Mechanical Properties of Plastic, Steel, Organic Fibre Concrete: A Review

Abstract

The mechanical properties of fibrous concrete reviewed in this research are flexural tensile, compressive, and split tensile strength. This paper is a review of many researchers on plastic, steel, and organic fiber concrete. The plastic fiber reviewed in this paper is a concrete mixture with mineral water glass waste with a volume fraction of 0.25% and L/d 37.5; steel fiber is the straight type while organic fibrous fiber is coconut husks, jute, the leaves of palm oil plants, sisal, hemp, banana leaves, pineapple leaves, bamboo bark, horse dung, rice straw, and gelam-bark. The performance of the three mechanical properties of non-fibrous concrete in each study is calculated in percentage. The mixtures that have superior mechanical properties are 0.5%, 2% steel-fibrous concrete (St0.5 and Sj2), 2% with aspect ratios of 75 and 50 (Ss0.5), 0.6% bamboo-bark fibrous concrete (B0.6) and 0.4% gelam-bark fibrous concrete (G0.4). The St 0.5 and Ss 0.5 showed increased tensile strength in the splitting test, but the increase for St 0.5 of the compressive strength was below B0.6 and G0.4. The B0.6 shows an increase in the splitting test of 45% while G0.4 shows an even increase of ± 7.5% in the three mechanical properties. Flexural tensile strength is not a function of compressive strength. The reduction in the level of ease of mixing in gelam bark fibrous concrete (G0.4) is the lowest compared to bamboo fibrous concrete with a volume fraction of 0.6 and steel-fibrous concrete. The flexural strength and compressive strength of plastic-fiber concrete are 2.1% and 4.7% higher, respectively than non-fiber concrete. The addition of plastic fiber is easier to mix than the addition of steel fiber.

Keywords: concrete, fiber, mechanical properties, organic, plastic, steel

DOI: 10.7176/CER/14-4-04

Publication date:June 30^th 2022