FIBRE REINFORCED LIGHTWEIGHT AGGREGATE CONCRETE

摘要

In this paper the experimental programme and its results about lightweight aggregate concrete (LWAC) reinforced with fibres is described. The aim was to reduce the brittle material behaviour of LWAC by adding steel and/or polypropylene fibres. Within two test series 16 different fibres or fibre mixes were used with two different fibre contents. The main task was to find an optimal fibre proportion for the used LWAC mix and to compare the performance of the fibres with results stated in the literature. One of the findings is that steel fibres increase the ductility of LWAC, but some fibres showed a complete different behaviour than known from normal weight concrete.