- Influence of water binder ratio on high performance concrete
- P.N. Raghunath ; N. Seshadri-Sekhar
- The Open Construction and Building Technology Journal, 8, 18-21
- Book Title / Journal:
- Year: 2014 , Volume: , Series:
- Structure types ; Concrete structures
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- Shear transfer along interfaces: constitutive laws
- K. Trezos ; E. Vintzileou ; V. Palieraki
- Book Title / Journal: 2nd European Conference on Earthquake Engineering and Seismology, Istanbul, Turkey
- Year: 2014 , Volume: , Series:
- Structure types ; Concrete structures
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- Influence of longitudinal reinforcement layouts on RC wall performance
- S. Sritharan ; K. Beyer ; R. Constantin ; J. Almeida ; A. Rosso
- Book Title / Journal: 2nd European Conference on Earthquake Engineering and Seismology, Istanbul, Turkey
- Year: 2014 , Volume: , Series:
- Structure types ; Concrete structures
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- Tensile and cyclic behavior of corroded 10mm deformed steel reinforcement-preliminary results
- A Palermo ; A. Scott ; K. Andisheh
- Book Title / Journal: 2nd European Conference on Earthquake Engineering and Seismology, Istanbul, Turkey
- Year: 2014 , Volume: , Series:
- Structure types ; Concrete structures
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- Preliminary estimation of reduction factors in mechanical properties of steel reinforcement due to pitting simulated corrosion
- K. Andisheh ; A. Scott ; A Palermo
- Book Title / Journal: New Zealand Society for Earthquake Engineering (NZSEE) Annual Technical Conference
- Year: 2014 , Volume: , Series:
- Structure types ; Concrete structures
- Keywords: Corrosion ; steel structures
- Description
- In recent years, growing attention has been given to the effects of corrosion on reinforced concrete structures. Marine environment and de-icing salt are two causes chloride-induced corrosion. Basically, there are two types of steel reinforcement
corrosion called general and pitting corrosion. In real corroded reinforced concrete (RC) structures, a mix of the general and pitting corrosion usually takes place. Corrosion decreases the mechanical characteristics of steel reinforcing.
In this study, reduction factors of mechanical properties of steel reinforcement have been estimated through experimental monotonic tensile tests to take into consideration of eccentricity caused by pitting corrosion. Reduction factors have been defined to estimate the effect of corrosion on the reduction in mechanical properties of corroded steel bars. The reduction factors indicate the percentage reduction in the mechanical properties for 1% loss of cross-section area of steel reinforcement.
To meet this aim, pitting corrosion has been simulated by mechanically removing a portion of the cross section form 10mm, steel reinforcement. The reduction factors in terms of yield stress, ultimate stress, module of elasticity and elongation have been estimated from monotonic tensile tests. The relevant deterioration models have been
developed based on the experimental results, and have been used for section-level
analysis of a reinforced concrete bridge pier. The results of section-level analysis show degradation in moment-curvature and force-displacement of the corroded RC bridge pier due to pitting corrosion.
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- Ultra-High Performance Concrete: A State-Of-The-Art Report for the Bridge Community
- H. Russell ; B. Graybeal
- Book Title / Journal: Publication No. FHWA-HRT-13-060, U.S. Department of Transportation, Federal Highway Administration, McLean, VA, USA
- Year: 2013 , Volume: , Series:
- Structure types ; Concrete structures
- Description
- The term Ultra-High Performance Concrete (UHPC) refers to a relatively new class of advanced cementitious composite materials whose mechanical and durability properties far surpass those of conventional concrete. This class of concrete has been demonstrated to facilitate solutions that address specific problems in the U.S. highway bridge infrastructure. Initial material development research on UHPC began more than two decades ago. First structural deployments began in the late 1990s. First field deployments in the U.S. highway transportation infrastructure began in 2006. For this study, UHPC-class materials are defined as cementitious-based composite materials with discontinuous fiber reinforcement that exhibit compressive strength above 21.7 ksi (150 MPa), pre- and post-cracking tensile strength above 0.72 ksi (5 MPa), and enhanced durability via a discontinuous pore structure. The report documents the state of the art with regard to the research, development, and deployment of UHPC components within the U.S. highway transportation infrastructure. More than 600 technical articles and reports covering research and applications using UHPC have been published in English in the last 20 years, with many more published in other languages. The report includes information about materials and production, mechanical properties, structural design and structural testing, durability and durability testing, and actual and potential applications. The report concludes with recommendations for the future direction for UHPC applications in the United States.
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- UHPC – Development and Testing on Structural Elements
- J.L. Vítek ; R. Coufal ; D. Čítek
- Book Title / Journal: Procedia Engineering
- Year: 2013 , Volume: 65 , Series:
- Structure types ; Concrete structures
- Keywords: Anchorage zone ; ultra high performance concrete
- Description
- Ultra high performance concrete (UHPC) is developed using the local constituents. The concrete mix exceeding the compression cylinder strength of 150 MPa was thoroughly tested. Its production in industrial mixing plants was verified. Its application in structures required additional tests investigating the performance of anchoring zones and bond between steel and UHPC. The tests showing the load carrying capacity of structural elements were carried out. The developed concrete mixes are now used for construction of a footbridge.
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- Addressing infrastructure durability and sustainability by self healing mechanisms - recent advances in self healing concrete and asphalt
- E. Schlangen ; S. Sangadji
- Procedia Engineering, Vol. 54, pages 39-57
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Structure types ; Concrete structures
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- Performance criteria to assess shrinkage cracking tendency in concrete overlay
- S.A. Kristiawan
- Procedia Engineering, Vol. 54, pages 82-100
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Structure types ; Concrete structures
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- Combined use of non-destructive tests for assessment of strength of concrete in structure
- Y. Verma ; K. Murari ; A.K. Jain ; A. Kathuria ; A. Kumar
- Procedia Engineering, Vol. 54, pages 241-251
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Structure types ; Concrete structures
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- Self-compacting concrete with recycled traditional roof tile powder
- B. Herbudiman ; A.M. Saptaji
- Procedia Engineering, Vol. 54, pages 805-816
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Structure types ; Concrete structures
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- Mixed concrete optimization using fly ash, silica fume and iron slag on the scc's compressive strength
- D. Raharjo ; A. Subakti
- Procedia Engineering, Vol. 54, pages 827-839
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Structure types ; Concrete structures
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- Analytical investigation of vehicle fires in precast concrete parking structures
- S. Pessiki ; J. Bayreuther
- PCI Journal, summer 2013, pages 111-123
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Structure types ; Concrete structures
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- Influence of hybrid fibres on the post crack performance of high strength concrete – Part I experimental investigations
- A. Sivakumar
- Journal of Civil Engineering and Construction Technology, Vol. 2, No. 7, pages 147-159
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Structure types ; Concrete structures
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- Reflectance spectroscopy as a tool to assess the quality of concrete in situ
- A. Brook ; E. Ben-Dor
- Journal of Civil Engineering and Construction Technology, Vol. 2, No. 7, pages 169-188
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Structure types ; Concrete structures
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