Properties Of Concrete Containing Rice Husk Ash Under Aggressive Environments Subjected To Wetting And Drying
Rice husk which is agro waste from a rice mill was burned at 700 oe for 6 hours in a gas furnace. The rice husk ash (RHA) was grounded using a laboratory ball mill with porcelain balls. The optimum RHA grinding time was determined. Eight different fineness grades of RHA were examined and it was f...
| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
2012
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| Subjects: | |
| Online Access: | http://eprints.usm.my/59345/ http://eprints.usm.my/59345/1/RAMADHANSYAH%20PUTRA%20JAYA24.pdf |
| _version_ | 1848884144563552256 |
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| author | Putrajaya, Ramadhan Syah |
| author_facet | Putrajaya, Ramadhan Syah |
| author_sort | Putrajaya, Ramadhan Syah |
| building | USM Institutional Repository |
| collection | Online Access |
| description | Rice husk which is agro waste from a rice mill was burned at 700 oe for 6 hours in a
gas furnace. The rice husk ash (RHA) was grounded using a laboratory ball mill with
porcelain balls. The optimum RHA grinding time was determined. Eight different
fineness grades of RHA were examined and it was found that the specific gravity and
the fineness of the rice husk ash increase with an increase in grinding time. Even
though. the morphology of the RHA changed with grinding. There appears to be an
optimum grinding time of approximately 90 min (to 9.52 urn particle size), during
which time the compressive strength and strength activity index increases
significantly. The use of rice husk ash grounded for 90 min produced concrete with
good strength and low porosity. On the other hand, the effect of ground RHA
blended cement subjected to 5% sodium chloride solution (NaCI), 5% sodium sulfate
solution (Na,S04), and seawater through cyclic wetting and drying was also
investigated. Four RHA replacement levels were considered in the study: 10%, 20%,
30%, and 40% by weight of cement. The durability performance of the RHA blended
cement exposed to aggressive environment was evaluated through compressive
strength, Rapid Chloride Penetrability Test CRCPT), and Rapid Migration Test
CRMT). In addition, microstructural changes that occur in specimens due to
aggressive environmental effects were identified through thermal analysis, XRD
techniques, and SEM. Test results showed that RHA can be satisfactorily used as a
cement replacement material in order to increases the durability of concrete. |
| first_indexed | 2025-11-15T19:02:02Z |
| format | Thesis |
| id | usm-59345 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T19:02:02Z |
| publishDate | 2012 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-593452023-09-07T06:22:41Z http://eprints.usm.my/59345/ Properties Of Concrete Containing Rice Husk Ash Under Aggressive Environments Subjected To Wetting And Drying Putrajaya, Ramadhan Syah TA1-2040 Engineering (General). Civil engineering (General) Rice husk which is agro waste from a rice mill was burned at 700 oe for 6 hours in a gas furnace. The rice husk ash (RHA) was grounded using a laboratory ball mill with porcelain balls. The optimum RHA grinding time was determined. Eight different fineness grades of RHA were examined and it was found that the specific gravity and the fineness of the rice husk ash increase with an increase in grinding time. Even though. the morphology of the RHA changed with grinding. There appears to be an optimum grinding time of approximately 90 min (to 9.52 urn particle size), during which time the compressive strength and strength activity index increases significantly. The use of rice husk ash grounded for 90 min produced concrete with good strength and low porosity. On the other hand, the effect of ground RHA blended cement subjected to 5% sodium chloride solution (NaCI), 5% sodium sulfate solution (Na,S04), and seawater through cyclic wetting and drying was also investigated. Four RHA replacement levels were considered in the study: 10%, 20%, 30%, and 40% by weight of cement. The durability performance of the RHA blended cement exposed to aggressive environment was evaluated through compressive strength, Rapid Chloride Penetrability Test CRCPT), and Rapid Migration Test CRMT). In addition, microstructural changes that occur in specimens due to aggressive environmental effects were identified through thermal analysis, XRD techniques, and SEM. Test results showed that RHA can be satisfactorily used as a cement replacement material in order to increases the durability of concrete. 2012-01 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/59345/1/RAMADHANSYAH%20PUTRA%20JAYA24.pdf Putrajaya, Ramadhan Syah (2012) Properties Of Concrete Containing Rice Husk Ash Under Aggressive Environments Subjected To Wetting And Drying. PhD thesis, Universiti Sains Malaysia. |
| spellingShingle | TA1-2040 Engineering (General). Civil engineering (General) Putrajaya, Ramadhan Syah Properties Of Concrete Containing Rice Husk Ash Under Aggressive Environments Subjected To Wetting And Drying |
| title | Properties Of Concrete Containing Rice Husk Ash Under Aggressive Environments Subjected To Wetting And Drying |
| title_full | Properties Of Concrete Containing Rice Husk Ash Under Aggressive Environments Subjected To Wetting And Drying |
| title_fullStr | Properties Of Concrete Containing Rice Husk Ash Under Aggressive Environments Subjected To Wetting And Drying |
| title_full_unstemmed | Properties Of Concrete Containing Rice Husk Ash Under Aggressive Environments Subjected To Wetting And Drying |
| title_short | Properties Of Concrete Containing Rice Husk Ash Under Aggressive Environments Subjected To Wetting And Drying |
| title_sort | properties of concrete containing rice husk ash under aggressive environments subjected to wetting and drying |
| topic | TA1-2040 Engineering (General). Civil engineering (General) |
| url | http://eprints.usm.my/59345/ http://eprints.usm.my/59345/1/RAMADHANSYAH%20PUTRA%20JAYA24.pdf |