elevated temperature performance of reinforced concrete
Behavior of High-Strength Polypropylene Fiber-Reinforced
Nov 11 2018 · Subsequently we performed a comprehensive analysis of the thermal and mechanical behavior of high-performance concrete under different thermal conditions. We applied longer exposure times to broaden the available results on the behavior of high-performance fiber-reinforced concrete when subjected to high temperatures.
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Effects of Fire on the Strength of Reinforced Concrete
2.4. Cooling of Concrete Samples. The burning /cooling involved 8 reinforced concrete (RC) beams (230 x 230 x 800 mm) samples 8 RC slabs (300 x 600 x100 mm) and 8 mass concrete (150 x 150 x 150mm) cubes out of which two each were control specimen two were air cooled two were quenched with water and two cooled with Carbon Dioxide fire extinguishers found in s BS EN FIRE
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(PDF) The Behavior of Reinforced and Pre-Stressed Concrete
In the second phase the residual mechanical performance of prestressed beam prestressed beam with steel addition and reinforced concrete beams under elevated 400oC for 120 minutes durations.
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Numerical Investigation on the Behavior of Reinforced
Jan 29 2021 · In this paper the response of lightweight reinforced concrete (LWRC) beams under elevated temperature is numerically investigated using the nonlinear finite element software ABAQUS. Firstly a numerical model is suggested and validated against experimental tests conducted by the authors. The validation results have shown the accuracy and reliability of the suggested numerical
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FIRE PERFORMANCE OF CONCRETE BEAMS REINFORCED
at elevated temperatures. The slice approach model was used and validated against experimental data for reinforced concrete beams with FRP available in the literature. Good agreement with experimental results has been obtained at room temperature as well as at elevated temperatures. KEYWORDS FRP RC Beams Fire approach method INTRODUCTION
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Thermal and mechanical properties of fiber reinforced high
Nov 01 2011 · Generally for HSC the specific heat remains constant up to 400 °C however it increases beyond 400 °C as more heat is required to release the chemically bound moisture in concrete.
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Review Article Properties of Concrete at Elevated
Mechanical Properties. e mechanical properties that determine the re performance of RC members are com- pressive and tensile strength modulus of elasticity and stress-strain response of constituent materials at elevated temperatures. Compressive strength of concrete at an elevated tem- perature is of primary interest in re resistance design.
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Performance of hybrid fibres on mechanical properties of
Sep 09 2019 · Design/methodology/approach The study includes 60 concrete cubes of 150 mm and 60 beams of 150 150 1 100 mm reinforced with minimum tension reinforcement according to IS . The specimens were subjected to elevated temperature
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Effect of High Temperatures on Concrete Concrete
Dec 01 1999 · High temperatures also affect the compressive strength of concrete. Above 212º F the cement paste begins to dehydrate (loses chemically combined water of hydration) which gradually weakens the paste and paste-aggregate bond. The temperature that concrete has reached often can be determined by observing color changes in the aggregate.
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(PDF) The Behavior of Reinforced and Pre-Stressed Concrete
In the second phase the residual mechanical performance of prestressed beam prestressed beam with steel addition and reinforced concrete beams under elevated 400oC for 120 minutes durations.
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High-temperature testing of high performance fiber
Jun 23 2016 · The effect of high-temperature exposure on properties of High Performance Fiber Reinforced Concrete (HPFRC) is researched in the paper. At first reference measurements are done on HPFRC samples without high-temperature loading. Then the HPFRC samples are exposed to the temperatures of 200 400 600 800 and 1000 °C. For the temperature loaded samples
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Predicting the Behaviour of Reinforced Concrete Slabs at
elevated temperature. KEYWORDS Finite element method Shell Elevated temperature Reinforced concrete slabs INTRODUCTION It appears that numerical studies on the behaviour of load bearing structures under fire conditions have mainly concentrated on predicting the behaviour of individual beams and columns and frames composed of such members.
Get PriceResidual load carrying capacity of reinforced concrete
Sep 11 2020 · The present research work is investigating the behavior of reinforced concrete (RC) cylinders after exposure to elevated temperatures. Reinforcement was done by using the longitudinal bars with closely spaced lateral ties (i.e. confinement). Experiments were carried out on the RC cylinders subjected to a single heating–cooling cycle of elevated temperature ranging from 200 to 800 °C with
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Effect of High Temperatures on Concrete Concrete
Dec 01 1999 · High temperatures also affect the compressive strength of concrete. Above 212º F the cement paste begins to dehydrate (loses chemically combined water of hydration) which gradually weakens the paste and paste-aggregate bond. The temperature that concrete has reached often can be determined by observing color changes in the aggregate.
