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Now showing items 101-110 of 159
Characteristics, benefits, challenges, and socio-cultural factors of implementing pbl in qatar
(
Aalborg University
, 2020 , Conference Paper)
While project-and/or problem-based learning has been implemented in higher education worldwide for several decades, both modes of PBL remain a new phenomenon in Qatar. Over the past few years, several research projects ...
Effect of Alkaline Activators on the Mechanical Properties of Geopolymer Mortar
(
Qatar Univesrity Press
, 2020 , Conference Paper)
"Geopolymerization is a process where silica and alumina rich source materials turn
into excellent binding materials by the aid of alkali solutions. Materials such as fly ash
are by-products in energy power plants. Fly ...
Evaluating the Operational Impact of Left-Turn Exclusive Number of Lanes: A Case Study from Qatar
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Left-turning movements can significantly reduce the overall capacity of signalized
intersections due to the queueing built up. Intersections with heavy left-turning volumes
tend to use multiple lanes to accommodate left-turn ...
Evaluation of Bond Strength Between Carbon Fiber Reinforced Polymer (CFRP) Composites with Modified Epoxy Resins and Concrete
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Rehabilitation and strengthening of concrete structures are becoming more significant
in civil engineering applications. The use of externally bonded Fiber Reinforced
Polymers (FRP) is one of the methods to strengthen and ...
Comparison of the Mechanical Behavior of Railroad Ballast in a Box Test under Sinusoidal and Realistic Train Loadings Using Discrete Element Method
(
Qatar Univesrity Press
, 2020 , Conference Paper)
A ballasted track is a popular type of railway track and its use is increasing all over the
world. A ballasted track consists of different structural elements like rails, fasteners,
sleepers, ballast layer, sub-ballast ...
An Artificial Intelligence Approach to Estimate Travel Time along Public Transportation Bus Lines
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Public transportation sectors have played significant roles in accommodating passengers
and commodities efficiently and effectively. The modes of public transportation
often follow pre-defined operation schedules and routes. ...
Optimum Dispersion Parameters of Carbon Nanotubes: Concrete Strength by Response Surface Methodologies
(
Qatar Univesrity Press
, 2020 , Conference Paper)
"This paper implements Response Surface Methodologies (RSM) techniques to illustrate
the maximum carbon nanotubes (CNTs)-concrete mechanical properties responses to the
length, weight fraction and treatment variables. ...
Development of Warm Mix Asphalt with the Aid of Microstructural Characterization
(
Qatar Univesrity Press
, 2020 , Conference Paper)
The polymer-modified asphalt (PMA) reveals different types of advantageous properties
depending on the type of polymer. However, one of the unwanted changes in PMA is the
required higher temperature for mixing and compaction. ...
Dosage Optimization of Polypropylene Fiber for Strength Enhancement of Cementitious Composites
(
Qatar Univesrity Press
, 2020 , Conference Paper)
"Concrete is the most commonly used materials for construction in Qatar as well as in
the world. Exposure to sever environmental conditions causes physical deterioration
of concrete structures and significantly affect ...
Practical Implementation of Contract Administration Performance Model in Qatar Construction Projects
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Globally, the performance of Construction Contract Administration (CCA) is becoming of significant interest as the industry suffers from notable delays, cost overruns, and disputes as a consequence of poor contract ...