تأثیر نوع و مقدار محصولات پایه ی سیلیسی در پارامترهای رفتاری و مقاومت برشی مخلوط خاک - سیمان
Soil cement consists of Portland cement, soil, and water, in which hydration of cement and compaction causes the materials to bond together making a dense and durable composition w...
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| Format: | Article |
| Language: | fas |
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Sharif University of Technology
2018-08-01
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| Series: | مهندسی عمران شریف |
| Subjects: | |
| Online Access: | https://sjce.journals.sharif.edu/article_1354_a8bc51dbe99440b446df42f325b072af.pdf |
| _version_ | 1797736777362964480 |
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| author | M. Tajdini M. Hajialilue H. Katebi S. Golmohammadi |
| author_facet | M. Tajdini M. Hajialilue H. Katebi S. Golmohammadi |
| author_sort | M. Tajdini |
| collection | DOAJ |
| description | Soil cement consists of Portland cement, soil, and water, in which hydration of cement and compaction causes the materials to bond together making a dense and durable composition with low permeability and resistance to abrasion. According to ACI 116R, soil-cement is a mixture of soil and a certain amount of cement and water which has been compacted to high density. A more comprehensive definition has been provided in ACI 230 IR, which defines soil-cement as a hard material with specific engineering properties produced by mixing, compaction and curing of soil, aggregate, Portland cement, additives and water. All types
of soils can be used in soil-cement mixture, except the organic and plastic soils and reactive sand. The most suitable soil for soil-cement contains 5\% to 35\% of fine passing sieve 200. However, more than 2\% of organic materials in soil are strictly unacceptable. Soil cement application in dams and pavement construction has grown rapidly in recent years. Although soil-cement is similar to concrete, the main difference is in the type and size of aggregate particles used. Soil-cement is principally made of round natural fine aggregates while concrete is made up of coarser aggregates. Most of the recent researches are focused on the addition of various types of cement to mixture. In this paper, we decide to use nano-$SiO_2$ particles in soil-cement and observe the out-coming effects. According to what was mentioned above, tests were conducted on the soil cement/nano-$SiO_2$ matrix in order to find the stress-strain behavior of these materials. The test procedure consists of tri-axial tests on the soil-cement-silica matrix. In these tests, silica fume (with specific surface area of 21$m^2$/g) and nano-$SiO_2$ (with specific surface area of 200 and 380 $m^2$/g) were added to soil-cement. The studied parameters are curing time, types, and contents of silica production. The results show that adding certain amounts of nano-$SiO_2$ particles to soil-cement matrix can improve shear strength and change behavior of the matrix. |
| first_indexed | 2024-03-12T13:18:51Z |
| format | Article |
| id | doaj.art-c86286ea0b474dfbba01858ebc34325e |
| institution | Directory Open Access Journal |
| issn | 2676-4768 2676-4776 |
| language | fas |
| last_indexed | 2024-03-12T13:18:51Z |
| publishDate | 2018-08-01 |
| publisher | Sharif University of Technology |
| record_format | Article |
| series | مهندسی عمران شریف |
| spelling | doaj.art-c86286ea0b474dfbba01858ebc34325e2023-08-26T10:18:18ZfasSharif University of Technologyمهندسی عمران شریف2676-47682676-47762018-08-0134.22.1516110.24200/j30.2018.13541354تأثیر نوع و مقدار محصولات پایه ی سیلیسی در پارامترهای رفتاری و مقاومت برشی مخلوط خاک - سیمانM. Tajdini0M. Hajialilue1H. Katebi2S. Golmohammadi3Dept. of Civil Engineering Tabriz UniversityDept. of Civil Engineering Tabriz UniversityDept. of Civil Engineering Tabriz UniversityDept. of Civil Engineering Tabriz UniversitySoil cement consists of Portland cement, soil, and water, in which hydration of cement and compaction causes the materials to bond together making a dense and durable composition with low permeability and resistance to abrasion. According to ACI 116R, soil-cement is a mixture of soil and a certain amount of cement and water which has been compacted to high density. A more comprehensive definition has been provided in ACI 230 IR, which defines soil-cement as a hard material with specific engineering properties produced by mixing, compaction and curing of soil, aggregate, Portland cement, additives and water. All types of soils can be used in soil-cement mixture, except the organic and plastic soils and reactive sand. The most suitable soil for soil-cement contains 5\% to 35\% of fine passing sieve 200. However, more than 2\% of organic materials in soil are strictly unacceptable. Soil cement application in dams and pavement construction has grown rapidly in recent years. Although soil-cement is similar to concrete, the main difference is in the type and size of aggregate particles used. Soil-cement is principally made of round natural fine aggregates while concrete is made up of coarser aggregates. Most of the recent researches are focused on the addition of various types of cement to mixture. In this paper, we decide to use nano-$SiO_2$ particles in soil-cement and observe the out-coming effects. According to what was mentioned above, tests were conducted on the soil cement/nano-$SiO_2$ matrix in order to find the stress-strain behavior of these materials. The test procedure consists of tri-axial tests on the soil-cement-silica matrix. In these tests, silica fume (with specific surface area of 21$m^2$/g) and nano-$SiO_2$ (with specific surface area of 200 and 380 $m^2$/g) were added to soil-cement. The studied parameters are curing time, types, and contents of silica production. The results show that adding certain amounts of nano-$SiO_2$ particles to soil-cement matrix can improve shear strength and change behavior of the matrix.https://sjce.journals.sharif.edu/article_1354_a8bc51dbe99440b446df42f325b072af.pdfsoil-cementnano-$sio_2$triaxial testshear strengthbehavior of materials |
| spellingShingle | M. Tajdini M. Hajialilue H. Katebi S. Golmohammadi تأثیر نوع و مقدار محصولات پایه ی سیلیسی در پارامترهای رفتاری و مقاومت برشی مخلوط خاک - سیمان مهندسی عمران شریف soil-cement nano-$sio_2$ triaxial test shear strength behavior of materials |
| title | تأثیر نوع و مقدار محصولات پایه ی سیلیسی در پارامترهای رفتاری و مقاومت برشی مخلوط خاک - سیمان |
| title_full | تأثیر نوع و مقدار محصولات پایه ی سیلیسی در پارامترهای رفتاری و مقاومت برشی مخلوط خاک - سیمان |
| title_fullStr | تأثیر نوع و مقدار محصولات پایه ی سیلیسی در پارامترهای رفتاری و مقاومت برشی مخلوط خاک - سیمان |
| title_full_unstemmed | تأثیر نوع و مقدار محصولات پایه ی سیلیسی در پارامترهای رفتاری و مقاومت برشی مخلوط خاک - سیمان |
| title_short | تأثیر نوع و مقدار محصولات پایه ی سیلیسی در پارامترهای رفتاری و مقاومت برشی مخلوط خاک - سیمان |
| title_sort | تأثیر نوع و مقدار محصولات پایه ی سیلیسی در پارامترهای رفتاری و مقاومت برشی مخلوط خاک سیمان |
| topic | soil-cement nano-$sio_2$ triaxial test shear strength behavior of materials |
| url | https://sjce.journals.sharif.edu/article_1354_a8bc51dbe99440b446df42f325b072af.pdf |
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