Effects of soot and plastic fibers on the performance of SCC

TL;DR

This study explores how adding recycled plastic fibers and iron oxide waste improves the strength and performance of self-compacting concrete.

Contribution

The novel use of recycled plastic fibers and iron oxide waste as additives to enhance SCC properties is presented.

Findings

Adding recycled plastic fibers and iron oxide waste increased compressive strength by up to 9.68 MPa.

Tensile strength improved by up to 7.44 MPa with these additives.

Fresh and hardened properties of SCC were positively affected by the additives.

Abstract

Self-compacting concrete is regarded as one of the newest types of concrete due to its durability, efficiency, viscosity, stability, flowability, and resistance. Today, one of the most pressing environmental challenges is the disposal of solid waste, and one of the plastic materials discarded as waste after use is plastic packaging belts. These are made on the basis of polypropylene, as well as the factory Iron smelting mines are the main source of iron oxide waste production. Studies using recycled plastic fibers (30 mm × 0.3 mm) and waste iron oxide as cost-effective additives in self-compacting concrete (SCC) are presented. The effects on fresh and hardened properties were evaluated at various additive contents. Fresh and hardened properties of self-compacting concrete (SCC) were evaluated with and without fiber and iron oxide additives. Tests included workability (slump flow, funnel), strength (compressive, tensile), and durability (ultrasonic pulse speed, permeability). Experiments revealed that increasing the amount of recycled plastic fibers and waste iron oxide in self-compacting concrete (SCC) led to higher compressive and tensile strengths at both 7 and 28 days. These strength increases ranged from 2 to 9.68 MPa for compressive strength and 1.61–7.44 MPa for tensile strength, compared to the control specimen without additives.