Description: technologyComment of gravel and sand quarry operation (CH): The typical technology for swiss gravel and sand mining was assumed.
Types:
Text {
text_type: Report,
}
Comment: This is a market activity. Each market represents the consumption mix of a product in a given geography, connecting suppliers with consumers of the same product in the same geographical area. Markets group the producers and also the imports of the product (if relevant) within the same geographical area. They also account for transport to the consumer and for the losses during that process, when relevant. This market is representing local market for sand in Switzerland. A swiss market for sand was created based on literature. According to The Swiss Geological Survey - the authority for subsurface, published in 2017 by Federal Office of Topography swisstopo “Switzerland can cover most of its requirements of mineral commodities, such as gravel and sand, gypsum, salt and raw materials for cement, from domestic mining sites.” Transport from producers to consumers of this product in the geography covered by the market is included. The product "sand" represents an average type of sand extracted. Sand is co-produced with gravel where production of 1 kg represents 35% sand and 65% gravel. The largest use of construction sand and gravel is as aggregate for the production of concrete. The second largest use is as foundation material for highways, railways, runways, etc. Other major uses include aggregate for hot mix asphalt, and filler for highway, dam, and other back-filling. Smaller volumes of construction sand and gravel are used in plaster and gunite sands, snow and ice control, and railroad ballast. This market is supplied by the following activities with the given share: gravel and sand quarry operation, CH: 1.0 generalComment of gravel and sand quarry operation (CH): This dataset corresponds to the production of 1 kg of sand (35%) and gravel (65%). From the total sectoral production volume (100%) of mined gravel round, crushed and sand, about 85% is gravel round and sand. [This dataset was already contained in the ecoinvent database version 2. It was not individually updated during the transfer to ecoinvent version 3. Life Cycle Impact Assessment results may still have changed, as they are affected by changes in the supply chain, i.e. in other datasets. This dataset was generated following the ecoinvent quality guidelines for version 2. It may have been subject to central changes described in the ecoinvent version 3 change report (http://www.ecoinvent.org/database/ecoinvent-version-3/reports-of-changes/), and the results of the central updates were reviewed extensively. The changes added e.g. consistent water flows and other information throughout the database. The documentation of this dataset can be found in the ecoinvent reports of version 2, which are still available via the ecoinvent website. The change report linked above covers all central changes that were made during the conversion process.]
Origin: /Bund/UBA/ProBas
Tags: Schweiz ? Kies ? Sandgrube ? Sand ? Mining and quarrying ? Other mining and quarrying ? Quarrying of stone, sand and clay ?
License: unbekannt
Language: Deutsch
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