Browsing Civil and Environmental Engineering by Title
Now showing items 109-128 of 778
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Back-analysis of sprayed concrete lined (SCL) tunnel junctions at Liverpool Street Crossrail station
( Elsevier , 2023 , Article)Sprayed concrete linings (SCL) offer a versatile method of tunnel construction, particularly in regard to forming junctions since the lining acts as a shell structure which can redistribute the stresses around the opening ... -
Bearing Capacity and Settlement of Skirted Shallow Foundations on Sand
( American Society of Civil Engineers (ASCE) , 2013 , Article)The behavior of axially loaded skirted shallow foundations resting on sand was studied using an extensive numerical analysis. Surface, pier, and skirted square foundations resting on sand with different shear strength ... -
Behavior of artificially corroded RC beams strengthened with CFRP and hybrid CFRP-GFRP laminates
( Elsevier , 2022 , Article)Steel corrosion is a major degradation factor for the reinforced concrete (RC) infrastructure and necessitates a costly repair after short service life. Predicting the strength of corroded and retrofitted structural elements ... -
Behaviour of fibre reinforced concrete using steel slag coarse aggregate produced in Qatar
( EDP Sciences , 2017 , Conference Paper)The state of Qatar suffers from the shortage of natural resources needed for concrete production. Therefore, it is essential to investigate the feasibility of using by-product recycled materials as aggregates to maintain ... -
BIM-based facility management models for existing buildings
( Kuwait University , 2021 , Article)Building Information Modeling (BIM) is mainly used for the design and construction of new buildings. However, one of the main challenges facing BIM adoption for existing or old buildings constructed without consideration ... -
Bio-Based Self-Healing Concrete for Sustainable and Durable Concrete Infrastructure
( Qatar University Press , 2023 , Conference Paper)In this study, bio-self-healing concrete was manufactured using a natural phenomenon called microbial-induced calcium carbonate precipitation (MICP). The bacillus cereus bacteria isolated from Qatari soil was used for this ... -
Biocrude oil production from a self-settling marine cyanobacterium, Chroococcidiopsis sp., using a biorefinery approach
( Elsevier , 2023 , Article)Although the whole microalgal biomass is typically used as a feedstock for hydrothermal liquefaction (HTL), the conversion of a primary metabolite (i.e., carbohydrate) to biocrude is very low. In this study, a self-settling ... -
Biodegradation Kinetics of Benzene and Naphthalene in the Vadose and Saturated Zones of a (Semi)-Arid Saline Coastal Soil Environment
( Hindawi Limited , 2019 , Article)Biodegradation is a key process for the remediation of sites contaminated by petroleum hydrocarbons (PHCs), but this process is not well known for the (semi)-Arid coastal environments where saline conditions and continuous ... -
Bioinspired modeling and biogeography-based optimization of electrocoagulation parameters for enhanced heavy metal removal
( Elsevier , 2022 , Article)Electrocoagulation is an effective wastewater treatment process for the removal of heavy metals. This study focuses on deriving optimal conditions for removing heavy metals, viz. Lead (Pb), Cobalt (Co), and Manganese (Mn) ... -
Biological anodic oxidation and cathodic reduction reactions for improved bioelectrochemical treatment of petroleum refinery wastewater
( Elsevier , 2018 , Article)Bioelectrochemical systems (BESs) were evaluated for the bioelectrochemical treatment (BET) of petroleum refinery wastewater (PRW) by applying mild electrochemical potential in the range of 400-1000 mV on a single chamber ... -
Biolubricant Synthesis by Additization and Chemical Modification from Lipid-Rich Brackish Coelastrella sp. Using a Biorefinery Approach
( American Chemical Society , 2023 , Article)With a sizable market share and widespread use in automotive and industrial applications, biolubricants are produced from the oils of terrestrial plants that have undergone chemical modification or additive addition. ... -
Blind identification of the Millikan Library from earthquake data considering soil-structure interaction
( John Wiley & Sons, Ltd. , 2015 , Article)The Robert A. Millikan Library is a reinforced concrete building with a basement level and nine stories above the ground. Located on the campus of California Institute of Technology (Caltech) in Pasadena California, it is ... -
Blockchain and its Potential in the Digitization of Land and Real Estate Property Records
( Qatar University Press , 2023 , Conference Paper)A blockchain, is a decentralized digital ledger that is distributed across multiple computers, recording transactions in a way that cannot be altered without the consent of the network and the alteration of all subsequent ... -
Blue collar laborers’ travel pattern recognition: Machine learning classifier approach
( Elsevier , 2021 , Article)This paper proposes a pattern recognition model to develop clusters of homogenous activities for blue-collar workers in the State of Qatar. The activity-based data from the travel diary of 1051 blue-collar workers collected ... -
Bond and shear-strengthening performance of FRCM composites
( ISEC Press , 2019 , Conference Paper)This paper is aimed at studying the bond and shear-strengthening performance of fabric reinforced cementitious matrix (FRCM) systems. Three FRCM systems were compared, namely, polyparaphenylene benzobisoxazole (PBO)-FRCM, ... -
Bond characteristics of different FRCM systems
( Elsevier , 2018 , Article)© 2018 Elsevier Ltd Fabric-reinforced cementitious matrix (FRCM) composites are usually applied on the concrete surface for the purpose of strengthening reinforced concrete structures. The efficiency of FRCM as a strengthening ... -
Bond durability and service life prediction of BFRP bars to steel FRC under aggressive environmental conditions
( Elsevier , 2021 , Article)This study presents an experimental investigation on the bond durability of helically wrapped basalt fiber reinforced polymer (BFRP) bars embedded in plain and steel fiber reinforced concrete (SFRC) under the combined ... -
Bond durability of basalt FRP bars to fiber reinforced concrete in a saline environment
( Elsevier , 2020 , Article)This study investigates the influence of basalt fiber reinforced concrete (BFRC) on the bond durability of helically wrapped basalt fiber reinforced polymers (HWBFRP) bars subjected to harsh saline environmental conditions. ... -
Bond durability of sand coated and ribbed basalt FRP bars embedded in high-strength concrete
( Elsevier , 2023 , Article)This study examines the bond durability behavior of basalt fiber-reinforced polymer (BFRP) bars in harsh environments. The effects of surface treatment, concrete compressive strength, exposure type, and period of exposure ... -
Bond durability performance of sand-coated BFRP bars in high-strength fiber reinforced concrete
( Elsevier , 2023 , Article)The ever-increasing utilization of fiber-reinforced polymer (FRP) bars has led to a surge in research regarding their bonding properties with concrete. In this study, the bond durability behavior between high-strength ...