Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Hafez E. Elyamany"'
Publikováno v:
Alexandria Engineering Journal, Vol 53, Iss 3, Pp 627-642 (2014)
This work was divided into two phases. Phase one included the validation of neural network to predict mortar and concrete properties due to sulfate attack. These properties were expansion, weight loss, and compressive strength loss. Assessment of con
Externí odkaz:
https://doaj.org/article/e7aca41f1e124c18a77d1b7f12d96889
Publikováno v:
Alexandria Engineering Journal, Vol 53, Iss 2, Pp 355-371 (2014)
The aim of this work is to assess the ultimate bond stress of normal and high strength concrete. This study contains two phases. The first phase included the studied bond behavior using two different models. In the first model, single pull-out test (
Externí odkaz:
https://doaj.org/article/49e68f4855a640849b2a907268c17876
Publikováno v:
Alexandria Engineering Journal, Vol 53, Iss 2, Pp 309-317 (2014)
This investigation aims to determine the participation ratio of cement matrix and latex network in latex cement co-matrix strength. The first stage of this study was carried out to investigate the effect of styrene butadiene rubber (SBR) on cement ma
Externí odkaz:
https://doaj.org/article/f3d7d5d23bfb4e8497c09c083fcf342c
Publikováno v:
Alexandria Engineering Journal, Vol 53, Iss 2, Pp 295-307 (2014)
The objective of this study is to evaluate the effect of various filler types on the fresh and hardened properties of self-compacting concrete (SCC) and Flow-able concrete. For this purpose, two groups of fillers were selected. The first group was po
Externí odkaz:
https://doaj.org/article/1e65f24508c343f3bca67a0a88eb2fb7
Publikováno v:
Alexandria Engineering Journal, Vol 52, Iss 1, Pp 83-98 (2013)
Numerous researches were performed on latex modified concretes and associated properties, however; some vital factors were not given attention in previous works. This study focus on new factor which significantly affects the properties of latex modif
Externí odkaz:
https://doaj.org/article/33c16bac35694c89b22338b03d6ea8ca
Publikováno v:
Alexandria Engineering Journal, Vol 50, Iss 1, Pp 65-78 (2011)
Most reinforced concrete structures suffer durability problems during their service. The major durability problem is the corrosion of reinforcing steel which results in cracking and spalling of concrete. Nowadays, mineral admixtures, such as silica f
Externí odkaz:
https://doaj.org/article/646715c8c06941bcab0c6834992e2488
Publikováno v:
Iranian Journal of Science and Technology, Transactions of Civil Engineering. 45:2297-2315
This work is an experimental study on sulphuric acid resistance of geopolymer concrete. The main variables considered throughout the research program were fly ash content from 0.0 to 40% and silica fume content as replacement of quenched slag in addi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a198c1181e75e2c586caf6c67adfe51
https://doi.org/10.1007/s40996-020-00515-5
https://doi.org/10.1007/s40996-020-00515-5
Publikováno v:
Construction and Building Materials. 210:210-231
This paper is dedicated to study the effect of nanomaterials, represented by Nano-SiO2 (NS) and Nano-Metakaolin (NMK), on the absorption, total porosity, magnesium sulfate resistance and acid resistance of High Strength Concrete (HSC) and High-Perfor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::103bd937802f1f7ce8fbbd12f6bae8bf
https://doi.org/10.1016/j.conbuildmat.2019.03.099
https://doi.org/10.1016/j.conbuildmat.2019.03.099
Publikováno v:
Construction and Building Materials. 191:32-38
Alkali-activated slag (AAS) binders are considered as eco-friendly materials due to its production process. The drawback of using AAS was its rapid setting and microcracks that can be formed due to its shrinkage process. In this study, different type
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da0ecef453ec1288c70b6660d7044e57
https://doi.org/10.1016/j.conbuildmat.2018.09.200
https://doi.org/10.1016/j.conbuildmat.2018.09.200
Publikováno v:
Construction and Building Materials. 187:974-983
Concrete is considered one of the most vital materials used in construction all over the world which ordinary portland cement (OPC) is used as the binder to produce it. The harmful effect of OPC production on environment is well known. Therefore, geo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::740d9c17a31fd386edf0292e8e7085f2
https://doi.org/10.1016/j.conbuildmat.2018.08.025
https://doi.org/10.1016/j.conbuildmat.2018.08.025