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Reducing Crack Risk...
Reducing Crack Risk in Industrial Concrete Floors
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- Silfwerbrand, Johan L. (författare)
- KTH,Bro- och stålbyggnad
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- Farhang, Ali A. (författare)
- KTH,Bro- och stålbyggnad,Stockholm Off Ramboll, Sweden
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(creator_code:org_t)
- American Concrete Institute, 2014
- 2014
- Engelska.
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Ingår i: ACI Materials Journal. - : American Concrete Institute. - 0889-325X .- 1944-737X. ; 111:6, s. 681-689
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Cracking and curling are two important problems in industrial concrete floors. In many practical cases, it is easier to design the concrete floor slab for mechanical loads than for shrinkage stresses. This paper proposes a simple equation that mirrors the major factors influencing the crack risk in concrete floor slabs. By using this equation, the industrial floor designer or contractor can make a proper material selection that leads to a substantially reduced crack risk. Tests on strength, free shrinkage, restrained shrinkage, and flexural creep support this hypothesis. Furthermore, the use of shrinkage-reducing admixtures (SRAs) seems to not only reduce the free shrinkage but also maintains the beneficial condition of substantial creep that leads to shrinkage stress reduction.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Husbyggnad (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Building Technologies (hsv//eng)
Nyckelord
- crack risk
- creep
- industrial concrete floors
- material tests
- restrained shrinkage
- shrinkage
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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