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Performance Enhancement of Recycled Concrete Aggregates

Performance Enhancement of Recycled Concrete Aggregates

Performance enhancement of recycled concrete

Jan 20, 2016  Recycled concrete aggregate differ from natural aggregate as the former contains hardened cement mortar. The adhered cement mortar on recycled concrete aggregate

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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

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Performance enhancement of recycled concrete aggregate – A ...

Therefore, it will facilitate the applications of recycled concrete aggregate if the adhered cement mortar can be enhanced. Removing and strengthening the adhered

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Performance Enhancement of Recycled Concrete Aggregates ...

Performance Enhancement of Recycled Concrete Aggregates through Carbonation. The cement paste attached to natural aggregates has a significant effect on the quality

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Performance Enhancement of Recycled Concrete Aggregates ...

Mar 18, 2015  The sequestration of carbon dioxide into recycled aggregates for the enhancement of recycled aggregate concrete has provided an abundance of potential over

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Performance Enhancement of Recycled Concrete Aggregates ...

AbstractThe cement paste attached to natural aggregates has a significant effect on the quality of recycled concrete aggregates (RCAs) because it usually has

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Performance enhancement of recycled concrete aggregate-A ...

enhancing the properties of recycled concrete aggregate. This paper reviews the published enhancement methods for recycled concrete aggregate, and points

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Enhancement Treatment of Recycled Concrete Aggregate

Jul 22, 2021  Aggregate is an essential component in concrete, occupying 60–70% of the concrete by volume. Nevertheless, the application of natural aggregate (NA) is

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Performance enhancement of permeable asphalt mixtures with ...

The incorporation of recycled concrete aggregate (RCA) in permeable asphalt mixtures (PAMs) is an efficient method of utilizing construction demolished waste. It

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Performance Enhancement of Recycled Concrete Aggregates ...

Performance Enhancement of Recycled Concrete Aggregates through Carbonation. 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.

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Performance enhancement of recycled concrete aggregates ...

Performance enhancement of recycled concrete aggregates through carbonation ... 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. ... values of the RCAs. It, thus, increased the ...

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Performance enhancement of recycled concrete aggregate - A ...

Jan 20, 2016  Performance enhancement of recycled concrete aggregate - A review. Shi, C Li, Y Zhang, J Li, W Chong, L Xie, Z. ... This paper reviews the published enhancement methods for recycled concrete aggregate, and points out their advantages and disadvantages so as to facilitate the selection and further development of suitable enhancement methods for ...

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Performance enhancement of permeable asphalt mixtures with ...

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.

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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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Performance Evaluation of Strengthening Recycled Coarse ...

Dec 28, 2020  This study mainly focused on coarse aggregates with particle size of 4.75–26.5 mm. Due to a large number of impurities on the surface of the RCA reprocessed from CD waste, it needs to be washed and dried before testing. RCA mainly includes recycled concrete aggregate and recycled

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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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Using Recycled Industrial Materials in Roadways

Performance Benefits Industrial materials offer significant performance enhancement benefits. For example, steel slag, when used as an aggregate for asphalt roadway riding surfaces, has a high-friction surface that makes driving safer. Using fly ash as a partial replacement for portland cement in concrete enhances the durability and

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A review of experimental results on structural performance ...

Jun 30, 2020  Then, the behavior of reinforced recycled aggregate concrete columns under concentric and eccentric compressive loads and the seismic performance under low cyclic loading are discussed. The similarities and the differences between reinforced recycled aggregate concrete and reinforced natural aggregate concrete beams and columns are highlighted.

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Flexural performance of reinforced concrete beams made by ...

This article analyzes the flexural performance of reinforced concrete beams produced by granulated blast furnace slag (GBFS) as a substitute for cement, recycled block aggregates (RBA) as an alternate for ordinary coarse aggregate, normal steel fiber and staplers and polypropylene fibers. Ten reinforced concrete beams with a cross section. 90 mm wide, 150 mm depth and a length of 1000 mm were ...

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Performance studies on concrete with recycled coarse ...

recycled aggregate in concrete is by incorporating 25-35% of fly ash since some of the drawbacks induced by the use of recycled aggregate in concrete could be minimized. Valuable information on the durability effects and design method for RAC have been studied by Kwan . et al. (2012).

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史才军_百度百科

48.Jiake Zhang, Caijun Shi, Yake Li, Xiaoying Pan, Chi-Sun Poon, and Zhaobin Xie, Performance Enhancement of Recycled Concrete Aggregates through Carbonation. Journal of Materials in Civil Engineering, 2015, 27(11), pp. 04015029. (SCI, EI)

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Performance studies on concrete with recycled coarse ...

Dec 25, 2016  Concrete continues to be the most consumed construction material in the world, only next to water. Due to rapid increase in construction activities, Construction and Demolition (CD) waste constitutes a major portion of total solid waste production in the world. It is important to assess the amount of CD waste being generated and analyse the practices needed to handle this waste from

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Sustainability Free Full-Text Properties of Steel ...

