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Estudio de la influencia de las adiciones minerales como sustituto parcial del cemento Portland en las propiedades mecánicas y de durabilidad del hormigón
(2012)
The use of mineral admixtures as substitute of cement in concrete is widely extended for various reasons. The reduction of doses of cement in the concrete mixtures reduces the material costs, decreases the pollution and ...
Integrating groundwater resources in existing water supply infrastructure using spatial tools
(2012-05)
Management and development of groundwater resources introduces the challenge of collecting necessary information to understand the system. The information must integrate the aquifer system characteristics and the limitations ...
Impulse load response of lattice steel columns
(2012)
Many bridges that represent an important part of our nation’s infrastructure system are constructed from steel components including steel plates, beams, columns, and cables of different configurations. Because of their ...
Disinfection by-products occurrence and Escherichia Coliform removal in a point-of-entry cistern purification unit
(2012)
This research aims to develop and test a Point-of-Entry Cistern Purification Unit (POE-CPU) to guarantee water quality for household purposes, with an emphasis on turbidity, E. coli removal and minimal occurrence of ...
Computational analysis of critical gusset plate connections in steel bridges
(2012)
An existing steel truss bridge located in Missouri was selected to determine the critical connections based on the loads criteria established in the Manual for Bridge Evaluation. The selected connections were typically ...
Regionalized flood frequency analysis for basins in Puerto Rico
(2012)
The main goal of this research is to provide a flood regionalization study for Puerto Rico based on recent advances in watershed classification and parameter estimation techniques. The regional flood frequency was achieved ...
Axial compression load transfer mechanisms of drilled shafts in weak porous limestone
(2012)
The considerable increase in the use of drilled shafts to meet the demand of loads of great magnitude in the construction of buildings, roads and bridges, the fact that around 27.5% of the geomorphologic area of Puerto ...
Computational mechanics of tainter gates; trunnion friction study
(2012)
Tainter gates are a type of floodgate with a radial geometry that is used in dams and canal locks to control the water flow from navigation structures. Throughout the years, these structures have presented operational ...
Estudio de viabilidad sobre el uso de energía renovable solar en la oficina de campo de proyectos de infraestructura
(2012)
Based on the environmental impact caused by the consumption of energy produced by the burning of fossil fuel, global warming and the concern that natural resources are limited, theories of sustainable development to develop ...
Development of ternary relationships among soil characteristics, CAAs amount, and groundwater quality: column percolation
(2012)
Coal ash aggregates (CAAs) from a coal power plant was evaluated for use as a backfilling substitute in open pit restoration. The restoration was successfully simulated under laboratory conditions by using three dissimilar ...