A new approach to evaluating the moisture damage of semi-rigid base materials based on the eroding test by the hydrodynamic pressure generator

Sha, Dingguo; Pan, B.; Sun, Yiren; Che, Tiankai; Lu, Jiale

doi:10.1016/j.conbuildmat.2019.07.339

Cited by 7 publications

(5 citation statements)

References 11 publications

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“…Due to the collapsibility of loess, the deterioration of the compressive strength is aggravated by the invasion and erosion of water loading. ese findings are consistent with research that shows that the damage of the materials under cyclic erosion of hydrodynamic pressure is a cumulative process that can result in the strength degradation of the material properties [13,[28][29][30][31].…”

Section: Cement Content (%)supporting

confidence: 90%

“…Other scholars have conducted tests using different erosion test methods [12][13][14]. In France, a rotary brush made of steel wire, which originated from the French roads department, was applied to test the antierosion performance of a specimen.…”

Section: Introductionmentioning

confidence: 99%

“…In China, an experimental method for studying the erosion resistance of semirigid base materials using the material testing system (MTS) was proposed, and this method has been compiled into the Test Methods of Materials Stabilized with Inorganic Binders for Highway Engineering (JTG E51-2009) (JTG E51-2009) [17]. Recently, some new approaches have been taken in evaluating the water damage, and the antierosion performance of inorganicbinder-stabilized soil has also been put forward [13,14]. In addition, some scholars have also sought to establish the correlation function between the materials stabilized using an inorganic binder and the erosion parameters, and an erosion prediction model has been proposed, based on the analysis of the eroding test [18].…”

Section: Introductionmentioning

confidence: 99%

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Influencing Factors and Prediction Model for the Antierosion Performance of Cement‐Improved Loess Compacted Using Different Compaction Methods

Yuan

Jiang

Cai

et al. 2021

Advances in Materials Science and Engineering

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To analyze the antierosion performance of cement-improved loess (CIL), several influencing factors have been investigated based on two different compaction methods, which include the quasi-static compaction method (QSCM) and the vertical vibration compaction method (VVCM). Then, a prediction model for the cumulative erosion mass loss (CEML) has been established. The effects of erosion on the strength deterioration of CIL were also studied. The results show that, compared with QSCM, specimens compacted using the VVCM have better antierosion performance. As the cement content and the compaction coefficient are increased by 1%, the antierosion performance is increased by 16% and 6.2%, respectively. The eroding time has a significant effect on the antierosion performance of CIL, and the CEML increases linearly with an increase in the eroding time. The compressive strength of CIL decreases significantly due to erosion, and based on the average deterioration degree of the specimens, the design criteria for strength of CIL are proposed, which can provide reference for the design of CIL.

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Section: Cement Content (%)supporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influencing Factors and Prediction Model for the Antierosion Performance of Cement‐Improved Loess Compacted Using Different Compaction Methods

Yuan

Jiang

Cai

et al. 2021

Advances in Materials Science and Engineering

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“…Meanwhile, as can be seen from the regression curves in Figure 7, despite the large differences in cement dosage and gradation type, there is a good correlation between air voids and the strength of semi-rigid base materials, especially a good linear correlation with the water penetration coefficient. Sha et al . (2019) showed a strong correlation between air voids and compressive strength and air voids can be used as a reliable index to evaluate the moisture sensitivity of semi-rigid substrates.…”

Section: Results and Analysismentioning

confidence: 99%

“…Shi et al (2022) tested the permeability and pressure evolution characteristics of semi-rigid base pavement and found that when the temperature difference increased from 28C to 5.98C, the infrared thermal difference method would reflect the gap and permeability coefficient of asphalt pavement. Sha et al (2019) used the developed dynamic water pressure generator to scour and erode the semi-rigid substrate and found that the deformation process under long-term hydrodynamic erosion can be roughly divided into five stages. In addition, there is a strong correlation between voids and compressive strength in erosion tests, which indicates that voids can be used as a reliable index to evaluate the moisture sensitivity of semi-rigid substrates.…”

Section: Introductionmentioning

confidence: 99%

Study on the design and laboratory investigation of permeable semi-rigid base material with large air voids

Li,

Xiao,

Zhao

et al. 2024

IJSI

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PurposeTo explore the economical and reasonable semi-rigid permeable base layer ratio, solve the problems caused by rainwater washing over the pavement base layer on the slope, improve its drainage function, improve the water stability and service life of the roadbed pavement and promote the application of semi-rigid permeable base layer materials in the construction of asphalt pavement in cold regions.Design/methodology/approachIn this study, three semi-rigid base course materials were designed, the mechanical strength and drainage properties were tested and the effect and correlation of air voids on their performance indexes were analyzed.FindingsIt was found that increasing the cement content increased the strength but reduced the air voids and water permeability coefficient. The permeability performance of the sandless material was superior to the dense; the performance of the two sandless materials was basically the same when the cement content was 7%. Overall, the skeleton void (sand-containing) type gradation between the sandless and dense types is more suitable as permeable semi-rigid base material; its gradation is relatively continuous, with cement content? 4.5%, strength? 1.5 MPa, water permeability coefficient? 0.8 cm/s and voids of 18–20%.Originality/valueThe study of permeable semi-rigid base material with large air voids could help to solve the problems of water damage and freeze-thaw damage of the base layer of asphalt pavements in cold regions and ensure the comfort and durability of asphalt pavements while having good economic and social benefits.

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Investigating the impact of zeolite on reducing the effects of changes in runoff acidity and the moisture sensitivity of asphalt mixtures

Arabani

Pirbasti

Hamedi

2021

Construction and Building Materials

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A new approach to evaluating the moisture damage of semi-rigid base materials based on the eroding test by the hydrodynamic pressure generator

Cited by 7 publications

References 11 publications

Influencing Factors and Prediction Model for the Antierosion Performance of Cement‐Improved Loess Compacted Using Different Compaction Methods

Influencing Factors and Prediction Model for the Antierosion Performance of Cement‐Improved Loess Compacted Using Different Compaction Methods

Study on the design and laboratory investigation of permeable semi-rigid base material with large air voids

Investigating the impact of zeolite on reducing the effects of changes in runoff acidity and the moisture sensitivity of asphalt mixtures

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