Reutilizing industrial by-products and recycled concrete aggregates (RCA) to replace cement and natural aggregates (NA) in concrete is becoming increasingly important for sustainable development. Yet, experimental evidence is needed prior to the widespread use of this sustainable concrete by the construction industry. This study examines the performance of alkali-activated slag concrete made ...

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Performance Enhancement of Recycled Concrete Aggregates ...

Performance Enhancement of Recycled Concrete Aggregates through Carbonation By Jiake Zhang, Caijun Shi, Yake Li, Xiaoying Pan, Chi-Sun Poon and Zhaobin Xie Cite

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[PDF] Treatments for the Improvement of Recycled Aggregate ...

The microstructure of recycled aggregate prepared from the crushing of old concrete was studied. It was found that the recycled aggregate is covered with loose particles that may prevent good bonding between the new cement matrix and the recycled aggregate. The old cement paste that remained on the natural aggregate was porous and cracked, leading to weak mechanical properties of the recycled ...

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Performance studies on concrete with recycled coarse ...

recycled aggregate in concrete is by incorporating 25-35% of fly ash since some of the drawbacks induced by the use of recycled aggregate in concrete could be minimized. Valuable information on the durability effects and design method for RAC have been studied by Kwan . et al. (2012).

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Research on Performance Enhancement of Waste Concrete ...

Cite this article: DING Hai-bo. Research on Performance Enhancement of Waste Concrete Aggregate Based on Wrap Slurry Technology[J]. China Journal of Highway and Transport, 2016, 29(8): 36-42.

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Performance studies on concrete with recycled coarse ...

Dec 25, 2016  Concrete continues to be the most consumed construction material in the world, only next to water. Due to rapid increase in construction activities, Construction and Demolition (CD) waste constitutes a major portion of total solid waste production in the world. It is important to assess the amount of CD waste being generated and analyse the practices needed to handle this waste from

get price

Impurities of recycled concrete aggregate - types, origin ...

Sep 18, 2019  Impurities of recycled concrete aggregate - types, origin and influence on the concrete strength parameters. Justyna Jaskowska-Lemanska 1. ... Shi C., Li Y., Zhang J., Li W., Chong L. and Xie Z. 2016 Performance enhancement of recycled concrete aggregate - A review J.

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Composites Prepared with Recycled Polymer Concrete

Jan 30, 2020  materials Article Performance Evaluation of the Polyurethane-Based Composites Prepared with Recycled Polymer Concrete Aggregate Wenbo Ma 1, Zenggang Zhao 1, Shuaicheng Guo 2,*, Yanbing Zhao 3, Zhiren Wu 4 and Caiqian Yang 1,* 1 College of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China; [email protected] (W.M.);

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caijun-shi UBC Civil Engineering

Design, properties and applications of HPC/UHPC; Performance enhancement of recycled concrete aggregates; Chemically-activated cementitious materials and structural design; CO2 Sequestration in concrete materials and products; Chloride migration in concrete; Characterization and utilization of industrial by-products and wastes; Design and production of cement grinding aids and concrete ...

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Effects of maximum particle size of coarse aggregates and ...

May 30, 2021  The recycled aggregate concrete with the maximum particle size of 19 mm had the highest mechanical properties and impact resistance. Besides, with the increase of steel fiber content, the compressive strength, splitting tensile strength, and impact resistance of recycled aggregate concrete showed an increasing trend.

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史才军_百度百科

48.Jiake Zhang, Caijun Shi, Yake Li, Xiaoying Pan, Chi-Sun Poon, and Zhaobin Xie, Performance Enhancement of Recycled Concrete Aggregates through Carbonation. Journal of Materials in Civil Engineering, 2015, 27(11), pp. 04015029. (SCI, EI)

get price

Sulfate Resistance of Recycled Aggregate Concrete with ...

There is a constant drive for the development of ultra-high-performance concrete using modern green engineering technologies. These concretes have to exhibit enhanced durability and incorporate energy-saving and environment-friendly functions. The object of this work was to develop a green concrete with an improved sulfate resistance. In this new type of concrete, recycled aggregates from ...

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Mechanical and Post-Cracking Performance of Recycled ...

Reuse of concrete waste in novel construction is becoming very important topic nowadays. This study focuses to examine the post-cracking and mechanical performance, fracture behavior, and micro-structure of fiber strengthened recycled aggregate concrete (RAC).

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Flexural performance of reinforced concrete beams made by ...

This article analyzes the flexural performance of reinforced concrete beams produced by granulated blast furnace slag (GBFS) as a substitute for cement, recycled block aggregates (RBA) as an alternate for ordinary coarse aggregate, normal steel fiber and staplers and polypropylene fibers. Ten reinforced concrete beams with a cross section. 90 mm wide, 150 mm depth and a length of 1000 mm were ...

get price

Progress in developing self-consolidating concrete (SCC ...

Feb 19, 2020  Recycled concrete aggregate (RCA) derived from demolition waste has been widely explored for use in civil engineering applications. One of the promising strategies globally is to incorporate RCA into concrete products. However, the use of RCA in high-performance concrete, such as self-consolidating concrete (SCC), has only been studied in the past decade.

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