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enhancement of recycled aggregates and concrete by.

Enhancement of recycled aggregates and concrete by ...

Mar 29, 2021  Performance enhancement of recycled concrete aggregate – a review J. Cleaner Prod. , 112 ( 2016 ) , pp. 466 - 472 , 10.1016/j.jclepro.2015.08.057 Article Download PDF View Record in Scopus Google Scholar

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Enhancement of recycled aggregates and concrete by ...

Enhancement of recycled aggregates and concrete by combined treatment of spraying Ca 2+ rich wastewater and flow-through carbonation. / Fang, Xiaoliang; Zhan, Baojian; Poon, Chi Sun. In: Construction and Building Materials, Vol. 277, 122202, 29.03.2021. Research output: Journal article publication › Journal article › Academic research ...

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Enhancement of recycled aggregate properties by ...

May 01, 2018  Strengthening the attached old cement mortar of recycled concrete aggregate (RCA) is a common approach to enhance the RCA properties. Accelerated CO 2 curing has been regarded as an alternative way to enhance the properties of RA. However, the improvement of the properties of RCA was limited by the shortage of reactive components in the old cement mortar available for the carbonation

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Enhancement of recycled aggregate concrete properties

However, using recycled concrete aggregate (RCA) in concrete involves various obstacles and controversial issues in controlling the quality of recycled aggregate concrete (RAC). This study is an effort to improve the quality of RAC containing 100% coarse RCA by using pozzolanic and sodium silicate solution as new treatment solutions.

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Enhancement of recycled aggregate concrete properties

The quality of Recycled Aggregate (RA) concrete having 100% coarse RCA got improved by using pozzolanic and sodium silicate solution as new treatment solutions. At 20% concentration of sodium ...

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Enhancement of recycled aggregates and concrete by ...

Mar 29, 2021  Performance enhancement of recycled concrete aggregate – a review J. Cleaner Prod. , 112 ( 2016 ) , pp. 466 - 472 , 10.1016/j.jclepro.2015.08.057 Article Download PDF View Record in Scopus Google Scholar

Get Price

Enhancement of recycled aggregates and concrete by ...

Enhancement of recycled aggregates and concrete by combined treatment of spraying Ca 2+ rich wastewater and flow-through carbonation. / Fang, Xiaoliang; Zhan, Baojian; Poon, Chi Sun. In: Construction and Building Materials, Vol. 277, 122202, 29.03.2021. Research output: Journal article publication › Journal article › Academic research ...

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ENHANCEMENT OF RECYCLED AGGREGATE CONCRETE PROPERTIES BY

However, using recycled concrete aggregate (RCA) in concrete involves various obstacles and controversial issues in controlling the quality of recycled aggregate concrete (RAC). This study is an effort to improve the quality of RAC containing 100% coarse RCA by using pozzolanic and sodium silicate solution as new treatment solutions.

Get Price

Enhancement of recycled aggregate concrete properties by a ...

The quality of Recycled Aggregate (RA) concrete having 100% coarse RCA got improved by using pozzolanic and sodium silicate solution as new treatment solutions. At 20% concentration of sodium ...

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Performance Enhancement of Recycled Concrete Aggregates ...

Nov 11, 2015  The cement paste attached to natural aggregates has a significant effect on the quality of recycled concrete aggregates (RCAs) because it usually has higher porosity and lower strength than natural aggregates. This work attempted to improve the quality of RCAs through carbonation of the attached cement paste.

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Enhancement of properties of recycled coarse aggregate ...

4.4 Properties of fine and recycled coarse aggregate Locally available sand (fine aggregate) conforming to IS: 383-1970 [46] is collected from a nearby river and used in the present study. For recycled coarse aggregate, the parent concrete is crushed through a mini jaw crusher maintaining the size of aggregate between 20 and 4.75 mm.

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Performance Enhancement of Recycled Aggregate Concrete ...

Performance Enhancement of Recycled Aggregate Concrete – An Experimental Study. Extensive studies have been performed on the mechanical and durability properties of the concrete prepared with recycled coarse aggregates (RCA), however, only modest consideration has been given to the studies on the behaviour of RAC prepared by alternative ...

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Concrete Sustainability Council

Recycled aggregates plants: Recycling plants are using secondary raw materials for producing sand and aggregates. Main material sources include construction and demolition waste (CDW), concrete rubble and hardened returned concrete. The processing of these materials into sand and aggregates is similar as of hardrock and includes crushing,

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Chemico-thermal treatment for quality enhancement of ...

May 29, 2019  Utilization of recycled concrete fine aggregates to full potential in the construction sector is necessary to increase the ecological value and solves the issues of natural sand scarcity. However, the quality of recycled concrete fine aggregates is inferior to conventional aggregates. Hence, a treatment process is obviously essential for improving the quality of recycled concrete fine ...

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Enhancement of properties of recycled coarse aggregate ...

Due to rapid construction, necessity for raw materials of concrete, especially coarse aggregate, tends to increase the danger of early exhaustion of the natural resources. An alternative source of raw materials would perhaps delay the advent of this early exhaustion. Recycled coarse aggregate (RCA) plays a great role as an alternative raw material that can replace the natural coarse aggregate ...

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Performance of Recycled Aggregate Concrete Made with Waste ...

Concrete containing recycled aggregates have different properties from concrete containing natural aggregates. This work investigates, firstly, the possibility of using recycled refractory bricks (RBA) as coarse aggregate for concrete, and secondly, finds the ideal replacement percentage of natural coarse aggregate (NCA) by RBA. For this, an experimental study was carried out to assess the ...

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(PDF) Technical Guideline for Recycled Aggregate Concrete ...

