Tensile strength of a calcium-aluminate cementitious composite reinforced with basalt textile in a high-temperature environment

Rambo, Dimas Alan Strauss; Silva, Flávio de Andrade; Filho, Romildo Dias Toledo; Ukrainczyk, Neven; Koenders, Eduardus

doi:10.1016/j.cemconcomp.2016.04.006

Cited by 57 publications

(25 citation statements)

References 12 publications

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“…The studies of Rambo et al [31,32] have also investigated the textile-to-matrix interface, by scanning electron microscopy analysis. However, these studies have focused on The uncoated (dry) textiles were barely affected at temperatures up to 200 • C, regardless of the testing conditions.…”

Section: Performance Of the Textile-to-matrix Bondmentioning

confidence: 99%

State-of-the-Art Review on Experimental Investigations of Textile-Reinforced Concrete Exposed to High Temperatures

et al. 2021

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Textile-reinforced concrete (TRC) is a promising composite material with enormous potential in structural applications because it offers the possibility to construct slender, lightweight, and robust elements. However, despite the good heat resistance of the inorganic matrices and the well-established knowledge on the high-temperature performance of the commonly used fibrous reinforcements, their application in TRC elements with very small thicknesses makes their effectiveness against thermal loads questionable. This paper presents a state-of-the-art review on the thermomechanical behavior of TRC, focusing on its mechanical performance both during and after exposure to high temperatures. The available knowledge from experimental investigations where TRC has been tested in thermomechanical conditions as a standalone material is compiled, and the results are compared. This comparative study identifies the key parameters that determine the mechanical response of TRC to increased temperatures, being the surface treatment of the textiles and the combination of thermal and mechanical loads. It is concluded that the uncoated carbon fibers are the most promising solution for a fire-safe TRC application. However, the knowledge gaps are still large, mainly due to the inconsistency of the testing methods and the stochastic behavior of phenomena related to heat treatment (such as spalling).

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Section: Performance Of the Textile-to-matrix Bondmentioning

confidence: 99%

State-of-the-Art Review on Experimental Investigations of Textile-Reinforced Concrete Exposed to High Temperatures

et al. 2021

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“…The first one was called thermomechanical condition at a constant temperature (or hot condition). It means that the TRC specimen was tested under the tensile force until its failure after being reached homogeneous temperature on the specimen [7][8][9]. As the experimental results, TRC composite provided the strain-hardening behaviour with different working phases and a gradual reduction of mechanical properties (cracking stress, initial rigidity, ultimate stress, post-crack rigidity) with increasing temperatures.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and analytical modeling of the crack width effect on the fire performance of carbon textile-reinforced concrete composite

Tien

Ferrier

et al. 2021

STCE

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In comparison with fiber-reinforced polymer (FRP) composite, the textile-reinforced concrete (TRC) presents stability in mechanical performance at elevated temperatures thanks to a thermal protection layer by the cementitious matrix. This paper presents the experimental characterization and analytical modeling for fire performance of carbon TRC under the thermomechanical regime at constant tensile force. The carbon TRC is manufactured from the cementitious matrix with good thermal properties (refractory matrix) and the reinforcement of carbon textiles. In the experiment, the ultimate strength of the carbon TRC specimen was firstly identified from the direct tensile tests at ambient temperature. Afterwards, in the thermomechanical regime, the fire performance of carbon TRC specimens according to 5 loading levels ranging from 10% to 75% related to its ultimate strength was determined. As a result, the effect of crack appearance on this thermomechanical performance was highlighted and analyzed. For the analytical modeling, a model was calibrated with the experimental results to predict the fire performance of carbon TRC by taking into account the effect of crack width.

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“…In studies [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28], the structural capacity of TRC alone (not on a different substrate) under elevated or high temperature has been investigated. However, in [12][13][14][15][16][17][18][19][20][21], the maximum temperature that was tested was 650 • C, and only in publications [22][23][24][25][26][27][28], TRC was investigated under temperatures of 700 • C-1000 • C, which corresponds to the realistic temperatures developed in case of a cellulosic fire [29]. Moreover, out of the last group of publications, only in [26,28] tests have been performed on TRC specimens according to the standard fire curve proposed by EN1363 ( [29]), while using glass or carbon fiber reinforcement, which are the most commonly used in structural applications.…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical Behavior of Textile Reinforced Cementitious Composites Subjected to Fire

et al. 2019

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The mechanical behavior of textile reinforced cementitious composites (TRC) has been a topic of wide investigation during the past 30 years. However, most of the investigation is focused on the behavior under ambient temperatures, while only a few studies about the behavior under high temperatures have been conducted thus far. This paper focused on the thermomechanical behavior of TRC after exposure to fire and the residual capacity was examined. The parameters that were considered were the fiber material, the thickness of the concrete cover, the moisture content and the temperature of exposure. The specimens were exposed to fire only from one side and the residual strength was measured by means of flexural capacity. The results showed that the critical factor that affects the residual strength was the coating of the textiles and the law of the coating mass loss with respect to temperature. The effect of the other parameters was not quantified. The degradation of the compressive strength of TRC was quantified with respect to temperature. It was also concluded that a highly asymmetrical design scheme might lead to premature failure.

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Tensile strength of a calcium-aluminate cementitious composite reinforced with basalt textile in a high-temperature environment

Cited by 57 publications

References 12 publications

State-of-the-Art Review on Experimental Investigations of Textile-Reinforced Concrete Exposed to High Temperatures

State-of-the-Art Review on Experimental Investigations of Textile-Reinforced Concrete Exposed to High Temperatures

Experimental investigation and analytical modeling of the crack width effect on the fire performance of carbon textile-reinforced concrete composite

Thermomechanical Behavior of Textile Reinforced Cementitious Composites Subjected to Fire

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