The effect of different lengths of polyester fibers on the mechanical properties of concrete

Today, the use of plastic products has increased, and for this reason, the disposal of this plastic waste has become a big problem and has caused many environmental problems. A large part of this plastic waste consists of plastic bottles, which are made of polyethylene terephthalate (PET). In this research, three different lengths of ۱, ۲, and ۳ cm polyester fibers (PF) obtained from recycling plastic or PET bottles were used with a fixed percentage of ۱% by weight of cement as an additive, with a fixed ratio of water to cement in concrete and with ۴ The mixing plan of ۱۲ different concrete samples was made. The compressive strength of concrete was investigated. The lengths of ۱, ۲, and ۳ cm of polyester fibers have increased the compressive strength of concrete by ۴%, ۰.۱%, and ۱۵%, respectively.

Keywords:

Polyester fibers , Polyethylene terephthalate (PET) , Compressive Strength of concrete , environmental problems