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Relevant bibliographies by topics / Road Paving Workers

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Academic literature on the topic 'Road Paving Workers'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

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Journal articles on the topic "Road Paving Workers"

1

Noroozi, Mahdieh, Maryam Akhgari, and Alireza Abdollahi. "Occupational Exposure to Paving Asphalt Fumes, Impact on Liver and Kidney Function Test Parameters." International Journal of Medical Toxicology and Forensic Medicine 11, no. 1 (February 21, 2021): 29730.1–29730.7. http://dx.doi.org/10.32598/ijmtfm.v11i1.29730.

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Background: Asphalt is a mixture of aliphatic and aromatic hydrocarbons. It also contains different kinds of heavy metals. Hot mix asphalt emits hazardous volatile substances. Asphalt is used in many industries, causing serious adverse health effects for workers. Therefore, investigation of the health status of workers is of crucial importance. The present study aimed to assess the impact of asphalt vapor on hepatic and renal function tests parameters and the clinical parameters in road paving workers compared to healthy subjects. Methods: In a cross-sectional study, 41 road asphalt paving workers and 120 healthy non-exposed subjects were selected. The serum enzymes of aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), total bilirubin, triglyceride, urea, and creatinine levels were assessed using diagnostic kits. A medical practitioner examined all subjects for any possible medical condition. Results: Liver and kidney function test parameters were significantly higher in road asphalt paving workers compared to their healthy counterparts (P<0.05 for all parameters). About 63% of workers exposed to asphalt fumes for more than 10 years showed cardiac, pulmonary, and metabolic complications. Conclusion: Significant elevations in liver and kidney function test parameters suggest that exposure to asphalt fumes is associated with hepatic and renal dysfunction in asphalt-exposed workers.

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Xu, Yiyi, Monica Kåredal, Jörn Nielsen, Mariana Adlercreutz, Ulf Bergendorf, Bo Strandberg, Ann-Beth Antonsson, Håkan Tinnerberg, and Maria Albin. "Exposure, respiratory symptoms, lung function and inflammation response of road-paving asphalt workers." Occupational and Environmental Medicine 75, no. 7 (May 30, 2018): 494–500. http://dx.doi.org/10.1136/oemed-2017-104983.

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BackgroundControversy exists as to the health effects of exposure to asphalt and crumb rubber modified (CRM) asphalt, which contains recycled rubber tyres.ObjectiveTo assess exposures and effects on airway symptoms, lung function and inflammation biomarkers in conventional and CRM asphalt road pavers.Methods116 conventional asphalt workers, 51 CRM asphalt workers and 100 controls were investigated. A repeated-measures analysis included 31 workers paving with both types of asphalt. Exposure to dust, nitrosamines, benzothiazole and polycyclic aromatic hydrocarbon (PAH) was measured in worksites. Self-reported symptoms, spirometry test and blood sampling were conducted prework and postwork. Symptoms were further collected during off-season for asphalt paving.ResultsDust, PAHs and nitrosamine exposure was highly varied, without difference between conventional and CRM asphalt workers. Benzothiazole was higher in CRM asphalt workers (p<0.001). Higher proportions of asphalt workers than controls reported eye symptoms with onset in the current job. Decreased lung function from preworking to postworking was found in CRM asphalt workers and controls. Preworking interleukin-8 was higher in CRM asphalt workers than in the controls, followed by a decrement after 4 days of working. No differences in any studied effects were found between conventional and CRM asphalt paving.ConclusionCRM asphalt workers are exposed to higher benzothiazole. Further studies are needed to identify the source of nitrosamines in conventional asphalt. Mild decrease in lung function in CRM asphalt workers and work-related eye symptoms in both asphalt workers were observed. However, our study did not find strong evidence for severe respiratory symptoms and inflammation response among asphalt workers.