By the terms of recycled aggregate the Technical concrete in the C8/10 – C45/55 compressive strength class Guideline understands concrete, mixed concrete/brick or range, or light-weight concrete in the LC8/9 – LC25/28 crushed brick. The grouping of so prepared aggregates by compressive strength class range. constituents may be made on the ...

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Svoboda 2021 PDF Concrete Construction Aggregate

The use of recycled aggregates will therefore reduce conditions of the Creative Commons the amount of the used primary raw material—natural aggregates—and, at the same time, Attribution (CC BY) license (https:// will save money spent on the storage and disposal of waste concrete [12].

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Materials Free Full-Text Evaluation of the Effects of ...

Coral concrete has low cost and convenient materials, making it an excellent raw material for processing. However, its lower strength limits the application of coral concrete. Surface modification is expected to increase the properties of porous coral concrete. In this study, single and compound modification treatments were applied to the surface of a coral aggregate to improve its properties ...

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ENHANCEMENT OF RECYCLED AGGREGATE CONCRETE PROPERTIES BY

However, using recycled concrete aggregate (RCA) in concrete involves various obstacles and controversial issues in controlling the quality of recycled aggregate concrete (RAC). This study is an effort to improve the quality of RAC containing 100% coarse RCA by using pozzolanic and sodium silicate solution as new treatment solutions.

Get Price

Performance Enhancement of Recycled Concrete Aggregates ...

Nov 11, 2015  The cement paste attached to natural aggregates has a significant effect on the quality of recycled concrete aggregates (RCAs) because it usually has higher porosity and lower strength than natural aggregates. This work attempted to improve the quality of RCAs through carbonation of the attached cement paste.

Get Price

Performance Enhancement of Recycled Aggregate Concrete ...

Performance Enhancement of Recycled Aggregate Concrete – An Experimental Study. Extensive studies have been performed on the mechanical and durability properties of the concrete prepared with recycled coarse aggregates (RCA), however, only modest consideration has been given to the studies on the behaviour of RAC prepared by alternative ...

Get Price

Performance enhancement of recycled concrete aggregates ...

The cement paste attached to natural aggregates has a significant effect on the quality of recycled concrete aggregates (RCAs) because it usually has higher porosity and lower strength than natural aggregates. This work attempted to improve the quality of RCAs through carbonation of

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Enhancement of properties of recycled coarse aggregate ...

Due to rapid construction, necessity for raw materials of concrete, especially coarse aggregate, tends to increase the danger of early exhaustion of the natural resources. An alternative source of raw materials would perhaps delay the advent of this early exhaustion. Recycled coarse aggregate (RCA) plays a great role as an alternative raw material that can replace the natural coarse aggregate ...

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Environmental Enhancement Through Use of Recycled ...

Environmental Enhancement Through Use of Recycled Aggregate Concrete in a Two-Stage Mixing Approach Vivian W. Y. Tam1, X. F. Gao2, and C. M. Tam3 1 Lecturer, School of Engineering, Gold Coast Campus, Griffith University PMB50, Gold Coast Mail Centre, Qld 9726, Australia

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MICROBIAL CARBONATE PRECIPITATION IN RECYCLED

Aggregates to be used to see the effects that recycled aggregates makes on the strength of the concrete as we can derive from the Literature review that we can replace the Natural Aggregates by Waste concrete aggregates to between 20%-30% and it

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Critical Review of Recycled Aggregate Concrete Properties ...

Nov 11, 2020  Although the properties of recycled aggregate concrete are widely considered to be inferior to those of natural aggregate concrete, research in the field still is of merit due to growing awareness of environmental concerns relating to the concrete construction and demolition industry. In addition, some methods have been proposed to improve the ...

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Recycled Aggregates - Portland Cement Association

Recycled Aggregate Characteristics. The crushing characteristics of hardened concrete are similar to those of natural rock and are not significantly affected by the grade or quality of the original concrete. Recycled concrete aggregates produced from all but the poorest quality original concrete can be expected to pass the same tests required ...

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Concrete Sustainability Council

Recycled aggregates plants: Recycling plants are using secondary raw materials for producing sand and aggregates. Main material sources include construction and demolition waste (CDW), concrete rubble and hardened returned concrete. The processing of these materials into sand and aggregates is similar as of hardrock and includes crushing,

Get Price

Enhancement of properties of recycled coarse aggregate ...

Enhancement of properties of recycled coarse aggregate concrete using bacteria. Due to rapid construction, necessity for raw materials of concrete, especially coarse aggregate, tends to increase the danger of early exhaustion of the natural resources. An alternative source of raw materials would perhaps delay the advent of this early exhaustion.

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Treatment of recycled concrete aggregate to enhance ...

Recycled concrete aggregates (RCA) have received the attention of several researchers over the last few decades to overcome aggregate shortages and to push towards sustainable and environmental-friendly concrete. Nevertheless, utilizing recycled aggregates at a full replacement level may cause a reduction in its fresh, mechanical, and ...

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Mechanical Performance of Concrete Made with Recycled ...

Sep 15, 2020  This research aims at analysing the mechanical performance of concrete with recycled aggregates from concrete pavements. First, the characteristics of various natural and recycled aggregates used in the concrete were thoroughly analysed. The composition of the recycled aggregates was determined and several physical and chemical tests of the aggregates were

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Frontiers Performance Enhancement of Permeable Asphalt ...

Sep 16, 2020  The incorporation of recycled concrete aggregate (RCA) in permeable asphalt mixtures (PAMs) is an efficient method of utilizing construction demolished waste. It not only conforms to the trend of building sponge cities, but also alleviates the problem of overexploitation of natural aggregate resources. As the performance of PAM containing recycled aggregate is not comparable to natural ...

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