The use of recycled aggregate in concrete in Hong

This paper summarizes the details of the construction of the Hong Kong Wetland Park which consumed approximately 14,300 m3of 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 recycled aggregate in concrete in Hong

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

The use of recycled aggregate in concrete in Hong

This paper summarizes the details of the construction of the Hong Kong Wetland Park which consumed approximately 14,300 m3 of concrete prepared with recycled aggregate. However, as of today, the...

(PDF) HONG KONG EXPERIENCE OF USING RECYCLED

RecyclingIn mid-July 2002, the Hong Kong SAR government established a pilot C&D materials recycling facility in Tuen Mun to produce recycled aggregates for use in government projects and for research and development works. The plant has a designed handling capacity of 2,400 tonnes per day.

(PDF) The Application of recycled aggregate for the

As such, research studies should be carried out for the quality of recycled aggregates which can be produced in Hong Kong.The recycled aggregate could be considered as an option with the economics of the low bid system drives the use of recycled aggregate coupled with the environmental impact on sustainability would give rise to the use of this material.

Environmental Protection Department Recycle

11 行  2013-7-30  Recycle Products for Construction Industry: Aggregate. Sub-base material for

[PDF] A Review on the Use of Recycled Aggregate in

Hong Kong, which generates a significant amount of construction and demolition (C&D) wastes annually, is a mountainous city with a population of about 6.8 million. Due to the rapid development in this territory in the past two decades, the landfills are estimated to be saturated in 6 to 8 years. Therefore, it is of great importance to find viable ways to recycle these wastes in a

Using recycled construction waste as aggregates for

The use of paving blocks made from recycled materials, in particular recycled concrete aggregate derived from demolition waste streams, has gained a wider acceptance in Hong Kong. However, the use of wastes generated from building activities is generally considered unsuitable for this application.

Reuse, Reduction and Recycle of C&D Waste

2012-11-26  in Hong Kong will help but a number of hurdles, both technical and administrative, have to be overcome. This paper will discuss the problem, analysis the current situation and make suggestions to promote a viable market for recycled C&D aggregates. 1. Introduction The construction industry of Hong Kong has generated over 10 million

EFFECT OF RECYCLED AGGREGATE FROM CONCRETE

2015-3-3  2.1 The specification requirements for recycled aggregate are listed in Hong Kong 3.1 Mix proportion of the concrete 3.2 Grading limit fine aggregates accordance BS 882:1992 3.3 Grading limit coarse aggregate accordance BS 882:1992 4.1 Data for sample 4.2 Sieve analysis test results for fine aggregate (sand)

A Review on the Use of Recycled Aggregate in

A Review on the Use of Recycled Aggregate in Concrete in Hong Kong Chi Sun Poon* and Dixon Chan Department of Civil and Structural Engineering, the Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong * (852)-2766-6024; (852)-2334-6389; Email: ABSTRACT: Hong Kong, which generates a significant amount of construction and demolition (C&D)

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

[PDF] A Review on the Use of Recycled Aggregate in

Hong Kong, which generates a significant amount of construction and demolition (C&D) wastes annually, is a mountainous city with a population of about 6.8 million. Due to the rapid development in this territory in the past two decades, the landfills are estimated to be saturated in 6 to 8 years. Therefore, it is of great importance to find viable ways to recycle these wastes in a

Comparative Study on Recycle Aggregate and Natural

2015-6-2  Recycle aggregate is a waste material collected from demolished concrete structure, for this project recycle aggregate is collected from a demolished concrete structure 20% 24.55 30.11 C. S., “Hong Kong Experience of Using Recycled 35.66 40% 23.44 28.62 34.12 60% 15.31 24.29 33.26 80% 12.62 2004.20.61 28.56 100% 10.89 17.89 25.46

recycle aggregate increase water require in concrete

hong kong experience of using recycled aggregates from RECYCLED AGGREGATES FROM CONSTRUCTION AND DEMOLITION MATERIALS IN READY MIX CONCRETE water content required by the recycled aggregates increase in recycled aggregate

EFFECT OF RECYCLED AGGREGATE FROM CONCRETE

2015-3-3  2.1 The specification requirements for recycled aggregate are listed in Hong Kong 3.1 Mix proportion of the concrete 3.2 Grading limit fine aggregates accordance BS 882:1992 3.3 Grading limit coarse aggregate accordance BS 882:1992 4.1 Data for sample 4.2 Sieve analysis test results for fine aggregate (sand)