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Kauppinen, Timo, Pirjo Heikkilä, Timo Partanen, Simo V. Virtanen, Eero Pukkala, Pekka Ylöstalo, Igor Burstyn, Gilles Ferro, and Paolo Boffetta. "Mortality and cancer incidence of workers in Finnish road paving companies." American Journal of Industrial Medicine 43, no. 1 (December 19, 2002): 49–57. http://dx.doi.org/10.1002/ajim.10161.

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Boularas, E., H. Rezk-Kallah, and B. Rezk-Kallah. "Occupational exposure to polycyclic aromatic hydrocarbons (PHAs) among asphalt and road paving workers." Toxicology Letters 205 (August 2011): S72. http://dx.doi.org/10.1016/j.toxlet.2011.05.273.

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Bal, Ceylan, Erol R. Ağış, Murat Büyükşekerci, Meşide Gündüzöz, Lütfiye Tutkun, and Ömer H. Yılmaz. "Occupational exposure to asphalt fume can cause oxidative DNA damage among road paving workers." American Journal of Industrial Medicine 61, no. 6 (March 7, 2018): 471–76. http://dx.doi.org/10.1002/ajim.22830.

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Berthiaume, R., and C. Bouchard. "EXERGY ANALYSIS OF THE ENVIRONMENTAL IMPACT OF PAVING MATERIAL MANUFACTURE." Transactions of the Canadian Society for Mechanical Engineering 23, no. 1B (May 1999): 187–96. http://dx.doi.org/10.1139/tcsme-1999-0013.

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Exergy analysis permits accurate measurement of the degradation of matter and energy using a single concept. A macroscopic exergy accounting method is proposed and applied to assess the environmental impact of road covering material manufacturing. Cement concrete and asphalt covers are examined. From the manufacturing process mass balances and exergy analyses conducted primarily by Szargut and his co-workers, the net exergy consumption for each type of paving material is calculated. This exergy consumption broadly reflects the minimum work required to reform the raw materials and restore the environment to its initial state. This minimum work may serve as a thermodynamic measure of the environmental impact of an entire manufacturing process, from the resource drawn from the environment to the finished product. In the two cases under study, the environmental impact depends on the type, thickness and manufacturing process of the paving material. An older technology, such as the manufacture of cement concrete using the wet process, appears disadvantageous, as is the production of asphalt cover which is manufactured during the fall. The proposed exergy indicator permits ranking of the materials according to their overall long-term impact on the environment.

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Eshak, Ghada, Morid Hanna, Manal Ahmed, and Ghada Nassef. "Polycyclic Aromatic Hydrocarbons: Role of Apoptosis in Dermatotoxic and Carcinogenic Effects in Some Asphalt Road Paving Egyptian Workers." Ain Shams Journal of Forensic Medicine and Clinical Toxicology 19, no. 2 (June 1, 2012): 135–44. http://dx.doi.org/10.21608/ajfm.2012.19547.

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Espinoza, Javier, Cristian Medina, Alejandra Calabi-Floody, Elsa Sánchez-Alonso, Gonzalo Valdés, and Andrés Quiroz. "Evaluation of Reductions in Fume Emissions (VOCs and SVOCs) from Warm Mix Asphalt Incorporating Natural Zeolite and Reclaimed Asphalt Pavement for Sustainable Pavements." Sustainability 12, no. 22 (November 17, 2020): 9546. http://dx.doi.org/10.3390/su12229546.

