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Adhesion of Recycled Concrete Aggregates, Demolition ...

2014-9-2  (2014). Adhesion of Recycled Concrete Aggregates, Demolition Debris, and Asphalt. Petroleum Science and Technology: Vol. 32, No. 21, pp. 2584-2591.

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Adhesion of recycled concrete aggregates, demolition ...

2019-5-16  that achieved satisfactory adhesion results as well. Keywords: asphalt, recycled concrete aggregates, adhesion, bond, treatments 1. Introduction Construction materials made with recycled concrete aggregates (RCA) from construction and demolition waste (CDW), such as concrete

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(PDF) Adhesion of Recycled Concrete Aggregates, Demolition ...

Ignacio Pérez Pérez. A laboratory study of the use of recycled concrete aggregates (RCAs) from construction and demolition waste (CDW) in hot-mix asphalt (HMA) for

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Adhesion of recycled concrete aggregates, demolition ...

Adhesion of recycled concrete aggregates, demolition ...

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Adhesion between Asphalt and Recycled Concrete Aggregate ...

2018-12-12  To study and evaluate the adhesion between recycled concrete aggregate and asphalt, the contact angles (CAs) between droplet (water and ethanol) and recycled concrete aggregate (RCA), natural aggregates, and solid bitumen (matrix asphalt, SBS modified asphalt) were tested via the sessile drop method with an optical microscope.

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Performance enhancement of recycled concrete aggregate –

2016-1-20  3. Removal of adhered mortar. Mechanical grinding, pre-soaking in water/acid are the common methods to remove the adhered mortar. Mechanical grinding is a popular treatment because of the simple procedure to produce high quality RCA (Sun and Xiao, 2004).However, mechanical grinding could easily damage RCA due to collision and grinding by introducing micro-cracks.

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The Experimental Study of the Utilization of Recycling ...

2020-6-25  and the quality of recycled coarse aggregates does not allow them to be used as a 100% substitute for natural aggregates. Kalinowska-Wichrowska et al. [16] proposed a new thermal-mechanical method allowing for the overall processing of concrete debris, which resulted in a high-quality recycling aggregate and recycling mortar.

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Design of structural concrete mixtures containing fine ...

2020-8-20  Both natural and recycled aggregates characterization was performed through a water absorption at 24 h test and bulk density, according to the following standards: NBR NM 53 for NCA and NBR NM 52 for fine aggregates (NFA and FRCA). As the absorption is a major issue for the RCAs, the attached paste, responsible for this increase on absorption, was quantified based on literature and

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Adhesion Problems in the Recycling of Concrete Pieter C ...

The translation of this general problem into terms of materials science is possible by forming clear ideas of adhesion and cohesion: the whole process of demolition, fragmentation, and recycling or re-use of concrete is to break the bonding forces between atoms and molecules and to form new bonds across the interfaces of various particles of ...

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Adhesion between Asphalt and Recycled Concrete Aggregate ...

2018-12-12  To study and evaluate the adhesion between recycled concrete aggregate and asphalt, the contact angles (CAs) between droplet (water and ethanol) and recycled concrete aggregate (RCA), natural aggregates, and solid bitumen (matrix asphalt, SBS modified asphalt) were tested via the sessile drop method with an optical microscope.

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Binder–aggregate adhesion and resistance to permanent ...

2016-8-15  The samples were made with two different sources of aggregates. On the one hand, aggregate from construction and demolition waste was recycled, mainly composed of concrete, mortar and stone with a certain proportion of impurities including ceramics, metal pieces, gypsum, plastics and glass ().On the other hand, a hornfels, a common metamorphic siliceous NA extracted from a local

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Adhesion Problems in the Recycling of Concrete Pieter C ...

The translation of this general problem into terms of materials science is possible by forming clear ideas of adhesion and cohesion: the whole process of demolition, fragmentation, and recycling or re-use of concrete is to break the bonding forces between atoms and molecules and to form new bonds across the interfaces of various particles of ...

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Adhesion between Asphalt and Recycled Concrete Aggregate ...

2018-12-12  Recycled concrete aggregates (RCA) are less than 40 mm in particle size and are produced from waste concrete after sorting, carving, crushing, and grading. RCA can be widely used in non-load-bearing structural concrete, such as foundation cushions, gutters, drainage troughs, coastal protection dikes, and so on.

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Properties of recycled aggregate concrete - IIT Madras

Recycled aggregate concrete can utilise demolition material from concrete and masonry constructions. Though several studies have been made on the reuse of concrete waste, only limited studies have been made with respect to use of demolished brick masonry as aggregate. An attempt has been made in thi

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Concrete with Recycled Concrete Aggregates

2021-2-25  Coarse aggregates are responsible for forming a resistant and stable mineral skeleton in paving concretes. In this work, all the coarse aggregates used in the pervious concrete composition consisted of concrete waste selected from CDW (Figure1). This material was extracted from different types of construction and demolition works carried out on ...

