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Avila, Rodrigo Hernandez
- Load Vehicle Damage Factor (LVDF) on National Highways in the Colombian Caribbean Region
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Authors
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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
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- Multi-Stage Filtration (MSF) Technology with Natural Coagulants for Raw Water Treatment from the Sinu River in Colombia
Abstract Views :203 |
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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
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