Quarry Industry in Hong Kong

2021-4-12  Hong Kong Island and the need for rock for buildings and roads, the government began regulating the local quarry industry under a permit system, the first of which was granted in 1844. By 1907, there was 114 permit quarries: 5 on Hong Kong Island, 8 on

PROPERTIES OF RECYCLED AGGREGATE CONCRETE

2015-2-18  the University of Hong Kong recommend that the amount of recycled aggregate in structural concrete should range from 20% to 30%, in order to ensure that the maximum water absorption of aggregate used is less than 5% [6]. It is known that the aggregates from domestic natural resources have negligible absorption, up to

RECYCLE GENERATION COMPANY LIMITED Hong

RECYCLE GENERATION COMPANY LIMITED was incorporated on 2004-01-19 as a Private company limited by shares registered in Hong Kong. It's company registration number is: 0880210. The date of annual examination for this private company limited is between Jan 19 and Feb 29 upon the anniversary of

궻 들 ꝏ The Government of the Hong Kong Special

2010-4-25  38 to recycle hard C&D materials into aggregates. The plant produces coarse The Government of the Hong Kong Special Administrative Region . ETWB TCW No. 24/2004 Page 2 of 3 3. Since April 2003, the Highways Department has incorporated in its The nominal maximum aggregate size of aggregates shall be 10 mm. (3) Notwithstanding sub-clause

Environmental Protection Department Recycle

2013-7-30  Recycle Products for Construction Industry: 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.

A Review on the Use of Recycled Aggregate in

A Review on the Use of Recycled Aggregate in Concrete in Hong Kong Chi Sun Poon* and Dixon Chan Department of Civil and Structural Engineering, the Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong * (852)-2766-6024; (852)-2334-6389; Email: ABSTRACT: Hong Kong, which generates a significant amount of construction and demolition (C&D)

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

Comparative Study on Recycle Aggregate and Natural

2015-6-2  Recycle aggregate is a waste material collected from demolished concrete structure, for this project recycle aggregate is collected from a demolished concrete structure 20% 24.55 30.11 C. S., “Hong Kong Experience of Using Recycled 35.66 40% 23.44 28.62 34.12 60% 15.31 24.29 33.26 80% 12.62 2004.20.61 28.56 100% 10.89 17.89 25.46

Special Issue "New Trends in Recycled Aggregate

2018-9-30  The weaknesses of the existing cement mortar, adhered to a natural aggregate, negatively affect the properties of a recycled aggregate concrete, which prevents its application in reinforced concrete (RC) structures. Recycled aggregate can be classified into several categories, according to its physical and mechanical properties.

环境保护署 建造业可循环再用的产品 再造建造物料名录

2021-4-26  Hong Kong Museum of Art, Siu Lun Government Complex, Girl Special School, Sai Kung Tseung Kwan O Government Complex, Science Park, Kai Tak Primary school, School for Social Development for Girls, Court of Final Appeal, Yau Ma Tei Police Station

Quarry Industry in Hong Kong

2021-4-12  Hong Kong Island and the need for rock for buildings and roads, the government began regulating the local quarry industry under a permit system, the first of which was granted in 1844. By 1907, there was 114 permit quarries: 5 on Hong Kong Island, 8 on

궻 들 ꝏ The Government of the Hong Kong Special

2010-4-25  38 to recycle hard C&D materials into aggregates. The plant produces coarse The Government of the Hong Kong Special Administrative Region . ETWB TCW No. 24/2004 Page 2 of 3 3. Since April 2003, the Highways Department has incorporated in its The nominal maximum aggregate size of aggregates shall be 10 mm. (3) Notwithstanding sub-clause

Home Affairs Department Public Services

2021-1-6  The current Scheme Managers are Friends of the Earth (Hong Kong), Christian Action, Salvation Army and Conservancy Association. The current term of operation lasts for three years, from September 2019 to August 2022.

No.2 Aggregate

No.2 Aggregate No.2 Aggregate shall consist of uniform brick, block or stone scraps sized to minus 1/2" and plus 1/8". Must be free of Metal or steel rebar pieces.