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recycle aggregate hong kong

The use of recycled aggregate in concrete in Hong Kong ...

T1 - The use of recycled aggregate in concrete in Hong Kong. AU - Poon, Chi Sun. AU - Chan, Dixon. PY - 2007/5/1. Y1 - 2007/5/1. N2 - In 2004, over 20 million tonnes of construction and demolition (C&D) wastes were generated in Hong Kong. Since the local landfills will be saturated in about 8 years, it is important to find a viable way to reuse ...

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The use of recycled aggregate in concrete in Hong Kong ...

2007-5-1 · In order to facilitate the use of recycled aggregate in this region, the Hong Kong government has set up a temporary recycling facility in 2002 and is actively promoting the use of recycled aggregate in concrete.According to the quality control requirements of the recycling facility, the recycled aggregate contained less than 0.5. wt.% of wood and particles less dense

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The use of recycled aggregate in concrete in Hong Kong ...

This paper summarizes the details of the construction of the Hong Kong Wetland Park which consumed approximately 14,300 m 3 of concrete prepared with recycled aggregate. However, as of today, the recycled aggregate being reused is stringently restricted to recycled concrete aggregate (RCA). The use of other wastes such as brick and ceramic tile ...

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The use of recycled aggregate in concrete in Hong Kong ...

In order to tackle the problem, the Hong Kong government has set up a temporary recycling facility in Hong Kong in 2002 for producing different sizes of recycled aggregate for use in various ...

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A Report on the Use of Recycled Aggregates in Low

2013-6-13 · opportunities for recycling C&D materials in the Hong Kong SAR. The preliminary findings indicated that it is possible to use recycled aggregates in unbound road base and low-grade concrete. This study is the follow-up of the desk study to investigate the use of recycled aggregates in low-grade concrete through tests on trial mixes prepared at ...

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Environmental Protection Department - Recycle Products

11 行 · 2013-7-30 · Recycled Materials for Construction Industry. Recycled Materials. Uses.

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Aggregates for Concrete - CEDD - Home

2019-6-13 · Government of the Hong Kong Special Administrative Region. It provides a standard for aggregates obtained from natural sources for concrete production in Hong Kong. It also contains requirements for recycled aggregates which are suitable for production of

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(PDF) Reusing recycled aggregates in structural concrete

For lower grade applications, concrete with 100% recycled coarse aggregate is allowed. Recycled fines are not allowed to be used in concrete. The target

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Construction Standard CS3:2013 – Aggregates for Concrete

2021-4-21 · The University of Hong Kong . 1. Background. The Drafting Committee have reviewed the following specification, technical circular and ... recycled aggregate when combined in use, ≤ 0.05% by mass ...

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A Review on the Use of Recycled Aggregate in Concrete

2010-9-16 · illustrate the barriers that must be overcome to facilitate the wider use of recycled aggregates in concrete in Hong Kong. Keywords: construction and demolition (C&D) waste; recycled aggregate; recycled aggregate concrete 1. INTRODUCTION Hong Kong, with a population of about 6.8 million and about 2.1 million households has a mountainous landscape.

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The use of recycled aggregate in concrete in Hong Kong ...

2020-5-25 · The use of recycled aggregate in concrete in Hong Kong: Authors: Poon, CS Chan, D: Issue Date: 2007: Source: Resources, conservation and recycling, 2007, v. 50, no. 3, p. 293-305: Abstract: In 2004, over 20 million tonnes of construction and demolition (C&D) wastes were generated in Hong Kong. Since the local landfills will be saturated in ...

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Treatment of recycled concrete aggregate to enhance ...

2021-11-8 · The Hong Kong SAR Government has set-up a recycling plant in Tuen Mun Area 38 aiming at turning concrete waste into recycled aggregate with a

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Parameters for assessing recycled aggregate and their ...

Thus it is necessary to recycle concrete waste to preserve landfill areas. Various governmental departments of the Hong Kong Special Administrative Region (HKSAR) are encouraging the use of recycled aggregate (RA) in the Hong Kong construction industry by issuing various guidelines and specifications.

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Enhancement of recycled aggregates ... -

T1 - Enhancement of recycled aggregates and concrete by combined treatment of spraying Ca2+ rich wastewater and flow-through carbonation. AU - Fang, Xiaoliang. AU - Zhan, Baojian. AU - Poon, Chi Sun. N1 - Funding Information: This work was supported by the Research Grants Council GRF (PolyU 152144/17E), and The Hong Kong Polytechnic University.

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(PDF) Reusing recycled aggregates in structural concrete

For lower grade applications, concrete with 100% recycled coarse aggregate is allowed. Recycled fines are not allowed to be used in concrete. The target strength is specified at. 20 MPa and the ...

