Peculiarity of low noise pavement design under Lithuanian conditions

Vaitkus, Audrius; Vorobjovas, Viktoras; Jagniatinskis, Aleksandras; Andriejauskas, Tadas; Fiks, Boris

doi:10.3846/bjrbe.2014.20

Cited by 11 publications

(4 citation statements)

References 9 publications

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“…The behavior of the different sound absorption peaks might indicate that some asphalt samples show better sound absorption within a specific low-frequency range from 400 Hz to 700 Hz. Experimental studies from different investigations on asphalt mixtures showed similar sound absorption behavior at different frequencies [45,46], confirming that the peaks of maximum sound absorption are associated with the low-frequency range.…”

Section: Volumetric Characterization Permeability and Macrotexturesupporting

confidence: 53%

Towards Sustainable Road Pavements: Sound Absorption in Rubber-Modified Asphalt Mixtures

Apaza,

Fernández Vázquez,

Paje

et al. 2024

Infrastructures

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In the last decade, various asphalt paving materials have undergone investigation for sound attenuation purposes. This research aims to delve into the innovative design of sustainable road pavements by examining sound absorption in rubber-modified asphalt mixtures. More specifically, the impact of alternative sustainable materials on the sound absorption of asphalt mixtures across different temperatures, precisely crumb rubber (CR) derived from recycling of end-of-life tires, was investigated. The acoustic coefficient and its Gaussian fit parameters (Peak, BandWidth, and Area Under the Curve) were evaluated. Five different types of asphalt mixtures were studied, encompassing dense, discontinuous, and open mixtures with 0%, 0.75%, and 1.50% CR incorporated through the dry process (DP). The results of sound absorption indicated a slight influence of crumb rubber at temperatures ranging from 10 °C to 60 °C, particularly in mixtures with high void content. On the other hand, as expected, the void content proved to be highly correlated with sound absorption. These findings facilitated the establishment of predictive models that correlate acoustic absorption spectra with the characteristics of asphalt mixtures. As a result, these models will be valuable in the design of the next generation of sound-absorbing pavements.

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Section: Volumetric Characterization Permeability and Macrotexturesupporting

confidence: 53%

Towards Sustainable Road Pavements: Sound Absorption in Rubber-Modified Asphalt Mixtures

Apaza,

Fernández Vázquez,

Paje

et al. 2024

Infrastructures

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show abstract

“…Annual social economic expenses of traffic noise exceed 40 billion EUR, of which 90% were caused by road-transport-generated noise [2]. Road transport noise is caused by noise from propulsion, aerodynamic resistance, and noise from tire and pavement interactions [3][4][5]. However, tire/road noise due to tire and pavement interactions is dominant at speeds above 40 km/h [6] and is influenced by four major factors [7][8][9][10]: pavement surface characteristics (surface texture, friction, aggregate properties, air-void content (porosity), pavement materials and their properties, pavement age, and durability); tire characteristics (tire dimensions, rubber hardness, trend pattern, tire age and wear, studs, and tire number); environmental factors (temperature, moisture, wind, water film thickness, and dust); and driver-controlled factors (driving speed, tire load and pressure, tangential forces, and acceleration).…”

Section: Introductionmentioning

confidence: 99%

Asphalt Pavement Acoustic Performance Model

et al. 2019

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Low-noise pavements are used as an effective method of traffic noise mitigation. Low-noise pavements reduce the noise that arises due to interactions between tires and road surfaces (tire/road) via the implementation of three main components: low pavement roughness, negative pavement texture, and a high pavement air-void content. The tire/road noise reduction capabilities of the wearing layer vary depending on the aggregate type, gradation, bitumen and air-void content, and density. Consequently, the demand for an accurate tire/road noise prediction model has arisen from the design of asphalt mixtures. This paper deals with how asphalt mixture components of the wearing layer influence tire/pavement noise reduction and presents a model for tire/road noise level prediction based on the asphalt mixture composition. The paper demonstrates that the noise reduction level of low-noise asphalt pavements is dependent on the composition of the asphalt mixture. Asphalt wearing layer mixture composition parameters were tested in the laboratory from cores taken from 18 road sections, where acoustic properties were measured using a close-proximity (CPX) method. The proposed linear model is based on the bitumen amount, the air-void content of the mixture and aggregate shape and involves materials that comply with the general requirements for high-quality asphalt mixtures. The model allows for the prediction of the tire/road noise level at the asphalt mixture design stage using asphalt mixture components and volumetric properties. The proposed model is the first stage in the building of a complex model with a much wider range of low-noise asphalts components, pavement profile depth and CPX-value relationships.

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“…Based on the laboratory research, testing results and estimations that developed low noise asphalt mixtures for regional climate conditions should reduce noise by 2-4 dBA (Vaitkus et al 2014), it was decided to construct test sections and perform further research of low noise pavements. The aim is to increase the level of living quality of population by testing low noise pavements in real traffic and environmental conditions, evaluating noise reduction characteristics dependent on asphalt mixture type and duration and level of exploitation.…”

Section: Test Road Of Low Noise Pavementsmentioning

confidence: 99%

Surface Type and Age Effects on Tyre/Road Noise Levels

Vaitkus

Vorobjovas

Čygas

et al. 2017

Proccedings of 10th International Conference "Environmental Engineering"

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Abstract. Road surface characteristics are the core influencing factors for tyre/road noise generation mechanisms. Depending on the pavement wearing layer mixture composition, type surfaces have different acoustical properties. Acoustical parameters and acoustical behavior change over the time because of the effects of traffic and environmental conditions. Usually low noise pavements can be characterized with very good acoustical parameters but at the same time good acoustical properties deteriorates over the time. Paper presents the research study of surface type and age effects on tyre/road noise levels. Number of different age and different surface type pavements (conventional AC and SMA pavements, low noise SMA TM, TMOA and PA) were evaluated and compared in terms of acoustical performance. Analysis of CPX noise level measurement results are presented in the paper followed with the conclusions and recommendations of low noise pavement application for severe climate regions.

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Peculiarity of low noise pavement design under Lithuanian conditions

Cited by 11 publications

References 9 publications

Towards Sustainable Road Pavements: Sound Absorption in Rubber-Modified Asphalt Mixtures

Towards Sustainable Road Pavements: Sound Absorption in Rubber-Modified Asphalt Mixtures

Asphalt Pavement Acoustic Performance Model

Surface Type and Age Effects on Tyre/Road Noise Levels

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