Temperature and stress development in ultra-high performance concrete during curing
| Autor: | Amir Arablouei, Venkatesh Kodur, P.P. Bhatt, Parviz Soroushian |
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| Rok vydání: | 2016 |
| Předmět: |
Imagination
Materials science Chemical substance business.industry media_common.quotation_subject 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Building and Construction Structural engineering Finite element method 0201 civil engineering Stress (mechanics) Cracking 021105 building & construction Thermal General Materials Science Ultra high performance Composite material business Curing (chemistry) Civil and Structural Engineering media_common |
| Zdroj: | Construction and Building Materials. 122:63-71 |
| ISSN: | 0950-0618 |
| DOI: | 10.1016/j.conbuildmat.2016.06.052 |
| Popis: | This paper presents the application of finite element based numerical model to trace the progression of temperature rise and consequent stresses during hydration in a mass ultra-high performance concrete (UHPC) blocks. Results from the analysis suggest that severe thermal gradients can develop within UHPC member leading to high thermal stresses, which in turn lead to cracking at the surface of the concrete structure. The main factors that influence temperature rise and stress development in UHPC blocks during curing are batch mix proportions, size of concrete block, mesh reinforcement and presence of any thermal blankets. Provision of thermal blankets or steel wire mesh can lower curing temperature and resulting thermal stress. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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