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Pregled bibliografske jedinice broj: 983669

Rad u postupku objavljivanja

Autori: Netinger Grubeša, Ivanka; Radeka, Miroslava; Malešev, Mirjana; Radonjanin, Vlastimir; Gojević, Anita; Siddique, Rafat
Naslov: Strength and microstructural analysis of concrete incorporating ash from sunflower seed shells combustion
Izvornik: Structural concrete (1464-4177) (2018)
Status rada: prihvaćen
Ključne riječi: ash from sunflower seed shells combustion ; concrete ; mechanical properties, SEM analysis, mineral admixture effects
Sažetak:
The aim of the study involves determining the added value of shells of sunflower seeds ash (SSA) as a mineral admixture in concrete and the effects/mechanisms through which it affects the concrete microstructure. The chemical effect of this type of ash was estimated by examining its chemical composition, pozzolanic activity index, and SEM investigation while its physical effect was observed at the level of concrete with ash incorporated. Four concrete mixtures with different shares of cement replacement by ash were prepared (0%, 5%, 7, 5%, and 10%). The water to binder ratio (w/b) was 0.5, and binder content 400 kg/m3 in all mixtures. The properties of fresh and hardened concrete with ash incorporated were compared with the corresponding properties of the reference concrete. The results indicate that SSA achieved all the known possible effects of mineral admixtures ; filler effect, heterogonous nucleation effect, dilution effect, and a certain degree of chemical effect. However, replacing more than 5% of cement mass with SSA will adversely affect mechanical properties of concrete.
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Izvorni jezik: ENG
Kategorija: Znanstveni
URL Internet adrese: https://onlinelibrary.wiley.com/doi/10.1002/suco.201800036
https://doi.org/10.1002/suco.201800036
Upisao u CROSBI: Ivanka Netinger (nivanka@gfos.hr), 7. Vel. 2019. u 14:32 sati



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