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Now showing items 31-40 of 43
Innovation in Road Construction Industry: An Analysis of Different Case Studies
(
Qatar Univesrity Press
, 2020 , Conference Paper)
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. ...
Mechanical and Durability Characteristics of Roller Compacted Geopolymer Concrete Using Reclaimed Asphalt Pavement
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Every year a large quantity of reclaimed asphalt pavement (RAP) is generated in
the USA. Utilization of RAP can solve the storage problem, prevent environmental
pollution and reduce construction costs. This study focuses ...
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 Paper)
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 ...
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 ...
Improving Concrete Durability by Using Optimized Aggregate Gradation and Reducing Cement Content
(
Qatar Univesrity Press
, 2020 , Conference Paper)
"This study evaluated the effects of (1) reducing the cementitious content, (2) the use of
optimized aggregate gradation (OAG) technique, and (3) the use of Portland limestone
cement (Type IL) in Florida Class I pavement ...
Reflective Crack Mitigation Using AST Interlayer over Soil-Cement Base for Flexible Pavements
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Flexible pavement over soil-cement base deteriorates over time due to reflective
cracking caused by the shrinkage of such base. The propagation of the reflective cracks
in overlaying hot mix asphalt (HMA) could be mitigated ...
Emerging Transit Technology: Implementing an Urban Gondola System over Al Corniche, Doha, Qatar - A Cost Estimation Study
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Urban gondolas are a type of driverless transit vehicles, which are increasingly drawing
the attention as a viable mass transit alternative in urban environments and touristic
areas. The system is distinctive with high ...
In-Pavement Fiber Bragg Grating Sensor for Vehicle Counting
(
Qatar Univesrity Press
, 2020 , Conference Paper)
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: ...
Challenges for the Use of Local Materials in Unbound Road Subbase in Qatar
(
Qatar Univesrity Press
, 2020 , Conference Paper)
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 ...
Development and Performance of Cement Bound Materials in Road Pavements
(
Qatar Univesrity Press
, 2020 , Conference Paper)
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 ...