Shelter-Technical briefs    

Small Lime Kiln for Batch and Continuous Firing

In 1996 ITDG (now Practical Action) commissioned Paragon Ceramics Ltd to build an experimental lime kiln at Dedza in Malawi. Paragon designed the kiln in partnership with local lime burners. It works with a variety of fuels and can be operated as a batch or continuous production kiln. Where wood is the only fuel option, the kiln works well burning softwood which could be grown on a managed plantation. Good quality hydrated lime and lime putty have been produced for building. These notes are a practical guide on how to build the kiln, and explain its operation. Because it is experimental the Dedza kiln is small. Anyone who wishes to build a bigger kiln should seek further advice.  Read more…

For further information: http://practicalaction.org/)

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Compost Toilets

Many types of compost toilets are available today. They are designed to suit a variety of customs, cultures and climates, and vary enormously in price. Composting of human faeces is as old as the hills - it is Nature's way of safely reintegrating human waste with the soil. All compost toilets, however simple or complex, are devices for helping Nature achieve this. Contrary to popular opinion compost toilets can be very clean and hygienic and do not smell. Read more….

 For further information:http://practicalaction.org/)

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Micro-Concrete Roofing Tile Production

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Much attention has been paid to developing the small-scale production of concrete roofing tiles as an affordable alternative to both traditional roofing materials, such as thatch, and modern, mass-produced, often inappropriate, galvanized iron sheeting or asbestos cement. These tiles are relatively low in cost, durable (with a life span expected to exceed 20 years in most areas), aesthetically acceptable, able to offer adequate security and comfort, and provide protection from both the heavy rain and the hot sun. Read more….

For further information: http://practicalaction.org/

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