Design and performance of porous asphalt mixture for predestrian/cyclist applications in Singapore

Chen, Mengjia

doi:10.32657/10356/67037

Cited by 3 publications

(3 citation statements)

References 44 publications

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“…The results indicate that mixtures with fibers exhibit improved mechanical and durability properties. Yanchao [21] observed enhanced road performance when GF (another type of fiber) was incorporated into GF concrete for pavement subgrade compared to the control group. These studies explored the feasibility of applying different fibers to concrete in various scenarios.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Fiber on the Mechanical Properties of Controllable Low-Strength Materials

Qian

Jiang

2023

Materials

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Numerous studies have been conducted on fiber-reinforced concrete; however, comparative investigations specifically focusing on the utilization of fibers in CLSM remain limited. In this study, we conducted a systematic investigation into the mechanical properties of controlled low-strength material (CLSM) by manipulating the length and doping amount of fibers as control variables. The 7-day compressive strength (7d-UCS), 28-day compressive strength (28d-UCS), and 28-day splitting strength of CLSM were employed as indicators to evaluate the material’s performance. Based on our comprehensive analysis, the following conclusions were drawn: (1) A positive correlation was observed between fiber length and material strength within the range of 0–6 mm, while conversely, a negative correlation was evident. Similarly, when the fiber doping was within the range of 0–0.3%, a positive correlation was identified between material strength and fiber doping. However, the strength of CLSM decreased when fiber doping exceeded 0.3%. (2) SEM and PCAS analyses provided further confirmation that the incorporation of fibers effectively reduced the porosity of the material by filling internal pores and interacting with hydration products, thereby forming a mesh structure. Overall, this study offers valuable insights into the manipulation of fiber length and doping amount to optimize the mechanical properties of CLSM. The findings have important implications for the practical application of CLSM, particularly in terms of enhancing its strength through fiber incorporation.

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Section: Introductionmentioning

confidence: 99%

The Influence of Fiber on the Mechanical Properties of Controllable Low-Strength Materials

Qian

Jiang

2023

Materials

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“…One of the most common test methods is the standard rutting test. Later, more test methods are gradually promoted, such as static, dynamic and repeated loading tests of uniaxial / triaxial / radial of cylindrical specimens, bending creep test of prismatic specimens, and rutting test by using small scale simulation test equipment [1] . In spite of the above numerous test methods, the expensive test equipment and higher requirements for the operating personnel hinder its wide application.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Test Methods for High-Temperature Performance of Asphalt Mixtures

Zhang

Wang

2013

AMM

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Through a comparative study of high-temperature asphalt mixture performance by three methods: the standard rutting test, uniaxial penetration test on cylindrical specimens, and slant shear test, this paper displays that the shear elastic modulus gained by both cylindrical uniaxial penetration test and slant shear test can reflect well the properties of shear deformation of asphalt mixture under high temperature. However, there are certain limitations in these test methods.

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“…For the first phase of research work, the optimum asphalt dosages of Marshall test wered calculated by means of Marshall test which is to provide a basis for asphalt dosages of rutting test. The results of Marshall test of three different gradations are given in Table 5[7]. The second part of this study, firstly the rutting test specimens (300mm×300mm×50mm) using different mix parameters wered prepared.…”

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confidence: 99%

Experiment Study of Influence Factors on High-Temperature Stability of Closely Gap-Graded Bituminous Mixture

Guo

Feng

Ping

2012

AMR

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Rutting in asphalt pavements continues to create problems for pavement. The aim of this study was to analyze the influence of different gradation composition, asphalt dosage, temperature and dosage of anti-rutting agent on high-temperature stability of cosely gap-graded bituminous mixture. To achieve this objective, 171 different rutting specimens using different mix parameters were analyzed for their the high-temperature stability. The mix parameters include: three types of aggregate gradation, five types of asphalt dosage, four types of temperature and five types of anti-rutting agent dosage. Study results indicate that adding proper content of coarse aggregate can play occluding and wedging role in aggregate mixture. The optimal bituminous dosage in rutting test are lower 0.1%~0.3% than that in Marshell test. At 65°C, the high-temperature stability of the cosely gap-graded bituminous mixture is not able to meet the requirement of standards. The optimal dosage of anti-rutting agent are equal to 0.3% in case of no increasing bituminous dosage.

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Design and performance of porous asphalt mixture for predestrian/cyclist applications in Singapore

Abstract: Professor Wong Yiik Diew, for his valuable suggestions and continuous encouragement in the research work. Without his great support, this thesis report would not have been done.

Cited by 3 publications

References 44 publications

The Influence of Fiber on the Mechanical Properties of Controllable Low-Strength Materials

The Influence of Fiber on the Mechanical Properties of Controllable Low-Strength Materials

Comparison of Test Methods for High-Temperature Performance of Asphalt Mixtures

Experiment Study of Influence Factors on High-Temperature Stability of Closely Gap-Graded Bituminous Mixture

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