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Wilches, Fernando Jove
- Load Vehicle Damage Factor (LVDF) on National Highways in the Colombian Caribbean Region
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Authors
Affiliations
1 Department of Civil Engineering, University of Sucre, Cra. 28 #5-267, Puerta Roja, Sincelejo, CO
1 Department of Civil Engineering, University of Sucre, Cra. 28 #5-267, Puerta Roja, Sincelejo, CO
Source
Indian Journal of Science and Technology, Vol 11, No 26 (2018), Pagination: 1-9Abstract
Objective: To determine damage factors of trucks that most frequently use national roads in the Colombian Caribbean Region. Methods/Analysis: Information provided by the National Institute of Colombian Roads was used according to a mobile weighing operation carried out in 2005. Damage factors for each truck type were obtained from the weights of each vehicular axle, by implementing three different methods: The AASHTO general method, AASHTO simplified method and SHELL method. Findings: 16,611 heavy trucks were totally analyzed in the operation. Subsequently, results obtained were compared with those observed in other similar studies carried out in the country. Application: Damage factors defined in this study for lighter vehicles have lower values than those observed in previous measurements. In contrast, for the case of heavier trucks, the opposite occurs.Full Text
References
- Jove F. Espectros de carga y factores da-o de vehículos de carga en carreteras de la region Caribe colombiana. 1st ed. Barranquilla, Colombia: Universidad del Norte; 2011.
- Prozzi JA, Hong F. Optimum statistical characterization of axle load spectra based on load associated. International Journal of Pavement Engineering. 2009; 8(4):323–30. Crossref.
- American Association of State Highway and Transportation Officials (AASHTO). Guide for mechanistic-empirical design. 1st ed. Washington DC; 2004.
- Ministerio de Transporte, Manual de Dise-o de Pavimentos Asfalticos para Vías con Bajos Volúmenes de Transito. Bogota: Instituto Nacional de Vías; 2007.
- Asphalt Institute, The Asphalt Handbook. Manual Series No. 4 (MS-4). Washington DC; 1989. pp. 1–607.
- Reyes F. Dise-o racional de pavimentos. 1st ed. Bogota: Escuela Colombiana de Ingeniería; 2003.
- Montejo A. Ingenieria de pavimentos. 3rd ed. Bogota: Universidad Católica de Colombia; 2006.
- Rondón H, Reyes F. Pavimentos-Materiales, Construcción y Dise-o, Bogota DC, Colombia: ECOE Ediciones; 2015. pp. 1–650. PMid:26211959
- Huang Y. Pavement Analisis and Design. 2nd ed. New Jersey: University of Kentucky; 2004.
- Murgueitio A, Benavides C, Solano E. Estudio de los factores da-o de los vehículos que circulan por las carreteras colombianas. 11th Simposio Colombiano sobre Ingeniería de Pavimentos; Cartagena, Colombia. 1997. p. 332– 42.
- American Association of State Highway and Transportation Officials (AASHTO), Guide for Design of Pavement Structures. 1st ed. Washington DC; 1993. p. 1–624.
- Sanchez FY, Campagnoli S. Pavimentos asfálticos de carreteras: Guia Practica Para Los Estudios Y Dise-os. 1st ed. Bogota: Editorial Escuela Colombiana de Ingeniería; 2016. p. 1–518.
- Multi-Stage Filtration (MSF) Technology with Natural Coagulants for Raw Water Treatment from the Sinu River in Colombia
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Authors
Affiliations
1 Department of Civil Engineering, University of Sucre, Carrera 28 No. 5-267, Puerta Roja, Sincelejo, CO
1 Department of Civil Engineering, University of Sucre, Carrera 28 No. 5-267, Puerta Roja, Sincelejo, CO
Source
Indian Journal of Science and Technology, Vol 11, No 35 (2018), Pagination: 1-5Abstract
Objective: To determine turbidity removal efficiency of raw water samples, by using Multi-Stage Filtration technology and complemented with natural coagulants. Methods/Analysis: Water samples were taken from the Sinu River. A pilot plant was set up in laboratory, and treatability tests were carried out on samples with different scenarios. Findings: The best treatment for raw water was obtained when 240 m3m-2d-1 rates were applied for 200 NTU initial turbidity. There were no alterations in pH and water alkalinity after treatability tests. Application: This raw water treatment technology is very useful and appropriate to be applied in rural areas with difficult access and scarce economic resources, since its simplicity does not require costly inputs or maintenance.Full Text
References
- Ministerio de la Proteccion Social y Ministerio de Ambiente, Vivienda y Desarrollo Territorial. Resolucion numero 2115, 2007 Jun 22. Bogotá, Colombia; 2007. p. 2–4.
- Ministerio de Salud y Proteccion Social, Republica de Colombia. Informe Nacional de Calidad del agua para consumo humano – INCA 2016. Bogotá, D.C.; 2018. p. 1–392.
- Instituto Nacional de Salud, Dirección en salud Publica. Estado de la vigilancia de la Calidad del Agua para consumo humano 2016. Bogota, D.C., Colombia; 2017. p. 1–138.
- Departamento Nacional de Planeacion, Consejo Nacional de Política Economica y Social. Política para el suministro de agua potable y saneamiento básico en la zona rural, Documento Conpes 3810. Bogota D.C., Colombia; 2014. p. 46.
