QU Conference Proceedings: المرسلات الحديثة
السجلات المعروضة 221 -- 240 من 355
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Modelling the Severity of Plastic Shrinkage in Cementitious Materials
( Qatar Univesrity Press , 2020 , Conference)"Plastic shrinkage cracking in cement-based materials occurs between the mixing and the final setting of the mixture, where rapid evaporation of the mixed water is the main cause behind the phenomenon. The induced cracks ... -
Novel Method for Assessing Moisture Damage in Asphalt Mixtures
( Qatar Univesrity Press , 2020 , Conference)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)"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 ... -
Recycled Concrete Used in Subbase in Potential Use for Road Base and Cement Bounded Material (CBM)
( Qatar Univesrity Press , 2020 , Conference)"Structure life cycle and economic developments in Qatar can lead to reconstruction as well as demolition of structures such as buildings and roads. One of the main wastes from demolition work is concrete and reinforced ... -
Characterization of Asphalt Mixtures in Qatar
( Qatar Univesrity Press , 2020 , Conference)The State of Qatar went through a massive road construction program in the last decade as part of the ongoing development of its infrastructure and road transport network. Construction of roads in Qatar generally utilizes ... -
Application of Vehicle Restraint Systems (VRSs) in the State of Qatar: A Case Study from Northern Roads
( Qatar Univesrity Press , 2020 , Conference)Recent developments within Infrastructural Road Safety and especially in the Sector of Vehicle Restraint Systems (VRS) have enabled Transport Authorities to significantly reduce road fatalities and severe injuries. ... -
Determination of Temperature Zoning for the Great Lakes Region of Africa Based on Superpave System
( Qatar Univesrity Press , 2020 , Conference)"Majority of the countries in the Great Lakes region of Africa still rely on the traditional Penetration grading approach for characterizing asphalt binder, as opposed to the more recent and reliable approach of SuperPave ... -
Compressive Strength and Hydration of Ravennagrass Baggase Ash Concrete
( Qatar Univesrity Press , 2020 , Conference)The paper presents the findings of the effect of revennagrass baggase ash concrete compressive strength using compression machine and hydration behavior with the aid of non-contact electrical resistivity measurement device. ... -
Challenges for the Use of Local Materials in Unbound Road Subbase in Qatar
( Qatar Univesrity Press , 2020 , Conference)Current practice in Qatar is to blend local limestone with dune sand for use in unbound pavement applications. Dune sand is used to improve the properties of fine aggregate and compliance with the QCS 2014 requirements of ... -
Use of Crumb Rubber Modified Binders and Asphalt Mixtures in Public Works Authority Road Projects - State of Qatar
( Qatar Univesrity Press , 2020 , Conference)This paper illustrates the approach adopted by the Public Works Authority (Ashghal) of the State of Qatar for the widespread implementation in road projects of paving technologies related to the use of crumb rubber modified ... -
Innovation in Road Construction Industry: An Analysis of Different Case Studies
( Qatar Univesrity Press , 2020 , Conference)Process improvement and innovation in the field of road construction sector offers significant community and industry benefits, by making an important contribution in economic growth and enhancing the quality of life. ... -
Test Procedures for Advanced Characterization of Bituminous Binders Employed for Pavement Construction in Public Works Authority Road Projects - State of Qatar
( Qatar Univesrity Press , 2020 , Conference)This paper illustrates the approach adopted by the Public Works Authority (Ashghal) of the State of Qatar for the advanced chemical and rheological characterization of bituminous binders (both neat and modified). The ... -
Development and Performance of Cement Bound Materials in Road Pavements
( Qatar Univesrity Press , 2020 , Conference)The use of cement bound materials (CBMs) for road construction in Qatar is relatively new. CBM improves the structural capacity and durability of pavement, but considerations should be made to the setting time and strength ... -
A Study on the Default Supplemental Adjustment Factors of Progression Adjustment Factor Formula under Non-Lane Based Traffic Condition
( Qatar Univesrity Press , 2020 , Conference)A mathematical expression of supplemental adjustment factor (fPA) has provided a way to estimate Progression Adjustment Factor (P.F.) more accurately as the P.F. relies on the fPA value. The mathematical formula of fPA ... -
Evaluation of Bond Strength Between Carbon Fiber Reinforced Polymer (CFRP) Composites with Modified Epoxy Resins and Concrete
( Qatar Univesrity Press , 2020 , Conference)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 ... -
Optimizing the Thermal Resistance of Concrete Using The Palm Tree Fronds Fibers
( Qatar Univesrity Press , 2020 , Conference)In the past few years, the issue of global warming has become increasingly visible. Record high as well as record low temperatures are being broken worldwide. Snow is melting in the poles and less sunrays are being reflected ... -
Integrated Accident Resilience Framework (IARF) – A Theoretical Approach Using Spatial and Statistical Analysis
( Qatar Univesrity Press , 2020 , Conference)Throughout the world, road accidents have become a nightmare for any local government. Data shows that every 24 seconds someone dies on the road (WHO, 2018). Generally, there are multiple factors causing road accidents ... -
In-Pavement Fiber Bragg Grating Sensor for Vehicle Counting
( Qatar Univesrity Press , 2020 , Conference)Traffic volume studies are conducted to determine the number, movements, and classifications of roadway vehicles at a given location and period. Typically, there are two methods for conducting traffic volume studies: ... -
Advanced Freeze-Thaw Assessment of Internally Integrated Concrete with Sodium Acetate
( Qatar Univesrity Press , 2020 , Conference)A new line of research is presented in this study where sodium acetate is used as a protective material for concrete. A newly developed freeze-thaw method that depends on the alteration of temperature and humidity is ... -
Dosage Optimization of Polypropylene Fiber for Strength Enhancement of Cementitious Composites
( Qatar Univesrity Press , 2020 , Conference)"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 ...
