Application of fiber reinforced cement composites in rigid pavements: A review

Abstract

Concrete that has been reinforced with fibers has more structural integrity. It has uniformly distributed, short discrete fibers that are randomly orientated. The volume of fibers, the aspect ratio of the fibers, and other variables all have an impact on the flexural strength of FRC. In this essay, each of the criteria is covered. Carbon dioxide pollution in the atmosphere is attributed to cement manufacture. According to studies, producing one ton of cement results in the release of nearly half a ton of CO2 into the environment. In order to lower carbon footprints and create sustainable pavements, the cement content must be decreased. Due to the enormous design thickness required by conventional plain cement concrete, it is necessary to increase the flexural strength of concrete to reduce pavement thickness. Concrete's flexural strength is increased by the addition of fibers, and pavement design thickness is decreased. Cement use and CO2 emissions will decrease with a reduced design thickness. As a result, the application of FRC can significantly lower the carbon emissions of pavement per unit area linked to the manufacture of materials. Calculations of the cost of paving per unit area reveal that Glass Fibers, Polypropylene Fibers, and Hooked Steel Fibers are more cost-effective reinforcement options. The paper reviews the academic literature on fiber-reinforced concrete through a methodical literature study A keywords analysis is done to find out the most focused fiber. This study describes several fiber kinds and their impact on the mechanical characteristics of concrete. The characteristics of steel, plastic, synthetic, recycled, and natural fibers are widely covered in this essay. A comparative examination of several fiber kinds at various replacement percentages is carried out. The economic and environmental advantages of FRC in rigid pavements are discussed.