PLASTIC FIBRES FOR INTERLOCKING BLOCKS PRODUCTION

ABSTRACT
This study is aimed at establishing the use of Plastic Fibres for the
production of Interlocking blocks. The density, water absorption
properties and flexural strength of the Fibre based concrete batches were
determined and compared to that of a control batch. The batches were
prepared with a fibre to aggregate ratio of 0.25%, 0.5%, 0.75% and 1.0%,
and the mix design was done based on relevant concrete mix design
codes. The 200mm x 100mm x 60mm block specimens were used for
the flexural strength testing and the specimens were cured in water and
tested after 7, 14, and 28 days, and the water absorption reduces with
addition of fibre. The 0.25 fibre batch absorbed the most water, while
0.83% and 0.5% fibre had the highest density, while 0.25% fibre batch
had the lowest density. Test on flexural strength showed that the addition
of fibre enhances the strength of concrete. The 0.75% fibre batch
produced the highest flexural strength after 28 days.

Keywords:-Plastickfibres, Production, Interlocking Blocks