In East Africa demand for cement for housing construction exceeds supply, requiring the production of binders to be significantly increased. This book discusses a range of binders, especially lime, lime-pozzolana or special earths, for building purposes. Alternatives such as lime offer great potential in reducing the shortage and cost of building materials, but there are also constraints to increased lime production. The book looks at the pros and cons of OPC compared with alternative binders, and at ways of minimizing the constraints.