Long term bending behavior of ultra-high performance concrete (UHPC)
Unlike normal concrete (NC) the behavior of ultra-high performance concrete (UHPC) is different under long-term efforts, if we refer to creep, shrinkage or long-term deflections. It is well known that UHPC has special properties, like compressive strength higher than 150 MPa and tensile strength hig...
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| Format: | Article |
| Language: | English |
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National R&D Institute URBAN-INCERC, INCERC Bucharest Branch
2014-07-01
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| Series: | Constructii: Journal of Civil Engineering Research |
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| Online Access: | http://constructii.incerc2004.ro/Archive/2014-2/Constructii_2014_Vol.15_No.2_ID2014150211.pdf |
| _version_ | 1818309351056605184 |
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| author | Gheorghe-Alexandru BĂRBOS |
| author_facet | Gheorghe-Alexandru BĂRBOS |
| author_sort | Gheorghe-Alexandru BĂRBOS |
| collection | DOAJ |
| description | Unlike normal concrete (NC) the behavior of ultra-high performance concrete (UHPC) is different under long-term efforts, if we refer to creep, shrinkage or long-term deflections. It is well known that UHPC has special properties, like compressive strength higher than 150 MPa and tensile strength higher than 20 MPa - in case of UHPC reinforced with steel-fibers [1]. Nevertheless, UHPC is not so elucidated regarding creep straining or serviceability behavior in case of structural elements. Some studies made on UHPC samples [2] [3] shown that the creep is significantly reduced if the concrete is subjected to heat treatment and if it contains steel-fiber reinforcement. Relating thereto, it is important to know how does structural elements made of this type of concrete works in service life under long-term loadings. The results obtained on UHPC samples, regarding creep straining from tension or compression efforts may not be generalized in case of structural elements (e.g. beams, slabs, columns) subjected to bending [4]. Making this study it was proposed to understand the influence of the heat treatment and steel-fiber addition on the rheological phenomena of UHPC bended beams. |
| first_indexed | 2024-12-13T07:28:47Z |
| format | Article |
| id | doaj.art-d937d836326c49c2b95a9aa372e88baa |
| institution | Directory Open Access Journal |
| issn | 1221-2709 2247-0328 |
| language | English |
| last_indexed | 2024-12-13T07:28:47Z |
| publishDate | 2014-07-01 |
| publisher | National R&D Institute URBAN-INCERC, INCERC Bucharest Branch |
| record_format | Article |
| series | Constructii: Journal of Civil Engineering Research |
| spelling | doaj.art-d937d836326c49c2b95a9aa372e88baa2022-12-21T23:55:16ZengNational R&D Institute URBAN-INCERC, INCERC Bucharest BranchConstructii: Journal of Civil Engineering Research1221-27092247-03282014-07-011528188Long term bending behavior of ultra-high performance concrete (UHPC)Gheorghe-Alexandru BĂRBOS0INCD URBAN-INCERC, Cluj-Napoca Branch, RomaniaUnlike normal concrete (NC) the behavior of ultra-high performance concrete (UHPC) is different under long-term efforts, if we refer to creep, shrinkage or long-term deflections. It is well known that UHPC has special properties, like compressive strength higher than 150 MPa and tensile strength higher than 20 MPa - in case of UHPC reinforced with steel-fibers [1]. Nevertheless, UHPC is not so elucidated regarding creep straining or serviceability behavior in case of structural elements. Some studies made on UHPC samples [2] [3] shown that the creep is significantly reduced if the concrete is subjected to heat treatment and if it contains steel-fiber reinforcement. Relating thereto, it is important to know how does structural elements made of this type of concrete works in service life under long-term loadings. The results obtained on UHPC samples, regarding creep straining from tension or compression efforts may not be generalized in case of structural elements (e.g. beams, slabs, columns) subjected to bending [4]. Making this study it was proposed to understand the influence of the heat treatment and steel-fiber addition on the rheological phenomena of UHPC bended beams.http://constructii.incerc2004.ro/Archive/2014-2/Constructii_2014_Vol.15_No.2_ID2014150211.pdfultra-high performance concretebendingcreepdeflection |
| spellingShingle | Gheorghe-Alexandru BĂRBOS Long term bending behavior of ultra-high performance concrete (UHPC) Constructii: Journal of Civil Engineering Research ultra-high performance concrete bending creep deflection |
| title | Long term bending behavior of ultra-high performance concrete (UHPC) |
| title_full | Long term bending behavior of ultra-high performance concrete (UHPC) |
| title_fullStr | Long term bending behavior of ultra-high performance concrete (UHPC) |
| title_full_unstemmed | Long term bending behavior of ultra-high performance concrete (UHPC) |
| title_short | Long term bending behavior of ultra-high performance concrete (UHPC) |
| title_sort | long term bending behavior of ultra high performance concrete uhpc |
| topic | ultra-high performance concrete bending creep deflection |
| url | http://constructii.incerc2004.ro/Archive/2014-2/Constructii_2014_Vol.15_No.2_ID2014150211.pdf |
| work_keys_str_mv | AT gheorghealexandrubarbos longtermbendingbehaviorofultrahighperformanceconcreteuhpc |