QU Conference Proceedings: Recent submissions
Now showing items 141-160 of 355
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Ashghal Quality Assurance & Quality Control system - QSD Role in Monitoring & Reporting the Quality Performance in Ashghal Projects
( Qatar University Press , 2023 , Conference)Ashghal has established a robust system of quality control and quality assurance for all projects constructed by Ashghal. Ashghal Departments are supervising a sophisticated system of quality control and quality assurance ... -
Launching a 148m-Long Tunnel Boring Machine from a 15m-Inner Diameter Shaft
( Qatar University Press , 2023 , Conference)The city of Doha has grown and expanded rapidly in the last 20 years, but this growth has strained the country's infrastructure, including its aging sewerage system and treatment facilities. ASHGHAL has therefore launched ... -
Utilisation of Waste Plastics Admix with Laterite Soil for Production of Road Pavement Interlocking Blocks
( Qatar University Press , 2023 , Conference)Plastic wastes are non-biodegradable and hence pile up in refuse dumps and streets constituting an eyesore and menace to the environment. Some of them end up in drainages and waterways where they block water passages ... -
Planning and Implementing of Effective Enabling Works for a Successful TBM Tunnelling Project
( Qatar University Press , 2023 , Conference)The outfall tunnel, which forms part of the Musaimer Pump Station and Outfall project (MPSO), is a 10.2 km long subsea tunnel that extends from the south coast of Doha, starting onshore, and continues under the Arabian ... -
Modeling Asphalt Pavement Frictional Properties using Different Machine Learning Algorithms
( Qatar University Press , 2023 , Conference)The objective of this work is to use some machine learning algorithms and test its efficiency in developing models to predict Locked Wheel Skid Trailer (LWST) values from Dynamic Friction Tester (DFT) and Circular Texture ... -
A Comparison between Natural Pozzolana and Fly Ash Replacements on the Mechanical Properties of Concrete
( Qatar University Press , 2023 , Conference)This study investigates the effect of Natural Pozzolana (NP) and Fly Ash (FA) substitutes on concrete's mechanical and microstructural properties. Mixes containing 10 - 50 % cement substitute ratios were prepared and tested ... -
Parametric Optimization of RC Beams Strengthened with FRCM Using FE Modelling and Response Surface Methodology
( Qatar University Press , 2023 , Conference)This study focuses on the numerical and statistical analyses to predict the mid-span moment capacity of RC beams strengthened with fabric reinforcement cementitious mortar (FRCM) laminate. A finite element model (FEM) has ... -
A Review on the Performance of Bored Pile Foundations through Instrumented Pile Load Tests in Qatar
( Qatar University Press , 2023 , Conference)The level of infrastructure development Qatar has accomplished over the past 10 years has not been reached by any other country and this pace is expected to continue to achieve Qatar's 2030 Vision. High-rise buildings and ... -
Comparison of Geotechnical Investigation Results with Encountered Ground Conditions during Subsea Tunnelling in Qatar
( Qatar University Press , 2023 , Conference)Starting in 2018, Musaimeer Pumping Station and Outfall Project (MPSO) was constructed to manage ground and storm water received from 270 km2 area of southern Doha, Qatar. The project consists of a pumping station, subsea ... -
Characterisation of Sewage Sludge and Municipal Solid Waste for Use as Cementitious Materials
( Qatar University Press , 2023 , Conference)Volumes of accumulated solid waste materials of sewage sludge (SS) and municipal solid waste (MSW) in Qatar continue to increase annually with a potentially negative impact on the environment. This paper presents an ... -
Numerical Study on the Pullout Behavior of Steel Fibers in Cement-Based Composites
( Qatar University Press , 2023 , Conference)The interaction between steel fiber and surrounding cement-based matrix and concrete materials is crucial in the behavior of Steel Fiber-Reinforced Concrete (SFRC). This interaction is generally measured through a single ... -
Tunnel Surveying Works: A Technical Challenge of 10 km-long tunnel under the Arabian Gulf-Qatar
( Qatar University Press , 2023 , Conference)The Musaimeer Pump Station & Outfall Tunnel project (MPSO) was constructed as one of the longest Outfall tunnels in the World with a total length of 10.189m and at the same time being the longest undersea tunnel in the ... -
Analysis of Factors Affecting the Performance of Dynamic Compaction Technique: A Study of Coastal Area of Eastern Province in Saudi Arabia
( Qatar University Press , 2023 , Conference)Coastal areas of the Eastern Province of Saudi Arabia have soil with low bearing capacity due to saturation with water, high contents of salt and inclusion of organic materials. The dynamic compaction (DC) technique, which ... -
Modeling Thermal Conductivity, Thermal Diffusivity and Specific Heat of Asphalt Concrete Using Beta Regression and Mixture Volumetrics
( Qatar University Press , 2023 , Conference)The main objective of this paper is to develop predictive models using Beta regression for laboratory-prepared hot mix asphalt (HMA) specimens' thermal properties, including thermal conductivity (TC), thermal diffusivity ... -
Ashghal Guidelines for the Evaluation and Repair of Sinkholes
( Qatar University Press , 2023 , Conference)Sinkholes are a common and recurring problem with potential safety risks to road users and authorities. A sinkhole is a void in the ground caused by natural and/or manmade activities, and mainly associated with carbonate ... -
Corrected Rock Fracture Parameters Applied to Qatari Rock Masses
( Qatar University Press , 2023 , Conference)This paper is the continuation of the author's previous publications and an attempt to shed light on some of the presented propositions, therein. In his previous work, the author introduced a novel parameter for borehole ... -
RSM Analysis for Optimum Content of Graphene Nanoplatelets for 3D-Printed Clay Strength
( Qatar University Press , 2023 , Conference)This study applies Response Surface Methodologies (RSM) methods to maximize 3D-Printed clay mechanical properties. Mixes containing different Graphene Nanoplatelets (GNPs) contents were printed and tested in compression ... -
Recycled Polypropylene Fibres for Reinforcing Cement Mortar under Arid Conditions
( Qatar University Press , 2023 , Conference)Concreting in arid environment is a delicate operation, due to many problems, such as the premature evaporation of mixing water, which affects the material consistency and the shrinkage cracking which threatens its durability. ... -
Influence of Adding Demolition Wastes on the Mechanical Properties of Concrete in Sultanate of Oman
( Qatar University Press , 2023 , Conference)Nowadays the global trend in construction industry is to reduce the cost, saving energy and preserving the environment. Using other industries' waste material as a construction material is one of several methods followed ... -
A Static and Free Vibration Analysis of Porous Functionally Graded Beams
( Qatar University Press , 2023 , Conference)In this work, the static and free vibration analysis of functionally graded (FG) porous beams is investigated using a new higher-order shear deformation model (HSD). The porosity that develops naturally during the fabrication ...
