scholarly journals A Review on Acoustic and Skid Resistance Solutions for Road Pavements

2021 ◽  
Vol 6 (3) ◽  
pp. 41 ◽  
Author(s):  
Sergio Copetti Callai ◽  
Cesare Sangiorgi
Keyword(s):  
Surface Layer ◽  
Traffic Accidents ◽  
Asphalt Mixtures ◽  
Skid Resistance ◽  
Noise Generation ◽  
Road Noise ◽  
Pavement Surface ◽  
Acoustic Impact ◽  
Resistance Performance

As cities grow in size, traffic also increases, thus making the population more exposed to road noise and traffic accidents. It is therefore important to study and understand which properties of the pavement influence its acoustic impact and skid resistance performance. The pavement texture plays a major role in generating noise and friction, and it can be engineered in order to control both of them at the same time. The phenomena regulating skid resistance are well understood today. The same applies for noise generation and propagation; the literature contains methods of designing the pavement surface layer to achieve consistent results. Several types of solutions can be found for asphalt mixtures, most of them derived from decades of studies and research. They use different approaches to be effective for noise and friction, but all have in common the control of the surface’s macro and microtexture. Finally, some considerations are made regarding novel paving solutions with artificial aggregates instead of natural ones to address noise and skid resistance.

High-Speed Noncontact Profiling of Pavement Surface Texture and Its Significance

1986 ◽  
Vol 108 (3) ◽  
pp. 455-461
Author(s):  
J. C. Wambold ◽  
J. J. Henry
Keyword(s):  
Surface Texture ◽  
High Speed ◽  
Large Scale ◽  
Vision System ◽  
Small Scale ◽  
Skid Resistance ◽  
Texture Measurement ◽  
Pavement Surface ◽  
Texture Characteristics ◽  
Regression Techniques

It is generally agreed that the friction between a tire and a wet pavement (skid resistance) is controlled by the surface texture characteristics. Therefore, by measuring the relevant parameters describing texture, or by measuring a physical process dependent on texture, regression techniques can be used to relate skid resistance to the chosen texture parameter or process. Two scales of texture are of particular importance: microtexture (small-scale asperities) and macrotexture (large-scale asperities). This paper describes work performed to: (1) review candidate macrotexture and microtexture measurement methods that can be made at highway speeds (at or about 64 km/h [40 mph]), which are presently used or have potential for use in pavement texture measurement; (2) design and build a prototype of the most promising method; and (3) evaluate the effects of pavement surface texture on skid resistance. A prototype noncontact vision system that makes texture measurements at highway speeds was developed, and several improvements were made to upgrade the system to provide an improved prototype. Both hardware and software enhancements have yielded a texture measurement system that can obtain pavement macrotexture data in a fast, efficient, and reliable way.

scholarly journals Comparison of pavement surface roughness characteristics of different wearing courses evaluated using 3D scanning and pendulum

2020 ◽  
Vol 313 ◽  
pp. 00013
Author(s):  
Matej Brna ◽  
Michal Cingel
Keyword(s):  
Asphalt Concrete ◽  
Point Of View ◽  
Skid Resistance ◽  
Concrete Pavements ◽  
Cement Concrete ◽  
Physical Point ◽  
Pavement Surface ◽  
Road Pavement ◽  
Pavement Roughness ◽  
Surface Irregularities

Road pavement roughness, in terms of skid resistance, can be described from a geometrical point of view as a texture or from a physical point of view as friction between a tire and a road surface. The paper deals with the comparison of asphalt and concrete pavement surface on selected newly built sections of the D1 motorway near the Ovčiarsko tunnel. Texture measurements were performed with a Static Road Scanner (SRS) capable of recording surface irregularities up to the microtexture level (2.49 µm resolution). A pendulum was used to determine the friction. Subsequently, the texture was evaluated using individual amplitude and wavelength characteristics and the friction was evaluated using the PTV parameter. Finally, correlations were searched between the roughness characteristics of asphalt concrete and cement concrete pavements, but also between texture and friction characteristics.

