Civil and Environmental Engineering: Recent submissions
Now showing items 661-680 of 860
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Acoustic absorption analysis and modeling of asphalt mixtures
( ASTM International , 2019 , Article)Highway traffic noise is a major environmental issue all over the world. This is particularly annoying to residents who live nearby major transportation corridors. Noise pollution adversely affects the quality of their ... -
Evaluation of short-term aging protocol for asphalt mixtures
( MDPI AG , 2019 , Article)Asphalt mixtures are subjected to short-term aging during the production, placement, and compaction processes. Proper evaluation of asphalt pavement performance relies on the accurate characterization of asphalt mixtures ... -
Evaluation of forward osmosis as a pretreatment process for multi stage flash seawater desalination
( Elsevier B.V. , 2019 , Article)The present study evaluates the feasibility of applying forward osmosis (FO) process for the pretreatment of feed solution to a Multi Stage Flash (MSF) desalination plant. For the first time, real brine reject and real ... -
Internal transverse reinforcement configuration effect of EB/NSE-FRCM shear strengthening of RC deep beams
( Elsevier Ltd , 2019 , Article)This paper presents an experimental study carried out on the structural performance of shear-critical reinforced concrete (RC) deep beams internally reinforced with two different stirrups configurations; i.e. aligned and ... -
Hydration, strength, and shrinkage of cementitious materials mixed with simulated desalination brine
( ASTM International , 2019 , Article)The process of desalination results in the production of a hypersaline waste by-product known as reject brine. In some locations, this reject brine is dumped back into the ocean, which has potentially detrimental effects ... -
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 ... -
Investigation of the Effect of the Force-Frequency on the Behaviour of a New Viscous Damper for Railway Applications
( Qatar Univesrity Press , 2020 , Conference)The primary purpose of this work is to experimentally investigate the damping coefficient of a viscous damper, intended to be used in railway applications to reduce noise emission. The viscous shock absorber used in this ... -
Concrete Hydration Model Characterization Using Evolutionary Optimization
( Qatar Univesrity Press , 2020 , Conference)Pile thermal integrity assessment by means of temperature measurement has received increasing attention in recent years. The thermal integrity testing method measures temperature changes during the concrete curing process; ... -
Development of Warm Mix Asphalt with the Aid of Microstructural Characterization
( Qatar Univesrity Press , 2020 , Conference)The polymer-modified asphalt (PMA) reveals different types of advantageous properties depending on the type of polymer. However, one of the unwanted changes in PMA is the required higher temperature for mixing and compaction. ... -
An Artificial Intelligence Approach to Estimate Travel Time along Public Transportation Bus Lines
( Qatar Univesrity Press , 2020 , Conference)Public transportation sectors have played significant roles in accommodating passengers and commodities efficiently and effectively. The modes of public transportation often follow pre-defined operation schedules and routes. ... -
Evaluating the Operational Impact of Left-Turn Exclusive Number of Lanes: A Case Study from Qatar
( Qatar Univesrity Press , 2020 , Conference)Left-turning movements can significantly reduce the overall capacity of signalized intersections due to the queueing built up. Intersections with heavy left-turning volumes tend to use multiple lanes to accommodate left-turn ... -
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 ... -
Effects of Using Seawater and Recycled Coarse Aggregates on Plain Concrete Characteristics
( Qatar Univesrity Press , 2020 , Conference)Using seawater and/or recycled coarse aggregates (RCA) for concrete mixing is deemed advantageous from a sustainability perspective. This paper reports on the results of an experimental study on fresh and hardened properties ... -
Verification of ACI- 549 Code for Flexural Strengthening of Reinforced Concrete Beams Using FRCM
( Qatar Univesrity Press , 2020 , Conference)This paper presents an analytical study to verify the ACI 549-4R-16 code for experimentally tested Reinforced Concrete (RC) beams, which were strengthened to enhance the flexural capacity using Fiber-Reinforced Cementitious ... -
Near Surface Embedded Application for FRCM Strengthening of RC Beams in Flexure
( Qatar Univesrity Press , 2020 , Conference)In this paper, the efficacy of a recent strengthening technique, referred to as Near Surface Embedded (NSE), has been investigated for flexural strengthening of Reinforced Concrete (RC) beams using Fabric Reinforced ... -
High and Ultra-high Performance Concretes: A Solution to Reinforced Concrete Durability under Harsh Climate of Arabian Gulf
( Qatar Univesrity Press , 2020 , Conference)Reinforced concrete (RC) infrastructure in the Arabian Gulf region deteriorates under severe environmental conditions after only short service life. To overcome this problem, it is imperative to employ high-quality concretes ... -
Long-Term Cost Performance of Corrosion-Resistant Reinforcements in Structural Concrete
( Qatar Univesrity Press , 2020 , Conference)Corrosion, which leads to the premature deterioration of reinforced concrete (RC) structures, is increasingly an issue of global concern. Accordingly, corrosion-resistant materials have emerged as alternative reinforcement ... -
Effect of Alkaline Activators on the Mechanical Properties of Geopolymer Mortar
( Qatar Univesrity Press , 2020 , Conference)"Geopolymerization is a process where silica and alumina rich source materials turn into excellent binding materials by the aid of alkali solutions. Materials such as fly ash are by-products in energy power plants. Fly ... -
Utilizing Steel Slag in the Removal of Suspended Solids from Dewatered Construction Water
( Qatar Univesrity Press , 2020 , Conference)Construction dewatering is an operation used to remove shallow groundwater that infiltrates construction sites. After recovering this water from the construction sites, the water is either discharged to the sea, injected ... -
Predicted and Back-calculated Coefficients of Permeability of Randomly Fractured Rock Mass: A Case Study
( Qatar Univesrity Press , 2020 , Conference)This paper presents the discrepancy between the coefficients of permeability measured for randomly fractured limestone using field falling-head tests and that back-calculated for the same rock mass based on the actual ...
