Journal
CEMENT & CONCRETE COMPOSITES
Volume 34, Issue 1, Pages 55-61Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.cemconcomp.2011.09.018
Keywords
High performance concrete; Fine-ground ceramics; Mechanical properties; Fracture-mechanics properties; Durability properties; Hydric properties; Thermal properties
Funding
- Czech Science Foundation [P104/10/0355]
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This paper presents experimental work regarding the basic physical characteristics, mechanical and fracture-mechanics properties, durability characteristics, hydric and thermal properties of high performance concrete (HPC) with up to 60% of Portland cement replaced by fine-ground ceramics. Experimental results show that the amount of the ceramics in the mix is limited mainly by the resistance against de-icing salts which is found satisfactory only up to the cement replacement level of 10%. The mechanical and water transport properties are not significantly impaired by ceramic additions of up to 20%, whereas the effective fracture toughness, specific fracture energy, and chemical resistance (to MgCl2. NH4Cl, Na2SO4, HCl) are effectively maintained up to 40%. The frost resistance, water vapor transport and storage parameters and thermal properties are not significantly impaired even up to a 60% replacement level. (C) 2011 Elsevier Ltd. All rights reserved.
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