Zobrazeno 1 - 10
of 661
pro vyhledávání: '"Ibrahim Saad"'
Autor:
Abdullah M. Zeyad, Alaa A. Mahmoud, Alaa A. El-Sayed, Ayman M. Aboraya, Islam N. Fathy, Nikos Zygouris, Panagiotis G. Asteris, Ibrahim Saad Agwa
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-32 (2024)
Abstract In this study, four Artificial intelligence (AI) - based machine learning models were developed to estimate the Residual compressive strength (RCS) value of concrete supported with nano additives of Nanocarbon tubes (NCTs) and Nano alumina (
Externí odkaz:
https://doaj.org/article/3dbeaf820ec0456b870cb97ad9d41221
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03422- (2024)
One of the most present types of concrete in buildings is ultra-high-performance concrete. In contrast, large quantities of cement are consumed to achieve the required strength. To minimize the quantity of cement utilized in manufacturing ultra-high-
Externí odkaz:
https://doaj.org/article/92915f7b2c8b4d5a999515f8f6e6f101
Autor:
Mohamed Amin, Bassam A. Tayeh, Mohamed A. Kandil, Ibrahim Saad Agwa, Mohammad Farouk Abdelmagied
Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e03113- (2024)
Externí odkaz:
https://doaj.org/article/1c09724f5dbb4519a1c7342316429836
Autor:
Sahar A. Mostafa, Ibrahim Saad Agwa, Bahaa Elboshy, Abdullah M. Zeyad, Ahmed M. Seddik Hassan
Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e03365- (2024)
Innovative building materials are the primary focus for researchers seeking to reduce energy consumption and advance global sustainability initiatives. This target could accomplished by addressing environmental issues and confronting the adverse impa
Externí odkaz:
https://doaj.org/article/28b15109d0a842f7954cadcda4f28546
Autor:
Ibrahim Y. Hakeem, Mohamed Amin, Ibrahim Saad Agwa, Mahmoud H. Abd-Elrahman, Mohammad Farouk Abdelmagied
Publikováno v:
Case Studies in Construction Materials, Vol 19, Iss , Pp e02323- (2023)
Today, recycling and the use of eco-friendly construction supplies are major concerns for the environment. Concrete is frequently utilized in the engineering and construction sectors. In the past several decades, ultra-high performance concrete (UHPC
Externí odkaz:
https://doaj.org/article/f6c0786cb249497d86cab79a6f7d8aec
Autor:
Ibrahim Y. Hakeem, Mohamed Amin, Ibrahim Saad Agwa, Mahmoud H. Abd-Elrahman, Omar Mohamed Omar Ibrahim, Mohamed Samy
Publikováno v:
Case Studies in Construction Materials, Vol 19, Iss , Pp e02291- (2023)
Egypt produces more rice straw than any other nation, and this residue is currently discarded in untreated landfills and open fields, causing environmental damage in the country. Furthermore, eggshells, a waste product used in bakeries, restaurants,
Externí odkaz:
https://doaj.org/article/f4ac66dde81146ef9573072ee47c7343
Autor:
Ibrahim Y. Hakeem, Mohamed Amin, Ibrahim Saad Agwa, Mostafa S. Rizk, Mohammad Farouk Abdelmagied
Publikováno v:
Case Studies in Construction Materials, Vol 19, Iss , Pp e02266- (2023)
A significant quantity of cement is necessary for the production of ultra-high-performance concrete (UHPC). However, some environmental issues are associated with cement production. The worldwide agricultural growth increases ash from agricultural wa
Externí odkaz:
https://doaj.org/article/8567aa44fad64f6ab93177fa0f6664eb
Autor:
Ibrahim Y. Hakeem, Mohammad Alharthai, Mohamed Amin, Abdullah M. Zeyad, Bassam A. Tayeh, Ibrahim Saad Agwa
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 7444-7461 (2023)
This research aims to study the effect of adding nanosilica (NS) on the properties of sustainable high-strength concrete (SHSC). The SHSC was produced using recycled aggregates from concrete debris as a 100% alternative to coarse aggregate, and indus
Externí odkaz:
https://doaj.org/article/b125d86f6d5d40a8accf4904b6a143b5
Publikováno v:
The Egyptian Journal of Radiology and Nuclear Medicine, Vol 54, Iss 1, Pp 1-9 (2023)
Abstract Background Glycated hemoglobin (HbA1c) is a recognized biomarker that keeps track of long-term blood sugar levels. Some studies revealed that even a modest elevation of blood glucose levels was linked to a higher chance of developing CAD. In
Externí odkaz:
https://doaj.org/article/ef85e5770ca74faa963d585c60fffe48
Publikováno v:
Journal of Materials Research and Technology, Vol 23, Iss , Pp 3196-3218 (2023)
Agricultural countries suffer from growth problems of agricultural waste ash (AWA). This research paper studies the use of AWA as a partial substitute for cement to produce ultra-high-strength concrete (UHSC). This paper also investigates the effect
Externí odkaz:
https://doaj.org/article/4716a32c8bba4cd4a2dd1d9f1883fe71