Safe and Eco-Friendly Haze-Eliminating Pavement Coating

2014 ◽  
Vol 1052 ◽  
pp. 387-391
Author(s):  
Jiu Peng Zhang ◽  
Yun Hang Wang ◽  
Na Li ◽  
Zhi Jun Duan ◽  
Lei He ◽  
...  
Keyword(s):  
Water Resistance ◽  
Chemical Properties ◽  
Catalytic Degradation ◽  
Skid Resistance ◽  
Physical And Chemical Properties ◽  
Obvious Effect ◽  
Optimum Dosage ◽  
Physical And Chemical ◽  
Resistance Performance ◽  
And Chemical Properties

The main purpose of the pavement coating is to reduce the haze by absorbing and degrading pm2.5 from automobile exhaust. Based on the investigation and analysis of the source and main composition of haze and pm2.5 and the physical and chemical properties of haze, the paper proposes the method of combining the absorption and catalytic degradation of active Al2O3 and nanometer TiO2 together. Through the experiments, the pavement coating which has the different ratio of active Al2O3 and nanometer TiO2 behaves differently on the effect of absorption and degradation of pm2.5, and the optimum dosage and ratio of active Al2O3 and nanometer TiO2 was found finally. The pavement coating which use the optimum dosage has the more obvious effect under the ultraviolet. And the water resistance and skid resistance performance can also meet the requirements.

Fatigue Experiments of Simulating Propagating Process of Reflective Cracking in Asphalt Concrete Overlays

2012 ◽  
Vol 193-194 ◽  
pp. 1454-1460
Author(s):  
Ying Mei Yin
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Asphalt Mixture ◽  
Propagation Speed ◽  
Asphalt Mixtures ◽  
Rigid Base ◽  
Reflective Cracking ◽  
Analysis Model ◽  
Element Analysis ◽  
Resistance Performance

In order to simulate reflective cracking of asphalt overlays or semi-rigid asphalt pavements in lab and evaluate the reflective crack resistance performance of with and without interlayer, a finite element analysis model based on the asphalt pavement, of which the semi-rigid base has cracked, is conducted and established through some basic assumptions in this paper. According to the results of pavement mechanical analysis and some literatures review, a laboratory reflective cracking simulation model was designed to compare the resistances of reflective cracking of different mixture samples. In order to compare the reflective cracking of different test samples, a dense grade asphalt mixture AC-20I with and without interlayer were used in the test. The results shows that asphalt mixture beams containing geotechnical fabrics can effectively delay the appearance of the reflective cracking at the bottom of the asphalt mixture beam and evidently reduce the propagation speed of reflective cracking while the beams containing geogrid can also hold back reflective cracking to a certain extent, but not as much as geotechnical fabrics did. It was proved that the model designed through finite element analysis (FEA) can simulate the reflective cracking caused by load and evaluate the reflective cracking resistance performance of different asphalt mixtures well and asphalt mixtures with fabrics can mitigate and delay reflective cracking effectively.

scholarly journals Assessment of Skid Resistance of Asphalt Mixtures in Laboratory Conditions

2012 ◽  
Vol 58 (4) ◽  
pp. 521-534 ◽  
Author(s):  
W. Gardziejczyk ◽  
M. Wasilewska
Keyword(s):  
Asphalt Concrete ◽  
Laboratory Tests ◽  
Asphalt Mixtures ◽  
Road Surface ◽  
Skid Resistance ◽  
Mastic Asphalt ◽  
Laboratory Conditions ◽  
University Of Technology ◽  
Road Surfaces ◽  
Stone Mastic Asphalt

AbstractThe aggregate applied for the wearing course has a significant influence on skid resistance of road surfaces. However, it is difficult to evaluate the behaviour of road surface in use on the basis of the Polished Stone Value (PSV) determined for the aggregate according to the so called ‘British method’. The British method, which is currently used in many countries, does not allow to determine the influence of neither the grain size of the aggregate nor the type of the wearing course on skid resistance of road surface. The present paper suggests a method for evaluation of the British Pendulum Number (BPN) for road surfaces in laboratory conditions. The authors assumed the BPN for polished slabs, made from asphalt mixtures, as the criterion. The index was measured with the British Pendulum Tester. The simulation of the process was conducted on research stand (called slab polisher) built at Bialystok University of Technology (BUT). The results of laboratory tests indicate that surfaces from asphalt concrete (AC) have slightly higher values of BPN in comparison with the values determined for surfaces made from stone mastic asphalt (SMA).

scholarly journals Chemical and Physical Properties Of Coconut Fiber In Asphalt Mixture: A Review

