Gram, Hans-Erik. <br/><br/>
Natural fibre concrete: Report from a SAREC-financed research and development project. 

 - Stockholm :  SAREC,  1984. 
<br/><br/> Looks at how natural fibre such as sisal can be used to reinforce conrete in roofing which is a vital problem in developing countries. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Construction Materials.<br/>Concrete -- Natural fibres -- Developing countries.--Concrete -- Natural fibres -- Developing countries.--Concrete -- Natural fibres -- Developing countries.