Topology optimization as a tool for road pavement structure analysis

2016 ◽  
pp. 321-325
Author(s):  
R Kutyłowski ◽  
M Szwechłowicz
Keyword(s):  
Topology Optimization ◽  
Structure Analysis ◽  
Road Pavement ◽  
Pavement Structure

scholarly journals Analysis of the Correlation between the Static and Fatigue Test Results of the Interlayer Bondings of Asphalt Layers

2016 ◽  
Vol 62 (1) ◽  
pp. 83-98 ◽  
Author(s):  
A. Szydło ◽  
K. Malicki
Keyword(s):  
Fatigue Life ◽  
Fatigue Test ◽  
Asphalt Mixture ◽  
Fatigue Tests ◽  
Test Results ◽  
Static Tests ◽  
Bonding State ◽  
Road Pavement ◽  
The Future ◽  
Pavement Structure

Abstract The bonding state of the asphalt layers in a road pavement structure significantly affects its fatigue life. These bondings, therefore, require detailed tests and optimization. In this paper, the analyses of the correlation between the results of laboratory static tests and the results of fatigue tests of asphalt mixture interlayer bondings were performed. The existence of the relationships between selected parameters was confirmed. In the future, the results of these analyses may allow for assessment of interlayer bondings’ fatigue life based on the results of quick and relatively easy static tests.

scholarly journals Evaluation of possibilities for the climatic distribution of regions from the point of view of road construction

2015 ◽  
Vol 10 (3) ◽  
pp. 262-268 ◽  
Author(s):  
Lina Juknevičiūtė-Žilinskienė ◽  
Alfredas Laurinavičius
Keyword(s):  
Information System ◽  
Information Systems ◽  
Road Traffic ◽  
Road Construction ◽  
Weather Conditions ◽  
Frozen Ground ◽  
Weather Information ◽  
Road Pavement ◽  
The World ◽  
Pavement Structure

Seeking to reduce a negative impact of unfavourable weather conditions on road traffic, many countries introduce modern technologies allowing to objectively assessing meteorological conditions of roads. The world over, data from the automated meteorological stations of Road Weather Information System have been long ago used on a significantly larger scale than only for the organization of road maintenance works. International experience of introducing Road Traffic Information Systems in European Union and other countries of the world shows that Road Weather Information Systems give good results for increasing road safety, improving the level of road user information and solving the road construction issues. Road Weather Information System is a system of technologies and decision-making using historical and real-time data of roads and weather conditions. The collected and processed multi-year data from meteorological stations is a great assistance in designing or reconstructing road pavement structures. Road pavement structure is highly affected by a negative air temperature and frozen ground. The impact of negative temperature is expressed by the thickness of frost blanket course. The thickness of frost blanket course depends on a frost susceptibility of soil. To determine the thickness of frost blanket course it is necessary to assess the frost impact, therefore it was up to the purpose − climatic distribution of regions the territory of Lithuania according to the distribution of frost impact and the depth of frozen ground. Based on climatic maps compiled, a correction of the thickness of road pavement structure was suggested.

Laboratory Evaluation of Geogrid Confinement to Improve Road Pavement Structure

2019 ◽  
Vol 34 (0) ◽  
pp. 75-80
Author(s):  
Ahmad Waheed SAHIL ◽  
Jiro KUWANO ◽  
Kamal Prasad REGMI ◽  
Taiki YAMATO
Keyword(s):  
Laboratory Evaluation ◽  
Road Pavement ◽  
Pavement Structure

Applied Non-Destructive Tests to Synthetically Investigate the Bearing Capacity Loss of Pavement

2013 ◽  
Vol 723 ◽  
pp. 27-34
Author(s):  
Han Yi Wang ◽  
Hung Wei Wu ◽  
Ruei Hung Shiu ◽  
Jyh Dong Lin
Keyword(s):  
Material Testing ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Renewable Materials ◽  
Standard Material ◽  
The Road ◽  
Road Pavement ◽  
Pavement Structure ◽  
Non Destructive

