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American University in Cairo

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Full-Text Articles in Construction Engineering

Inspect: Intelligent Node-Based System For Ifc Processing And Evaluation, With Conversational Tool Support —Llmassisted Natural Language Ifc Querying, Basel Abdelshaheid Feb 2026

Inspect: Intelligent Node-Based System For Ifc Processing And Evaluation, With Conversational Tool Support —Llmassisted Natural Language Ifc Querying, Basel Abdelshaheid

Theses and Dissertations

Industry Foundation Classes (IFC) enables the open exchange of Building Information Models, yet effective validation of real-world IFC deliveries remains challenging. Project models frequently contain incomplete, inconsistent, or incorrectly exported metadata, and explicit IFC relationships are often missing or degraded during conversion from proprietary formats. Many validation questions are inherently spatial, including connectivity, containment, proximity, and clashes, and therefore cannot be answered reliably from properties alone. As a result, federated model validation is often slow, fragmented across tools, and dependent on specialized IFC expertise.

This challenge is increasingly important for coordination, quality assurance, and information management across disciplines and lifecycle …


Utilization Of Plastic Waste In The Concrete Industry, Nancy Abdelmoneim Sakr Feb 2026

Utilization Of Plastic Waste In The Concrete Industry, Nancy Abdelmoneim Sakr

Theses and Dissertations

Plastic recycling has emerged as a crucial strategy that aligns with environmental, social and economic sustainability indicators. Currently, substantial volumes of plastic waste are either deposited in landfills or incinerated, neglecting the potential to harness its embodied energy and the energy consumed for producing virgin materials. A key advantage of plastic lies in its promising mechanical properties. Concrete mix design is fundamental to a wide range of construction applications, including brick walls, reinforced concrete slabs and concrete pavements. Despite the adoption of recycled plastic in construction materials in various countries, its widespread implementation remains limited. This is primarily due to …


A Machine Learning Framework For Predicting Fabrication Hours For Industrial Steel Structure Projects, Dalia Ibrahim Jun 2024

A Machine Learning Framework For Predicting Fabrication Hours For Industrial Steel Structure Projects, Dalia Ibrahim

Theses and Dissertations

Construction projects are considered high risk projects especially due to their required large capital making them require extreme attention in estimation as overestimating a project will lead to losing bids and underestimating them will lead to incurring more costs than budgeted resulting in losses. However, estimators are often faced with very tight timelines to finish their estimates leading them to primarily rely on their experience disregarding some crucial factors resulting in inaccurate estimates. In the steel structures industry, the steel fabrication phase accounts for 30 to 40% of the overall project cost; in addition, the steel industry is labor driven; …


Towards A Sustainable Model For Finishing Materials In Mixed-Use Gated Community Buildings, Dina Mohamed Shawky Ismail Jan 2024

Towards A Sustainable Model For Finishing Materials In Mixed-Use Gated Community Buildings, Dina Mohamed Shawky Ismail

Theses and Dissertations

ABSTRACT

The concept of sustainability has recently become widespread, and most industries attempt to fulfill all requirements to qualify as sustainable. The construction industry is a prime polluting activity that contributes significantly to carbon dioxide (CO2) emissions. Moreover, use of specific finishing materials such as paint and coatings adds to the emission of volatile organic compounds (VOC) which are extremely harmful to the human health. Hence, proper choice of building and finishing materials can potentially reduce such emissions and takes the building a step closer to qualify a building as a sustainable one. While the construction industry in …


Building Envelope Retrofits For Achieving Thermal Comfort In Naturally Ventilated Buildings In Future Climates: A Case Study Of Social Housing In Egypt, Donna Nader Kamel Ebeid Jun 2023

Building Envelope Retrofits For Achieving Thermal Comfort In Naturally Ventilated Buildings In Future Climates: A Case Study Of Social Housing In Egypt, Donna Nader Kamel Ebeid

