The Evaluation of Mechanical Properties in Concrete using Polyethylene as Admixture

Abstract

This study examined the effect on some concrete’s mechanical

properties using polyethylene (PE) as admixture. These have become

imperative due to the environmental pollution these waste plastics

constitute in our society. The experimental research design was used

in this work. The pulverization of the PE was done in order for it to

blend with the concrete. The percentages of the pulverized PE in the

concrete were 5 %, 10 %, and 15 % by weight of sand. The

preparations of various types of concrete specimens were carried

out. The concrete specimens were tested for flexural and

compressive strength at a curing period of 3 days, 7 days, 14 days,

and 28 days respectively. Results obtained show a reduction in the

compressive and flexural strength at 5 % and 10 % by weight of the

PE concrete at 28 days of curing duration. However, there was a

gradual increase in compressive and flexural strength at 15 % by

weight of PE concrete at 28 days of curing period but below the

control’s concrete by 8.2 % and 11.1 % in compressive and flexural

strength respectively. Therefore, polyethylene has a prospect of

being used in concrete, especially in the construction industry.