Pregled bibliografske jedinice broj: 1224242
Feasibility of using clays from Southeast European deposits in limestone calcined clay cements
Feasibility of using clays from Southeast European deposits in limestone calcined clay cements // MATEC Web of Conferences 364 / Alexander, M.G. ; Beushausen, H. ; Dehn, F. ; Ndawula, J. ; Moyo, P. (ur.).
Cape Town, 2022. 05014, 6 doi:10.1051/matecconf/202236405014 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 1224242 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Feasibility of using clays from Southeast European
deposits in limestone calcined clay cements
Autori
Flegar, Matea ; Serdar, Marijana ; Londono-Zuluaga, Diana ; Scrivener, Karen
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
MATEC Web of Conferences 364
/ Alexander, M.G. ; Beushausen, H. ; Dehn, F. ; Ndawula, J. ; Moyo, P. - Cape Town, 2022
Skup
6th International Conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR 2022)
Mjesto i datum
Cape Town, Južnoafrička Republika, 03.10.2022. - 05.10.2022
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
SCMs, raw materials, reactivity, R3 test, compressive strength
Sažetak
Recently, the cement industry has faced new challenges in addition to the environmental constraints of the last decade. The decline in availability and current inconsistent prices of common supplementary cementitious materials (SCMs), such as by-products from the iron industry or coal- fired power plants, have opened the search for more reliable materials. Research on cements containing calcined clays now serve as a possible solution to the forementioned problems. Clays containing the mineral kaolinite in sufficient quantities, when calcined and mixed with limestone powder, produce hydration products that can improve the strength and durability of concrete. In addition, the production of limestone calcined clay is reported to be less CO2 intensive, but this eco-efficient solution is viable only if the materials are locally available. For this reason, this study investigates the possibility of using natural clays from the Southeast European region (SEE) as cement replacements. A systematic experimental study was conducted on 18 different clays from 13 different deposits to determine the physical and mineralogical composition of the raw clays, their reactivity and mortar strength. The results were then related to the environmental contributions they might have in comparison with ordinary Portland cement in concrete.
Izvorni jezik
Engleski
Znanstvena područja
Građevinarstvo
POVEZANOST RADA
Projekti:
--IZHRZO 180590i1 - Advanced low CO2 cementitious materials (ACT) (Serdar, Marijana) ( CroRIS)
--UIP-2017-05-4767 - Alternativna veziva za beton: razumijevanje mikrostrukture za predviđanje trajnosti (ABC) (Serdar, Marijana) ( CroRIS)
Ustanove:
Građevinski fakultet, Zagreb