2019 ◽  
Vol 3 (1) ◽  
pp. 11-16
Author(s):  
Che Norazman Che Wan ◽  
Keyword(s):  
Physical Properties ◽  
Agricultural Waste ◽  
Natural Fibers ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Asphalt Pavements ◽  
Skid Resistance ◽  
Coconut Fiber ◽  
Modified Bitumen ◽  
Potential Use

This paper is a review of the chemical and physical properties of coconut fiber in asphalt mixtures. Coconut fibers (CF) are natural fibers and also an agricultural waste, which is abundant after the extraction of juice and coconut fruit. Nowadays, CF has been studied for its potential use in the construction field to increase the strength of materials with its high tensile strength. Additionally, CF can also be one the materials in highway construction as it can improve the skid resistance of asphalt pavements. It was shown that CF treated with NaOH lowered the penetration value and increased the softening point of modified bitumen. Flow of bitumen also can be avoided at high mixing and compaction temperatures by adding 0.7% of CF.

scholarly journals Investigation of Impact of Aggregate Coating by Bitumen on Change of Micro Texture Values

1970 ◽  
Vol 3 (1) ◽  
pp. 52-61
Author(s):  
Zuzana Florkova ◽  
Jana Pastorkova ◽  
Matus Farbak ◽  
Zuzana Kolkova ◽  
Peter Hrabovsky
Keyword(s):  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Point Of View ◽  
Skid Resistance ◽  
Analysis Method ◽  
Texture Change ◽  
Bitumen Content ◽  
The Individual ◽  
The Impact

Asphalt pavement micro texture values primarily depend on aggregate properties used in asphalt pavement mixture and by aggregate surfaces is secured the basic contact medium with vehicle tires. It often happens that new asphalt surfaces have not required skid resistance properties and is needed a certain period of time to eliminate film of bitumen binder which is coating the aggregate grain on the surface of pavement by action of vehicles. In most cases, the investigation of the aggregate micro texture impact on the pavement skid resistance properties is carried out under laboratory conditions and generally relates only to measurements on natural aggregate samples (without bitumen). However, due to coating of aggregate by bitumen binder, valleys between the individual peaks of aggregate are filled. Obviously, it can be supposed that the usage of high amount of bitumen content can leads to decreasing of aggregate micro texture values. From this point of view, it can be expected that change in micro texture values depends on the content of binder in the asphalt mixture. Particular aggregate grains were taken from asphalt mixtures samples (AC 8, AC 11 and SMA 11) produced in the laboratory, in order to determine the impact of aggregate coating by bitumen binder on micro texture change. Each usage asphalt mixture was produced with three different bitumen binder contents. Digital image analysis method was used for subsequent evaluation. Changes in the micro texture values depending on the amount of used bitumen binder and also on the calculated theoretical bitumen film thickness are investigated in the conclusion.

Study on Mechanical Behavior of Asphalt Concrete Pavements with Non-Uniformity Gradient Materials

2011 ◽  
Vol 243-249 ◽  
pp. 4334-4338
Author(s):  
Ke Zhen Yan ◽  
Zou Zhang
Keyword(s):  
Surface Layer ◽  
Asphalt Concrete ◽  
Mechanical Characteristics ◽  
Damage Mechanism ◽  
Asphalt Mixtures ◽  
Concrete Pavements ◽  
The Finite Element Method ◽  
Gradient Materials ◽  
Pavement Damage ◽  
Asphalt Concrete Pavement

Generally speaking, the asphalt concrete pavement will be affected by the temperature and aging when it is in the use, which makes the modulus of asphalt mixtures change as non-uniformity gradient. This paper assumes the different changes on the modulus of surface layer with different gradient and then researched the mechanical characteristics of asphalt concrete pavements with cracks and no cracks by the finite-element method . Moreover, the research focused on the stress and K I & K II of the asphalt concrete pavements affected by the modulus of surface layer changed as non-uniformity gradient. The results demonstrated that the larger the gradient on the modulus of the surface layer,the bigger the tensile stress and K I and K II of the asphalt concrete pavements, and K IIis even much bigger than K I. Consequently, it is of great importance to take into account the effect of the modulus of surface layer changed as non-uniformity gradient. It also makes a great significance for the revision of pavement design and the analysis of pavement damage mechanism.

Sign in / Sign up

Export Citation Format

Share Document