This study was set out to analyze and investigate the damaged surface course of a newly-constructed road pavement within the two years after its completion. Because the idea of sustainable public infrastructure in Taiwan has recently encouraged the use of renewable materials in the design phase, parts of this roads pavement structure is composed of recycled asphalt concrete, renewable agents, disposed construction surplus and the like. Considering the complex relationship between the damaged condition of the road pavement and factors such as its load repetitions, its design, its construction process and management, and road management, this study employed an intelligent vehicle for pavement survey, Benkelman Beam method, GeoGauge, and Ground Penetrating Radar to examine the roads pavement structure. After cross-analyzing the results from the non-destructive testing, certain parts of the road and the possibly-damaged structure of the pavement were sampled for material testing. The results from the material testing indicated that the related mechanical parameters of the road sections sampled by the non-destructive testing were significantly lower than the normal standards. Moreover, the results from the GPR analysis revealed that the water content of the subgrade of the severely-damaged road sections was high. The low loading capacity of the pavement structure was mainly due to the high groundwater water level in the surrounding area and the penetration of the rain into the cracks of the surface course. This study proposes that nondestructive testing can facilitate sampling sections for material testing to better ensure the quality of the construction although random sampling is commonly seen in the standard material testing for acceptance of completed work. In addition, the study suggests that non-destructive testing can be one requirement for the acceptance of completed work in pavement projects with renewable materials to better evaluate the quality of the pavement after its construction.

A method to select a road pavement structure with life cycle assessment

2020 ◽  
Vol 271 ◽  
pp. 122210
Author(s):  
Filipe Nascimento ◽  
Bruno Gouveia ◽  
Felipe Dias ◽  
Filipe Ribeiro ◽  
Marcelino Aurélio Silva
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Road Pavement ◽  
Pavement Structure

scholarly journals Optimal selection of soils and aggregates mixtures for a frost blanket course of road pavement structure

2012 ◽  
Vol 7 (2) ◽  
pp. 154-159 ◽  
Author(s):  
Audrius Vaitkus ◽  
Viktoras Vorobjovas ◽  
Laura Žiliūtė ◽  
Rita Kleizienė ◽  
Tomas Ratkevičius
Keyword(s):  
Optimal Selection ◽  
Road Pavement ◽  
Pavement Structure ◽  
Selection Of

scholarly journals ANALISIS PERKERASAN LENTUR DI ATAS TANAH EKSPANSIF

2019 ◽  
Vol 2 (1) ◽  
pp. 48-57
Author(s):  
Mukhlis Mukhlis ◽  
Yuhanis Yunus ◽  
Sofyan M. Saleh
Keyword(s):  
Expansive Soil ◽  
Flexible Pavement ◽  
Allowable Limit ◽  
The Road ◽  
Road Pavement ◽  
Swell Potential ◽  
Pavement Structure ◽  
Pavement Structures ◽  
On The Road ◽  
Base Soil

The segmented road of Bireuen-Takengon has often damaged in apart of its pavement structure due to the area of flexible pavement structure taken place upon an expansive soil that leads to depreciation caused by the influence of changes in the water level. The aim of this research method was to analyze the characteristics of the base soil underlying the pavement and to analyze the flexible pavement structure in the widening of the road. The observed area was Sta.70+175 s/d Sta.74+925 which taken place in Bener Meriah regency, sub-district of Timang Gajah. The results of USCS clarification show that the road of basal soil is included in the MH OH with a PI value of 25.42%, LL 64.25% with a potential level of development and activity belonging to the medium-high category and also having mineral types of Illite. From the analysis of KENPAVE software, the design of flexible pavement structures is based on data planning that has a maximum stress and deflection value, on the base soil, of 0.1814 kg/cm2 and 0.0585 cm respectively. Moreover, based on Job mix data the maximum value of stress and deflection is 0.2444 kg/cm2 and 0.0585 cm respectively in which both of two stress and deflections are within the allowable limit; which both of two stress and deflections are within the allowable limit; 7.8 kg/cm2 and 2.5 cm. The evaluation results of both data are feasible to be used as an improved design on the pavement as the pressure generated by the weight of the road pavement structure is 1.949 kg/cm2, while the swell pressure that occurs on subgrade is 1.805 kg/cm2. Hence, The flexible pavement structure on the road segment is still able to reduce the swell potential on expansive soil.

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