Monday, March 30, 2009

Interlocking Soil Stablized Blocks (ISSB) Technology

Development is the ultimate goal for our organization. What people may not know, is that in our construction projects and our work, we do our best to be mindful of the Earth as this is most essential to long term and sustainable development.

One of the ways we do this is by the use of ISSB technology. This technology (in full: Interlocking Soil Stabilized Blocks) has existed for hundreds of years and is just making headway in Sub-Saharan Africa. Makerere University in Kampala along with support from organizations like Good Earth Trust are doing much to develop and promote its use. The interlocking feature to the Soil Stabilized blocks was in fact developed at Makerere!

During construction, we had 2 machines on site producing up to 500 bricks a day. The soil excavated from the holes dug for the water tank and the latrines were used to make the bricks in a mixture of cement and water. This method is both more efficient and environmentally friendly as the uniform bricks require less mortar and they steer away from the more common practice of fire burned bricks (which consume large amounts of firewood).

On top of that they look nice too!

To learn more about the bricks and groups out there promoting their use, visit:

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