Browsing Theme 2: Advances in Infrastructure Sustainability, Renovation, and Monitoring by Title
Now showing items 48-67 of 68
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Potential Utilization of Alternative Construction Materials in Qatar, in lieu of Conventional Washed Sand
( Qatar University Press , 2023 , Conference Paper)Natural sand that has been washed is an essential material used in infrastructure development and construction projects of all sizes. Due to the depletion of natural sand sources in Qatar, there has arisen a need to develop ... -
Preliminary Study on the Use of Reclaimed Asphalt in Public Works Authority Road Projects in the State of Qatar
( Qatar University Press , 2023 , Conference Paper)This paper describes the outcomes of a preliminary study focused on the evaluation of four full-scale pavement sections in which reclaimed asphalt (RAP) was used in partial substitution of virgin aggregates during the ... -
Production of Self-healing Concrete using Gum Arabic for Immobilizing of Bacterial Spores on Sand
( Qatar University Press , 2023 , Conference Paper)This paper studies the feasibility of producing self-healing concrete by immobilization of bacteria on the sand. In this study, the Gum Arabic (Acacia Senegal) was used to immobilize bacterial spores and its nutrient ... -
Recycled Polypropylene Fibres for Reinforcing Cement Mortar under Arid Conditions
( Qatar University Press , 2023 , Conference Paper)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. ... -
Robust Geotechnical Hazard Identification and Assessment for Major Underground Projects in Qatar. Case Study: South of Wakrah Pumping Station and Outfall (SWPSO) Project
( Qatar University Press , 2023 , Conference Paper)The recent global development in geotechnical and geophysical investigation methodologies has continued to improve the possibility of early identification of critical geohazards and mitigation of risks associated with ... -
RSM Analysis for Optimum Content of Graphene Nanoplatelets for 3D-Printed Clay Strength
( Qatar University Press , 2023 , Conference Paper)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 ... -
Self-compacting Backfills using Fly Ash and Dredged Marine Sediments for Public Work Applications
( Qatar University Press , 2023 , Conference Paper)Sediment accumulation at the bottom of ports disrupts maritime activities and disturbs the physicochemical balance of water bodies. In France, the maintenance of the 6500-kilometer long coastline would require the extraction ... -
Significance of GOs, GNPs and CNTs' Nanomaterials on the Mechanical Properties of Cement
( Qatar University Press , 2023 , Conference Paper)This study reports the statistical significance of using Graphene Oxides (GOs), Graphene Nanoplatelets (GNPs) and Carbon Nanotubes (CNTs) on the mechanical properties of cement paste. Samples containing several nanoparticles' ... -
Sustainability Driven Strategy for Achieving Sustainable Infrastructure: Musaimeer Pumping Station and Outfall Project
( Qatar University Press , 2023 , Conference Paper)The increasing emphasis on global sustainability issues such as climate change, loss of biodiversity, deforestation, and water scarcity has provided a strong mandate for the construction industry to incorporate sustainable ... -
Sustainable Alternatives for Concrete by adding Different Types of Natural and Industrial Waste Materials
( Qatar University Press , 2023 , Conference Paper)The construction industry accounts for a high percentage of global energy-related CO2 emissions (37 % in 2021 based on data from United Nations Environmental Program - UNEP) leading to an increasing need for solutions to ... -
Synthesis of Calcium Nitrate Self-Healing Microcapsules Using Aerosol OT Hexane Solution for Cementitious Materials
( Qatar University Press , 2023 , Conference Paper)Calcium nitrate synthesis of in urea-formaldehyde shell has recently been used to produce self-healing microcapsules for construction applications. The original synthesis was based on water-in-oil emulsion with sulfonic ... -
The Effect of Atrium on the Thermal Comfort in Buildings in Hot Arid Zones
( Qatar University Press , 2023 , Conference Paper)The atrium is an open interior space that may be linked to the external environment; it is becoming more and more popular and a key element in the architectural design of many buildings, due to its attractive and symbolic ... -
The Effect of Surface Treatment of Basalt FRP Bars on the Shear Capacity of Oneway High-Strength Concrete Slabs
( Qatar University Press , 2023 , Conference Paper)Corrosion is a common condition encountered by steel reinforcing bars which has a considerable negative impact on the structural integrity of concrete structures. Nowadays, applying anti-corrosive composite materials such ... -
The Use of Demolished Concrete Lumps (DCL) in Rectangular CFSTs Under Flexure
( Qatar University Press , 2023 , Conference Paper)This paper investigates the flexural performance of rectangular concrete-filled steel tube (CFST) beams that are partially incorporated with demolished concrete lumps (DCLs). In total, three CFST beams were prepared and ... -
Theoretical Simulation of Thermal Deformations in Concrete Beams Reinforced with Two Overlapped FRP Bars in Cold Regions
( Qatar University Press , 2023 , Conference Paper)The thermal incompatibility in transverse direction between concrete and fiber reinforced polymer (FRP) bars may cause tensile circumferential cracks within concrete under low temperatures, and consequently, the failure ... -
Top-Down Construction Method: A Case Study For Underpass Structure in Qatar
( Qatar University Press , 2023 , Conference Paper)The Cut and Cover construction method has been applied to build several underpass structures within the expressway programme of the Highway Projects Department, Public Works Authority, Qatar. Booming in the construction ... -
Tunnel Surveying Works: A Technical Challenge of 10 km-long tunnel under the Arabian Gulf-Qatar
( Qatar University Press , 2023 , Conference Paper)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 ... -
Upgrading Existing Infrastructures - The Case Study of Industrial IC Bridge
( Qatar University Press , 2023 , Conference Paper)Doha, the capital of Qatar, has been facing phenomenal growth of vehicular traffic owing to rapid development which has resulted in traffic congestion causing significant rise in travelling time in some areas. To mitigate ... -
Utilisation of Waste Plastics Admix with Laterite Soil for Production of Road Pavement Interlocking Blocks
( Qatar University Press , 2023 , Conference Paper)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 ... -
Utilization of Recycled Materials in Infrastructure Projects: Ashghal Approach
( Qatar University Press , 2023 , Conference Paper)As a result of numerous infrastructure projects which have taken place in Qatar in the last decade, there has been an unprecedented increase in demand for construction materials. In addition, the huge program of infrastructure ...