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السجلات المعروضة 451 -- 460 من 517
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 ...
Enhancement of Naphthalene Biodegradation by Sulfate Application in Brackish Subsurface Systems
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Anaerobic biodegradation is the most dominant mechanism in the petroleum hydrocarbon
contaminated subsurface systems. Due to depletion of terminal electron acceptors such
as sulfate, anaerobic degradation of organic ...
Long-Term Cost Performance of Corrosion-Resistant Reinforcements in Structural Concrete
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Corrosion, which leads to the premature deterioration of reinforced concrete (RC)
structures, is increasingly an issue of global concern. Accordingly, corrosion-resistant
materials have emerged as alternative reinforcement ...
Cantilever Beam Metastructure for Passive Broadband Vibration Suppression
(
Qatar Univesrity Press
, 2020 , Conference Paper)
This paper presents a beam structure of a new metamaterial-inspired dynamic vibration
attenuation system. The proposed experimental research presents a designed cantilevered
zigzag structure that can have natural frequency ...
Towards Sustainable Public Open Spaces for Promoting Human Comfort, Health and Well-Being: The Case of Oxygen Park in Doha, Qatar
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Public Open Spaces (POS) are an important and necessary component of the urban city
design. Well-designed and well-functioning public open spaces provide a variety of
social, economic, environmental, physical and psychological ...
Impact of Ionic Strength on Colloid Retention in a Porous Media: A Micromodel Study
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Release of deposited colloids in the soil porous media during two-phase flow poses
potential health hazard due to the facilitated transport of contaminants towards
groundwater reservoirs. Considerable uncertainties exist ...
Utilizing Steel Slag in the Removal of Suspended Solids from Dewatered Construction Water
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Construction dewatering is an operation used to remove shallow groundwater that
infiltrates construction sites. After recovering this water from the construction sites, the
water is either discharged to the sea, injected ...