For a sustainable building industry reusable construction with a low demand for primary resources is needed Moreover if we want to reduce the amount of construction and demolition waste construction with recycled aggregate should be considered To investigate the environmental impacts of such concrete construction life cycle assessment LCA was used to
Yates 2013 "Sustainable methods for waste minimisation in construction" Construction Innovation Vol 13 Iss 3 pp 281 301 Access to this document was granted through an Emerald
These materials usually consist of wood steel concrete drywall masonry plaster metal and asphalt waste that comes from houses large building structures roads bridges piers and dams While demolition and construction companies involved in large scale projects create most of this waste homeowner DIYers create a lot of it too through
Materials Excavated natural soil NS and demolished brick masonry DBM waste were sourced and processed prior to being used and the steps involved are presented through Fig nearby local site where excavation for construction was carried out was identified and typical red soil NS having clay content of nearly 20% was selected procured and air
There have been efforts to use building demolition waste as an alternative aggregate in concrete to decrease the use of natural resources for construction The World Green Building Council estimates that the construction industry is responsible for more than 50% of all material extracted globally and that construction and demolition waste makes up 35% of global
2 34 1 Introduction 35 Construction and demolition waste CDW generation has become prominent around the 36 world being one of the largest sectors contributing to global solid waste production 28 37 member states of the European Union generated a total CDW amount of 830 million tons Mt 38 in 2012 which accounts for approximately tons per
Hence demolished brick masonry waste may be used as an alternative to Natural Sand and/or Natural Soil in Masonry Construction which shall deliver energy efficient economical and sustainable
In this regard there has been appreciable work done in Sri Lankan masonry unit construction industry using agro waste such as rice husk rice husk ash coconut shells coconut shell ash cow dung
The Construction Waste Management Centre COWAM is a waste recycling site situated in Galle Sri Lanka According to the COWAM Newsletter March 2007 [10] the concrete waste collected is crushed and sieve sorted at the COWAM Centre Rammed earth is one of the oldest masonry construction techniques such that there are many ancient
Gent Waste Brick Image Cortesia de Carmody Groarke Made mainly from crushed concrete masonry and glass from demolished buildings the block uses materials collected mainly within a five mile
This article demonstrates the possibility of producing alkali activated materials AAM from a mixture of mechanically processed concrete ceramic masonry and mortar wastes as a sustainable alternative for recycling construction and demolition wastes CDWs under real conditions The addition of 10% Portland cement allowed the materials to cure at room
Mortar mix The mix ratio of mortar was selected as 1 6 and 1 8 and the thickness of mortar was maintained as 12 mm to prepare the masonry prism specimens The masonry mortar was prepared by replacing the river sand with waste brick powder at the replacement levels of 10% 20% 30% 40% and 50% The strength of masonry mortar was carried out using
The total weight of construction waste generated by masonry work for this project was 51 kg kg/m 2 which included brick joint mortar and plastering mortar Although the amount of waste generated from masonry work was not as large as from timber formwork all the masonry structures in this building can be replaced by
The aim of this study was to employ crushed Demolished Brick Masonry a variety of Construction and Demolition Waste as a replacement for conventional construction materials natural soil and aggregates primarily in the production of three types of masonry units namely Solid Concrete Blocks Stabilized Adobe Blocks and Stabilized Mud Concrete Blocks
The aim of this study is to employ crushed Demolished Brick Masonry a variety of Construction and Demolition Waste as a replacement for conventional construction materials natural soil and
This study aims to investigate the use of different wastes as raw materials in the fabrication of sustainable eco friendly fired building bricks Wastes such as demolished bricks fly ash and rice husk ash RHA are used for the development of fired building bricks Based upon partial replacement of clay by demolished brick waste 5 25 wt% various samples are
Brick Masonry Definition Brick masonry is a highly durable form of construction It is built by placing bricks in mortar in a systematic manner to construct solid mass that withstand exerted loads There are several types of bricks and number of
This paper describes patent pending mixtures and methods for producing masonry blocks using gypsum drywall waste and preliminary investigation of Drywall Waste Block DWB engineering properties Recycling waste from building construction and demolition C&D provides many environmental and economic benefits However challenges remain for
This paper describes patent pending mixtures and methods for producing masonry blocks using gypsum drywall waste and preliminary investigation of Drywall Waste Block DWB engineering properties
The waste concrete used for the study was obtained from a construction site in Johannesburg South Africa The waste concrete was fragmented using a hammer The waste concrete fine particles WCFPs were obtained by using a mm sieve The collected WCFPs were further ground using a ball mill and sifted through a 75 µm sieve
C&D waste is usually classified into three categories which are 1 Difficult to dispose or recycle like asbestos paints solvents etc ; 2 Direct recycling is not possible but may recycle elsewhere like glass oil timber plastic paper etc ; 3 Easy to reuse or recycle like asphalt tiles concrete brick or stone masonry soil etc as shown in Fig 1
Construction and demolition waste CDW has been a worldwide issue in the process of urbanization Recycling and reuse of CDW can reduce the impact of carbon emission and decrease the consumption of natural resources so as to promote the development of waste free cities [1] [2] [3] [4] Replacing natural aggregates using recycled aggregates generated
Another construction solid waste that can be used to produce artificial aggregates is waste clay brick masonry blocks As one of the most widely used building forms Masonry structures have been widely used in China for more than 2000 years; however since the 1980 s they have been gradually replaced by reinforced concrete structures [27
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