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ROMANIAN RESOURCES OF WASTE AND INDUSTRIAL BY-PRODUCTS AS ADDITIONS FOR CEMENTITIOUS MIXTURES

Szilagyi, H.; Baerà, C.; Hegyi, A.; Làzàrescu, A.
Abstract:
In Romania, most of the construction and demolition wastes are stored together with other categories of waste or industrial by-products. Landfilling takes large areas of valuable land, but also causes air, water, and soil pollution, increasing the importance of any valorization or recycling technology for these types of materials. The European strategy regarding recycling concerns prevention, reuse and recycling of waste. The main materials that can be recovered from construction and demolition waste are: excavated material (soil, sand, gravel, clay, rock), road construction materials (bitumen, paving, sand, gravel, crushed rock), construction or building demolition material (soil, cement, tiles, bricks, concrete, plaster, wood, metal, glass), material from construction sites (wood, plastic, paper, cardboard, metals, cables, etc.). Many by-products (fly ash, ground granulated blast furnace slag – GGBFS, heavy slags, etc.) and recycled solids (crushed concrete, recycling bricks waste) can be used as additions, or cement replacement, or aggregate in cementitious mixtures. The main concern of this research study is focused in creating and updating the national database of potential resources for inert, latent or pozzolanic hydraulic additions from waste materials and industrial by-products taking into account the relevant parameters, such as: type of resource (dust / slurry), generating industry, zonal localization, production capacity, etc.
SGEM Research areas:
Year:
2018
Type of Publication:
In Proceedings
Keywords:
recycling waste and industrial by-products; green building materials
Volume:
18
SGEM Book title:
18th International Multidisciplinary Scientific GeoConference SGEM 2018
Book number:
6.3
SGEM Series:
International Multidisciplinary Scientific GeoConference-SGEM
Pages:
325-332
Publisher address:
51 Alexander Malinov blvd, Sofia, 1712, Bulgaria
SGEM supporters:
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
Period:
02-08 July, 2018
ISBN:
978-619-7408-52-2
ISSN:
1314-2704
Conference:
18th International Multidisciplinary Scientific GeoConference SGEM 2018, 02-08 July, 2018
DOI:
10.5593/sgem2018/6.3/S26.043
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