Experimental investigation and modelling of the temperature effects on the tensile behavior of textile reinforced refractory concretes

Rambo, Dimas Alan Strauss; Yao, Yiming; Silva, Flávio de Andrade; Filho, Romildo Dias Toledo; Mobasher, Barzin

doi:10.1016/j.cemconcomp.2016.11.003

Cited by 45 publications

(24 citation statements)

References 28 publications

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“…8a). So, it needs to modify by a technic for the cracking phase of the mechanical behavior of TRC composite proposed in ref [6]. The modified curve was in good agreement with experimental data for F.GC2 composite in ref [9] (see Fig.…”

Section: Effect Of Deformation Measurement Lengthsupporting

confidence: 74%

“…8(b)). With the deformation measured length longer, the stress-strain curves were like idealized ones, as analyzed in [6]. The cracking phase was described by the drops in stress, and the stress in the next crack is…”

Section: Effect Of Deformation Measurement Lengthmentioning

confidence: 99%

“…This multi-scale model could take into consideration all the possible mechanisms of failure of its constitutive materials (concrete cracking and concrete-textile debonding). Rambo et al [6] used a finite-difference model to simulate the residual tension stiffening behavior of TRC specimens after exposure to the elevated temperature of pre-heating. This model could present the effect of the bond-slip relationship on the crack spacing as well as stress-strain curves at different temperatures.…”

Section: Introductionmentioning

confidence: 99%

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A 3-D finite element modeling for the textile-reinforced concrete plates under tensile load using a non-linear behaviour for cementitious matrix

Tien

Lam

et al. 2021

STCE

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A big question in the numerical approaches for the mechanical behavior of the textile-reinforced concrete (TRC) composite under tensile loading is how to model the cracking of the cementitious matrix. This paper presents numerical results of 3-D modeling of TRC composite in which the non-linear behavior model was used by considering the cracking for the cementitious matrix. The input data based on the experimental results in the literature. As numerical results, the TRC composite provides a strain-hardening behavior with three phases in which the second one is characterized by the drops in stress on the stress-strain curve. Furthermore, this model could show the failure mode of the TRC specimen with the multi-cracking on its surface after the numerical tests. From this model, the development of a crack from micro-crack to macro at a cross-section was highlighted. The stress jumps in reinforcement textile after each crack was also observed and analyzed. In comparison with the experiment, a good agreement between both results was found for all cases of this study. A parametric study could show the effect of the length and position of the measurement zone on the stress-strain curve of TRC’s mechanical behavior. Keywords: textile reinforced concrete (TRC); cementitious matrix; textile reinforcement; mechanical behaviour; numerical modeling.

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Section: Effect Of Deformation Measurement Lengthsupporting

confidence: 74%

Section: Effect Of Deformation Measurement Lengthmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A 3-D finite element modeling for the textile-reinforced concrete plates under tensile load using a non-linear behaviour for cementitious matrix

Tien

Lam

et al. 2021

STCE

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“…Also, the shape of the tested specimens (slabs) better reflects real elements made from refractory composites and used in practical applications. Slabs with similar dimensions of 400 × 250 × 13 mm reinforced by basalt fabrics were used in [9], where the authors investigated the direct tensile strength after submitting to different temperature.…”

Section: Introductionmentioning

confidence: 99%

Cyclic Temperature Loading Residual Flexural Strenght of Refractory Slabs

2017

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Abstract. This paper describes the effect of cyclic elevated temperature loading on refractory slabs made from high performance, fibre reinforced cement composite. Slabs were produced from aluminous cement-based composites, reinforced by different dosages of basalt fibres. The composite investigated in this study had self-compacting characteristics. The slabs used were exposed to different thermal loading -600°C, 1000°C, six times applied 600°C and 1000°C. Then, flexural strength was investigated in all groups of slabs, including group reference slabs with no thermal loading. The results show that the appropriate combination of aluminous cement, natural basalt aggregate, fine filler and basalt fibres in dosage 1.00 % of volume is able to successfully resist to cyclic temperature loading. Tensile strength in bending of these slabs (after cyclic temperature loading at 600°C) achieved 6.0 MPa. It was demonstrated that it is possible to use this composite for high extensive conditions in real industrial conditions.

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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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Experimental investigation and modelling of the temperature effects on the tensile behavior of textile reinforced refractory concretes

Cited by 45 publications

References 28 publications

A 3-D finite element modeling for the textile-reinforced concrete plates under tensile load using a non-linear behaviour for cementitious matrix

A 3-D finite element modeling for the textile-reinforced concrete plates under tensile load using a non-linear behaviour for cementitious matrix

Cyclic Temperature Loading Residual Flexural Strenght of Refractory Slabs

Thermomechanical Behavior of Textile Reinforced Cementitious Composites Subjected to Fire

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