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Conventional asphalt mixtures used for road paving require high manufacturing temperatures and therefore high energy expenditure, which has a negative environmental impact and creates risk in the workplace owing to high emissions of pollutants, greenhouse gases, and toxic fumes. Reducing energy consumption and emissions is a continuous challenge for the asphalt industry. Previous studies have focused on the reduction of emissions without characterizing their composition, and detailed characterization of volatile organic compounds (VOCs) and semi-volatile organic compounds (SVOCs) in asphalt fumes is scarce. This communication describes the characterization and evaluation of VOCs and SVOCs from asphalt mixtures prepared at lower production temperatures using natural zeolite; in some cases, reclaimed asphalt pavement (RAP) was used. Fumes were extracted from different asphalt mix preparations using a gas syringe and then injected into hermetic gas sample bags. The compounds present in the fumes were sampled with a fiber and analyzed by gas-liquid chromatography coupled to mass spectrometry (GC/MS). In general, the preparation of warm mix asphalts (WMA) using RAP and natural zeolite as aggregates showed beneficial effects, reducing VOCs and SVOCs compared to hot mix asphalts (HMA). The fumes captured presented a similar composition to those from HMA, consisting principally of saturated and unsaturated aliphatic hydrocarbons and aromatic compounds but with few halogenated compounds and no polycyclic aromatic hydrocarbons. Thus, the paving mixtures described here are a friendlier alternative for the environment and for the health of road workers, in addition to permitting the re-use of RAP.

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Gribulis, Gediminas, Donatas Čygas, and Audrius Vaitkus. "IMPACT OF MODIFICATED ASPHALT MIXTURES ON PAVING FUNCTIONING AND ENVIRONMENT / MODIFIKUOTŲ ASFALTBETONIO MIŠINIŲ POVEIKIS DANGOS FUKNCIONAVIMUI IR APLINKAI." Mokslas – Lietuvos ateitis 8, no. 4 (October 24, 2016): 418–24. http://dx.doi.org/10.3846/mla.2016.950.

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Atmospheric pollution began to increase in the beginning of 19th century, when the global economy and industrial development started the signal grow. The current problem of global warming is partly related with emission of carbon dioxide (CO2) to environment, which one of the sources are industrial production companies. Warm asphalt mix is usually used in the practice of Lithuania and the world for equipment of road paving. These mixes are produced in specialized asphalt mixers where stone dosing, drying and its mixing with bituminous binders are performed. The temperature of produced hot asphalt mix in mixer reach 150–180 °C and 120–160 °C of mixture laying on the road. Various pollutants, carbon dioxide, formaldehydes, and other are spread to the environment. The carried out researches in Lithuania and the world have showed that while using special additives it is possible to reduce the temperatures of warm asphalt production and laying on the road. Such reduction of temperature helps not to worsen the quality of asphalt layer, to lower the emission of pollutants to environment, to improve the conditions of road workers and to economically use the gas for production of asphalt mixes. Production technologies of different asphalt mixes, their advantages and disadvantages, and results of laboratory tests are analyzed in this article. Equipment samples of experimental road sections, using the warm mixing asphalt mixtures are given. 19 amžiaus pradžioje, ėmus sparčiai augti pasaulinei ekonomikai ir vystytis pramonei, pradėjo didėti ir atmosferos užterštumas. Dabartinė globalinė pasaulinio atšilimo problema iš dalies siejama su anglies dioksido (CO2) išmetimu į aplinką, kurio vienas iš šaltinių yra pramoninės gamybos įmonės. Automobilių kelių dangoms įrengti Lietuvos ir pasaulinėje praktikoje dažniausiai naudojami karšto asfalto mišiniai. Šie mišiniai yra gaminami specialiuose asfalto maišytuvuose, kuriuose akmens medžiagos dozuojamos, džiovinamos, maišomos su bituminiais rišikliais. Gaminamo karšto asfalto mišinio temperatūra maišytuve siekia 150–180 oC, o kelyje klojamo – 120–160 oC. Šių procesų metu į aplinką paskleidžiama įvairių teršalų: anglies dioksido, formaldehidų ir kt. Pasaulyje ir Lietuvoje atlikti moksliniai tyrimai parodė, kad naudojant specialius priedus galima sumažinti karštų asfalto mišinių gamybos bei klojimo kelyje temperatūrą. Toks temperatūros sumažinimas leidžia nepabloginti asfalto dangų kokybės, sumažinti teršalų išmetimą į aplinką, pagerinti kelyje dirbančių darbuotojų darbo sąlygas, ekonomiškiau naudoti asfalto mišinių gamybai reikalingas dujas. Šiame straipsnyje analizuojamos skirtingų asfalto mišinių gamybos technologijos, jų privalumai ir trūkumai, laboratorinių bandymų rezultatai. Pateikiami eksperimentinių kelių ruožų įrengimo pavyzdžiai, naudojant šiltojo maišymo asfalto mišinius.

