Influence of fiber type and content on freeze-thaw resistance of fiber reinforced lime stabilized clay

Boz, Aslı; Sezer, Alper

doi:10.1016/j.coldregions.2018.03.026

Cited by 73 publications

(33 citation statements)

References 38 publications

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“…Results showed that the improvement effect of the cement soil was better than that of lime soil and had a certain degree of resistance to F-T. Jahandari confirmed that compressive strength can be directly used to evaluate the F-T durability of lime soil [16], and Shihata's research shows that it is possible to use unconfined compressive strength (UCS) as an index to judge the F-T durability of cement soil [17]. Boz [18] added 0%, 0.5% and 1% polypropylene fiber into concrete to test its F-T resistance. The data show that the unconfined compressive strengths of PF reinforced samples are 76 kPa, 127 kPa and 134 kPa, respectively.…”

Section: Introductionmentioning

confidence: 91%

Freeze–Thaw Damage Model of Polypropylene Fiber Reinforced Cement Stabilized Waste Construction Slurry under Uniaxial Action

et al. 2021

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In order to apply the fiber reinforced cement stabilized waste construction slurry more widely, it is crucial to evaluate its mechanical behavior under freeze and thaw (F–T) cycles. The mechanical properties of fiber cement-modified waste construction slurry (FCMS) under five different F–T cycles were studied using unconfined compressive strength tests. One fixed cement sample with five different types of polypropylene fiber was used in the FCMS. Using the meso random damage model, the two-stage damage stress–strain relationship of FCMS was established using particle swarm optimization (PSO). The results were as follows: (1) The mechanical properties of FCMS at room temperature and in an F–T environment were significantly improved by fiber; (2) The elastic modulus of FCMS decreased in the form of a power function with the increase of F–T cycles; (3) The fitting results of the two-stage F–T damage model based on meso random damage theory were in agreement with the measured data.

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Section: Introductionmentioning

confidence: 91%

Freeze–Thaw Damage Model of Polypropylene Fiber Reinforced Cement Stabilized Waste Construction Slurry under Uniaxial Action

et al. 2021

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“…Mechanical techniques primarily consist of the application of reinforcement materials with compaction. Fibre types used for reinforcement include polypropylene, nylon, coir, palm, and plastic waste strips [ 20 , 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Modification of Mechanical Properties of Expansive Soil from North China by Using Rice Husk Ash

2021

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The construction of buildings on expansive soils poses considerable risk of damage or collapse due to soil shrinkage or swelling made likely by the remarkable degree compressibility and weak shear resistance of such soils. In this research, rice husk ash (RHA) was added to expansive soil samples in different quantities of 0%, 4%, 8%, 12%, and 16% by weight of soil to determine their effects on the plasticity index, compaction parameters, consolidation performance, and California bearing ratio (CBR)of clay soil. The results show that the use of RHA increases the effective stress and decreases the void ratio and coefficient of consolidation. Adding 16% RHA resulted in the greatest reduction in the hydraulic conductivity, void ratio, and coefficient of consolidation. The void ratio decreased from 0.96 to 0.93, consolidation coefficient decreased from 2.52 to 2.33 cm2/s, and hydraulic conductivity decreased from 1.12 to 0.80 cm/s. The addition of RHA improved the soil properties and coefficient of consolidation due to the high density and cohesiveness of RHA. The results of this study can be used to provide a suitable basis for the treatment of expansive soil to provide improved conditions for infrastructure construction.

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“…Studies have shown that conventional stabilizers such as cement and lime and reinforcing materials such as natural or synthetic bers can be used to strengthen and improve the mechanical behavior, hydraulic properties and freeze-thaw durability and reduce the swelling potential of geotechnical materials (Consoli et Liu et al 2020). Polypropylene, steel, basalt, glass, carpet-waste, tire, and carbon bers have all been extensively studied for soil reinforcement (Akbulut et al 2007; Orakoglu et al 2017;Boz and Sezer 2018;Lv et al 2018Lv et al , 2019.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Behavior of Reinforced Silty Sand: Focus on Application of Nano-Silica or Kaolin Coated Ceramic Fibers as a Reinforcement Material

Eshaghzadeh¹,

Bayat²,

Ajalloeian³

et al. 2021

Preprint

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Many studies have been done on the stabilization of weak soil using conventional chemical stabilizers such as lime, cement as well as modern materials such as nanoparticles; however, very few studies have examined the effect of coated fibers on the strength of stabilized soil. This paper presents the results of a series of direct shear tests on soil specimens treated with ceramic fiber, nanosilica, and kaolin. The effects of ceramic fibers, fiber length, nanosilica, and kaolin on the mechanical characteristics and shear strength of silty sand was investigated. The results show that the addition of fiber to silty sand resulted in a significant increase in the strength of the soil specimens. The dilative behavior of the soil specimen decreased with the addition of ceramic fibers. The cohesion of the fiber-reinforced specimens increased when the fiber surface was coated with nanosilica or kaolin particles. The friction angle of the coated fiber-reinforced specimens decreased with the addition of nanosilica particles; however, the friction angle of the coated fiber-reinforced specimens was practically independent of the kaolin content.

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Influence of fiber type and content on freeze-thaw resistance of fiber reinforced lime stabilized clay

Cited by 73 publications

References 38 publications

Freeze–Thaw Damage Model of Polypropylene Fiber Reinforced Cement Stabilized Waste Construction Slurry under Uniaxial Action

Freeze–Thaw Damage Model of Polypropylene Fiber Reinforced Cement Stabilized Waste Construction Slurry under Uniaxial Action

Modification of Mechanical Properties of Expansive Soil from North China by Using Rice Husk Ash

Mechanical Behavior of Reinforced Silty Sand: Focus on Application of Nano-Silica or Kaolin Coated Ceramic Fibers as a Reinforcement Material

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