Fineness Of Indigenous Cements Of Bangladesh And Its Effects On Initial And Final Settings
Cement is the most common construction materials. It is expected that finer cement provides larger surface area for hydration thus sets early. But, due to other contents like fillers, gypsum etc. this phenomenon can be different. Non-structural cracks usually form on a mortar-plastered surface due t...
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| פורמט: | Article |
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R&D Wing, MIST
2015
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| גישה מקוונת: | http://hdl.handle.net/123456789/213 |
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| _version_ | 1868227013960007680 |
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| author | Md Gazi Ferooz Rahman, Brigadier General Shamsuddoha, Md. |
| author_browse | Md Gazi Ferooz Rahman, Brigadier General Shamsuddoha, Md. |
| author_facet | Md Gazi Ferooz Rahman, Brigadier General Shamsuddoha, Md. |
| author_sort | Md Gazi Ferooz Rahman, Brigadier General |
| collection | DSpace |
| description | Cement is the most common construction materials. It is expected that finer cement provides larger surface area for hydration thus sets early. But, due to other contents like fillers, gypsum etc. this phenomenon can be different. Non-structural cracks usually form on a mortar-plastered surface due to a number of different causes. Bangladesh being a developing country, construction industries are booming in the recent years. Thus, cement property tests have become an important quality control measure for concrete production. This paper will provide guidance to ensure cement quality by observing the general value of fineness of local cement brands and effect of fineness on consistency, initial and final setting times. Cracks developed on plastered surfaces under different curing conditions are also studied. It is found that consistency increases with increased fineness whereas setting times decreases. Insufficient curing leads to more cracks than prolonged curing (up to 7 days) aided low crack formation. Results suggested requirement of extended curing for at least 7 days and more. |
| format | Article |
| id | oai:localhost:123456789-213 |
| institution | My University |
| language | English |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | R&D Wing, MIST |
| publisherStr | R&D Wing, MIST |
| record_format | dspace |
| spelling | oai:localhost:123456789-2132016-01-21T17:37:19Z Fineness Of Indigenous Cements Of Bangladesh And Its Effects On Initial And Final Settings Md Gazi Ferooz Rahman, Brigadier General Shamsuddoha, Md. Fineness, curing, hydration, gradation, setting time, consistency, cracks Cement is the most common construction materials. It is expected that finer cement provides larger surface area for hydration thus sets early. But, due to other contents like fillers, gypsum etc. this phenomenon can be different. Non-structural cracks usually form on a mortar-plastered surface due to a number of different causes. Bangladesh being a developing country, construction industries are booming in the recent years. Thus, cement property tests have become an important quality control measure for concrete production. This paper will provide guidance to ensure cement quality by observing the general value of fineness of local cement brands and effect of fineness on consistency, initial and final setting times. Cracks developed on plastered surfaces under different curing conditions are also studied. It is found that consistency increases with increased fineness whereas setting times decreases. Insufficient curing leads to more cracks than prolonged curing (up to 7 days) aided low crack formation. Results suggested requirement of extended curing for at least 7 days and more. R&D Wing 2015-09-21T03:57:23Z 2015-09-21T03:57:23Z 2012-02 Article 2224-2007 http://hdl.handle.net/123456789/213 en MIST Journal of Science and Technology;Volume 1, Number 1, February 2012 application/pdf R&D Wing, MIST |
| spellingShingle | Fineness, curing, hydration, gradation, setting time, consistency, cracks Md Gazi Ferooz Rahman, Brigadier General Shamsuddoha, Md. Fineness Of Indigenous Cements Of Bangladesh And Its Effects On Initial And Final Settings |
| title | Fineness Of Indigenous Cements Of Bangladesh And Its Effects On Initial And Final Settings |
| title_full | Fineness Of Indigenous Cements Of Bangladesh And Its Effects On Initial And Final Settings |
| title_fullStr | Fineness Of Indigenous Cements Of Bangladesh And Its Effects On Initial And Final Settings |
| title_full_unstemmed | Fineness Of Indigenous Cements Of Bangladesh And Its Effects On Initial And Final Settings |
| title_short | Fineness Of Indigenous Cements Of Bangladesh And Its Effects On Initial And Final Settings |
| title_sort | fineness of indigenous cements of bangladesh and its effects on initial and final settings |
| topic | Fineness, curing, hydration, gradation, setting time, consistency, cracks |
| url | http://hdl.handle.net/123456789/213 |
| work_keys_str_mv | AT mdgaziferoozrahmanbrigadiergeneral finenessofindigenouscementsofbangladeshanditseffectsoninitialandfinalsettings AT shamsuddohamd finenessofindigenouscementsofbangladeshanditseffectsoninitialandfinalsettings |