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Reconstruc*on with compressed interlocking stabilised earth blocks
Gordon Browne Good Earth Trust
Southampton Solent University
* Extensive use of concrete blocks and fired bricks in reconstruc*on are expensive and have a high embodied energy * Cement for concrete and mortar is expensive and o?en difficult to procure.
Deforesta*on is happening in many countries as trees are cut down to fire kilns to meet the demand for bricks
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* Clay or lateri*c soil mixed with sand and 5% cement or other suitable stabiliser * Due to the interlock feature there is only a thin 2-‐5mm mortar joint required to bond the blocks together
Fired bricks can be of a poor quality, and have thick mortar joints
Manual produc*on of ISCEB?
Manually operated machines
Mlodza Primary School in Lilongwe is still sound after 14 years of hard use by 1,000s of students.
Improve poor housing with stabilised earth blocks
Minimal transport and CO2
Rainwater harves*ng tanks using interlocking stabilised compressed earth blocks
Hai* Hurricane Gustav 2008 & Earthquake 2010 A case for earth blocks?
“The majority of the tents did not remain waterproof and required addi*onal tarpaulins. Most tents have an an*cipated life*me of less than 6 months in Hai*, and many are of a poor quality, size or design and are unsuitable for providing family shelter.”
Further details from [email protected]
www.goodearthtrust.org.uk