BRE GG29 PDF

This study into the effect of polypropylene fibres on concrete strength accompanies research into the enhancement of fire resistance of high grade concrete from polypropylene fibres. Adding polypropylene fibres to concrete reduces its compressive strength, due to the reduction in density. It may directly affect the design of structural elements.There is no significant loss of flexural strength nor cylinder splitting strength from the fibres. (CD ROM 16/00)