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Properties Of Concrete

100% recycled hot mix asphalt lab samples were modified with five generic and one proprietary rejuvenators at 12% dose and tested for binder and mixture properties. Waste Vegetable Oil, Waste Vegetable Grease, Organic Oil, Distilled Tall Oil, and Aromatic Extract reduced the Superpave performance grade (PG) from 94–12 of extracted binder to PG 64-22 while waste engine oil required higher dose. All products ensured excellent rutting resistance while providing longer fatigue life when compared to virgin mixtures and most lowered critical cracking temperature. Rejuvenated samples required more compaction energy compared to virgin and some oils reduced moisture resistance slightly.

Influence of Six Rejuvenators on the Performance Properties of Reclaimed Asphalt Pavement (RAP) Binder and 100% Recycled Asphalt Mixtures

Effect of WMA-RAP technology on pavement performance of asphalt mixture: A state-of-the-art review

Economic input-output life cycle assessment of concrete pavement containing recycled concrete aggregate

Utilization of reclaimed asphalt pavement aggregates containing waste from sugarcane mill for production of concrete mixes.

Effect of mineral admixtures on fresh, mechanical and durability properties of RAP inclusive concrete

Feasibility of roller compacted concrete pavement containing different fractions of reclaimed asphalt pavement

An economical processing technique to improve RAP inclusive concrete properties

The presence of dust, asphalt film and agglomerated particles is considered to be the primary reason for reducing the properties of Reclaimed Asphalt Pavement (RAP)-inclusive concrete. A surface treatment method Abrasion and Attrition (AB&AT) was employed for removing these contaminants. Gaps were identified from the available literatures and efforts have been made to bridge them in order to increase the usage of RAP aggregates in concrete pavements. Six mixes were prepared by partly replacing the Natural Aggregates (NA) with RAP aggregates in different proportions. It was learnt that processing Dirty RAP (DRAP) aggregates by the AB&AT method could remove contaminants considerably as a result of which stronger bonding is exhibited at the interface of the aggregate and hydrated mortar matrix. Incorporation of beneficiated RAP aggregates in concrete improved the workability considerably but it was found to have reduced hardened concrete properties. However, the results were found to lie within the permissib...

Surender Singh

Papers

Utilization of reclaimed asphalt pavement aggregates containing waste from sugarcane mill for production of concrete mixes.

Effect of mineral admixtures on fresh, mechanical and durability properties of RAP inclusive concrete

Feasibility of roller compacted concrete pavement containing different fractions of reclaimed asphalt pavement

An economical processing technique to improve RAP inclusive concrete properties

Feasibility study of RAP aggregates in cement concrete pavements