Experimental Study for Asphalt Laying Using Control of Pavement Compaction Technology on Roads

2017 ◽  
Author(s):  
Lina Bertulienė ◽  
Aurimas Augutis
Keyword(s):  
Asphalt Pavement ◽  
Poor Performance ◽  
Self Control ◽  
Construction Costs ◽  
Road Pavement ◽  
Road Section ◽  
Asphalt Mix ◽  
Compaction Control ◽  
Material Transportation ◽  
Pavement Construction

Hot mix asphalt (HMA) is produced and laid at high temperature and therefore it is subjected to segregation due to differential cooling, which usually occurs during asphalt material transportation and road pavement construction. If mixing temperature is inconstant the degree of compaction may vary, and this will inevitably result in poor performance of the newly laid road pavement. This study describes factors influencing the quality of asphalt pavement construction and analyses results of repair of the selected road section using the solutions of the asphalt mix compaction control technology with the aim to increase the service life of road pavement and to reduce construction costs. Data were obtained by the asphalt pavement compaction control system TOPCON C-63A built in the HAMM company rollers HD- 75 and HD-120 used at the paving site, and by the TROXLER 3451 device used for the self-control density measuring tests. The data obtained enabled to determine the number of rolling passes, temperature differentials of asphalt pavement and pavement compaction.

scholarly journals Porous asphalt pavement for traffic noise reduction and pavement dewatering – the pollution problem

2018 ◽  
Vol 45 ◽  
pp. 00114
Author(s):  
Lesław Bichajło ◽  
Krzysztof Kołodziej
Keyword(s):  
Asphalt Pavement ◽  
Traffic Noise ◽  
Asphalt Mixture ◽  
Porous Asphalt ◽  
The Road ◽  
Road Pavement ◽  
Pollution Problem ◽  
Pavement Construction ◽  
Air Void ◽  
The City

The paper characterizes the porous asphalt mixture used in pavement construction. This kind of pavement can reduce traffic noise and reduce the slipperiness of the road pavement. The effectiveness of the porous asphalt depends on many design and technological aspects, but especially on the air-void clearance in the pavement layer. The paper includes the results of water permeability research based on laboratory tests of specimens from actual road pavement. The research shows the differences between the contamination of the road pavement sections located inside and outside the city. The paper includes recommendations for using porous asphalt based on experiences under Polish conditions.

scholarly journals A Review on Using Crumb Rubber in Reinforcement of Asphalt Pavement

2014 ◽  
Vol 2014 ◽  
pp. 1-21 ◽  
Author(s):  
Nuha Salim Mashaan ◽  
Asim Hassan Ali ◽  
Mohamed Rehan Karim ◽  
Mahrez Abdelaziz
Keyword(s):  
Sustainable Development ◽  
Critical Review ◽  
Hot Mix Asphalt ◽  
Asphalt Pavement ◽  
Crumb Rubber ◽  
Waste Materials ◽  
Road Pavement ◽  
Waste Tyre ◽  
Asphalt Performance ◽  
Pavement Construction

An immense problem affecting environmental pollution is the increase of waste tyre vehicles. In an attempt to decrease the magnitude of this issue, crumb rubber modifier (CRM) obtained from waste tyre rubber has gained interest in asphalt reinforcement. The use of crumb rubber in the reinforcement of asphalt is considered as a smart solution for sustainable development by reusing waste materials, and it is believed that crumb rubber modifier (CRM) could be an alternative polymer material in improving hot mix asphalt performance properties. In this paper, a critical review on the use of crumb rubber in reinforcement of asphalt pavement will be presented and discussed. It will also include a review on the effects of CRM on the stiffness, rutting, and fatigue resistance of road pavement construction.

scholarly journals Feasibility Study on the Use of Cold Premixed Asphalt in Coari - AM

2019 ◽  
Vol 7 (10) ◽  
pp. 473-484
Author(s):  
Gessica De Castro Mendes ◽  
Lucas Barbosa de Castro Delgado ◽  
Igor Bezerra de Lima ◽  
David Barbosa de Alencar
Keyword(s):  
Unit Cost ◽  
Cost Benefit ◽  
Road Transport ◽  
Traffic Demand ◽  
The Road ◽  
Advantages And Disadvantages ◽  
Road Pavement ◽  
Asphalt Mix ◽  
Pavement Construction ◽  
Operational Issues

As road transport is the predominant type of transport for the traffic of people, vehicles and cargo, it is extremely important to ensure the quality of the country's road pavement. Good pavement ensures comfort, safety and economy to road users. There are several types of coatings to be used depending on the project, the traffic demand of the road to be paved and others. Thus, the main objective of this research is to show the feasibility of using cold premixed asphalt in the city of Coari, municipality of the interior of Amazonas. For this, an investigation was conducted in bibliographies, in order to support the study. A budget based on DNIT unit cost compositions was made to compare the costs required to apply this asphalt mix with hot-machined concrete, as this is the most commonly used for pavement construction. Checking the advantages and disadvantages of its use to evaluate its application in the municipality in question. As the cold premix showed to meet most of the requirements for good paving, having a better cost-benefit ratio, it was found that it can be used on low and medium traffic roads, bringing several positive aspects in operational issues. and economical.

scholarly journals An Improved Low-Cost Continuous Compaction Detection Method for the Construction of Asphalt Pavement

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Tong Jia ◽  
Tiejun He ◽  
Zhendong Qian ◽  
Jian Lv ◽  
Kaixin Cao
Keyword(s):  
Detection Method ◽  
Detection System ◽  
Asphalt Pavement ◽  
Low Cost ◽  
Rolling Process ◽  
Continuous Compaction Control ◽  
Positioning Method ◽  
Compaction Control ◽  
Pavement Construction ◽  
Compaction Degree

To realize the continuous compaction control (CCC) of asphalt pavement during construction, continuous detection method was investigated for the compaction degree values. For the trajectory of rollers, a collaborative positioning method was proposed. For the monitoring of rolling process, an embedded-based detection system was designed. For the evaluation of rolling effect, harmonic analysis was introduced and a new index, vibration compaction energy value (VCVe), was proposed. Positioning experiments were conducted, and the accuracy was improved to 0.48 m. Rolling tests were performed, and typical compaction meter values (CMVs), compaction control values (CCVs), and VCVe were obtained. The referenced compaction degree by conventional way was 94.6%, which was used to calibrate the detected values of compaction degree indexes. The results showed that continuous compaction detection can be achieved based on positioning system and vibration analysis. Compared with CMV and CCV, VCVe is less discrete, more stable, and consistent to describe the compaction state. Though, all the CMV, CCV, and VCVe indexes are unable to be used for quality assurance directly or alone, they could be an aid for quality control. Continuous compaction detection system meets the monitoring requirements of pavement construction at a lower cost and could lay a foundation for the intelligent compaction (IC).

Inhibition tasks are not associated with self-regulation outcomes in healthy college students

2019 ◽  
Author(s):  
Curtis David Von Gunten ◽  
Bruce D Bartholow ◽  
Jorge S. Martins
Keyword(s):  
Latent Variable ◽  
Convergent Validity ◽  
Self Regulation ◽  
Poor Performance ◽  
Self Control ◽  
Self Report ◽  
Life Outcomes ◽  
Variable Level ◽  
Cast Doubt ◽  
The Individual

Executive functioning (EF) is defined as a set of top-down processes used in reasoning, forming goals, planning, concentrating, and inhibition. It is widely believed that these processes are critical to self-regulation and, therefore, that performance on behavioral task measures of EF should be associated with individual differences in everyday life outcomes. The purpose of the present study was to test this core assumption, focusing on the EF facet of inhibition. A sample of 463 undergraduates completed five laboratory inhibition tasks, along with three self-report measures of self-control and 28 self-report measures of life outcomes. Results showed that although most of the life outcome measures were associated with self-reported self-control, none of the life outcomes were associated with inhibition task performance at the latent-variable level, and few associations were found at the individual task level. These findings challenge the criterion validity of lab-based inhibition tasks. More generally, when considered alongside the known lack of convergent validity between inhibition tasks and self-report measures of self-control, the findings cast doubt on the task’s construct validity as measures of self-control processes. Potential methodological and theoretical reasons for the poor performance of laboratory-based inhibition tasks are discussed.

Research on New Technology to Control Highway Semi-Rigid Base Asphalt Pavement Cracks

2011 ◽  
Vol 194-196 ◽  
pp. 1632-1638
Author(s):  
Hong Liang Deng ◽  
Xiao Yin Fu ◽  
Wen Xue Gao ◽  
Ting Ting Ni ◽  
Kai Jiang Chen
Keyword(s):  
Composite Materials ◽  
Theoretical Calculations ◽  
Asphalt Pavement ◽  
New Technology ◽  
Service Level ◽  
Self Control ◽  
Good Effect ◽  
Rigid Base ◽  
The Road ◽  
Absorbing Layer

The methods of controlling Highway semi-rigid base asphalt pavement cracks and other diseases are always hot fields of road engineering and academic circles. The existing methods are on some degree efficient on delaying the formation and extension of cracks, but the effect is limited with different methods and various mechanisms of preventing cracks. Base on force analysis of pavement, this article presents a new technology of crack controlling which uses intelligent composite materials interlayer. By adding a stress absorbing layer between the asphalt surface layers or the semi-rigid base layers with low modulus, good toughness, self-adaptability and self-control ability, the intelligent composite materials interlayer has a good effect on controlling cracks which has been proved by the theoretical calculations and experimental analysis. As a result, the intelligent composite materials interlayer could efficiently prevent and delay the formation and extension of cracks, the safety and comfort of highway could be improved significantly while the cost of construction and maintenance decreasing. And the service level and social image of the road could also be improved effectively. This research has important academic and application value.

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