The Experts below are selected from a list of 246 Experts worldwide ranked by ideXlab platform
Chao-sheng Tang - One of the best experts on this subject based on the ideXlab platform.
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Tensile Strength of fiber reinforced soil
Journal of Materials in Civil Engineering, 2016Co-Authors: Chao-sheng Tang, De-yin Wang, Yujun Cui, Bin ShiAbstract:AbstractThe Tensile Strength of soil is an important mechanical parameter that controls the development of tension cracks. In this study, randomly distributed polypropylene fibers were employed to improve soil Tensile behavior. Direct Tensile tests were conducted on fiber-reinforced soil specimens with different fiber contents and compacted at different water contents and dry densities. Desiccation tests were also performed to evaluate the effectiveness of fiber reinforcement in improving soil Tensile cracking resistance. The Tensile test results showed that fiber inclusion significantly increased the soil peak Strength, reduced the postpeak Strength, and changed the brittle Tensile failure behavior to a more ductile one. Soil Tensile Strength increased with the increase in fiber content. The Tensile Strength of both reinforced and unreinforced specimens decreased with increasing water content and increased with increasing dry density. Moreover, a higher soil dry density showed a more positive effect in m...
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Tensile Strength of Fiber-Reinforced Soil
Journal of Materials in Civil Engineering, 2016Co-Authors: Chao-sheng Tang, De-yin Wang, Yujun Cui, Bin ShiAbstract:The Tensile Strength of soil is an important mechanical parameter that controls the development of tension cracks. In this study, randomly distributed polypropylene fibers were employed to improve soil Tensile behavior. Direct Tensile tests were conducted on fiber-reinforced soil specimens with different fiber contents compacted at different water contents dry densities. Desiccation tests were also performed to evaluate the effectiveness of fiber reinforcement in improving soil Tensile cracking resistance. The Tensile test results showed that fiber inclusion significantly increased the soil peak Strength, reduced the postpeak Strength, changed the brittle Tensile failure behavior to a more ductile one. Soil Tensile Strength increased with the increase in fiber content. The Tensile Strength of both reinforced unreinforced specimens decreased with increasing water content increased with increasing dry density. Moreover, a higher soil dry density showed a more positive effect in mobilizing the reinforcement benefit of fibers. Based on the fiber/soil interfacial interaction mechanisms, the fiber reinforcement benefits on soil Tensile behavior were analyzed. A linear relationship was obtained between the fiber reinforcement benefit the fiber/soil interfacial shear Strength. The desiccation test results showed that fiber inclusion significantly decreased soil cracking. The surface crack reduction ratio increased while the average crack width length decreased with increasing fiber content, suggesting that fiber reinforcement was efficient in impeding soil Tensile failure.
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Tensile Strength of Compacted Clayey Soil
Journal of Geotechnical and Geoenvironmental Engineering, 2015Co-Authors: Chao-sheng Tang, Xiang-jun Pei, De-yin Wang, Bin ShiAbstract:AbstractTensile Strength of soil plays an important role in controlling the cracking and Tensile failure of many earth structures. In this investigation, a direct Tensile test apparatus was developed to determine the Tensile Strength of compacted clayey soil over a broad range of water contents (4.3–28.5%) and with different dry densities (1.5–1.7 Mg/m3). The results show that the Tensile Strength of compacted clayey soil significantly depends on water content. The Tensile Strength characteristic curve (TSCC) exhibits one peak value occurring at the critical water content wc around 11.5%. With increasing water content, the Tensile Strength increases at the dry side of wc and then decreases at the wet side of it. Generally, with the increase of dry density, the Tensile Strength also increases. Moreover, a modified model is proposed to describe the Tensile Strength characteristics of compacted clayey soil, and it is validated by the obtained test data.
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effect of discrete fibre reinforcement on soil Tensile Strength
Journal of rock mechanics and geotechnical engineering, 2014Co-Authors: Jian Li, Chao-sheng Tang, Deying WangAbstract:Abstract The Tensile behaviour of soil plays a significantly important role in various engineering applications. Compacted soils used in geotechnical constructions such as dams and clayey liners in waste containment facilities can suffer from cracking due to Tensile failure. In order to increase soil Tensile Strength, discrete fibre reinforcement technique was proposed. An innovative Tensile apparatus was developed to determine the Tensile Strength characteristics of fibre reinforced soil. The effects of fibre content, dry density and water content on the Tensile Strength were studied. The results indicate that the developed test apparatus was applicable in determining Tensile Strength of soils. Fibre inclusion can significantly increase soil Tensile Strength and soil Tensile failure ductility. The Tensile Strength basically increases with increasing fibre content. As the fibre content increases from 0% to 0.2%, the Tensile Strength increases by 65.7%. The Tensile Strength of fibre reinforced soil increases with increasing dry density and decreases with decreasing water content. For instance, the Tensile Strength at a dry density of 1.7 Mg/m 3 is 2.8 times higher than that at 1.4 Mg/m 3 . It decreases by 30% as the water content increases from 14.5% to 20.5%. Furthermore, it is observed that the Tensile Strength of fibre reinforced soil is dominated by fibre pull-out resistance, depending on the interfacial mechanical interaction between fibre surface and soil matrix.
Deying Wang - One of the best experts on this subject based on the ideXlab platform.
