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Developing Geopolymer Concrete Properties by Using Nanomaterials and Steel Fibers
Joint Authors
Rabiaa, E.
Mohamed, R. A. S.
Sofi, W. H.
Tawfik, Taher A.
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-21
Country of Publication
Egypt
No. of Pages
12
Abstract EN
This research investigates the simultaneous impact of two different types of steel fibers, nanometakaolin, and nanosilica on the mechanical properties of geopolymer concrete (GPC) mixes.
To achieve this aim, different geopolymer concrete mixes were prepared.
Firstly, with and without nanomaterials (nanosilica and nanometakaolin) of 0, 2%, 4%, 6%, and 8% from ground granulated blast furnace slag (GGBFS) were used.
Secondly, steel fiber (hooked end and crimped) content of (0, 0.5%, 1, and 1.5%) was used.
Thirdly, optimum values of nanomaterials with the optimum values of steel fiber were used.
Crimped and hooked-end steel fibers were utilized with an aspect ratio of 60 and a length of 30 mm.
Geopolymer mixes were manufactured by using a constant percentage of alkaline activator to binder proportion equal to 0.45 with GGBFS cured at ambient conditions.
For alkaline activator, sodium hydroxide molar (NaOH) and sodium hydroxide solution (NaOH) were used according to a proportion (Na2SiO3/NaOH) of 2.33.
The hardened concrete tests were performed through the usage of splitting tensile strength, flexural, and compressive experiments to determine the impact of steel fibers, nanometakaolin, and nanosilica individually and combined on performance of GPC specimens.
The results illustrated that using a mix composed of the optimum steel fibers (1% content) accompanied by an optimum percentage of 6% nanometakaolin or 4% nanosilica demonstrated a significant enhancement in the mechanical properties of GPC specimens compared to all other mixtures.
Besides, the impact of using nanomaterials individually was found to be predominant on compressive strength on GPC specimens especially with the usage of the optimum values.
However, using nanomaterials individually compared to using the steel fibers individually was found to have approximately the same splitting tensile strength and flexural performance.
American Psychological Association (APA)
Rabiaa, E.& Mohamed, R. A. S.& Sofi, W. H.& Tawfik, Taher A.. 2020. Developing Geopolymer Concrete Properties by Using Nanomaterials and Steel Fibers. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1128545
Modern Language Association (MLA)
Rabiaa, E.…[et al.]. Developing Geopolymer Concrete Properties by Using Nanomaterials and Steel Fibers. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-12.
https://search.emarefa.net/detail/BIM-1128545
American Medical Association (AMA)
Rabiaa, E.& Mohamed, R. A. S.& Sofi, W. H.& Tawfik, Taher A.. Developing Geopolymer Concrete Properties by Using Nanomaterials and Steel Fibers. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1128545
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1128545