Hollow concrete masonry blocks made of low strength self-compacting with recycled crushed brick and ground polystyrene as an aggregate (RBC-EP blocks), their expected structural role infill in steel frames, has been confirmed previous research studies, thus the extensive investigation thermal properties is presented this paper to fully approve potential application practice. The Heat Flow Tempe...

Recycled concrete aggregates and mixed recycled aggregates are specified as types of aggregates with lower densities, higher water absorption capacities, and lower mechanical strength than natural aggregates. In this paper, the mechanical behaviour and microstructural properties of natural aggregates, recycled concrete aggregates and mixed recycled aggregates were compared. Different specimens ...

We study how a manufacturer’s recycled content claim decision is impacted by demand for recycled content through environmentally preferable purchasing (EPP) programs and supply uncertainty. We model a manufacturer making a recycled content commitment that can commit to a minimum recycled content that holds for every period (product specific claim), or an average recycled content across periods ...

Water contamination by potentially toxic metals and the generation of polymeric wastes are major world concerns. Therefore, novel recycled expanded polystyrene nanofibers modified chitosan were successfully developed centrifugal spinning applied as adsorbents on removal lead(II) from water. Expanded was obtained waste food packaging. Characterization presented diameters 806 nm functional groups...

In this work, a complete sorting and characterization of dirty non-recyclable mixed plastic (plasmix fraction) from municipal solid waste was performed. The procedure comprised visual inspection identification the materials presented in bales, subsequent moisture dirt content determination. Afterwards, both polypropylene polystyrene fractions obtained process were recycled physico-mechanically ...

A new and general approach is proposed to analyze the dynamics of a colloidal particle interacting with a nearby wall. This analysis can be used to determine the acting forces even when the system is non-stationary. As an illustration, we use total internal reflection microscopy to investigate the forces acting on a polystyrene sulfate latex particle as it is receding from a charged glass surface.

since reusing waste tire as a cheap filler is considerably high, in this study, recycled rubber to replace nr/br is used up to 15 phr and the positive and negative aspects of the rubber powder and reclaimed rubber in the physical, dynamical and processing properties are evaluated. the results showed that in the presence of recycled rubber, the cure rate, crack growth resistance, tear strength a...

Sweden’s concrete waste is recycled for use in low-utility purposes such as in the construction of sub-bases in roads but hardly as aggregates in new concrete. To analyse the potential for high-utility recycling, a literature study was conducted on the regulatory instruments, building standards, production and properties of recycled concrete aggregates and the recycled aggregate concrete for Sw...