Measured Carbon Emission Factors of Geosynthetics Based on Production Processes
As a new type of building material,geosynthetic materials provide innovative solutions for geotechnical engineering problems and exhibit prominent advantages in energy conservation and emission reduction.However,currently,when calculating and evaluating the carbon footprint of geosynthetic materials engineering,it is rare to use the actually measured carbon emission factors of geosynthetic material products;instead,which is always based on the indirect estimation of relevant databases and literature.Thereby,it fails to truly reflect the hidden carbon of geosynthetic material products and also affects the accuracy and credibility of carbon footprint testing results.Aiming at the three types of most commonly utilized geosynthetic products including geotextiles,geomembranes and geogrids,on-site research on three domestic production enterprises was carried out.The lifecycle process analysis method was adopted to measure the carbon emission factors of geosynthetic products with different specifications from raw materials to final production.The results indicate that the carbon emission factor of plastic stretched geogrids is directly proportional to their tensile strength,while the carbon emission factor of geomembranes is closely related to their thickness.The primary component of the carbon emission factor for geosynthetic materials is the hidden carbon in the raw materials.
resource and environmental engineeringgeosyntheticsgeotextilesgeomembranesgeogridsembodied carboncarbon emission factors
万方数据
维普
