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Now showing items 31-40 of 127
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 ...
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. ...
Life Cycle Assessment for Fiber-Reinforced Polymer (FRP)nComposites Used in Concrete Beams: A State-of-the-Art Review
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Fiber-reinforced polymer (FRP) composites have become popularly utilized in structural
engineering applications. The common use of the FRP composites is related to their
economic benefits that can be observed right away ...
Unfair Payment Issues in Construction: Re-Thinking Alternative Payment Method For Tier-1 Contractors to Subcontractors
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Recent statistics reveal substantial increase in late payments cases from 18% to 27%; with over £30 billion unpaid invoices to UK contractors. Furthermore, 82% of overdue invoices are monies owed to subcontractor by tier-1 ...
Strategies for Communicating Health and Safety Information on Construction Sites in Nigeria
(
Qatar Univesrity Press
, 2020 , Conference Paper)
The construction industry (CI) has earned the notoriety of being a risky or profoundly
unsafe industry. Studies have credited the majority of the mishap on construction sites
to poor communication of health and safety (H&S) ...
Accelerated Corrosion Tests on Lapped Spliced Joints in Concrete
(
Qatar Univesrity Press
, 2020 , Conference Paper)
This paper presents a new test setup of experiments to investigate corrosion at lapped
spliced joints using accelerated corrosion test. The experiments were carried out on two
set of samples: cylinders and beam blocks. ...
Novel Method for Assessing Moisture Damage in Asphalt Mixtures
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Moisture damage is a major cause of early pavement deterioration and often accelerates
other distresses such as rutting, fatigue cracking, and raveling. Water infiltrates into the
pavement structure through the cracks and ...
Using Ground Penetrating Radar (GPR) to Evaluate Air Voids Content in Hot Mix Asphalt
(
Qatar Univesrity Press
, 2020 , Conference Paper)
"Air voids content is one of the most important characteristics of Hot Mix Asphalt (HMA).
Air voids content that is either too high or too low can negatively impact pavement
life and lead to deteriorations such as fatigue ...
The New Construction Approach Adapted by Ashghal for the Public Projects in Qatar
(
Qatar Univesrity Press
, 2020 , Conference Paper)
"The purpose of this paper is to review the new strategy adapted by Ashghal to implement
lean construction in Qatar to improve project performance and predictability of delivery.
This is a significant change programme ...
Hydrogen Gas Production from the Injection of Nanoscale Zero-Valent Iron and Sodium Borohydride Solutions: Potential Effects Near Injection Wells
(
Qatar Univesrity Press
, 2020 , Conference Paper)
The injection of nano-scale zero-valent iron (nZVI) is a remediation technique for the
treatment of organic and metal contamination in soil and groundwater. The hydrogen gas
(H2) produced during the reaction of nZVI and ...