or ‘Cool Bricks’ to replace the local ceramic bricks. Neither heating nor firing is required in manufacturing these bricks because we combine waste resources with innovative materials and processes. This innovation is developed in the Netherlands and in this project we transfer it to Malawi in order to reach social and economic impact. Our partner Terrastone Ltd will manufacture these bricks locally and will launch them into the market. After thorough preparations we conducted our first pilot production in Malawi.
Promising local results
In February 2020, TNO developed the brick recipe at Terrastone in the capital Lilongwe with Malawian materials. We established a small laboratory at the quarry plant of Terrastone and mixed 7 recipees out of many different waste sources, fillers and activators. Aim was to find an optimal mix without using cement and to mould and compress the bricks, reaching a strength of 12-15 MPa. The tests went well and we are now preparing durability tests required for testing its performance in the Malawian climate. On the other hand we are fine-tuning the business model for making it a profitable venture.
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