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Investigation of us...
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Liu, JunShenzhen University
(författare)
Investigation of using limestone calcined clay cement (LC3) in engineered cementitious composites: The effect of propylene fibers and the curing system
- Artikel/kapitelEngelska2021
Förlag, utgivningsår, omfång ...
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Elsevier BV,2021
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electronicrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:research.chalmers.se:3cf577aa-c8e3-498f-92b5-3aacfefec808
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https://research.chalmers.se/publication/526317URI
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https://doi.org/10.1016/j.jmrt.2021.09.023DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
Anmärkningar
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Limestone calcined clay cement (LC3) is a new type of low-carbon cement that can reduce energy consumption and carbon dioxide emissions while meeting the performance requirements of ordinary cement. In this study, polypropylene (PP) fibers were mixed into limestone calcined clay cement-based materials to make new low-carbon ECCs. In this study, a total of 24 sets of specimens were designed for 4 groups of curing ages and 6 types of mix ratios. The compressive load–displacement data were measured the compressive curve characteristics were analyzed then, a compressive constitutive model of the composites was deduced and obtained. Through XRD, SEM-EDS and MIP experiments, the reasons and laws of the compressive strength ranges of adding PP fibers and LC3 to engineered cementitious composites (LC3-PP-ECCs) are further explained from the perspective of the pore size, microstructures and hydration products. The results show that, after 28 days, the compressive strength values of LC3-PP-ECCs generally decreases with increasing PP fiber content and the combined effect of PP fibers and hydration products causes the compressive strength of LC3-ECCs with 0.5% PP fibers to drop sharply. In addition, the specimens showed better properties in terms of toughness, ductility and energy absorption. However, in the microstructures, the addition of PP fibers will cause more internal defects and flaws. This results of this study can provide some theoretical experience and technical support for the engineering application of LC3-ECCs.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Zhang, WeizhuoShenzhen University
(författare)
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Li, ZhenlinShenzhen University
(författare)
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Jin, HesongShenzhen University
(författare)
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Liu, W.Shenzhen University
(författare)
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Tang, Luping,1956Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)vbmtl
(författare)
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Shenzhen UniversityChalmers tekniska högskola
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Journal of Materials Research and Technology: Elsevier BV15, s. 2117-21442238-78542214-0697
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