Definition of Concrete and Composite Precast Concrete Pavements Texture

Abstract

In the context of increasing traffic demands and emerging mobility trends road infrastructure has to shift towards the fifth generation of roads, which according to Forever Open Road (FOR) vision are envisioned as adaptable to traffic volumes, resilient to changing weather conditions, quickly built, effectively maintained, suitable for retrofitting, self-monitoring, self-repairing and recyclable. Concrete modular pavements can be defined as an example of such type of road infrastructure. Functional needs are mainly associated with implementation area/location, traffic and mobility demands, environmental constraints and etc. This also has a significant impact on the selection of Precast Concrete Pavements (PCP) texture formation method and materials. Concrete pavement surface texture affects both safety and tyre/road noise characteristics. Exposed Aggregate Concrete (EAC) and porous concrete are the most suitable noise reducing solutions for highways and streets wearing layer even in severe traffic and climate conditions. According to the literature analysis, the algorithm of highways and streets low noise concrete design was created. It is recommended to use the highest quality aggregates with maximum size up to 8 mm, gap-graded gradation, higher amount of cement and lower water/cement ratio. The most important characteristics of EAC are Mean Profile Depth (MPD), Mean Texture Depth (MTD) and profile count, while the most important characteristics of porous concrete are compressive strength, outflow and air void content.

Methodology for the Composite Tire Numerical Simulation Based on the Frequency Response Analysis

“…According to [35], approximately a half of traffic accidents on highways is related to tire problems many of which are provoked by blowout tires. Furthermore, since vehicle tires are the only contact point between a vehicle and road surface (contact patch problem) [14,15,29,32], the tire condition has a crucial impact on a dynamic stability and safety of car movement, especially during winter and autumn season. Yet the investigation of accidents that are caused by tire-road interaction and depend on weather conditions or are caused by tire blowout are rather complicated [8,27].…”

Microsurfacing Pavement Solutions with Alternative Aggregates and Binders: A Full Surface Texture Characterization

“…Regarding the aggregate indicators, the ones most used to describe the pavement texture are the mean profile depth (MPD) and the estimated texture depth (ETD) [9,22,59,60]. MPD and ETD are parameters created to assess the pavement macrotexture, and they are based on the traditional sand patch method.…”

Possible Ways of Evaluation of Industrially Manufactured Means for Low-Bearing Terrain Strengthening Usable in Military Operations

“…Specific availability (refinery) represents the next disadvantage of such materials. The disadvantage of concrete surfaces is the difficulty in adhering to technological procedures during construction and compliance with its quality [39], [41]. Aluminum-based materials´ disadvantage is primarily acquisition price and requirements for special laying equipment [42], [43].…”