تصفح Civil Engineering حسب العنوان

A Comparative Traffic Noise Study between Signalized Intersections and Roundabouts

Rouf, Khadija Bint Abdur (2020 , Master Thesis)

This study presents a comparative traffic noise study done between signals and roundabouts in Doha, Qatar. Traffic noise and volume data were collected at four signals (two 2-lane and two 3-lane) and four roundabouts ...

APPLICATION OF STEEL REINFORCED COMPOSITES FOR STRENGTHENING OF REINFORCED CONCRETE BEAMS AND COLUMNS: EXPERIMENTAL, ANALYTICAL, NUMERICAL, AND MACHINE LEARNING BASED STUDIES

WAKJIRA, TADESSE GEMEDA (2022 , Dissertation)

The use of steel reinforced composites (SRC) has emerged as a cost-effective and promising solution for the strengthening of reinforced concrete (RC) structures. The strengthening system in SRC comprises a unidirectional ...

Assessing the Influence of Power Paradox on Driving Behavior and Traffic Safety in The State of Qatar.

Nakhleh, Ammar Jamal (2024 , Master Thesis)

Aggressive driving is a significant contributor to traffic accidents. There's both anecdotal and scientific evidence suggesting that a vehicle's size and price might influence the behavior of its driver. This study examined ...

Automated Defect Detection Tool For Sewer Pipelines

Kabashi Elamin, Mazen (2017 , Master Thesis)

In sewer networks, the economic effects and costs that result from a pipeline break are rising sharply. In Qatar, majority of the sewer network pipelines were installed in the last 20 years and are currently in poor condition ...

BASALT FRP BARS: DURABILITY AND APPLICATIONS IN REINFORCED CONCRETE ELEMENTS

ALHRANI, ABATHAR ABDULKARIM HASSON (2023 , Dissertation)

This dissertation is designed to examine the durability characteristics of basalt fiber reinforced polymers (BFRP) bars under severe environmental conditions that are usually encountered in civil engineering structures. ...

Bond Durability of Basalt Fiber Reinforced Polymer Bars Embedded in Fiber Reinforced Concrete under the Effect of Saline Environment and Elevated Temperatures

Taha, Alaa Hasan (2019 , Master Thesis)

Fiber-reinforced polymer (FRP) is promising to be an alternative solution for conventional steel to prevent the fast infrastructures' deterioration. Moreover, FRPs are utilized by the construction industry to improve the ...

Capacity Analysis of Single-Lane Roundabouts in The State of Qatar

Albeitjali, Naeem Nasser Naim (2020 , Master Thesis)

This master thesis presents capacity analysis of Single-Lane roundabouts in the State of Qatar. The aim of this paper is to update Qatar highway manual, by developing a new capacity model using empirical data collected ...

Characteristics of Parallel On-Street Parking in Qatar

Badran, Ali Kamal (2018 , Master Thesis)

One of the main reasons for traffic congestion is the existence of on-street parking on the side of the road. The purpose of this study is to identify the impact of parallel on-street parking on the traffic flow movement ...

Condition Assessment Models for Sewer Pipelines

Alkadour, Firas Amer Abdulrazak (2017 , Master Thesis)

Underground pipeline system is a complex infrastructure system that has significant impact on social, environmental and economic aspects. Sewer pipeline networks are considered to be an extremely expensive asset. This study ...

Development of Variable Message Sings Strategies for Traffic Management at Work Zones

Almallah, Mustafa Suhail Sulaiman (2020 , Master Thesis)

Work zones are defined as road sections of which different activities such as road construction or maintenance take place. In most work zones, road alignments are different than the pre-work periods. Therefore, speed limits ...

Discrete Element Modeling Of Railroad Ballast Under Simulated Train Loading

Alabbasi, Yahia Abdulnaser (2019 , Master Thesis)

Ballasted tracks have been widely used in many countries around the world. Ballast layer is the main element in ballasted track. After service, ballast aggregates degrade and deform. Periodical maintenance for ballast ...

Drained residual shear strength of fine-grained soils and soil-solid interfaces at low to medium effective normal stresses: Analyses and Applications

Rabie, Khaled H. (2016 , Master Thesis)

A laboratory research program was undertaken to study the large-strain shear strength characteristics of fine-grained soils under low effective normal stresses (~3 to 6 kPa). Soils that cover a wide range of plasticity and ...

Effect of Curing on the Deterioration of RC Structures in the Arabian Gulf

Salim, Soheb Mullappilly (2020 , Master Thesis)

The deterioration of concrete in the Arabian Gulf is responsible for reduced service life of reinforced concrete structures. The reasons for degradation are attributed to the harsh environmental conditions and the ...

The effect of water table fluctuation and hydrogeochemical properties on NAPLs natural attenuation

Ismail, Reem Elfatih (2023 , Dissertation)

Human activities have recently resulted in the degradation and contamination of groundwater. Petroleum spills, such as crude oil, gasoline, and diesel fuel, are a major source of groundwater contamination, especially along ...

Engineering A Fertilizing Draw Solution For Irrigation Using Forward Osmosis / Reverse Osmosis Hybrid System

Hafiz, Mhd Ammar Nabil (2019 , Master Thesis)

Large volumes of fresh water are consumed in the human’s daily activities, producing large volumes of highly contaminated wastewater which exhibits a major environmental problem. Wastewater is treated using multiple ...

An Enhanced Electrocoagulation Process for The Removal Of Fe and Mn from Municipal Wastewater Using Dielectrophoresis (DEP)

Almukdad, Abdulkarim Ibrahim (2020 , Master Thesis)

This study evaluates the removal efficiency of Fe and Mn from primary treated municipal wastewater using new electrodes configuration in electrocoagulation (EC) process. The used electrodes configuration generates a ...