Research on Mechanical Properties of Axial-Compressive Concrete Columns Strengthened with TRC under a Conventional and Chloride Wet-Dry Cycle Environment

Yin, Shiping; Chi, Peng; Jin, Zhe-yu

doi:10.1061/(asce)cc.1943-5614.0000725

Cited by 36 publications

(15 citation statements)

References 21 publications

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“…These results are in good agreement 2 Advances in Materials Science and Engineering with former findings reported by Toutanji and EI-Korchi [4]. Yin et al [5] investigated the mechanical properties and durability of RC columns strengthened by hybrid carbon and E-glass fiber/epoxy textile. It showed that, under the coupled effects of WD cycles and sustained stress, the bearing capacity and ductility of the columns and the reinforcement effects of textile decreased more rapidly as the sustained compression stress increased.…”

Section: Introductionsupporting

confidence: 89%

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Combined Effects of Sustained Loads and Wet-Dry Cycles on Durability of Glass Fiber Reinforced Polymer Composites

Wang

Liu

et al. 2017

Advances in Materials Science and Engineering

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This paper deals with durability of glass fiber reinforced polymer (GFRP) composites under the combined effects of sustained tensile loads and wet-dry (WD) cycles. Two different solutions (distilled water and saltwater) were used to imitate the freshwater and marine environments, respectively. Tensile properties of the unconditioned and conditioned specimens were measured to study the durability of GFRP composites under these 2 effects. The response indicated that both tensile strength and elastic modulus increased initially upon WD cycles, which was attributed to both the postcuring of resin and the sustained tensile stress allowing for fastec cure. Further exposure to WD cycles in distilled water or saltwater led to a steady decrease in tensile strength and modulus. WD cycles of saltwater and distilled water have similar effects on the degradation of the tensile properties for unstressed specimens. However, the elastic modulus and elongation at rupture of stressed specimens under WD cycles of saltwater decreased more than those specimens under WD cycles of distilled water. Moreover, increase of sustained loads led to a decrease in tensile strength. Based on Arrhenius method, a prediction model which accounted for the effects of postcure processes was developed. The predicted results of tensile strength and elastic modulus agree well with those obtained from the experiments.

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Section: Introductionsupporting

confidence: 89%

“…The predictive equations of tensile strength and elastic modulus according to (5) and (2) are given in Tables 3 and 4, respectively. For unstressed specimens, the predicted results from (2) and (5) agree well with those obtained from experiments.…”

Section: Prediction Of Long-term Behaviormentioning

confidence: 99%

Combined Effects of Sustained Loads and Wet-Dry Cycles on Durability of Glass Fiber Reinforced Polymer Composites

Wang

Liu

et al. 2017

Advances in Materials Science and Engineering

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“…For instance, Thermou et al (2015) managed to supress debonding and further enhance the strength of 150-mm-diameter cylinders confined with steel fabrics by increasing the overlap length from 120 to 360 mm. In contrast, Yin et al (2016), who tested square columns with internal steel reinforcement, did not record any difference in the ultimate load when they increased the overlap length by four times, mainly because the initial length was adequate to prevent debonding and failure in all cases was due to fracture of the jacket at the corners. • Ombres (2017) studied the effect of fiber orientation on the compressive behavior of PBO fiber TRM-confined cylinders, with the angle of the fibers varying from 90°to 30°with respect to the cylinder axis.…”

Section: Effect Of Parameters On the Confinement Effectivenessmentioning

confidence: 92%

“…• The effect of exposing TRM-confined square concrete columns to chloride wet-dry cycles was investigated in the study of Yin et al (2016), who found that after 90 wet-dry cycles the axial load carrying capacity of columns was reduced by approximately 5%; when combined with a sustained load at a stress ratio of 0.4, the decrease in strength reached almost 6%. Yin et al (2016) reported generation of corrosion products at the interface between the TRM jacket and the concrete, which affected the bonding properties.…”

Section: Effect Of Parameters On the Confinement Effectivenessmentioning

confidence: 99%

Strengthening of Concrete Structures with Textile Reinforced Mortars: State-of-the-Art Review

et al. 2019

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Textile reinforced mortars (TRM), also known in the international literature as textile reinforced concrete (TRC) or fabric reinforced cementitious matrix (FRCM) materials, have been widely studied during the last two decades as they constitute a promising alternative to the fiber reinforced polymer (FRP) retrofitting solution for strengthening of reinforced concrete members. This paper presents a state-of-the-art review on the strengthening of concrete structures with TRM. First, the tensile and bond behavior of TRM is described. Next, an overview of studies on the use of TRM for flexural, shear, confinement, and seismic retrofitting of concrete or RC members is included, and the key parameters are investigated.

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“…The mix proportion was provided in the literature (16), as shown in Table 4. The measured compressive strength of the cubes with dimensions of 70.7 mm× 70.7 mm× 70.7 mm at 28 days was 52.8 MPa.…”

Section: Fine-grained Concretementioning

confidence: 99%

Compression performance and bearing capacity calculation model of small-eccentricity columns strengthened with textile-reinforced mortar (TRM)

Yin

Hua

2019

Mater. construcc.

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To study the compression performance of TRM-strengthened columns with small eccentricities, a total of 9 reinforced concrete (RC) columns with end corbels were subjected to compression testing. The test parameters are as follows: the number of textile layers, the ratio of longitudinal reinforcement, and polyvinyl alcohol (PVA) short-cut fiber volume fraction. The experimental results indicated that, compared to the control, columns with three layers of textile exhibited an approximately 10.66% increase in the bearing capacity. However, the effect increased only slightly when the number of textile layers increased to 4. Besides, the effect was improved with the increase in the ratio of longitudinal reinforcement and PVA fiber volume fraction. Finally, based on laboratory tests and related research results, a model for calculating normal section bearing capacity of TRM-strengthened columns with small eccentricities was presented. A comparison of the theoretical and experimental data demonstrated the applicability of the proposed model.

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Research on Mechanical Properties of Axial-Compressive Concrete Columns Strengthened with TRC under a Conventional and Chloride Wet-Dry Cycle Environment

Cited by 36 publications

References 21 publications

Combined Effects of Sustained Loads and Wet-Dry Cycles on Durability of Glass Fiber Reinforced Polymer Composites

Combined Effects of Sustained Loads and Wet-Dry Cycles on Durability of Glass Fiber Reinforced Polymer Composites

Strengthening of Concrete Structures with Textile Reinforced Mortars: State-of-the-Art Review

Compression performance and bearing capacity calculation model of small-eccentricity columns strengthened with textile-reinforced mortar (TRM)

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