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JONGENEELEN, FRANS J., PAUL T. J. SCHEEPERS, ANITA GROENENDIJK, LEON A. G. J. M. VAN AERTS, ROB B. M. ANZION, ROBERT P. BOS, and SIEBRAND J. VEENSTRA. "Airborne Concentrations, Skin Contamination, and Urinary Metabolite Excretion of Polycyclic Aromatic Hydrocarbons among Paving Workers Exposed to Coal Tar Derived Road Tars." American Industrial Hygiene Association Journal 49, no. 12 (December 1988): 600–607. http://dx.doi.org/10.1080/15298668891380312.

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Dissertations / Theses on the topic "Road Paving Workers"

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Barrett, Anna S. "Analysis of Polycyclic Aromatic Hydrocarbon Exposure in Road Paving Workers." University of Cincinnati / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1406809606.

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Mayo-Bobee, Dinah. "Congressional Angst: Paving a Legislative Road to the War of 1812." Digital Commons @ East Tennessee State University, 2012. https://dc.etsu.edu/etsu-works/732.

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3

COÊLHO, Rosa Maria Gonçalves. "Uso do agregado calcário na fabricação de concreto asfáltico." Universidade Federal de Campina Grande, 1995. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/2158.

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Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-11-09T16:57:24Z No. of bitstreams: 1 ROSA MARIA GONÇALVES COÊLHO - DISSERTAÇÃO PPGECA 1995..pdf: 23915263 bytes, checksum: 4e9195023b290e36631b4c43b7d4cbea (MD5)
Made available in DSpace on 2018-11-09T16:57:24Z (GMT). No. of bitstreams: 1 ROSA MARIA GONÇALVES COÊLHO - DISSERTAÇÃO PPGECA 1995..pdf: 23915263 bytes, checksum: 4e9195023b290e36631b4c43b7d4cbea (MD5) Previous issue date: 1995-12-18
CNPq
Esta dissertação apresenta os resultados de uma pesquisa desenvolvida com o objetivo de se utilizar o agregado graúdo não convencional calcário, de formações calcítica e dolomítica, como agregado alternativo em substituição ao agregado convencionalmente usado na fabricação dos concretos betuminosos usinados à quente, como forma de redução de custos de obras rodoviárias, em regiões onde as rochas calcárias são predominantes. Para que pudessem ser comprovadas as características que mostram a resistência da mistura betuminosa, foi utilizado o Ensaio Marshall. Foram feitos ensaios físicos e mecânicos de forma a comprovar suas características na pavimentação. São apresentados alguns resultados de serviços executados na pavimentação da cidade de Mossoró-RN, com resultados satisfatórios de uso nas diferentes camadas do pavimento. Os resultados obtidos nesta pesquisa permitiram concluir que devido a resistência satisfatória e propriedades similares as da brita granítica além de menores custos de extração e britagem, o agregado calcário pode substituí-la com muita propriedade, quando empregado no uso de concreto betuminoso usinado à quente como revestimento em rodovias, reduzindo-se o custo final da obra.
This thesis presents the results of an investigation carried out to study the performance of a non conventional aggregate, calcareous aggregate of the dolomitic and calcitic formation, in substitution to the dolomitic and calcitic aggregate. used to fabricate hot-mix bituminous concrete. The predominant characteristics of the bituminous mixtures were evaluated using the traditional Marshall test. In order to determine the quality of the mixture, physic and mechanic tests were applied. The results obtained in this investigation in regard to existing pavement, named airport of Mossoró-RN city, constructed with calcareous aggregate in the bituminous mixtures, revealed that the altermative mixture made with calcareous aggregate, is a valid one. Also, the results from laboratory tests, showed that the strength property of the bituminous mixture made with the normal granitic aggregate. Therefore, based on these results, it can concluded that the calcareous aggregate is an alternative aggregate that can be used to fabricate bituminous mixtures, in replacement of the conventional granitic aggregate.

