Some Mechanical Characteristics of Concrete Reinforced With Dried Water Hyacinth and Quarry Dust as Fine Aggregates

Abstract

This paper presents some mechanical properties of concrete reinforced with dry water hyacinth stem and quarry dust as fine aggregates. Fresh water hyacinth stems were collected from Lake Victoria; sun dried for a week and chopped into 3 cm long pieces. Sieve analysis was done for fine and coarse aggregates. Concrete mix designs were done according to Department of Environment (United Kingdom) method. A total of 32 cubes of concrete were cast (16 horizontal orientations of fiber, and 16 vertical orientations of fibers). Dry water hyacinth stems were incorporated during casting of cubes in terms of 0%, 0.1%, 0.2% and 0.3% of the volume of cube. Average compressive and split tensile strength tests were performed after 28 days. The results showed concrete composed of horizontal orientation of dry water hyacinth stem fibers had an average optimum tensile strength of 1.5 N/mm2 corresponding to 0.1% replacement. In vertical orientation, there was uniform decrease in tensile strength as the percentage replacement increased. Compressive strengths decreased slightly as the composition of water hyacinth fibers increased for both vertical and horizontal orientations.

The effect of variation in the length of water hyacinth fiber twisted on split tensile strength high performance fiber concrete

“…The efficiency of plant fiber reinforcement depends on the cellulose content and the crystallization form of the total plant fiber content which includes cellulose, hemicellulose, lignin, pectin and waxes. This fiber content then determines the overall fiber properties (Prasetyaningrum et al, 2009) (Anton, D, 2009) (Kiptum et al, 2019).…”

“…Then the fiber needs to be treated / treated using an alkaline solution (NaOH) to reduce unused fiber elements such as hemicellulose, lignin, pectin and other elements until cellulose remains as the main ingredient in fiber. This alkaline treatment is also useful in removing the remaining fibers in the fiber (Ndoen et al, 2015) (Kiptum et al, 2019).…”

Characteristics of Fibre-Reinforced Cement-Sand Blocks with Quarry Dust as Replacement for Sand

“…Chin et al [30] attempted to develop sustainable green bricks using agro-industrial waste materials including QD. Kiptum et al [31] attempted to study the mechanical characteristics of concrete reinforced with dried water hyacinth with QD as fne aggregates. Kadir et al [32] attempted to characterize the mechanical properties of fred clay bricks incorporated with QD up to 30%.…”