SCC with high volume of fly ash content

Autor: Bakhrakh Anton, Solodov Artyom, Larsen Oksana, Naruts Vitaly, Aleksandrova Olga, Bulgakov Boris
Jazyk: English<br />French
Rok vydání: 2017
Předmět:
Zdroj: MATEC Web of Conferences, Vol 106, p 03016 (2017)
Druh dokumentu: article
ISSN: 2261-236X
DOI: 10.1051/matecconf/201710603016
Popis: Self-compacting concrete is a very perspective building material. It provides great benefits during the construction of heavily reinforced buildings. SCC has outstanding properties such as high flowability, dense structure and high strength due to specific quality of aggregates, fillers, their proportion in mix, use of polycarboxylate-based superplasticizers. Main disadvantages of SCC are high price and the difficulty of obtaining a proper mix. Use of fillers, such as fly ash type F, is a way to make SCC cheaper by replacing part of cement. Fly ash also provides some technological and operating advantages. In this paper the influence of high volume (60% from cement) fly ash type F on the properties of concrete mixture and hardened concrete is investigated. The result of the work shows the possibility of reduction the cost of SCC using ordinary fillers and high amount of fly ash. The investigated SCC has low speed of hardening (7-day compressive strength at the range of 41.8 MPa) and high volume of entrained air content (3.5%).
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