Civil and Environmental Engineering: المرسلات الحديثة
السجلات المعروضة 561 -- 580 من 851
-
Rheological evaluation of shortand long-term performance for warm mix asphalt (WMA) binders
( Kluwer Academic Publishers , 2016 , Article)Warm-mix asphalt (WMA) additives are environmentally friendly and cost-effective products that lower the viscosity of bituminous binders to allow reduction of mixing and compaction temperatures in asphalt mix production. ... -
Literature Review of Advancements in Adaptive Ramp Metering
( Elsevier , 2016 , Conference Paper)Over a period spanning more than 30 years, several ramp metering algorithms have been developed to improve the operation of freeways. Many of these algorithms were deployed in several regions of the world, and field ... -
Investigation of Weather Impacts on Pedestrian Volumes
( Elsevier B.V. , 2016 , Conference Paper)This study investigates the impacts of temporal and weather characteristics on pedestrian volumes in a hot climate condition. A major neighborhood located in an urban area in Doha, Qatar was chosen as a case study site. ... -
Stadium vibration assessment for serviceability considering the vibration duration
( Canadian Society for Civil Engineering , 2017 , Conference Paper)Vibration problems in grandstand structures have been getting more attention due to increasing slenderness of architectural components and the complexity of crowd loading for structural designers. The vibration serviceability ... -
Assessment of tire-pavement noise by using on-board sound intensity (Obsi) method in the state of qatar
( CRC Press/Balkema , 2017 , Conference Paper)Tire-pavement noise is the dominant source of traffic noise especially at medium and high speeds. Thus, various transportation agencies and researchers are actively investigating for establishment of accurate test methods ... -
Effect of surface roughening on concrete/trm bond
( ISEC Press , 2017 , Conference Paper)Textile reinforced mortar (TRM) is applied on the concrete surface with the aim of strengthening reinforced concrete structures. The performance of the strengthened structural system is directly related to the bond between ... -
The influence of bus service satisfaction on university students' mode choice
( John Wiley and Sons Ltd , 2016 , Article)The purpose of this study was to determine the relationship between bus service satisfaction and the transport mode of choice among university students in Qatar. The degree of bus service satisfaction was collected directly ... -
An inclusive framework for automatic safety evaluation of roundabouts
( Taylor and Francis Inc. , 2016 , Article)This article presents an approach for studying different aspects of traffic safety at roundabouts. An automated safety analysis framework is used to detect different types of traffic conflicts, as well as the inappropriate ... -
Active vibration control of flexible cantilever plates using piezoelectric materials and artificial neural networks
( Academic Press , 2016 , Article)The study presented in this paper introduces a new intelligent methodology to mitigate the vibration response of flexible cantilever plates. The use of the piezoelectric sensor/actuator pairs for active control of plates ... -
Predicting the performance of multi-media filters using artificial neural networks
( IWA Publishing , 2016 , Article)The impact of flow rate and turbidity on the performance of multi-media filtration has been studied using an artificial neural network (ANN) based model. The ANN model was developed and tested based on experimental data ... -
Effect of mixing duration on flexural strength of multi walled carbon nanotubes cementitious composites
( Elsevier Ltd , 2016 , Article)This paper investigates the effect of mixing duration on the flexural strength of multi-walled carbon nanotubes (MWCNTs) reinforced cementitious composites. Each batch containing 0.03%, 0.08%, 0.15% or 0.25% MWCNT to cement ... -
Probabilistic analysis of fatigue life for asphalt mixtures using the viscoelastic continuum damage approach
( Elsevier Ltd , 2016 , Article)Fatigue cracking is one of the most serious distress modes affecting the serviceability of asphalt pavement structures. The inherent variability of asphaltic materials exhibited in fatigue test results, especially for ... -
A chronological exploration of the evolution of housing typologies in Gulf cities
( Springer , 2016 , Article)This paper traces the evolution of housing typologies in four major cities in the Gulf region, namely Doha, Dubai, Abu Dhabi and Manama. The study reviews the formation and historical events in the region, which had a ... -
3D characterization of sand particle-to-particle contact and morphology
( Elsevier Ltd , 2016 , Article)Particle morphology, orientation, and contact configuration play a significant role in the engineering properties of granular materials. Accurate three-dimensional (3D) characterization of these parameters for experiments ... -
Multiobjective optimization model for scheduling of construction projects under extreme weather
( Taylor and Francis Ltd. , 2016 , Article)Extreme weather significantly impacts construction schedules and costs and can be a source of schedule delays and budget overruns. A multi-objective optimization model, presented herein for the scheduling of construction ... -
Drained residual shear strength at effective normal stresses relevant to soil slope stability analyses
( Elsevier B.V. , 2016 , Article)An extensive torsional ring shear testing program has been conducted to measure the drained residual shear strength of soils at the wide range of effective normal stress (10 to 700 kPa) usually mobilized in reactivated and ... -
Comparative evaluation of fatigue resistance of warm fine aggregate asphalt mixtures
( Elsevier Ltd , 2016 , Article)Fatigue cracking is one of the crucial distresses in asphalt pavements that affect its service life and rehabilitation process. The resistance of asphalt mixtures to fatigue failure in the laboratory experiments is influenced ... -
Performance Evaluation of Vehicle Restraint Systems in the Context of Design and Installation
(2021 , Article)Vehicle Restraint Systems (VRS), a necessary component of the road design, are widely implemented by transport authorities to protect vehicles from severe incidents, mainly colliding to the roadside as well as median ... -
The effect of end bearings on the dynamic behaviour of floating-slab tracks with discrete slab units
( Taylor and Francis Ltd. , 2017 , Article)This article builds on previous work in the literature to investigate the dynamic effect of end bearings between consecutive slab units of floating-slab tracks. The work considers a floating-slab track with discrete units ... -
Effect of crushable blockouts on a full-scale guardrail system
( Taylor and Francis Ltd. , 2017 , Article)Since the performance of the guardrail system depends in part on the compatibility of vehicle-to-roadside hardware, it is important to improve the interaction of the vehicle with the guardrail system by adding more compliance ...