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(PDF) Performance of Structures Exposed to Extreme High
In addition performance of advanced materials such as Fiber Reinforced Polymer (FRP) and Concrete Filled Tubular (CFT) when exposed to high temperature was discussed. Recommendations from
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Experiment and Calculation of Reinforced Concrete at
Jan 15 2013 · Finite element analysis and simplified calculation method for reinforced concrete structure at elevated temperature With this book engineers and architects can effectively analyze the effect of high temperature on concrete and materials which will lead to better designs of fire resistant and damage evaluation and treatment after fire.
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The Effect of Elevated Temperature on High Performance
High performance fiber reinforced concrete (HPFRC) became very popular material due to its high strength elastic modulus corrosion and fire resistance. However detail description of HPFRC behaviour is necessary for its application and an effective building design and development. Here also the fire safety of buildings must be considered.
Get PriceExperiment and Calculation of Reinforced Concrete at
Jan 15 2013 · Finite element analysis and simplified calculation method for reinforced concrete structure at elevated temperature With this book engineers and architects can effectively analyze the effect of high temperature on concrete and materials which will lead to better designs of fire resistant and damage evaluation and treatment after fire.
Get Price
Numerical Investigation on the Behavior of Reinforced
Jan 29 2021 · In this paper the response of lightweight reinforced concrete (LWRC) beams under elevated temperature is numerically investigated using the nonlinear finite element software ABAQUS. Firstly a numerical model is suggested and validated against experimental tests conducted by the authors. The validation results have shown the accuracy and reliability of the suggested numerical
Get Price
(PDF) Performance of Structures Exposed to Extreme High
In addition performance of advanced materials such as Fiber Reinforced Polymer (FRP) and Concrete Filled Tubular (CFT) when exposed to high temperature was discussed. Recommendations from
Get Price
Review Article Properties of Concrete at Elevated
Mechanical Properties. e mechanical properties that determine the re performance of RC members are com- pressive and tensile strength modulus of elasticity and stress-strain response of constituent materials at elevated temperatures. Compressive strength of concrete at an elevated tem- perature is of primary interest in re resistance design.
Get Price
Study of Fiber Reinforced Concrete Subjected to Elevated
AbstractFiber reinforced concrete is increasingly being used for various civil infrastructure applications worldwide. With the introduction of fiber materials in concrete the knowledge about the effect of fiber percentage on the residual strength of concrete after subjecting to elevated temperature is less.
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Performance of hybrid fibres on mechanical properties of
Sep 09 2019 · Design/methodology/approach The study includes 60 concrete cubes of 150 mm and 60 beams of 150 150 1 100 mm reinforced with minimum tension reinforcement according to IS . The specimens were subjected to elevated temperature
Get Price
The Effect of Elevated Temperature on High Performance
High performance fiber reinforced concrete (HPFRC) became very popular material due to its high strength elastic modulus corrosion and fire resistance. However detail description of HPFRC behaviour is necessary for its application and an effective building design and development. Here also the fire safety of buildings must be considered.
Get PriceIndian Concrete Journal
Performance of steel fiber reinforced concrete columns exposed to high temperatures under different cooling conditions K. Ratna Tej Reddy K. Srinivasa Rao K. Rambabu This paper aims to present the study conducted on steel fiber reinforced concrete columns that were exposed to temperatures up to 800ºC and cooled by two methods.
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Effect of Elevated Temperature on Bond Strength of Concrete
In the case of exposure of reinforced concrete structure to accidental fire an assessment of its residual capacity is needed. Bond strength of concrete was observed under elevated temperatures (150° 250° 350° and 500°C) in this study. Cylindrical specimens were prepared for pull-out tests to find out the bond behavior and to observe the mechanical properties of concrete.
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Mar 05 2019 · Khaliq W Kodur V (2011) Thermal and mechanical properties of fiber reinforced high performance self-consolidating concrete at elevated temperatures. Cem Concr Res 41(11) 1112–1122. Article Google Scholar 66. Diederichs U Jumppanen U Penttala V (1988) Material properties of high strength concrete at elevated temperatures.
Get PriceEffect of elevated temperature on thelow-velocity impact
Mar 01 2021 · Many experimental studies 1 have shown indicated that high temperature has a significant effect on the mechanical properties of concrete such as compressive strength tensile strength and elastic modulus.
Get PriceElevated temperature performance of reinforced concrete
Elevated temperature performance of reinforced concrete beams containing waste polypropylene fibers. "Fire response of hybrid fiber reinforced concrete to high temperature "
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