Strength and mechanical behavior of short polypropylene fiber reinforced and cement stabilized clayey soil

Tang, Chao‐Sheng; Shi, Bin; Wei, Gao; Chen, Fei; Cai, Yuanqiang

doi:10.1016/j.geotexmem.2006.11.002

Cited by 720 publications

(316 citation statements)

References 24 publications

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“…It should also be noted that the UCS values increased with curing periods up to 60 days and relatively stayed constant after that. Similar observations were reported by Tang et al 2007 for clayey soils reinforced with short polypropylene fibers in the presence of cement.…”

Section: Effect Of Curing Periodsupporting

confidence: 90%

“…The randomly distributed fiber as reinforcement limit the potential planes of weakness that can develop parallel to oriented reinforcement. The influence of randomly oriented fibers on the mechanical and dynamic properties of fine grained soils has been reported by Maher and Ho (1994), Nataraj and McManis (1997), Cai et al (2006), Ozkul and Baykal (2006) and Tang et al (2007). Moreover, it is essential to realize that the degradation of synthetic fiber reinforcements which occurs with time (aging) depends on numerous factors such as the specific fiber, configuration of the fiber reinforcements, the environment to which they are exposed, saturation due to percolation of water, the level of stress to which they are subjected, exposure to construction stresses, leaching and/or biological attack of additives and stabilizers that improve the resistance of the basic polymer (Abu-Sharkh and Hamid 2004).…”

Section: Factors Affecting the Variability Associated With Ucsmentioning

confidence: 96%

“…Another study by Tang and Shi (2007) showed that the inclusion of fiber reinforcement within uncemented and cemented soil caused an increase in the UCS, shear strength and axial strain at failure. Increasing fiber content could increase the peak axial stress and decrease the stiffness, and the loss of post-peak strength weakens the brittle behavior of cemented soil.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Target Reliability Approach to Study the Effect of Fiber Reinforcement on UCS Behavior of Lime Treated Semiarid Soil

Moghal

Chittoori

Basha

et al. 2017

J. Mater. Civ. Eng.

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This paper evaluates the effectiveness of stabilizing expansive soil with two different types of fibers, Fiber Mesh® (FM) and Fiber Cast® (FC), in conjunction with chemical stabilization. The intention of this study is to evaluate the effect of these fibers and lime in stabilizing expansive soil by improving its UCS behavior. The effect of varying lengths (6 mm and 12 mm) and amounts (0.2, 0.4 and 0.6% dosage by weight of soil) of FC and FM fibers and curing periods (0, 7, 28, 60, 120, 180 and 360 days) on the UCS and on secant modulus of a semi-arid expansive soil, in the presence of lime, was investigated. The main focus of this paper is on the determination of optimum fiber reinforcement parameters (in terms of fiber type, length and dosage) for the stabilization of expansive soil in terms of UCS, which is of a prime importance in soil stabilization projects for practicing engineers. In deterministic optimization, the uncertainties associated with subgrade soil of the pavement system are not explicitly taken into account. Hence, resulting optimal solutions may lead to reduced reliability levels of the pavement. Therefore, this paper also focuses on determining the optimum amounts of reinforcement for desired UCS performance of lime blended expansive soil using target reliability approach (TRA). The experimental data was used to develop a parabolic model using factors such as, length and dosage of fiber types to predict UCS as a response variable. In addition, it was concluded that the TRA can be successfully employed in expansive soil stabilization applications in determining the optimum length and dosage of fiber reinforcements.

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Section: Effect Of Curing Periodsupporting

confidence: 90%

Section: Factors Affecting the Variability Associated With Ucsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Target Reliability Approach to Study the Effect of Fiber Reinforcement on UCS Behavior of Lime Treated Semiarid Soil

Moghal

Chittoori

Basha

et al. 2017

J. Mater. Civ. Eng.

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“…It is shown that the strength of the mixture of soil cement is increased in comparison with the natural soil and this increase of strength is dependent on the percent of cement; the higher the percent of cement the greater is the strength achieved. These results also indicate that by adding cement to the soil the ductility of the soil is reduced and the brittle behavior is increased as also indicated by Tang et al (2007) and Bahar et al (2004). Fig.1 shows the stress-strain curves of the contaminated soil-cement at 7 days soil-cement.…”

Section: Methodsmentioning

confidence: 61%

Stabilization and Solidification of a Clay Soil Contaminated with MTBE

2017

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Stabilization and solidification a clay soil contaminated with MTBE Abstract:This paper presents an investigation into stabilization and solidification of a clay soil contaminated with MTBE (Methyl Butyl Ether) using two different agents (cement and mixture of bentonite and cement) through a program of laboratory experiments. The samples were prepared in two stages. In the first stage they were prepared with 20 and 30% cement but in the second stage they were prepared with 20 and 30% mixtures of bentonite and cement (with ratios of bentonite to cement equal to 1:1 and 3:1).Unconfined compression tests (UCT) and leaching tests using GC (Gas Chromatography) apparatus were conducted on the samples that were prepared in the above two stages at different curing times. The results show that by using cement, the strength of the soil is increased. The results of the leaching tests on contaminated soil show a major reduction in the concentration of MTBE. Adding cement to contaminated soil causes reduction in concentration of MTBE but by increasing the curing time the concentration of MTBE is increased. It is also indicted that using combination of bentonite and cement leads to reduction in MTBE concentration and the amount of reduction is decreased by increasing the curing time. The bentonite-cement ratio of 3:1 is more effective than 1:1 in reducing the concentration of MTBE.

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“…The investigation indicated significant improvement in CBR value, angle of internal friction and modulus of subgrade reaction. Teng et al [6] reported the stabilization of clayey soil with cement and fibers. It was observed that the fiber reinforcement increased UCS and shear strength.…”

Section: Introductionmentioning

confidence: 99%

Strength Characterization of Fiber Reinforced Cement–Fly Ash Mixes

Chore

Vaidya

2015

Int. J. of Geosynth. and Ground Eng.

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The experimental investigation for the characterization of strength of fiber reinforced cement-fly ash mixes is presented in this paper. The objective of the investigation was to quantify the optimum quantity of cement contents and randomly distributed polypropylene fibers on the performance of cement stabilized and fiber reinforced fly ash mixes. Four samples of the mixes were considered in this investigation. For each sample, the fly ash was replaced by 5, 10, 15 and 20 % cement content, respectively. Similarly, the contents of the fibers were also varied by 0, 0.5, 1, and 1.5 %, respectively. The aspect of soaking was also considered. The samples were cured for 7, 14 and 28 days respectively. For the purpose of evaluation, unconfined compressive strength test and Brazilian (i.e., indirect) tensile strength test were conducted. The results obtained indicate significant improvement in strength with the inclusion of fibers and cement. The investigation underscores the effective utilization of pozzolanic waste such as fly ash as a civil engineering material.

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Strength and mechanical behavior of short polypropylene fiber reinforced and cement stabilized clayey soil

Cited by 720 publications

References 24 publications

Target Reliability Approach to Study the Effect of Fiber Reinforcement on UCS Behavior of Lime Treated Semiarid Soil

Target Reliability Approach to Study the Effect of Fiber Reinforcement on UCS Behavior of Lime Treated Semiarid Soil

Stabilization and Solidification of a Clay Soil Contaminated with MTBE

Strength Characterization of Fiber Reinforced Cement–Fly Ash Mixes

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