environmental considerations in concrete recycling

Leave Comment

Environmental Considerations in Concrete Recycling

2017-3-29  Environmental Considerations in Concrete Recycling Webinar Learning Objectives • To understand RCA production and use factors potentially impacting environment, specifically: –Water quality –Air quality –Noise and other local impacts –Waste generation • To identify design/specification considerations that can reduce

Get price

The Environmental Impact of Recycled Concrete

2012-8-14  The international literature provided numerous works at recycled concrete aggregate area, mainly from the beginning of 1980 (Hansen, 1992). The topics most investigated are durability and mechanical characteristics. The quality of aggregates made of recycled concrete affects directly the properties of new concrete mixes. Some recycled aggregate properties, such as dimensions, resistances and water absorption are investigated. Aggregates influence directly porosity and mechanical resistance, among other characteristics because the proportion content of aggregates in concrete varies around 70 to 80% in mass and therefore affects the quality of concrete. Investigations in this area are divided in two types: one type is with natural fine aggregates and coarse recycled aggregates; another group is with fine and coarse aggregates partially or totally made with recycled concrete. The percentage of recycled aggregates has influence on the new concrete properties too. Absorption is an aspect that is investigated a lot, because water is the primary agent which can degrade materials. Water transports aggressive agents to concrete and it can cause chemical and physical problems in concrete structures and this affects concrete

Get price

ENVIRONMENTAL IMPACT OF CONCRETE RECYCLING,

2007-1-17  ENVIRONMENTAL IMPACT OF CONCRETE RECYCLING, COMING FROM CONSTRUCTION AND DEMOLITION WASTE (CDW) Authors: Beatriz Estévez*a , Antonio Aguadoa, Alejandro Josaa a Universitat Politécnica de Catalunya (UPC), School of Civil Engineering (ETSECCPB), Jordi Girona 1-3, Módulo C1, E-08034 Barcelona, Spain

Get price

PROTECTING THE ENVIRONMENT DURING

2018-12-19  effects) are possible during concrete recycling activities and should be addressed. However, the potential negative environmental impacts of concrete . recycling have consistently been shown to be readily mitigated through planning and design considerations, use of conventional stormwater best management practices (BMPs),

Get price

Balancing durability and environmental impact in concrete ...

2011-9-1  ► We examined the balance between mechanical and environmental performance of concrete. ► Increased water–binder ratio and recycled aggregates reduced mechanical performance. ► Certain mix combinations had better mechanical performance than normal-use concrete. ► Low air permeability and low CO 2 footprint showed the best performance balance. ► Decreasing raw

Get price

Methods to Reduce Environmental Impact of Concrete

2017-3-7  Various methods to reduce environmental impact of concrete such as material conservation is discussed. For example, it is estimated that 1.6 billion ton of concrete

Get price

Sustainability of Concrete Construction

2011-2-24  Maintenance—minimizeor eliminatefor futuregenerations.Materials are critical for creatingsustainableandresponsibleconcretedesigns. Toensurethat themost effectiveandenviron-mentallyfriendlymaterialsarebeingused, theentirelifecycleofthestructureshouldbeconsidered. Material choiceshouldincludeanticipationof theextraction, processing, transport, construction,operation, disposal, reuse, recycling, andoff-gassingandvolatileorganic compounds VOCs associated withthe material Mc-Donough1992. AccordingtoMcDonough, constructionsshouldbeflexibletoserveavarietyof different needs e.g., today’sstor-agebuildingcanbetomorrow’s school. Adapt materialsthat aresustainableintheir process of extraction, manufacture, transfor-mation, anddegradation, aswell as recyclability. Consider toxic-ity, off-gassing, finish, andmaintenance. Recyclingis

Get price

(PDF) Use of selected waste materials in concrete mixes

The waste materials considered to be recycled in this study consist of glass, plastics, and demolished concrete. Such recycling not only helps conserve natural resources, but

Get price

(PDF) Environmental Impact Of Construction Materials And ...

production of iron, steel and non-ferrous metals, as well as the production of other. construction materials such as cement, glass, lime and bricks, is responsible for 20%.

Get price

The Environmental Impact of Recycled Concrete

2012-8-14  subsequent recycling of this concrete. However, non-renewable energy resources used to crush and transport concrete to recycling plants do not allow high gains of carbonation. Steel structure recovered during crushing and separation operations of concrete contribute to the carbon cycle because steel recovered from structure can be recycled. 4.

Get price

Methods to Reduce Environmental Impact of Concrete

Cement Conservation to Reduce Environmental Impact of Concrete The conservation of cement is the first and most important step in decreasing both energy utilization and greenhouse gas emission. Resource productivity consideration stipulates the deduction of the utilization of Portland cement while meeting the future demands for more concrete.

Get price

Sustainability of Concrete Construction

2011-2-24  Sentinel 2006". To do this, the concrete industry should consider recycling industrial by-products such as fly ash safely and eco-nomically. When industrial by-products replace cement, even up to 70%, in concrete, the environmental impact improves along with the energy efficiency and durability of concrete !Naik et al. 2003".

Get price

Utilization of E-waste in Concrete and its Environmental ...