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Chuang, Guo-Yang, and 莊國揚. "Characteristics of PAHs Emission and Exposure Assessment of Road Paving Workers." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/85061934126296876393.

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碩士
國立陽明大學
環境衛生研究所
91
The area of the rebuilt road was about 80,000 square kilometers, and the number of workers engaging these jobs estimated 40,000 in Taiwan during 2000. However, regarding polycyclic aromatic hydrocarbons (PAHs) exposure of paving workers, there has been few studies in Taiwan. The road construction industries include the asphalt manufacture, the asphalt pavement, bridge-building industry, road maintenance, etc. Therefore the workers spraying asphalt in the process of road maintenance are exposed to hazardous substances which may cause adverse health effects. This study was set to measured PAHs exposure of paving workers via field sampling as well as personal air samplering. The dust and PAHs, including both gaseous and particle-bound, were extracted by Soxhlet extractor and analyzed by using HPLC and fluorescence detector. Ninety asphalt workers serving for road resurface in Taipei city were selected and the personal air samples were collected on their breath zone. Results showed that the total PAHs levels for the paving machine operators, asphalt pavers, road roller drivers and road digger drivers were 2107.50, 1535.08, 1339.20, and 539.41 , respectively; their ratios of gas-phase and particle-bound PAHs were 26.17, 20.07, 16.83, 4.38, respectively. The range of BaP equivalent concentrations were found as ~ , and the health risks were found ~ . The highest health risks were found for the paving machine operators and for the road roller drivers. The conclusions suggest the importance on managing the PAH exposure to paving workers. The study provides valuable information for the safety and health management of the road-paving workers. The authorities should enforce further research to improve the exposure situation for paving workers. In summary, the study finds that the PAHs exposure of paving workers is a significant issue and the health supervision is need.

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Books on the topic "Road Paving Workers"

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Landscape Construction: Roads, Paving and Drainage. Gower Pub Co, 1997.

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Property Services Agency. Directorate of Building and Quantity Surveying Services., ed. Schedule of rates for minor works and maintenance of roads and pavings 1985. 4th ed. London: H.M.S.O., 1986.

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Chung, Sue Fawn. Of Wood and Trains. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252039447.003.0006.

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This chapter examines the employment of Chinese laborers in the construction of railroads, primarily to cut trees in order to clear the roads, make ties, and provide fuel for the trains. The intensification of western railroad construction that began in California around 1854 stimulated the rapid growth of logging. The passage of the Timber and Stone Act of 1878 gave both mining and railroad companies a great incentive to be involved in logging, paving the way for more frenzied cutting and for larger, better-capitalized companies. This chapter discusses the role of Chinese workers recruited from the lumber industry in helping to build standard- and narrow-gauge railway lines that connected the forests, rural areas, and transportation centers in the American West. It also considers how railroad construction created another boom in the lumber trade and the establishment of new towns.

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Book chapters on the topic "Road Paving Workers"

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"Roads and Pavings." In Spon's External Works and Landscape Price Book 2013, 457–61. CRC Press, 2012. http://dx.doi.org/10.1201/b15276-90.

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"Roads and Pavings." In Spon's External Works and Landscape Price Book 2012, 472–76. Spon Press, 2011. http://dx.doi.org/10.1201/9780203157091-88.

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"Roads and Pavings." In Spon's External Works and Landscape Price Book 2010, 69–80. Spon Press, 2009. http://dx.doi.org/10.1201/9781482285512-25.

