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Now showing items 11-20 of 24
A model for predicting failure of oil pipelines
(
Taylor & Francis
, 2014 , Article)
Oil and gas pipelines transport millions of dollars of goods everyday worldwide. Even though they are the safest way to transport petroleum products, pipelines do still fail generating hazardous consequences and irreparable ...
Recycling of Local Qatar’s Steel Slag and Gravel Deposits in Road Construction
(
OMICS International
, 2014 , Article)
Every year, the State of Qatar generates about 400,000 tons of steel slag and another 500,000 tons of gravel as a result of steel manufacturing and washing sand, respectively. The two materials (by-products) are not fully ...
The Effect of Aluminium Dross on Mechanical and Corrosion Properties of Concrete
(
OMICS International
, 2014 , Article)
It is the objective of this project is to investigate the mechanical and chemical behaviour of new concrete type obtained by adding aluminium dross which is an impure aluminium mixture that results from metals melting and ...
Modeling of the sustainability goal and objective setting process in the predesign phase of green institutional building projects
(
American Society of Civil Engineers (ASCE)
, 2014 , Article)
The process of constructing a sustainable green building presents a number of challenges compared with regular buildings. Additional work and documentation is needed in every stage of the project life cycle for the sustainable ...
Implementation of mechanistic-empirical pavement analysis in the State of Qatar
(
Taylor & Francis
, 2014 , Article)
The State of Qatar is experiencing tremendous growth in infrastructure including road network and highways. The current methods used in design of asphalt pavements in the State of Qatar are empirical and might not be ...
Critical factors determining bid/no bid decisions of contractors in Qatar
(
American Society of Civil Engineers (ASCE)
, 2014 , Article)
To bid or not to bid for construction projects is a crucial strategic decision for contractors' sustainability in the industry. The high complexity and uncertainty associated with such a decision-making process, which ...
Experimental investigation of the influence of grain geometry on residual NAPL using synchrotron microtomography
(
Elsevier B.V.
, 2014 , Article)
The objective of this work was to investigate the impact of grain geometry (size and shape) of porous media on the morphology of residual NAPL. Synchrotron microtomography was used to obtain maps of residual NAPL in ...
Uptake of Reactive Black 5 by pumice and walnut activated carbon: Chemistry and adsorption mechanisms
(
Elsevier
, 2014 , Article)
The potential of using pumice and walnut wood activated carbon as low-cost adsorbents for the removal of the diazo dye Reactive Black 5 (RB5) from aqueous solutions was investigated. The Langmuir isotherm fit to the data ...
The fictitious force method for efficient calculation of vibration from a tunnel embedded in a multi-layered half-space
(
Elsevier
, 2014 , Article)
This paper presents an extension of the Pipe-in-Pipe (PiP) model for calculating vibrations from underground railways that allows for the incorporation of a multi-layered half-space geometry. The model is based on the ...
Characterisation of fatigue resistance of alternative pavement design for the state of Qatar
(
Taylor and Francis - Balkema
, 2014 , Conference Paper)
Asphalt mixtures have been designed in the past in the State of Qatar to safeguard against permanent deformation associated with high temperatures. These mixtures are typically designed to have low content of unmodified ...