Abstract

This experimental study aimed to design a concrete mixture with recycled bottles as an alternative fine aggregates for mass housing projects that will meet the American Society for Testing and Materials (ASTM) requirements in order to help contribute to the industry in saving the environment, to encourage the government to find solutions regarding the disposal to landfills of waste materials and provide new knowledge to the contractors and developers on how to improve the construction industry methods and services by using recycled bottles, and to sustain good product performance and meet recycling goals. A conventional concrete product was compared to concrete with recycled bottles of the same proportions. Observations from the tests performed were conducted in the laboratory where precise data were gathered and completely attained.

Abstract

Abstract

This experimental study presents the effects of human hair additives in compressive strength of asphalt cement mixture as potential binder in road pavement. Human hair is strong in tension and can be used as a fibre reinforcement material. Hair Fibre (HF) is an alternate non-degradable matter is available in abundance and at a very cheap cost. It also creates environmental problem for its decompositions. This elastic property of the HF reinforced in asphalt pavement may produce better stand on traffic loading by the same fundamental mechanism of transferring the high intensity forces imparted at the surface by the wheel loads to lower levels that the subgrade can accommodate without deforming. The experiments made were asphalt mixture with human hair as the experimental group and standard asphalt mixture being the control groups. Human hair added to standard asphalt mixture with three different proportions varying from 3% to 12% by mass of with respect to bitumen. This study proves that adding cement and human hair to asphalt mixture greatly increase the strength of the mixture thus making it a good material for the construction of road pavement. Adding of both cement and human hair to asphalt mixture improves the load bearing capacity of the mixture.