- Mushila CN, Ochieng GM, Otieno FAO, Shitote SM, Sitters CW. Hydraulic design to optimize the treatment capacity of Multi-Stage Filtration units. Physics and Chemistry of the Earth, Parts A/B/C. 2016; 92:85–91. https://doi.org/10.1016/j.pce.2015.10.015
- Wegelin M. Surface water treatment by roughing filters: a design, construction and operation manual. SKAT (Swiss Centre for Development Cooperation in Technology and Management). 1996; 2(96):1–163.
- Franco M, E Silva G, Paterniani J. Water treatment by multistage filtration system with natural coagulant from Moringa oleifera. Engenharia Agrícola. 2012; 32(5):1–9. https://doi.org/10.1590/S0100-69162012000500018
- Guzman L, Villabona A, Tejada C, Garcia R. Reduccion de la turbidez del agua usando coagulantes naturales: Una revision. Revista U.D.C.A Actualidad and Divulgación científica. 2013; 16(1):253–62.
- Feria JJ, Bermudez S, Estrada AM. Eficiencia de la semilla Moringa oleífera como coagulante natural para la remocion de la turbidez del rio Sinu. Produccion + Limpia. 2014; 9(1):9–22.
- Yin CY. Emerging usage of plant-based coagulants for water and wastewater treatment. Process Biochemistry. 2010; 45(9):1437–44. https://doi.org/10.1016/j.procbio.2010.05.030
- Centre for Affordable Water and Sanitation Technology. Filtro de arena para tecnicos. Calgary, Canada; 2012. p. 1–56.
- Feria JJ, Ballut G, Rodriguez J.P. Influence of storage time of moringa oleifera seed on the coagulant activity efficiency for raw water treatment. Indian Journal of Science and Technology. 2018; 11(9):1–4. https://doi.org/10.17485/ijst/2018/v11i9/121221
- American Public Health Association-American, Water Works Association, Water Environment Federation. Standard methods for the examination of water and wastewater. 21th Edition. AWWA: Washington, D.C.; 2005.
- Karanth KR. Groudwater assessment development and management. Tata McGraw Hill Publishing Company Ltd.: New Delhi, India; 1987. p. 1–720.
- Lozano-Rivas WA, Lozano-Bravo G. Potabilizacion del Agua: Principios de dise-o, control de procesos y laboratorio. 1st Edition. Editorial Universidad Piloto de Colombia: Bogota D.C., Colombia; 2015.
- Rodi-o JP, Feria JJ, Paternina RDJ, Marrugo JL. Sinu River raw water treatment by natural coagulants. Revista Facultad de Ingeniería Universidad de Antioquia. 2015; 76:90–8.
- Theoretical and Experimental Analysis of the Cracking Moment in Reinforced Concrete Footing Supported in Granular Soil
Abstract Views :228 |
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Authors
Affiliations
1 Department of Civil Engineering, University of Sucre, Carrera. 28, No. 5-267, Puerta Roja, Sincelejo, CO
1 Department of Civil Engineering, University of Sucre, Carrera. 28, No. 5-267, Puerta Roja, Sincelejo, CO
Source
Indian Journal of Science and Technology, Vol 11, No 36 (2018), Pagination: 1-9Abstract
Objective: To analyze flexural behavior of insulated footings supported on granular material and subject to low loads. Methods/Analysis: Experimental program included tests on 30 square reinforced concrete footings, 450 mm in length and reinforced with 6.3 mm bars. Experimental results were compared with theoretical results, according to the ACI 318- 14 Code. Findings: Results showed an average relationship between moment of experimental and theoretical cracking, in a range from 1.03 to 1.55. It was discovered that the value of rupture modulus recommended by the code was conservative. Application: It is required to continue with a more detailed study to establish influence of steel amount on the magnitude of the cracking moment of isolated footings.Full Text
References
- George F, Limbrunner A, Aghayere O. Reinforced Concrete Design. 8th ed. Pearson Education, Inc: New York; 2014. p. 1–312.
- Subramanian N. Design of Reinforced Concrete Structures. Oxford University Press: New Delhi, India; 2013.
- Thornburn PH. Fundation Engineering. 2nd ed. John Wiley and Sons, Inc: New Jersey; 1974.
- Calavera J. Cálculo de Estructuras de Cimentación. 4th ed. Intemac Ediciones: Madrid, Espa-a; 2000.
- American Concrete Institute. Building Code Requirements for Structural Concrete, ACI 318-14. American Concrete Institute: Washington, D.C.; 2014. p. 1–524.
- Hmed M, Dad Khan MK, Wamiq M. Effect of concrete cracking on the lateral response of RCC buildings, Asian Journal of Civil Engineering (Building and Housing). 2008; 9(1):25–34.
- Ahmed M, Hadi KME, Hasan MA, Mallick J, Ahmed A. Evaluating the co-relationship between concrete flexural tensile strength and compressive strength, International Journal of Structural Engineering. 2014; 5(2):115–31. https://doi.org/10.1504/IJSTRUCTE.2014.060902.
- Crespo-Villalaz C. Mecánica de suelos y Cimentaciones. 4th ed. Limusa Editores: México D.F.; 1998. p. 1–652.
- Das BM. Principles of Foundation Engineering. 8th ed. Cengage Learning; 2016. p. 1–896.
- Hegger J, Sherif AG, Ricker M. Experimental Investigations on Punching Behavior of Reinforced Concrete Footings, ACI Structural Journal. 2006; 103(4):604–13.