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Use Of Recycled Aggregates From Demolition Wastes In ...

Concrete is one of the most used materials in engineering and is a paradigm of the consumption of rocks for aggregates, used in polluting industries such as cement production. In trying to reduce the consumption of natural resources, efforts are being made to use waste as recycled aggregates.

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Utilization of Recycled Concrete Aggregates in Stone ...

2014-12-17  Recycled concrete aggregate (RCA) is considered as one of the largest wastes in the entire world which is produced by demolishing concrete structures such as buildings, bridges, and dams. It is the intention of scientists and researchers, as well as people in authority, to explore waste material recycling for environmental and economic advantages.

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Technical Factsheets Construction Demolition Waste ...

2018-4-23  Technical Factsheets Construction Demolition Waste Recycled Aggregates (example The Netherlands) Recycling of Construction Demolition Waste (CDW) is a success story in some Member ... Concrete aggregate for instance results in higher stiffness values than mixed . 1) C, ,,,

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Sustainable production of recycled concrete aggregates by ...

2021-1-25  Apart from aiding the environment, exploitation of recycled concrete aggregate (RCA) as a potential substitute for natural aggregates (NA) contributes to a framework of sustainable development as well as helps in maintaining an ecological balance by avoiding fast depletion of natural resources of aggregates.

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Recycled construction and demolition concrete waste as ...

2017-1-14  Recycled construction and demolition concrete waste as aggregate for structural concrete Ashraf M. Wagih a, Hossam Z. El-Karmoty b,*, Magda Ebid c, Samir H. Okba d a Environmental Engineering Dept., Institute of Environmental Research Studies, Ain Shams University, Egypt b Building Material and Quality Control, Research Institute, Housing Building, National Research

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Utilization of Recycled Concrete Aggregates in Stone ...

2014-12-17  Recycled concrete aggregate (RCA) is considered as one of the largest wastes in the entire world which is produced by demolishing concrete structures such as buildings, bridges, and dams. It is the intention of scientists and researchers, as well as people in authority, to explore waste material recycling for environmental and economic advantages.

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A REVIEW OF RECYCLED CONCRETE AGGREGATES AS A

2020-10-9  recycled concrete aggregates (RCA) [4]. Initially, the recycled aggregate (RA) was used for non-structural purposes such as fill material, base course material and foundations, however, modern research has shown that it is viable option to use recycled concrete aggregates to replace natural aggregates (NA) in structural concrete.

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Chapter Five - Recycled Concrete Aggregates Recycled ...

Suggested Citation:"Chapter Five - Recycled Concrete Aggregates." National Academies of Sciences, Engineering, and Medicine. 2013. Recycled Materials and Byproducts in Highway Applications—Reclaimed Asphalt Pavement, Recycled Concrete Aggregate, and Construction Demolition Waste, Volume 6. Washington, DC: The National Academies Press. doi: 10 ...

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(PDF) Effects of using recycled concrete as aggregate on ...

Waste concrete produced from demolition of concrete structures is an alternative source for the production of concrete aggregates and acceptance of recycled concrete aggregates for the production of new concrete depends on the quality of them. This

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Current Applications of Recycled Aggregates from ...

A literature review comprising 163 publications published over a period of 26 years from 1992 to 2018 is presented in this paper. This review discusses the generation and recycling of construction and demolition waste (CDW) as well as its main uses as raw materials for the construction engineering s

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Effect of Mixing Method and Polyvinil Acetate Addition

2017-8-18  Keywords: recycled concrete aggregate, mixing methods, concretes properties One of the most important challenges of our present society is the protection of environment. This can be achieved in concrete industry by the replacement of natural aggregates with different types of wastes. The utilization of recycled concrete aggregate (RCA), resulted in

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Use of Recycled Aggregate and Fly Ash in Concrete

2019-7-1  concrete aggregates that are recycled from (1) concrete pavements, and (2) building rubble, for use as a highway construction material (i.e. in structural pavements, shoulders, base, sub base and subgrade in pavements) in the state of Indian. Keywords - Recycled Aggregate, Fly Ash, Concrete

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Decision on End of Waste Criteria relating to Recycled ...

2021-5-25  and use of recycled aggregate from demolition concrete. Compliance with these criteria is sufficient to ensure that the recycled aggregate may be used as a secondary raw material without the need for waste regulation or control. 1.4. This document indicates how compliance should be demonstrated. 1.5.

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Research Article Utilization of Recycled Concrete ...

2019-7-31  Utilization of recycled concrete aggregates as a total replacement of virgin granite aggregate in porous asphalt mixtures was investigated by Chen and Wong [ ]. In this research, Draindown, Cantabro, Marshal, permeability, and ageing tests were carried out to evaluate the performance of the porous asphalt mixtures. Test results indicated that ...

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