Study on the dynamic compressive resilient modulus and frost resistance of semi-rigid base materials

Wang, Yiqi; Tan, Yiqiu; Guo, Meng; Liu, Zhiyang; Wang, Xinglong

doi:10.1080/14680629.2017.1329880

Cited by 19 publications

(7 citation statements)

References 13 publications

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“…For the compressive resilient modulus tests, the loading gradually increased from a low load to a high load. The maximum values of the loading band were collected as well as their corresponding displacement variations [25].…”

Section: Preparation and Test Methodsmentioning

confidence: 99%

Influence of Some Additives on the Properties of OPC Solidified Sandy Silt

Chen

Zhang

et al. 2021

Applied Sciences

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The ordinary Portland cement (OPC)-based solidification process is used extensively to reinforce soils due to its available and good bonding properties. Alternative products are used in cementitious materials to enhance the strength and to reduce OPC consumption. In this study, the effect of additive type and mass fraction on the microstructure and mechanical properties of solidified sandy silt are investigated. There are four types of additives (gypsum, lime, clay particles, and fly ash) at mass fractions of 2, 3, and 4% that are considered in order to study their mechanical properties (unconfined compression, indirect tensile, flexural strength, and compressive resilient modulus) at 7, 14, 28, 60, and 90 days. The optimal contents of additive gypsum, clay particles, and fly ash are determined to be 2%, 4%, and 4%, respectively. Such improvement of additive-modified OPC solidified sandy silt is due to the formation of the crystalline compound or the gradation composition improvement via field emission scanning electron and X-ray diffraction analysis.

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Section: Preparation and Test Methodsmentioning

confidence: 99%

Influence of Some Additives on the Properties of OPC Solidified Sandy Silt

Chen

Zhang

et al. 2021

Applied Sciences

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“…The stress was recorded by the UTM stress sensor (UTM-100, IPC, Milan, Italy) and the strain was measured by the Linear Variable Differential Transformer (LVDT, UTM-LVDT, IPC, Milan, Italy) attached on the specimen surface. The dynamic modulus of semi-rigid materials at different loading cycle and different frequency was calculated automatically by the UTM [14].…”

Section: Dynamic Modulus Testmentioning

confidence: 99%

“…Sheng et al also studied the influence of elastic modulus on the pore pressure of the semirigid pavement and established correlations between semi-rigid base modulus and pore pressure [13]. Wang et al investigated the dynamic compressive resilient modulus of semi-rigid base materials and demonstrated that the cement content and curing time are the main factors [14]. The research of Yao et al reached the same conclusion [15][16][17].…”

Section: Introductionmentioning

confidence: 96%

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Assessment of Modulus Attenuation of Cement and Lime-Fly Ash Semi-Rigid Road Base Materials

Yao

Ying

et al. 2022

Coatings

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For asphalt pavement structures, semi-rigid road base course has to sustain repeated high-axle load during its service life and the performance of semi-rigid road base materials directly influences the durability of pavement structures. The dynamic compressive resilience modulus of two commonly used semi-rigid road base materials, cement stabilized aggregates (CSG) and lime-fly ash stabilized aggregates (LFSG) were evaluated at different frequencies using a Universal Testing Machine (UTM). The results showed that LFSG had higher dynamic modulus than that of CSG and the load frequency had less influence on the dynamic modulus of these two semi-rigid road base materials. The four-point bending test was applied to measure the flexural-bending strength and the fatigue life of these two semi-rigid materials. A higher flexural-bending strength of LFSG indicated its better bearing capacity than that of CSG. The fatigue life of LFSG and CSG decreased with the increase of stress–strength ratio and the LFSG performed better in terms of fatigue resistance. The fatigue damage models of CSG and LFSG based on Stress-Life (S-N) curve are established. As per incremental-recursive mechanics, a general modulus degradation model was established and verified by the results of full-scale accelerate loading test. This model cannot only be used to predict the fatigue deterioration of semi-rigid road base materials under different stress levels, but is also able to calculate the current bending elastic modulus based on its initial modulus value.

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“…Most of the asphalt pavement of high-grade highways in China adopts a semi-rigid base structure with enough strength and rigidity, good integrity, strong diffusion stress ability and good water stability, which can ensure the stability of the base [1][2][3]. But a semi-rigid base is prone to shrinkage crack and low temperature shrinkage crack [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Research on the Anti-Reflective Cracking Performance of a Full-Depth Asphalt Pavement

Hou¹,

Li²,

et al. 2021

Sustainability

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In order to analyze the anti-reflective cracking performance of a full-depth asphalt pavement and study the propagation process of a reflection crack and its influencing factors, a mechanical model of pavement structural crack analysis was established based on the ABAQUS finite element software and the extended finite element method (XFEM). Based on two different loading modes of three-point bending and direct tension, the propagation process of a reflection crack is analyzed. The results show that the anti-reflective cracking performance of a full-depth asphalt pavement is better than that of a semi-rigid base pavement structure, and the loading mode II based on direct tension is more consistent with the propagation mechanism of pavement reflection cracks, while the loading mode II is more suitable for analyzing the anti-reflective cracking performance of the pavement structure. Appropriately reducing the elastic modulus of the stress-absorbing layer can significantly improve the anti-reflective cracking performance of the full-depth asphalt pavement.

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Study on the dynamic compressive resilient modulus and frost resistance of semi-rigid base materials

Cited by 19 publications

References 13 publications

Influence of Some Additives on the Properties of OPC Solidified Sandy Silt

Influence of Some Additives on the Properties of OPC Solidified Sandy Silt

Assessment of Modulus Attenuation of Cement and Lime-Fly Ash Semi-Rigid Road Base Materials

Research on the Anti-Reflective Cracking Performance of a Full-Depth Asphalt Pavement

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