Eering sciences tikrit journal of engineering sciences comparative study between silica fume and nano silica fume in improving the shear strength and collapsibility of highly gypseous soil
Other Title(s)
دراسة مقارنة بين غبار السيليكا و نانو غبار السيليكا في تحسين مقاومة القص و الانهيارية للتربة العالية الجبس
Joint Authors
al-Mukhtar, Marwah Talal
al-Dakhil, Umar Muhammad
Hannunah, Said Qasim
al-Ubaydi, Ahmad Abd al-Hamid
Source
Tikrit Journal of Engineering Sciences
Issue
Vol. 27, Issue 1 (31 Mar. 2020), pp.72-78, 7 p.
Publisher
Tikrit University Colleg of Engineering
Publication Date
2020-03-31
Country of Publication
Iraq
No. of Pages
7
Main Subjects
Topics
- Comparative analysis
- Building materials
- Gypsum
- Silica
- Gypsiferous soils
- Nanomaterials
- Silica fume
- Shear strength
Abstract AR
Soils with highly gypsum content signify known as soils that exhibit collapsibility
Abstract EN
Soils with highly gypsum content signify known as soils that exhibit collapsibility and sudden failure when being submerged to wetting.
Many of the constructions built on this soil showed cracked and/or collapsed at some parts as these soils immersed or leached with water.
The utilization of extremely fine materials, for example, Microscale or Nanoscale, is generally utilized these days.
This research compared the use of Silica fume (SF) (micro material) and Nano Silica fume (NSF) (Nanomaterial) to explore the capability of these very fine materials to mend the shear strength and collapsibility properties of highly gypseous soils.
The soil as Poorly Graded Sand (SP) was used, with a gypsum amount equal to 62% .
A succession of direct shear tests and double odometer tests were carried on dry and submarined specimens of soil at various percentages of SF and NSF.
The obtained results indicate that mixing the highly gypseous soils with SF or NSF improved the engineering properties of these soils, especially for the wet condition.
The average increment in apparent cohesion when adding SF (5-20) percentage varies between (140-310) % in dry soil and (20-40) % in soaked soil.
Same results obtained when mixing the gypseous soils with (1-5) % of NSF.
Also, the Nanomaterial provided an improvement of the friction angle in dry and submerged cases respectively.
Considering that, the SF gives adverse results upon the friction angle of the soil.
The SF and the NSF both condensed the dangers of gypseous soil collapsibility.
Consequently, the use of NSF can be assertively suggested to improve the engineering characteristics of highly gypseous soils when compared with SF, where only mixing of 3% of NSF gives the best results.
American Psychological Association (APA)
al-Ubaydi, Ahmad Abd al-Hamid& al-Dakhil, Umar Muhammad& Hannunah, Said Qasim& al-Mukhtar, Marwah Talal. 2020. Eering sciences tikrit journal of engineering sciences comparative study between silica fume and nano silica fume in improving the shear strength and collapsibility of highly gypseous soil. Tikrit Journal of Engineering Sciences،Vol. 27, no. 1, pp.72-78.
https://search.emarefa.net/detail/BIM-1004199
Modern Language Association (MLA)
al-Ubaydi, Ahmad Abd al-Hamid…[et al.]. Eering sciences tikrit journal of engineering sciences comparative study between silica fume and nano silica fume in improving the shear strength and collapsibility of highly gypseous soil. Tikrit Journal of Engineering Sciences Vol. 27, no. 1 (2020), pp.72-78.
https://search.emarefa.net/detail/BIM-1004199
American Medical Association (AMA)
al-Ubaydi, Ahmad Abd al-Hamid& al-Dakhil, Umar Muhammad& Hannunah, Said Qasim& al-Mukhtar, Marwah Talal. Eering sciences tikrit journal of engineering sciences comparative study between silica fume and nano silica fume in improving the shear strength and collapsibility of highly gypseous soil. Tikrit Journal of Engineering Sciences. 2020. Vol. 27, no. 1, pp.72-78.
https://search.emarefa.net/detail/BIM-1004199
Data Type
Journal Articles
Language
English
Notes
-
Record ID
BIM-1004199