Mechanical properties of vertical vibration compacted lime–fly ash-stabilized macadam material

Deng, Changqing; Jiang, Yingjun; Yuan, Kejia; Tian, Tian; Yi, Yong

doi:10.1016/j.conbuildmat.2020.119089

Cited by 23 publications

(12 citation statements)

References 28 publications

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“…The VVTE parameters are the most important VVCM information ( Figure 1 ) [ 18 , 21 , 22 , 23 , 26 , 27 , 28 ]. Its working parameters include a vibration frequency of 35 Hz, nominal amplitude of 1.2 mm, vibration force of 7.6 kN, and upper- and lower-system weights of 120 and 180 kg, respectively.…”

Section: Experimental Designmentioning

confidence: 99%

“…However, with the development of modern transportation and construction technology and the deepening of engineering practice, the traditional method has lagged behind actual practice. The optimal moisture content determined by the HCTM is too large, and the maximum dry density too small; the correlation between the strength of specimens formed by SPCM and the actual core strength of the road surface is less than 70% [18]. To solve these problems, Jiang et al studied the effects of compaction method on the mechanical properties of inorganic binder-stabilized materials [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…The optimal moisture content determined by the HCTM is too large, and the maximum dry density too small; the correlation between the strength of specimens formed by SPCM and the actual core strength of the road surface is less than 70% [ 18 ]. To solve these problems, Jiang et al studied the effects of compaction method on the mechanical properties of inorganic binder-stabilized materials [ 18 , 19 , 20 , 21 , 22 , 23 ]. They verified the reliability of VVCM in the compaction of cement-stabilized materials in the laboratory by optimizing the working parameters of the vertical vibration test equipment (VVTE).…”

Section: Introductionmentioning

confidence: 99%

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Cement-Modified Loess Base for Intercity Railways: Mechanical Strength and Influencing Factors Based on the Vertical Vibration Compaction Method

Jiang

et al. 2020

Materials

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Cement-modified loess has been used in the recent construction of an intercity high-speed railway in Xi’an, China. This paper studies the mechanical strength of cement-modified loess (CML) compacted by the vertical vibration compaction method (VVCM). First, the reliability of VVCM in compacting CML is evaluated, and then the effects of cement content, compaction coefficient, and curing time on the mechanical strength of CML are analyzed, establishing a strength prediction model. The results show that the correlation of mechanical strength between the CML specimens prepared by VVCM in the laboratory and the core specimens collected on site is as high as 83.8%. The mechanical strength of CML initially show linear growth with increasing cement content and compaction coefficient. The initial growth in CML mechanical strength is followed by a later period, with mechanical strength growth slowing after 28 days. The mechanical strength growth properties of the CML can be accurately predicted via established strength growth equations. The results of this study can guide the design and construction of CML subgrade.

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Section: Experimental Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cement-Modified Loess Base for Intercity Railways: Mechanical Strength and Influencing Factors Based on the Vertical Vibration Compaction Method

Jiang

et al. 2020

Materials

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“…In recent years, nanotechnology has been widely used in asphalt modification, which has obvious effect on improving the hightemperature performance of asphalt [1][2][3][4][5]. Caputo et al introduced the properties of nanoparticles in an easy to review their use in bitumen and asphalt preparation and Silica, ceramic, clay, other oxides, and inorganic nanoparticles and discussed the framework of their use in bitumen and asphalt preparation for various scopes [6].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Response and Structure Optimization of Nanomodified Asphalt Pavement

Tian²,

Zhang

2021

Advances in Civil Engineering

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Nanomaterials are widely used in the preparation of modified asphalt because they can improve the high-temperature performance of matrix asphalt and have achieved good engineering results. However, the existing research mainly focuses on the material analysis and formula development of nanomodified asphalt and has not yet been involved in the mechanical response of the nanomodified asphalt pavement structure. The mechanical response contains the horizontal tensile stress and the vertical compressive stress of SiO2 modified asphalt pavement. It is unable to propose the matching pavement structure combination for the unique material characteristics of nanomodified asphalt, which leads to the increase of the possibility of pavement diseases and material waste. Hence, considering that semirigid base is the most widely used base type in China, two different structural models of nanomodified asphalt pavement are established according to the current specifications. The effects of pavement thickness, material type, and pavement design parameters on the mechanical response of nanomodified asphalt pavement are analyzed, and then the principle of optimal mechanical performance is taken and the optimal combination of nanomodified asphalt pavement structure is proposed.

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“…Since the reform and opening-up, China's highway transportation construction has been changing rapidly and has developed quickly [1,2], but rutting has always been one of the most important diseases of China's highway asphalt pavement [3,4]. Rutting will greatly affect driving safety and road aesthetics and have a significant negative impact on highway operations [5].…”

Section: Introductionmentioning

confidence: 99%

Environment Effect on the Rutting Resistance of Nano‐SiO₂‐Modified Asphalt Concrete: Temperature and Water

Yao¹,

Xuanyu

2021

Advances in Civil Engineering

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Nanoparticles have been widely adopted to improve the high-temperature performance of asphalt binder. However, the influence of moisture on high-temperature performance is not clear. Hence, the water absorption performance of the nano-SiO2-modified asphalt concrete is investigated. Based on this, to further analyze the pavement performance of the nano-SiO2-modified asphalt concrete, the coupled effects of high-temperature, moisture content, and nanoparticles content on the rutting resistance of the nano-SiO2-modified asphalt concrete are tested and revealed in this study. Results show that temperature has the most significant influence on the water absorption performance of the nano-SiO2-modified asphalt concrete. The rutting resistance of the nano-SiO2-modified asphalt concrete decreases as temperature and moisture content increase, especially for the temperature. The dynamic stability at the same temperature condition decreases approximately linearly as moisture content increases. The effect of the nano-SiO2 content is the most nonobvious.

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Mechanical properties of vertical vibration compacted lime–fly ash-stabilized macadam material

Cited by 23 publications

References 28 publications

Cement-Modified Loess Base for Intercity Railways: Mechanical Strength and Influencing Factors Based on the Vertical Vibration Compaction Method

Cement-Modified Loess Base for Intercity Railways: Mechanical Strength and Influencing Factors Based on the Vertical Vibration Compaction Method

Mechanical Response and Structure Optimization of Nanomodified Asphalt Pavement

Environment Effect on the Rutting Resistance of Nano‐SiO₂‐Modified Asphalt Concrete: Temperature and Water

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Mechanical properties of vertical vibration compacted lime–fly ash-stabilized macadam material

Cited by 23 publications

References 28 publications

Cement-Modified Loess Base for Intercity Railways: Mechanical Strength and Influencing Factors Based on the Vertical Vibration Compaction Method

Cement-Modified Loess Base for Intercity Railways: Mechanical Strength and Influencing Factors Based on the Vertical Vibration Compaction Method

Mechanical Response and Structure Optimization of Nanomodified Asphalt Pavement

Environment Effect on the Rutting Resistance of Nano‐SiO2‐Modified Asphalt Concrete: Temperature and Water

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Product

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Environment Effect on the Rutting Resistance of Nano‐SiO₂‐Modified Asphalt Concrete: Temperature and Water