Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Gholamreza Fathifazl"'
Autor:
Cassandra Trottier, Mayra T. de Grazia, Hian F. Macedo, Leandro F. M. Sanchez, Gabriella P. de Andrade, Diego J. de Souza, Olga Naboka, Gholamreza Fathifazl, Pierre-Claver Nkinamubanzi, André Demers
Publikováno v:
Materials, Vol 15, Iss 4, p 1342 (2022)
The pressure to use sustainable materials and adopt practices reducing the carbon footprint of the construction industry has risen. Such materials include recycled concrete aggregates (RCA) made from waste concrete. However, concrete made with RCA of
Externí odkaz:
https://doaj.org/article/48ddc83ba882468080b7d8d4a92d70ef
Autor:
Diego Jesus De Souza, Mayra T. de Grazia, Hian F. Macedo, Leandro F. M. Sanchez, Gabriella P. de Andrade, Olga Naboka, Gholamreza Fathifazl, Pierre-Claver Nkinamubanzi
Publikováno v:
Materials, Vol 15, Iss 4, p 1355 (2022)
Most of the previous research on recycled concrete aggregates (RCA) has focused on coarse RCA (CRCA), while much less has been accomplished on the use of fine RCA particles (FRCA). Furthermore, most RCA research disregards its unique microstructure,
Externí odkaz:
https://doaj.org/article/69d1983ae5bf4ffe987918e3dcb683de
Autor:
Abdelgadir Abbas, Simon Foo, Benoit Fournier, Gholamreza Fathifazl, O. Burkan Isgor, A. Ghani Razaqpur
Publikováno v:
Cement and Concrete Composites. 33:1026-1037
Laboratory tests are performed to investigate the effects of a new method of mixture proportioning on the creep and shrinkage characteristics of concrete made with recycled concrete aggregate (RCA). In this method, RCA is treated as a two component c
Autor:
Abdelgadir Abbas, Gholamreza Fathifazl, Benoit Fournier, A. G. Razaqpur, O. Burkan Isgor, Simon Foo
Publikováno v:
Engineering Structures. 33:1025-1033
The applicability of some major concrete design standards and other pertinent methods to calculate the concrete contribution to the shear resistance of reinforced recycled concrete (RRC) beams without stirrups is investigated. Results of a relatively
Publikováno v:
Sustainability, Vol 3, Iss 2, Pp 465-468 (2011)
The authors are to be congratulated for their comprehensive research work on the use of RCA as aggregate in structural grade concrete [1], but some of their conclusions with regard to the effect of aggregate type and RCA content on the fresh and hard
Autor:
Gholamreza Fathifazl, A. G. Razaqpur, Benoit Fournier, Simon Foo, O. Burkan Isgor, Abdelgadir Abbas
Publikováno v:
Magazine of Concrete Research. 62:685-699
An experimental study is conducted to investigate the shear behaviour and strength of concrete beams made with coarse recycled concrete aggregate. The distinguishing feature of the beams is the manner in which their concrete mixture is proportioned.
Publikováno v:
Journal of Materials in Civil Engineering. 21:601-611
New method of mixture proportioning is proposed for concrete made with coarse recycled concrete aggregates (RCA). The proposed method, dubbed the "equivalent mortar volume" method, is predicated on the fact that RCA is a two-phase material comprising
Autor:
Abdelgadir Abbas, Gholamreza Fathifazl, A. Ghani Razaqpur, Benoit Fournier, O. Burkan Isgor, Simon Foo
Publikováno v:
Cement and Concrete Composites. 31:555-563
Results of a comprehensive investigation about the durability of structural-grade concrete made with recycled concrete aggregate (RCA) are presented. The RCA-concrete mixes were proportioned using a new concrete mix design method, termed the equivale
Autor:
Simon Foo, Benoit Fournier, O. B. Isgor, A. G. Razaqpur, Gholamreza Fathifazl, R. Zavadil, Abdelgadir Abbas
Publikováno v:
Materials Characterization. 60:716-728
As the supply of suitable fresh aggregates in some locations is rapidly dwindling and such aggregates need to be transported from distant locations, there will be more and more economic and environmental reasons to use recycled concrete aggregates in