Pregled bibliografske jedinice broj: 1243166
Influence of Low- to Medium-Kaolinite Clay on the Durability of Limestone Calcined Clay Cement (LC3) Concrete
Influence of Low- to Medium-Kaolinite Clay on the Durability of Limestone Calcined Clay Cement (LC3) Concrete // Materials, 16(1) (2023), 374, 18 doi:10.3390/ma16010374 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1243166 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Influence of Low- to Medium-Kaolinite Clay on the
Durability of Limestone Calcined Clay Cement (LC3)
Concrete
Autori
Ram, Kiran ; Flegar, Matea ; Serdar, Marijana ; Scrivener, Karen
Izvornik
Materials (1996-1944) 16(1)
(2023);
374, 18
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
kaolinite calcined clay ; chloride penetration ; electrical resistivity ; chloride binding ; capillary pore volume ; critical pore entry diameter
Sažetak
The kaolinite content is principally responsible for the durability performance of Limestone Calcined Clay Cement (LC3), which calls into question its global applicability. The clay supply has a significant impact on the LC3 system’s reduced carbon footprint advantage. The influence of kaolinite concentration from two separate clays (collected in East South-East Europe) on the durability performance of concrete was investigated in this study. The low-kaolinitic clay had 18% kaolinite, while the medium- kaolinitic clay contained around 41% kaolinite. The compressive strength, chloride intrusion, electrical conductivity, surface resistivity, and sorptivity index were measured on concrete after 28 days. Furthermore, the pore structure development of these mixtures was investigated in relation to the kaolinite content of the mixtures. The reactivity test was performed on clays to measure their reactivity levels within the cementitious system. The results show that kaolinite content has a moderate effect on compressive strength, but it has a considerable effect on other durability indices. When compared to the Portland cement mixture, the chloride migration and diffusion coefficients were reduced by 50% and 36%, respectively, in the combination with a medium kaolinite content (more than 40%). The low-kaolinitic clay, on the other hand, achieved 60% of the chloride penetration resistance of the medium-kaolinitic clay. Furthermore, low-kaolinitic clay has been demonstrated to be suitable for low-carbon concrete in moderate exposure conditions.
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
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
