Ngugi Murage -Humanist, researcher, environmentalist, project coordinator and agribusiness entrepreneur.
Rammed Earth sample Blocks
Rammed Earth in Kenya
Build a home in the shortest time possible. Save on labour costs.
A technology that uses available resources to all, we use locally available materials. Save upto 70% on building costs.
: Advantages: sound proof, even temperatures, fire proof, pest deterrent, bullet proof and has good load bearing.
This technology has been used for thousand of years. Very durable and strong structures.
: We have a number of ongoing projects. We do a soil test in your site before we commence so as to deliver the best ratio for your construction.
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Rammed Earth can be used to construct Residential Houses, Fences, Animal Sheds, Fire places, Benches, Rental Houses, Offices, Outside Shades, Car Ports .... Ideal for all constructions.
We consult with our architects to also provide you with a house design. For landscaping also do talk to us to connect you with the experts.
Let's attain one of the Big 4 Agenda - Affordable Housing for All
Let's empower the youth to reduce unemployment and create affordable housing for all. Straw strengthens your structures.
Save our environment with Rammed Earth Houses. Natural, Environmental friendly, durable, strong, tough and built to last a lifetime.
: The roll and soap tests
A.1 The roll test
To find if the soil is suitable for rammed earth (see Figure A.1).
A.1.2.1 Take a handful of unsieved soil, moisten, make into a ball, and leave to dry in the sun. If it
falls apart it has too little clay, and is thus unsuitable for rammed earth: look for another soil source.
A.1.2.2 If the ball remains together when dry, crush the soil to remove any lumps. Add water slowly.
Make a ball and place it on hard ground. Take a 10 mm diameter reinforcing bar, 500 mm long, and
stand it vertically, with its end resting on the middle of the ball of damp soil. Let it sink in under its own
weight. (Do not push it). When the bar sinks in exactly 20 mm the water content is right for doing the
A.1.2.3 Take enough of the damp soil to form a ball in your hands; then between your hands form into
a roll 25 mm thick and 200 mm long. Place the roll on a table, and push it gently over the edge.
Measure how long it gets before it breaks off. Check the length of the piece that drops.
If the roll breaks off less than 80 mm, there is not enough clay. If the roll breaks off longer than 120
mm, there is too much clay.
NOTE Any other suitable test method can be used.
A.2 The soap test
To find out if the soil is mainly clay or silt (see Figure A.1).
Take a handful of the soil you are testing, and damp it slightly in a bowl. Take a lump of this soil and
rub it between your hands as if washing them with soap.
(1) If the soil sticks to your hands and washes off only with difficulty, the soil contains too much
clay; it may need mixing with another soil before it can be used for rammed earth.
(2) If the soil does not stick much and washes off easily, the soil is sandy or silty; it may be
usable for rammed earth as it is
Next Blog - How to set and do a rammed earth
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