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"Roads and Pavings." In Spon's External Works and Landscape Price Book 2010, 376–79. Spon Press, 2009. http://dx.doi.org/10.1201/9781482285512-59.

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"Q22 Coated Macadam Roads/Pavings." In Spon's External Works and Landscape Price Book 2014, 250–54. CRC Press, 2014. http://dx.doi.org/10.1201/9781482264357-63.

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"Q22 Coated Macadam Roads/Pavings." In Spon's External Works and Landscape Price Book 2013, 239–43. CRC Press, 2012. http://dx.doi.org/10.1201/b15276-67.

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"Q Roads and Pavings 74." In Spon's External Works and Landscape Price Book 2012, 92–109. Spon Press, 2011. http://dx.doi.org/10.1201/9780203157091-29.

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"Class R: Roads and pavings." In Spon's Civil Engineering and Highway Works Price Book 2010, 308–22. Spon Press, 2009. http://dx.doi.org/10.1201/9781482296259-42.

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"Class R: Roads and pavings." In Spon's Civil Engineering and Highway Works Price Book 2014, 310–26. CRC Press, 2014. http://dx.doi.org/10.1201/9781482264340-52.

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"CLASS R: ROADS AND PAVINGS." In Spon's Civil Engineering and Highway Works Price Book 2009, 326–41. Spon Press, 2008. http://dx.doi.org/10.1201/9781482266306-37.

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Conference papers on the topic "Road Paving Workers"

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Hester, Andrea J., Jo Ellen Moore, and Susan E. Yager. "The Role of Voice in Retention of IT Workers: Paving the Higher Road." In 2014 47th Hawaii International Conference on System Sciences (HICSS). IEEE, 2014. http://dx.doi.org/10.1109/hicss.2014.493.

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Wilson, Willard. "Waste Combustor Ash Utilization." In 17th Annual North American Waste-to-Energy Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/nawtec17-2301.

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The incorporation of municipal solid waste combustor (MWC) ash into bituminous pavements has been investigated in the United States since the middle 1970s. Thus far, most, if not all of these projects, have attempted to answer the questions: Is it safe? Is it feasible? Or does it provide an acceptable product? Polk County Solid Waste located in Northwest Minnesota has now completed three Demonstration Research Projects (DRP) utilizing ash from its municipal solid waste combustor as a partial replacement of aggregate in asphalt road paving projects. The results of these projects show no negative environmental or worker safety issues, and demonstrate improved structural performance and greater flexibility from the ash-amended asphalt as compared to conventional asphalt. Polk County has submitted an application to the Minnesota Pollution Control Agency (MPCA) to obtain a Case-Specific Beneficial Use Determination (CSBUD), which would allow for continued use of ash in road paving projects without prior MPCA approval. However, concerns from the MPCA Air Quality Division regarding a slight increase in mercury emissions during ash amended asphalt production has resulted in a delay in receiving the CSBUD. Polk County decided to take a different approach. In January 2008, Polk submitted and received approval for their fourth ash utilization DRP. This DRP differs from the first three in that the ash will be used as a component in the Class 5 gravel materials to be used for a Polk County Highway Department road rebuilding project. The project involves a 7.5 mile section of County State Aid Highway (CSAH) 41, which conveniently is located about 10 miles south of the Polk County Landfill, where the ash is stored. The CSAH 41 project includes the complete rebuilding and widening of an existing 7.5 mile paved road section. Ash amended Class 5 gravel would be used in the base course under the asphalt paving, and also in the widening and shouldering sections of the road. The top 2 inches of the widening and shouldering areas would be covered with virgin Class 5 and top soil, so that all ash amended materials would be encapsulated. This has been the procedure followed in previous projects. No ash will be used in the asphalt mix for this project. This paper discusses production, cost, performance and environmental issues associated with this 2008 demonstration research project.

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