Influence of presaturated coconut fibre ash pellets in concrete

Abstract

River sand is becoming increasingly scarce. As a result, an alternative material is required to replace river sand in order to save river sand. In the construction of quality concrete, artificial aggregate is now frequently employed as a substitute for river sand. Coconut fibre ash (CFA) aggregate obtained from Coconut fibre is prevalent in India. Partially replacing river sand (fine aggregate) with presaturated CFA aggregate for self curing purpose is presented in the paper. Fine aggregates were replaced by CFA aggregate by 5%, 10%, 15%, 20% and 25% by volume. The workability and strength characteristics of the concrete are studied. Internal curing is the solution to today's water scarcity's insufficient curing. During compared to other mixtures, test results show that the concrete mix with 20% CFA aggregate produced better results when self curing.

Experimental investigation on the influence of cenosphere on mechanical and rheological properties of Portland cement pastes

“…In a cement mantle, sufficient water should be incorporated to seal the voids present among solid particles [47][48][49][50][51][52][53][54][55]. If the voids are unfilled, the air may entrain into the concrete and that may result in strength reduction [56][57][58][59][60][61]. Hence in this research, the cenosphere content is varied for different W/C ratios to assess the mechanical and rheological properties.…”

Sustainable utilization of cement kiln dust and GGBS in the development of eco-friendly concrete composite

“…In the arena of waste reduction, substituting industrial by-products for conventional concrete ingredients becomes a viable remedy. Appropriate utilization of by-products considerably reduces the waste accumulation and the cost of concrete production [50][51][52][53][54][55][56][57][58][59]. To save the environment from degradation, the utilization of industrial by-products becomes the need of the hour.…”