Theses and Dissertations

Envelope thermal insulation has a significant impact on a scale from global to individual interest. It contributes to indoor thermal comfort, provides economic benefit through reduced electricity bills, increases energy efficiency of buildings through reduced energy consumption, and protects against the change in Earth’s climate through reduced greenhouse gas emissions. In 2021, building operations accounted for 30% of global energy consumption, 27% of annual global CO2 emissions and 35% of building energy use accounted for electricity consumption which is used to create comfortable indoor living conditions. In Egypt, electricity consumption in residential sector has been steadily increasing, among other …


Framework For Enhanced Applicability Of The Egyptian Public Procurement Law To International Administrative Construction Contracts, Amr Abu Helw Dec 2021

Framework For Enhanced Applicability Of The Egyptian Public Procurement Law To International Administrative Construction Contracts, Amr Abu Helw

Theses and Dissertations

Local governments and public authorities conclude contracts for the purpose of acquisition of goods, delivery of services and construction of public facilities like bridges, infrastructures and public buildings. A public contract is an agreement to perform particular tasks financed by government funds to the benefit of the whole community. Private entities and corporations are subject to stricter standards in their dealings with the government than in private transactions. Conversely, the government must deal fairly and equitably with those who it contracted with to achieve successful implementation of the projects. On October 3, 2018, a new Egyptian public procurement law, namely, …


Assessment Of Carbon Dioxide Emission And Its Impact On High-Rise Mixed-Use Buildings In Egypt, Ahmed Salah Hamza Jun 2021

Assessment Of Carbon Dioxide Emission And Its Impact On High-Rise Mixed-Use Buildings In Egypt, Ahmed Salah Hamza

Theses and Dissertations

With Egypt's vision of 2030 focusing on sustainable development with a true emphasis on Carbon Dioxide (CO2) emission reduction in the newly built cities and high-rise buildings, efforts are exerted on various levels towards accomplishing the vision’s goals. This is achieved through multiple tools and models associated with aiding the reduction of carbon emissions, yet not a clear one was introduced for the mixed-use buildings in Egypt.

Through this work, a significant gap was identified with respect to high-rise buildings carbon emission assessment in Egypt. This was a main driving force for this work in an attempt to …


Improving The Economic Viability And Flexural Strength Performance Of Dowel Laminated Casaurina Glauca Patchwood, Hesham Elseginy Sep 2020

Improving The Economic Viability And Flexural Strength Performance Of Dowel Laminated Casaurina Glauca Patchwood, Hesham Elseginy

Theses and Dissertations

The purpose of this study was to determine the strength of local casuarina glauca patchwood under artificial weathering presenting the changes of strength of wood along fibers. The study involved wood of similar density - half factorial design experiment was used with four factors to use fewer samples to have a total of 8. The specimens were exposed to artificial weathering consisting of soaking wood in water, drying at 60 °C, and exposure to UV radiation. Three-step aging cycle was repeated 8 times. In general, the tested wood species changed their compressive strength differently under the influence of artificial weathering. …


Improving Project Performance Using Lean Construction In Egypt ., Marwa Gamal Swefie Oct 2013

Improving Project Performance Using Lean Construction In Egypt ., Marwa Gamal Swefie

Theses and Dissertations

There are numerous challenges and problems facing the construction industry in Egypt. The main criterion for success of any construction project is to deliver the project without time or cost overrun. Lean Construction is a new management technique that has been successfully implemented in many countries to increase the probability of a project success. This research examines the effectiveness of implementing lean thinking on the performance of Egyptian construction projects. First, the current appreciation and awareness of lean construction within the Egyptian construction industry is determined through an actual survey within one of the largest construction firms in Egypt. It …


High Income Residential Compounds Around Cairo: An Investigation Of House Components' Importance And Finishing Materials Selection, Marwa Mohamed Lamei Feb 2009

High Income Residential Compounds Around Cairo: An Investigation Of House Components' Importance And Finishing Materials Selection, Marwa Mohamed Lamei

Archived Theses and Dissertations

No abstract provided.