Properties and composition of recycled aggregates from construction and demolition waste suitable for concrete production

A review on automated sorting of source-separated municipal solid waste for recycling.

Influence of mixed recycled aggregate on the physical – mechanical properties of recycled concrete

Use of recycled aggregates from construction and demolition waste in geotechnical applications: A literature review.

Influence of the amount of mixed recycled aggregates on the properties of concrete for non-structural use

Pre-normative research on the use of mixed recycled aggregates in unbound road sections

Upgrading the quality of mixed recycled aggregates from construction and demolition waste by using near-infrared sorting technology

Two investigative stages are presented in this study, which aim to establish basic standards for the use of calcined paper sludge (CPS) in the stabilization of soils. The soils were stabilized with CPS and with mixtures of CPS and cement (C). The total percentage of binder was between 3 and 6% by weight. The blending ratios (by weight) of the CPS:C mixtures were 50∶50 and 25∶75. The first stage took place in the laboratory, and the second stage, in the field, involved in situ stabilization of 250 m of subgrade using dry-mix methods. The bearing capacity of the stabilized soils was determined in the laboratory. In the second stage, the densities of the subgrade were measured in the field following compaction and deflections at 7 days. Furthermore, the evolution of its unconfined compressive strength (UCS) was measured over 90 days. The results reveal optimal mechanical behavior of the stabilized soil at CPS:C ratios of approximately 25∶75.

Amaia Lisbona

Papers

Pre-normative research on the use of mixed recycled aggregates in unbound road sections

Upgrading the quality of mixed recycled aggregates from construction and demolition waste by using near-infrared sorting technology

Soil Stabilization with Calcined Paper Sludge: Laboratory and Field Tests