Search
Now showing items 1-9 of 9
Estudio de las órdenes de cambio en proyectos de diseño-construcción en las escuelas del siglo XXI
(2015)
Change orders have a strong potential to become difficult, because of its significant increase in cost and contract duration extension. This research identifies and evaluates the causes of change orders in design build ...
Estudios de las propiedades de los morteros que emplean altas dosis de cenizas volantes activadas alcalinamente
(2014)
Portland cement is the worldwide most commonly used material in construction. However, it is known that the Portland cement industries have a significant negative impact in the environment. For this reason, there is a study ...
Exploración de un marco normativo efectivo y aplicable de alianzas público-privadas para los municipios de Puerto Rico
(2019-12-06)
El marco regulatorio puertorriqueño en materia de Alianzas Público-Privadas (APP) está recogido en la Ley 29 de 2009, según enmendada, titulada «Ley de Alianzas Público-Privadas». Esta ley a su vez creó el marco institucional ...
Mechanical, durability and financial analysis of concrete mixtures with nanosilica, silica fume and fly ash
(2020-05-14)
This study encompasses the analysis of mechanical properties, durability and cost-effectiveness of concrete mixtures with nanosilica particles, silica fume and fly ash utilized as admixtures. The cost of materials for the ...
Viabilidad de un edificio de aparcamientos multiusos mediante una Alianza Público Privada en el Recinto Universitario de Mayagüez de la Universidad de Puerto Rico
(2019-05-13)
The World Bank indicated that inadequate infrastructure hinders local economic growth, competitiveness, and is a major cause for a deficient quality of life. For the past decade, the government of Puerto Rico has been ...
Diseño geométrico de los registros sanitarios y su efecto en el pavimento flexible de Puerto Rico
(2020-12-08)
The defects caused by sanitary manholes on the asphalt pavement may affect the safety of the drivers on the roadway. The objective of this project is to study the effect of the manhole in the asphalt pavement in Puerto ...
Arced labyrinth weir geometric design for auxiliary spillway applications in existing dam infrastructure
(2015)
A new optimization scheme procedure for arced labyrinth weir design is proposed to be used in a spillway value analysis, for the design of auxiliary spillways. The arced labyrinth spillway geometric design based on an ...
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 ...
Estudio de la influencia del cemento Pórtland en las propiedades del hormigón con cenizas volantes
(2012)
The durability of concrete is influenced by its porous network. The use of fly ash in concrete mixtures produces additional hydration products, changing its micro-structure. As a concrete admixture, fly ash not only improves ...