Performance of plastic concrete under true tri-axial compressive stress

Song, Shuaiqi; You, Peibo

doi:10.1016/j.conbuildmat.2020.121106

Cited by 6 publications

(2 citation statements)

References 8 publications

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“…Under low limiting pressure, the failure mode was the same as that of brittle materials, and there was an obvious peak strength point when the sample fails; For higher confining pressures, the specimen behaved as a ductile material [21]. Song et al [22] considered that the stress-strain curve of plastic concrete could generally be divided into four sections through a true triaxial compression stress test. The initial section had obvious elastic characteristics.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of road performance and micro-mechanism analysis of bentonite plastic concrete subgrade

Guoming,

Xiaolin,

Zenghui

et al. 2024

Mater. Res. Express

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This study evaluated the performance of bentonite plasticized concrete with good deformation coordination as a road base material, to address the poor deformation coordination of rigid base layers in roads. Through tests such as slump, strength, permeability, and scanning electron microscopy (SEM) and X-ray diffraction (XRD), the study analyzed the variations in workability, mechanical properties, and durability of plastic concrete as a base material under different bentonite and cement contents, as well as the underlying micro-mechanisms. The results showed that plastic concrete exhibited good workability, which improved with increased bentonite and cement content. The 28-day mechanical properties of the plastic concrete met the design criteria for road base layers and had features of higher load-bearing capacity, good toughness, slow strength attenuation, and overall integrity. In durability, the increase of bentonite content enhanced the concrete's permeability, but decreased abrasivenes and shrinkage. From economic, performance, and engineering perspectives, the optimal bentonite and cement contents for the plastic concrete base were in the ranges of 90kg/m3 to 120kg/m3 and 110kg/m3 to 150kg/m3, respectively.

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Section: Introductionmentioning

confidence: 99%

Evaluation of road performance and micro-mechanism analysis of bentonite plastic concrete subgrade

Guoming,

Xiaolin,

Zenghui

et al. 2024

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…Some scholars 9,12 have used the Coulomb failure criterion to obtain the effective shear strength parameters of plastic concrete, such as the internal friction Angle and cohesion, and found that the cohesion and internal friction Angle are affected by the bentonite content. Song et al 16 made three formulas with four parameters, three parameters and two parameters to express the failure criterion of plastic concrete under true triaxial compression. Based on the octahedral stress space, Hu et al 15 proposed the quadratic polynomial form of true triaxial compressive stress failure criterion based on the test data.…”

Section: Introductionmentioning

confidence: 99%

Stress–strain behavior and constitutive relation of rubberized plastic concrete under uniaxial and triaxial compression

Feng

Chen

Liu

2023

Structural Concrete

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Plastic concrete is a kind of flexible concrete cutoff wall material, which is used to solve the problem of poor coordinated deformation ability between ordinary concrete cutoff wall and surrounding soil. It has the characteristics of small elastic modulus and large limit strain, which greatly improves the operation condition of cutoff wall. In order to save bentonite resources and recycle waste automobile tires, this paper crushed waste automobile tires into rubber particles and mixed them into plastic concrete, through the uniaxial compression test and triaxial compression test, obtained the corresponding stress–strain curve, rubberized plastic concrete strength and deformation properties are studied and the rubber particles and the relationship between dosage. The test results show that the compressive strength of rubberized plastic concrete decreases with the increase of rubber particles content, but the deformation capacity increases with the increase of rubber particles content. In this paper, the regression analysis of rubberized plastic concrete constitutive relation and failure criterion including the influence factor of rubber particles are helpful to promote the engineering application of rubberized plastic concrete and reduce the exploitation of natural resources and environmental pollution.

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A Modified Strain Softening–Hardening Constitutive Model for Plastic Concrete Cut-off Wall

2023

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Performance of plastic concrete under true tri-axial compressive stress

Cited by 6 publications

References 8 publications

Evaluation of road performance and micro-mechanism analysis of bentonite plastic concrete subgrade

Evaluation of road performance and micro-mechanism analysis of bentonite plastic concrete subgrade

Stress–strain behavior and constitutive relation of rubberized plastic concrete under uniaxial and triaxial compression

A Modified Strain Softening–Hardening Constitutive Model for Plastic Concrete Cut-off Wall

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