![]() ![]() ![]() In addition, the construction sector is a main consumer of raw materials and energy, and it generates a large amount of waste. In recent years, the construction sector has become a major problem and the best tool to mitigate climate change and is responsible for 30% of the total greenhouse gas emissions that are released into the atmosphere annually. One of the major contributors to greenhouse gases is the construction sector, which plays an important role in the environment. Carbon dioxide (CO 2) gas is considered to be the most serious greenhouse gas caused by pollution predominantly from fossil energy sources and accounts for up to 76% of total greenhouse gases. These consequences are manifested in the form of elevated temperature and in the form of storms, cyclones and hurricanes, which are caused by stronger precipitation and rising sea level. One of the major challenges facing humanity in this century is climate change, which has significant global consequences for individual aspects, such as human health, the environment and the economy. Unprecedented modernisation characterised by population explosion, urbanisation and economic development is a major contributor to environmental pollution and resource depletion. Using a suitable material composition of the wall structure, up to a 20% reduction in greenhouse gas emissions can be achieved while maintaining the same thermal parameters of the structure. The lowest environmental impact in all environmental categories evaluated was found for a structure with aerated concrete with a thickness of 300 mm with graphite polystyrene thermal insulation and with silicone outdoor plaster. The average water consumption was identified as 3.97 m 3, and the abiotic depletion was identified as 1.41 kg Sb eq per square metre of the wall structure. The calculated values of global warming potentials per square metre of wall construction ranged from 234.16 to 283.46 kg CO 2 eq for the 20-year time span, from 213.02 to 255.20 kg CO 2 eq for the 100-year time span and from 190.40 to 229.90 kg CO 2 eq for the 500-year time span. The evaluation was based on life cycle assessment (LCA) methodology within the ‘‘cradle to gate” boundaries. The material composition of the wall structures consisted of aerated concrete blocks, ranging from 300 to 375 mm, with different thermal-insulation materials (expanded polystyrene with graphite, and rock wool) and variable interior and exterior plaster. Environmental impacts were assessed using environmental indicators, such as global warming potential and abiotic, water and natural resource depletion. This study aims to quantify the environmental performance of selected bearing constructions with special regard to their climate change contribution and resource depletion. The construction sector contributes significantly to the production of greenhouse gases and thus to climate change. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |