Intelligent Compaction: An Improved Quality Monitoring and Control of Asphalt Pavement Construction Technology

2021 ◽  
pp. 1-8
Author(s):  
Yuan Ma ◽  
Feng Chen ◽  
Tao Ma ◽  
Xiaoming Huang ◽  
Yang Zhang
Keyword(s):  
Asphalt Pavement ◽  
Quality Monitoring ◽  
Construction Technology ◽  
Monitoring And Control ◽  
Intelligent Compaction ◽  
Pavement Construction ◽  
And Control

The Study of Quality Monitoring and Control for Laser Cutting Based on Pulse-Induced Acoustic Sound

2012 ◽  
Vol 182-183 ◽  
pp. 422-426 ◽  
Author(s):  
Hui Juan Hao ◽  
Guang He Cheng ◽  
Ji Yong Xu
Keyword(s):  
Adaptive Control ◽  
Laser Cutting ◽  
Cutting Speed ◽  
Processing Parameters ◽  
Wavelet Denoising ◽  
Quality Monitoring ◽  
Monitoring And Control ◽  
Time Frequency ◽  
And Control ◽  
The Impact

In this paper, the pulse-induced acoustic sound in laser cutting is collected, and the data processing is performed with wavelet denoising and time-frequncy analyzing. The impact of laser processing parameters on the acoustic signal is discussed; and further analysis of the effect of cutting speed is conducted. The corresponding relationship between the best velocity and the maximum time-frequency energy density is got; also the plan of adaptive control in laser cutting is designed. The results in this paper can provide important parameters for adaptive control of laser cutting.

Emission Characteristics of VOCs during Asphalt Pavement Construction

2021 ◽  
Vol 1035 ◽  
pp. 999-1005
Author(s):  
Yin Huai Ma ◽  
Li Guo ◽  
Shao Peng Wu ◽  
Na Li ◽  
Jun Xie
Keyword(s):  
Asphalt Pavement ◽  
Asphalt Binder ◽  
Critical Factor ◽  
Rolling Process ◽  
Field Investigation ◽  
Construction Technology ◽  
Pavement Temperature ◽  
Pavement Construction ◽  
Complex Organic ◽  
Vocs Emission

As the important part of expressway, the construction technology of asphalt pavement will contribute to the production of greenhouse gases and other volatile organic compounds (VOCs), which has a significant impact on the environment. In order to further analyze the composition, distribution and release of VOCs during asphalt pavement construction, the VOCs emission during paving and rolling were measured through field investigation and sampling. The results show that there are approximately 100 kinds of VOCs substances detected due to the complex organic component of asphalt binder, which is a critical factor to influence the VOCs emission during asphalt pavement construction. During the paving process, the largest VOCs release is 1015.05 ug/m3. With the increase of rolling times, the pavement temperature gradually decrease, and the VOCs emission drops to 266.73 ug/m3. The content of the 10 kinds of substances with the highest concentration accounts for more than 50% of the total VOCs content, in which the proportion of aliphatic hydrocarbons (ALH) and oxygenated hydrocarbon (O-HYD) of the paving process are the highest, while the proportion of aromatic hydrocarbons (ARH) is dominated in the rolling process. The results are vulnerable to the external environment, especially at lower emission level. The relevant research results have certain guiding significance for the control and treatment of harmful gas emission in the construction process of asphalt pavement.

scholarly journals Legal and formal analysis of chosen provisions of Directive 2009/30/EC and of the Act of 25 August 2006 on the fuel quality monitoring and control system

2019 ◽  
Vol 29 ◽  
pp. 171-181
Author(s):  
Weronika Gadzicka
Keyword(s):  
Control System ◽  
Formal Analysis ◽  
Quality Monitoring ◽  
Fuel Quality ◽  
Monitoring And Control ◽  
Monitoring And Control System ◽  
The Subject ◽  
Business Entities ◽  
Economic Analyses ◽  
And Control

The Directive 2009/30/EC and the Polish Act on the fuel quality monitoring and control system imposes a duty on the entities fulfilling the National Reduction Target NRT to reduce the emission of greenhouse gases to 6%. The reduction target of at least 6% can not be spread over the entire fuel market. It applies to every entity implementing the NRT separately. Member States, as well as the fuel market, are not responsible for not achieving the reduction target. This responsibility is limited to individual business entities implementing the NRT and concerns the fulfillment of the reduction target and the providing of the report on the implementation of the reduction target. It is necessary to carry out technical and economic analyses, the subject of which should be to answer the question of whether the entities realising the NRT are able to predict the potential amount of the fine that may be imposed on them based on art. 35c section 3 of the Act. Analiza prawna i formalna wybranych przepisów dyrektywy 2009/30/WE i ustawy z dnia 25 sierpnia 2006 roku o systemie monitorowania i kontroli jakości paliwDyrektywa 2009/30/WE oraz ustawa o systemie monitorowania i kontroli jakości paliw nakładają na podmioty spełniające Narodowy Cel Redukcyjny obowiązek obniżenia emisji gazów cieplarnianych do 6%. Cel redukcji wynoszący co najmniej 6% nie może być rozłożony na cały rynek paliw — dotyczy to każdego podmiotu wdrażającego NCR oddzielnie. Państwa członkowskie, jak też rynek paliw, nie ponoszą odpowiedzialności w wypadku nieosiągnięcia tegoż celu redukcyjnego. Odpowiedzialność ta jest ograniczona do poszczególnych podmiotów gospodarczych realizujących NCR i dotyczy realizacji celu redukcyjnego oraz dostarczenia sprawozdania z realizacji NCR. Konieczne jest przeprowadzenie analiz technicznych i ekonomicznych, których przedmiotem powinno być udzielenie odpowiedzi na pytanie, czy podmioty realizujące NRT są w stanie przewidzieć potencjalną kwotę grzywny, jaka może zostać na nie nałożona na podstawie art. 35c ust. 3 ustawy.

scholarly journals A Review - Water Quality Monitoring System

2019 ◽  
Author(s):  
R. J. Sapkal ◽  
Pooja Wattamwar ◽  
Rani Waghmode ◽  
Umrunnisa Tamboli
Keyword(s):  
Water Quality ◽  
Water Level ◽  
Water System ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Network Coverage ◽  
Monitoring And Control ◽  
Water Sensor ◽  
And Control ◽  
System Prototype

This paper describes the main reason for need of effective and efficient water level monitoring and control of water quality in flat system tends to keeping the human resources healthy and sustainable, and to reduce the usage of water for household purposes. Due to climate changes and variability so many huge impacts are caused by the water system to the natural environment. Incredible methods are used by collecting water samples, testing and analyses in water laboratories alone. However, It is not always easy to be captured, analyses and fast dissemination of information to relevant users for making timely and well-versed decisions. In this project Water Sensor System prototype is developed for water level and quality monitoring in society is presented. These kind of growth was introduced by the assessment of widespread atmosphere that Including accessibility of cellular network Coverage at the site of process.

Feasibility of Crumb Rubber Use for Asphalt Pavement Construction

1996 ◽  
Vol 1530 (1) ◽  
pp. 64-71
Author(s):  
Raghu Ram Madapati ◽  
K. Wayne Lee ◽  
Francis J. Manning ◽  
Colin A. Franco
Keyword(s):  
Rhode Island ◽  
Asphalt Pavement ◽  
Crumb Rubber ◽  
Binder Content ◽  
Mix Design ◽  
Dry Process ◽  
Wet Process ◽  
Level I ◽  
Pavement Construction ◽  
And Control

There are two processes of adding crumb rubber modifier (CRM) to hot mix asphalt (HMA), that is, the wet process and the dry process; and different technologies are available for each process. On the basis of the results of the binder study and producer's practices, HMA specimens were prepared using two selected AR binders with Producer R and A CRMs for Rhode Island (RI) dense-graded and dense-graded friction course (DGFC) mixtures, respectively. Aggregates procured from four local asphalt contractors were used. In addition, gap-graded HMA specimens were prepared with 3 percent CRM and control AC-20 binder with two typical local aggregates using the dry process. Marshall mix design was performed on all mixtures to determine optimum binder content and Marshall properties. Mechanical properties were evaluated for the mixtures with and without CRM. Superpave Level I mix design was also performed for dense-graded, DGFC, and gap-graded mixtures with aggregates procured from Contractor C. Finally, the performance of pavements with and without CRM was predicted using the computer program VESYS. Results of this study indicated that the use of CRM is feasible for RI dense-graded and DGFC mixtures utilizing the wet process.

Quality Monitoring and Control of the Publicity Translation System Based on Cognitive Mechanism

2014 ◽  
Vol 1006-1007 ◽  
pp. 390-393
Author(s):  
Ke Chen ◽  
Fang Lei Li
Keyword(s):  
Evaluation System ◽  
Process Model ◽  
Quality Monitoring ◽  
Translation System ◽  
Generation Process ◽  
Monitoring And Control ◽  
Innovative Design ◽  
Creative Solutions ◽  
Design Generation ◽  
And Control

Based on innovative design generation process model and innovative mechanism, this paper designs an evaluation system of the existing publicity translation frame so as to create an appropriate innovative design to implement quality monitoring and control into practice; at the same time, guided by the innovation design cognitive experiment, it also illustrates the formation of quality monitoring and control on publicity translation system. The cognitive motivation of innovation and strategy selection are discussed, and subsequently Xi'an urban publicity translation system innovation design is used as an example to confirm the presentation and the feasibility of the generated creative solutions.

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