The European steel industry produces about 70 million tons/year of by the electric arc furnace (EAF). slag consists 15% weight produced steel, thus from perspective circular economy, it has a high potential as co-product. This research aims to assess an innovative reuse EAF filler in different polymer matrixes: thermoplastic (polypropylene), thermosetting (epoxy resin), elastomeric (nitrile but...

In this study, the presence of hazardous organic chemicals in surfaces containing recycled rubber tires is investigated. Direct material analyses using solvent extraction, as well as SPME analysis of the vapour phase above the sample, were carried out. Twenty-one rubber mulch samples were collected from nine different playgrounds. In addition, seven commercial samples of recycled rubber pavers ...

In this study, a chemical dissolution treatment was used to recover rubber and carbon black (CB) from truck tire scrap, with gas oil acting as the solvent 4-Hydroxy-TEMPO catalyst for reactions. Montmorillonite clay separate solution CB other non-dissolved additives. The recovered were characterized together original scrap sample by XRD, SEM, BET thermal analysis, well FTIR 1H NMR spectral anal...

Abstract The utilization of processed rubber and construction waste in lieu soil as a substrate could improve significantly seismic performance, while addressing the pressing environmental issue how to reutilize dispose of, i.e., automotive tires demolition by-products. In this study, series laboratory tests explore influence recycled tire (RTW) concrete aggregate (RCA) fine particles on compre...

We conducted GDS dynamic triaxial tests to study the change rules of hysteresis curve morphology, axial strain, elastic modulus, and damping ratio waste tire rubber-mixed sand-based subgrade model samples with different rubber particle sizes, mixing amounts, loading times. The research revealed developmental rule curves rubber-mixed-sand under cyclic loading. From analyses comparison stress–str...

Reuse of tire crumb in sport facilities is currently a very cost-effective waste management measure. Considering that incorporation of the waste materials in artificial turf would be facilitated if the rubber materials were already colored green, coatings were specifically developed for this purpose. This paper presents an experimental toxicological and environmental assessment aimed at compari...

Solid waste management is one of the major environmental concern in the United States. Over 5 billion tons of non-hazardous solid waste materials are generated in US each year. Out of which more than 273 million scrap tires (approximately 3.6 million tons) are generated each year. In addition to this, about 3 billion tires are stockpiled. Several studies have been carried out to reuse scrap tir...

Low carbon or near-zero concrete technology is in line with the pillars of sustainable development, where industrial waste low-carbon binders can reduce eliminate consumption Portland cement and natural resources, leading to less environmental pollution. This work presents an experimental study on comparison between alkali-activated materials (also recognized as geopolymers) a traditional cemen...

Physicians and public health professionals working with the U.S. Environmental Protection Agency's Region 8 Pediatric Environmental Health Specialty Unit (PEHSU) received several telephone calls requesting information regarding the safety of recycled tire crumb as a playground surface constituent placed below children's play structures. There were no reported symptoms or adverse health effects ...

Certain Taraxacum species, such as Taraxacum koksaghyz and Taraxacum brevicorniculatum, produce large amounts of high-quality natural rubber in their latex, the milky cytoplasm of specialized cells known as laticifers. This high-molecular mass biopolymer consists mainly of poly(cis-1,4-isoprene) and is deposited in rubber particles by particle-bound enzymes that carry out the stereospecific con...