2018-1-5  Utilization of E-waste materials is a partial solution to environmental and ecological problems. Due to large amount of concrete use as the construction material availability of raw material is being questioned. Therefore, other replacing materials are needed to be finding out. E-waste is used as one such alternative for aggregate in concrete.

Get price

Sustainable Management of Construction and Demolition ...

2021-5-18  More information on environmental considerations associated with the reuse and recycling of certain CD materials can be found at Best Practices for Reducing, Reusing, and Recycling Construction and Demolition (CD) Materials. Rebuying CD Materials. Buying used CD materials and recycled content products for use in new construction can:

Get price

The Importance of Concrete Recycling

2017-12-29  Construction and demolition (CD) waste is a central component of the solid waste stream, amounting to roughly 25 percent of total solid waste nationally. The largest part of CD material is concrete, which encompasses around 70 percent of CD generated material before recycling, according to the U.S. EPA. Construction (21.7 million tons) and demolition (353.6 million tons) activities ...

Get price

Sustainable Concrete Buildings

2018-10-11  — Recycling. n Economic – Buildings must be durable, low maintenance, reusable and energy efficient, during both the building construction and operation phases. The design and construction of sustainable buildings involve striking a sensible balance of social, environmental and economic considerations. Concrete, in its

Get price

Environmental impact of Formwork - Concrete

The environmental benefits of permanent formwork, which remains in place after concrete casting and can improve thermal insulation, should be considered as part of a concrete system. The type of timber and whether it is from a managed forest and sustainable resource are also important environmental considerations.

Get price

(PDF) Environmental Impact Of Construction Materials And ...

production of iron, steel and non-ferrous metals, as well as the production of other. construction materials such as cement, glass, lime and bricks, is responsible for 20%. of annual dioxin and ...

Get price

Product Lifecycles—Environmental Considerations Brother

Brother's own collection and recycling system is in place. Participating in the Bellmark campaign through collection of used cartridges, and carrying out environmental conservation activities and education support. Toner and ink cartridges consumed outside Japan. Collection and recycling

Get price

CONCRETE RECYCLING: SOCIAL AND ENVIRONMENTAL

2020-11-24  environmental and recycling aspect. It is based on the reuse of old demolished concrete in the format of new aggregates for new concrete. The main advantage of this concrete is the reuse of construction debris which is a huge management problem in addition to complying with countries' requirements for recycling rates.

Get price

Concrete Recycling and Disposal Fact Sheet

2017-6-16  Concrete coated with paint that is not lead-bearing paint may be used as fill, aggregate or concrete to concrete recycling in accordance with the following rule exemptions: Reuse of clean concrete is exempt under s. NR 500.08(2)(a), Wis. Adm. Code. Certain environmental performance, location and operational requirements apply.

Get price

Sustainability of Concrete Construction

2011-2-24  Sentinel 2006". To do this, the concrete industry should consider recycling industrial by-products such as fly ash safely and eco-nomically. When industrial by-products replace cement, even up to 70%, in concrete, the environmental impact improves along with the energy efficiency and durability of concrete !Naik et al. 2003".

Get price

The Importance of Concrete Recycling

2017-12-29  Construction and demolition (CD) waste is a central component of the solid waste stream, amounting to roughly 25 percent of total solid waste nationally. The largest part of CD material is concrete, which encompasses around 70 percent of CD generated material before recycling, according to the U.S. EPA. Construction (21.7 million tons) and demolition (353.6 million tons) activities ...

Get price

Energy and Environmental Considerations in Recycling

2020-1-11  Energy and Environmental Considerations in Recycling Griffin Hosseinzadeh 11 April 2012. Physics H190 . Environmental Variables • Energy required to produce virgin materials vs. reclaim raw materials from recyclables • Carbon emissions water pollution from production

Get price

Environmental impact of Formwork - Concrete

The environmental benefits of permanent formwork, which remains in place after concrete casting and can improve thermal insulation, should be considered as part of a concrete system. The type of timber and whether it is from a managed forest and sustainable resource are also important environmental considerations.

Get price

Eco-Friendly Alternatives To Traditional Concrete ...

2019-7-18  Posted on July 18, 2019. Concrete is a mixture of cement, gravel, sand, water and a range of aggregates. With about 10 billion tons of concrete produced every year, it is the most consumed substance in the world, second only to water.. It is also the world’s most widely used material for construction – from bridges to large buildings, concrete forms the very foundation of our infrastructure.

Get price

How Recycled Resources and Waste Materials Can Improve ...

2021-8-16  Concrete waste is one of the most commonly recycled construction resources. According to the CDRA, it's possible to repurpose recycled concrete as a road base, ready mix concrete, asphalt, soil stabilization, pipe bedding, and landscape materials. Recycling concrete is cheaper than disposing of it.

Get price

Product Lifecycles—Environmental Considerations Brother

Brother Industries, Ltd. (BIL) conducts product environmental impact assessments at key stages of development and ensures eco-conscious design by addressing the product life cycle from material procurement, production, products use and through to the collection and recycling

Get price

Environmental considerations - definition of environmental ...

Define environmental considerations. environmental considerations synonyms, environmental considerations pronunciation, environmental considerations translation, English dictionary definition of environmental considerations. ... Environmental considerations encompass natural ventilation through the stack effect, a concrete structure to increase ...

Get price
Contact us

Submit online

Please leave a message below and we will contact you as soon as possible.