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effect of discrete fibre reinforcement on soil Tensile Strength
Journal of rock mechanics and geotechnical engineering, 2014Co-Authors: Jian Li, Chao-sheng Tang, Deying WangAbstract:Abstract The Tensile behaviour of soil plays a significantly important role in various engineering applications. Compacted soils used in geotechnical constructions such as dams and clayey liners in waste containment facilities can suffer from cracking due to Tensile failure. In order to increase soil Tensile Strength, discrete fibre reinforcement technique was proposed. An innovative Tensile apparatus was developed to determine the Tensile Strength characteristics of fibre reinforced soil. The effects of fibre content, dry density and water content on the Tensile Strength were studied. The results indicate that the developed test apparatus was applicable in determining Tensile Strength of soils. Fibre inclusion can significantly increase soil Tensile Strength and soil Tensile failure ductility. The Tensile Strength basically increases with increasing fibre content. As the fibre content increases from 0% to 0.2%, the Tensile Strength increases by 65.7%. The Tensile Strength of fibre reinforced soil increases with increasing dry density and decreases with decreasing water content. For instance, the Tensile Strength at a dry density of 1.7 Mg/m 3 is 2.8 times higher than that at 1.4 Mg/m 3 . It decreases by 30% as the water content increases from 14.5% to 20.5%. Furthermore, it is observed that the Tensile Strength of fibre reinforced soil is dominated by fibre pull-out resistance, depending on the interfacial mechanical interaction between fibre surface and soil matrix.
M T Kortschot - One of the best experts on this subject based on the ideXlab platform.
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predicting the Tensile Strength of natural fibre reinforced thermoplastics
Composites Science and Technology, 2007Co-Authors: Angelo G Facca, M T KortschotAbstract:Abstract The Tensile Strength of short natural fibre reinforced thermoplastics (NFRT) was modeled using a modified rule of mixtures (ROM) Strength equation. A clustering parameter, requiring the maximum composite fibre volume fraction, forms the basis of the modification. The clustering parameter highlights that as fibre loading increases, the available fibre stress transfer area is decreased. Consequently, at high volume fractions this decrease in stress transfer area increases the brittleness of the short fibre composite and decreases the Tensile Strength of the material. A key parameter, the interfacial shear Strength, was determined by fitting the micromechanical Strength model to Tensile Strength data at low fibre loading (10 wt%) where there is minimal fibre clustering. To test the modified ROM Strength model, compression molded specimens of high-density polyethylene (HDPE) reinforced with hemp fibres, hardwood fibres, rice hulls, and E-glass fibres were created with fibre mass fractions of 10–60 wt%. The modified ROM Strength model was found to adequately predict the Tensile Strength of the various composite specimens.
Jian Li - One of the best experts on this subject based on the ideXlab platform.
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effect of discrete fibre reinforcement on soil Tensile Strength
Journal of rock mechanics and geotechnical engineering, 2014Co-Authors: Jian Li, Chao-sheng Tang, Deying WangAbstract:Abstract The Tensile behaviour of soil plays a significantly important role in various engineering applications. Compacted soils used in geotechnical constructions such as dams and clayey liners in waste containment facilities can suffer from cracking due to Tensile failure. In order to increase soil Tensile Strength, discrete fibre reinforcement technique was proposed. An innovative Tensile apparatus was developed to determine the Tensile Strength characteristics of fibre reinforced soil. The effects of fibre content, dry density and water content on the Tensile Strength were studied. The results indicate that the developed test apparatus was applicable in determining Tensile Strength of soils. Fibre inclusion can significantly increase soil Tensile Strength and soil Tensile failure ductility. The Tensile Strength basically increases with increasing fibre content. As the fibre content increases from 0% to 0.2%, the Tensile Strength increases by 65.7%. The Tensile Strength of fibre reinforced soil increases with increasing dry density and decreases with decreasing water content. For instance, the Tensile Strength at a dry density of 1.7 Mg/m 3 is 2.8 times higher than that at 1.4 Mg/m 3 . It decreases by 30% as the water content increases from 14.5% to 20.5%. Furthermore, it is observed that the Tensile Strength of fibre reinforced soil is dominated by fibre pull-out resistance, depending on the interfacial mechanical interaction between fibre surface and soil matrix.
Robert L Yuan - One of the best experts on this subject based on the ideXlab platform.
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experimental relationship between splitting Tensile Strength and compressive Strength of gfrc and pfrc
Cement and Concrete Research, 2005Co-Authors: Yeol Choi, Robert L YuanAbstract:Abstract This paper describes an experimental investigation into the relationship between the splitting Tensile Strength and compressive Strength of glass fiber reinforced concrete (GFRC) and polypropylene fiber reinforced concrete (PFRC). The splitting Tensile Strength and compressive Strength of GFRC and PFRC at 7, 28 and 90 days are used. Test results indicate that the addition of glass and polypropylene fibers to concrete increased the splitting Tensile Strength of concrete by approximately 20–50%, and the splitting Tensile Strength of GFRC and PFRC ranged from 9% to 13% of its compressive Strength. Based on this investigation, a simple 0.5 power relationship between the splitting Tensile Strength and the compressive Strength was derived for estimating the Tensile Strength of GFRC and PFRC.
