Papers by Miguel A Pereyra
Historia de la educación : revista interuniversitaria, 1982
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European Education, Apr 1, 2011
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Routledge eBooks, 2014
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Leyes Españolas, 2014
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Leyes Españolas, 2015
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DOAJ (DOAJ: Directory of Open Access Journals), Sep 1, 2013
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Revista de la Asociación Geológica Argentina, May 24, 2021
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The most important terrestrial connection between Argentina and Chile is the International Pass “... more The most important terrestrial connection between Argentina and Chile is the International Pass “Cristo Redentor”, concentrating more than 70% of the trade between both countries. On the Argentine side, at the middle of the Andes Range, National Road No 7 has a jointed plain concrete pavement in its section nearest to the boundary. That pavement is more than 20 years old, and supported during its life very hard winters and a traffic with a high proportion of heavy articulated trucks. This paper presents an evaluation of the performance of that pavement from recently collected distress data, using World Bank s and PIARC s HDM-4 Model. Results clearly show the high influence of rigorous climate and winter maintenance on the severe distress observed on the surface of the pavement, especially in its sectors of higher altitude above sea level. Also, the predictive capacity of HDM-4 distress models for jointed plain concrete pavements has been verified in this case; functional-type models...
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This paper presents a methodology developed to adjust and calibrate the Mechanistic-Empirical Pav... more This paper presents a methodology developed to adjust and calibrate the Mechanistic-Empirical Pavement Design Guide (MEPDG) distress models to local conditions in Argentina, to be used in rigid pavement structural design. A wide range of climatic conditions was covered by selecting test sections of rigid pavements located in different regions of the country. Local road agencies provided information about pavements structure, and traffic volume and load spectra. Field distress data and IRI was collected during the study, and the data was processed using MEPDG software. Finally, calibration factors were determined for the different distress models of rigid pavements. The results show that climatic conditions in Argentina seem to be very influential on the values obtained for calibration factors.
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Transportation Research Record: Journal of the Transportation Research Board, 2015
Gravel roads are an important portion of the road network in western Argentina, and their mainten... more Gravel roads are an important portion of the road network in western Argentina, and their maintenance requires a huge amount of economic and human resources. Recently, the use of alternative treatments based on the application of mineral salts such as hydrous magnesium chloride, also known as bischofite, has been introduced in this region. Such treatments are being applied for dust control and surface stabilization on unpaved roads. This paper presents the main results obtained during a research project carried out by the National University of San Juan, Argentina, along with local road agencies and companies. Test sections of gravel roads were treated with bischofite applied in two ways. Over 18 months, measurements of surface roughness and dust emission were made on those sections. The main results show that the use of bischofite contributed to a notable reduction in the evolution of roughness and dust emission as compared with untreated gravel sections. Bischofite appears to be a...
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Berghahn Books, Dec 31, 2022
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Profesorado, Revista de Currículum y Formación del Profesorado, Sep 1, 2013
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DOAJ (DOAJ: Directory of Open Access Journals), 2013
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Profesorado: Revista de curriculum y formación del profesorado, Sep 1, 2009
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Historia de la educación, Feb 13, 2022
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Leyes Españolas, 2015
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Papers by Miguel A Pereyra