Shrinkage and Creep Properties of Low-Carbon Hybrid Cement

Autor:	Vít Šmilauer, Lenka Dohnalová, Pavel Martauz
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	creep shrinkage hybrid cement H-cement low carbon Technology Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Zdroj:	Materials, Vol 17, Iss 17, p 4417 (2024)
Druh dokumentu:	article
ISSN:	1996-1944
DOI:	10.3390/ma17174417
Popis:	Hybrid cements combine clinker with large amount of supplementary cementitious materials while utilizing hydration and alkali activation processes. This paper summarizes shrinkage and creep properties of industrially produced H-cement, containing only 20% of Portland clinker. In comparison with a reference cement CEM II/B-S 32.5 R, autogenous shrinkage is smaller after 7 days, and drying shrinkage is similar at similar times. A different capillary system of H-cement leads to faster water mass loss during drying. Basic and total creep of concrete remains in the standard deviation of B4 and EC2 creep models. The results demonstrate that shrinkage and creep properties of concrete made from H-cement have similar behavior as conventional structural concrete or high-volume fly ash concrete.
Databáze:	Directory of Open Access Journals
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