An economical processing technique to improve RAP inclusive concrete properties
TL;DR: In this paper, the Abrasion and Attrition (AB&AT) technique was used to improve the quality of RAP by removing the contaminant layers of dust and punching the asphalt film adhering to RAP aggregates.
About: This article is published in Construction and Building Materials.The article was published on 2017-09-01. It has received 64 citations till now. The article focuses on the topics: Properties of concrete.
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01 Jan 2014
TL;DR: In this paper, 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, which ensured excellent rutting resistance while providing longer fatigue life compared to virgin mixtures and most lowered critical cracking temperature.
Abstract: 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.
214 citations
TL;DR: In this article, the authors present a life cycle inventory analysis of reclaimed asphalt pavement (RAP) in portland cement concrete (PCC) as an aggregate replacement for pavement applications.
90 citations
TL;DR: The objective of this review article is to provide future researchers with the latest research findings, limitations and improvements in this subject and to prove that most solid waste materials have both environmental and economic benefits when applied in field.
85 citations
TL;DR: In this paper, the authors investigated the potential of waste originating from road sector (RAP) and agricultural industry (Sugarcane Bagasse Ash) for production of concrete mixes.
72 citations
TL;DR: In this article, the authors investigated the properties of ABTRAP (Beneficiated RAP aggregates by Abrasion & Attrition technique) inclusive concrete by incorporating mineral admixtures such as Silica Fume (SF), Fly ash (FA) and Sugarcane Bagasse Ash (SCBA).
68 citations
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TL;DR: In this article, the influence of moisture states of natural and recycled aggregates on the properties of fresh and hardened concretes was investigated, and the results suggested that an AD aggregate that contains not more than 50% recycled aggregate is optimum for producing normal strength recycled aggregate concrete.
678 citations
TL;DR: In this article, 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, which ensured excellent rutting resistance while providing longer fatigue life compared to virgin mixtures and most lowered critical cracking temperature.
307 citations
TL;DR: In this article, an attempt has been made to utilize waste rubber tire as partial replacement of fine aggregate in the form of rubber ash and rubber ash with rubber fibers (combined form) with three w/c ratios.
294 citations
TL;DR: In this paper, the results of an experimental study on properties of concrete prepared with recycled mortar aggregate (RMA) that has been modified by a CO2 curing method were presented.
Abstract: The paper presents the results of an experimental study on properties of concrete prepared with recycled mortar aggregate (RMA) that has been modified by a CO2 curing method. The experimental investigation was conducted in two parts. Firstly, the properties such as density, 10% fine value, and water absorption of CO2 improved RMA were determined. Secondly, the fresh, hardened and durability properties including slump, compressive and tensile splitting strength, drying shrinkage and chloride penetrability of the concretes prepared with RMA and CO2 cured aggregates (CI-RMA) were determined. It was found that the density, and 10% fine value of the CI-RMA was higher, and the water absorption of the CI-RMA was lower when compared to the untreated RMA. For the concrete, not only was there an improvement in the mechanical properties and resistance to chloride ion penetration for the concrete prepared with CI-RMA, but also the drying shrinkage was decreased.
255 citations
TL;DR: In this article, the authors investigated the mechanical properties of RAP-incorporated Portland cement concrete and found that the energy absorbing toughness for the RAP incorporated concrete has been significantly improved.
221 citations