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Environmental Protection Department - Recycle Products

2013-7-30 · Recycled Materials for Construction Industry. Recycled Materials. Uses. Local examples . Aggregate. Sub-base material for road construction,hardcore for foundation works, base/fill for drainage,aggregate for concrete manufacture and general bulk fill. Pilot studies carried out by works departments. Asphalt. Aggregate fill and sub-base fill.

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Use of aggregates from recycled construction and ...

2007-3-1 · In fact, use of concrete with 100% recycled coarse aggregate for lower grade applications is allowed in Hong Kong, though for higher grade applications (above M35 concrete), only 20% replacement is allowed, and the concrete can be used for general applications, except in water retaining structures.

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Construction Standard CS3:2013 – Aggregates for Concrete

2021-4-21 · The University of Hong Kong . 1. Background. The Drafting Committee have reviewed the following specification, technical circular and ... recycled aggregate when combined in use, ≤ 0.05% by mass ...

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Use Of Recycled Aggregate In Concrete - ijert.org

2019-7-1 · Use of recycled aggregate in concrete can be useful for environmental protection. Recycled aggregates are the materials for the future. The application of recycled aggregate has been started in a large number of ... Hong Kong – Concrete bricks and paving blocks have been successfully produced impregnation of photo catalyst for controlling Nox ...

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Treatment of recycled concrete aggregate to enhance ...

2021-11-8 · The Hong Kong SAR Government has set-up a recycling plant in Tuen Mun Area 38 aiming at turning concrete waste into recycled aggregate with a practice note and specifications issued for ...

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Parameters for assessing recycled aggregate and their ...

Thus it is necessary to recycle concrete waste to preserve landfill areas. Various governmental departments of the Hong Kong Special Administrative Region (HKSAR) are encouraging the use of recycled aggregate (RA) in the Hong Kong construction industry by

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Enhancement of recycled aggregates ... -

T1 - Enhancement of recycled aggregates and concrete by combined treatment of spraying Ca2+ rich wastewater and flow-through carbonation. AU - Fang, Xiaoliang. AU - Zhan, Baojian. AU - Poon, Chi Sun. N1 - Funding Information: This work was supported by the Research Grants Council GRF (PolyU 152144/17E), and The Hong Kong Polytechnic University.

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Recycled Aggregates for Concrete Applications C.S. Poon ...

2013-2-8 · Recycled Aggregates for Concrete Applications C.S. Poon*, S. Azhar and S.C. Kou Department of Civil and Structural Engineering The Hong Kong Polytechnic University Hung Hom, Kowloon, Hong Kong *Email : [email protected] Introduction According to the Environmental Protection Department, a daily average of about 37,690

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[PDF] Microstructural analysis of recycled aggregate ...

2005-6-1 · Abstract Owing to the shortage of space for land reclamation in Hong Kong, it is difficult to dispose of tons of masonry waste generated daily from construction activities. Adoption of recycled aggregate from concrete waste thus becomes a burning issue. The Hong Kong SAR Government has set-up a recycling plant in Tuen Mun Area 38 aiming at turning concrete waste into recycled

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Use of aggregates from recycled construction and ...

2007-3-1 · In fact, use of concrete with 100% recycled coarse aggregate for lower grade applications is allowed in Hong Kong, though for higher grade applications (above M35 concrete), only 20% replacement is allowed, and the concrete can be used for general applications, except in water retaining structures.

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Environmental Protection Department - Recycle Products

2013-7-30 · Recycled Materials for Construction Industry. Recycled Materials. Uses. Local examples . Aggregate. Sub-base material for road construction,hardcore for foundation works, base/fill for drainage,aggregate for concrete manufacture and general bulk fill. Pilot studies carried out by works departments. Asphalt. Aggregate fill and sub-base fill.

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Special Issue "New Trends in Recycled Aggregate Concrete"

2018-9-30 · Department of Civil & Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong M1504, China Interests: recycling and reuse of solid wastes; ... Many of the consequences on the technical, economic and environmental performance of recycled aggregate concrete have been established by the very dynamic research on this subject ...

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Use Of Recycled Aggregate In Concrete - ijert.org

2019-7-1 · Use of recycled aggregate in concrete can be useful for environmental protection. Recycled aggregates are the materials for the future. The application of recycled aggregate has been started in a large number of ... Hong Kong – Concrete bricks and paving blocks have been successfully produced impregnation of photo catalyst for controlling Nox ...

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Construction Standard CS3:2013 – Aggregates for Concrete

2021-4-21 · The University of Hong Kong . 1. Background. The Drafting Committee have reviewed the following specification, technical circular and ... recycled aggregate when combined in

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