This experimental study was aimed at evaluating the effect of plastic
fibres waste on the physical and mechanical performances of mortars
prepared and conserved under hot-dry conditions. The used fibres are
recycled polypropylene fibres coming from industrial waste. Two dosages
of fibres are used 0.5 and 1 % by weight. The results showed that the
exposition of mortars to hot-dry conditions reduces their long-term
mechanical strength and increases their shrinkage. Under hot-dry
conditions, the reinforcement of mortars by plastic fibres waste has a
positive effect on their flexural and compressive strength. The
shrinkage of mortars conserved under these conditions is reduced by the
addition of plastic fibres waste.
This study contributes to enrich the fibres mortars researches. For
technico-economical and environmental interests, we used local materials
coming from natural and industrial waste, such as the sand and fibres.
It is one of very few studies which have investigated the effect of
hot-dry conditions on the properties of mortars.
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This study received no specific financial support.
The authors declare that they have no competing interests.
All authors contributed equally to the conception and design of the study.