Construction waste management
Introduction. Construction and demolition of lithuania and the european union. Manufacturing processes. Best manufacturing practices. Construction and demolition waste life cycle analysis. Construction and demolition waste generation problems. Construction and demolition waste facilities operating. Construction and demolition waste management. Environmental impact assessment. Waste storage requirements. Waste acceptance criteria. Conclusions. Literature and sources.
In many countries of the world in the last decade, a growing economy has helped to expand the construction sector. Constantly accelerating growth has led to increasing demand for goods and services is taken, it will inevitably tiesiogiainulėmė household and industrial waste volume growth. Among the industrial sector participation in the construction industry worldwide accounts for about 35 % of industrial waste.
During the rapid growth of the city has created the problem of how to effectively use construction and demolition waste in order to ensure the sustainable development of the surrounding environment , making possible the achievement of the general well-being, combining environmental, economic and social objectives of the society and within the limits of allowable environmental impact limits. It is also relevant to the problem - the construction of waste disposal and recycling of control because of illegal landfills is becoming important with the emergence of a problem with one of the solutions is to improve the national legal framework.
Industrial waste and by- product materials recycling is widespread and is considered one of the most important ways of achieving sustainable growth. The prevailing political environment of the country are particularly affected by the promotion of waste treatment before being transported to the waste dumps.
It is important to examine the world's dominant construction and demolition ( SG) of the recovery techniques and management systems that can ensure success of this type of waste disposal or recycling, minimally affecting the environment and obtaining maximum benefit from the construction waste. It is important to determine which of the waste disposal alternatives is acceptable, according to many indicators.
Depending on what kind of activities in the field come construction - demolition waste ( C & D) are divided :
• Waste generated in whole or in part in the disintegration of the buildings and infrastructure elements (roads, bridges ) .
• Waste generated by buildings and infrastructure construction parts and repairs.
• Soil, rocks and plants, associated with land grading and site management works.
According to the composition and characteristics of the SGA divided into:
Concrete, bricks, tiles and ceramics; tree; glass; plastic; bituminous mixtures; metals and their alloys; earth, rocks, dredging sludge; insulation materials and construction waste containing asbestos; gonstruction materials of gypsum.
Surplus building materials and their containers.
Utilize oil, grease, etc. fluids.
Other materials (batteries, Hg lamp, equipment, mat. Containing mercury, PCBs, mixed).
Inseperable big waste (formaldehyde carpets ).
Katz and Baum ( 2011) , considering SG waste generation on site construction processes by waste generation divided into three main groups ( Figure1.):
The static base frame during construction, mainly used steel, concrete or wood. At this stage, you can easily assess the quantities of material need, avoiding a large excess material. Also this type of building materials are minimally packaged in a container or other protective material to protect from the elements. Early finishing includes partition walls fitting, pipe fitting, plastering, floor tile installation, etc. works. At this stage, formed different groups SG waste. In the late finishing work is carried out putties, paint, floor coverings and the like. operations, which are not utilized residues and leaves much packaging containers (cardboard boxes, plastic film, foam fillers empty containers and the like.).