Effects of metakaolin on nanomechanical properties of cement paste
Metakaolin (MK) is a pozzolanic material, which is a dehydroxylated form of the clay mineral kaolinite. It is obtained by calcination of kaolinite clay at a temperature between 500 °C and 800 °C. In cement matrix, MK reacts with Ca(OH)2, to produce calcium silicate hydrate (CSH) gel. MK also contain...
| Main Authors: | , |
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| Format: | Book Chapter |
| Published: |
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/14172 |
| _version_ | 1848748551346061312 |
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| author | Barbhuiya, Salim Chow, PengLoy |
| author_facet | Barbhuiya, Salim Chow, PengLoy |
| author_sort | Barbhuiya, Salim |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Metakaolin (MK) is a pozzolanic material, which is a dehydroxylated form of the clay mineral kaolinite. It is obtained by calcination of kaolinite clay at a temperature between 500 °C and 800 °C. In cement matrix, MK reacts with Ca(OH)2, to produce calcium silicate hydrate (CSH) gel. MK also contains alumina that reacts with Ca(OH)2 to produce additional alumina-containing phases, including C4AH13, C2ASH8 and C3AH6. This research aims to provide a better understanding of the effects of MK on the nanomechanical properties of the main phases present within the cement paste. Two different mixes were prepared, one control mix and the other one with 10 % MK (by cement weight). A constant water-binder ratio of 0.4 was used for both the mixes. Fraction volumes determined from nanoindentation testing show an increase in the amounts of high-density CSH at the cost of low-density CSH gel in cement pastes containing 10 % MK. |
| first_indexed | 2025-11-14T07:06:50Z |
| format | Book Chapter |
| id | curtin-20.500.11937-14172 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:06:50Z |
| publishDate | 2015 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-141722019-05-01T03:06:43Z Effects of metakaolin on nanomechanical properties of cement paste Barbhuiya, Salim Chow, PengLoy Metakaolin (MK) is a pozzolanic material, which is a dehydroxylated form of the clay mineral kaolinite. It is obtained by calcination of kaolinite clay at a temperature between 500 °C and 800 °C. In cement matrix, MK reacts with Ca(OH)2, to produce calcium silicate hydrate (CSH) gel. MK also contains alumina that reacts with Ca(OH)2 to produce additional alumina-containing phases, including C4AH13, C2ASH8 and C3AH6. This research aims to provide a better understanding of the effects of MK on the nanomechanical properties of the main phases present within the cement paste. Two different mixes were prepared, one control mix and the other one with 10 % MK (by cement weight). A constant water-binder ratio of 0.4 was used for both the mixes. Fraction volumes determined from nanoindentation testing show an increase in the amounts of high-density CSH at the cost of low-density CSH gel in cement pastes containing 10 % MK. 2015 Book Chapter http://hdl.handle.net/20.500.11937/14172 10.1007/978-94-017-9939-3_57 restricted |
| spellingShingle | Barbhuiya, Salim Chow, PengLoy Effects of metakaolin on nanomechanical properties of cement paste |
| title | Effects of metakaolin on nanomechanical properties of cement paste |
| title_full | Effects of metakaolin on nanomechanical properties of cement paste |
| title_fullStr | Effects of metakaolin on nanomechanical properties of cement paste |
| title_full_unstemmed | Effects of metakaolin on nanomechanical properties of cement paste |
| title_short | Effects of metakaolin on nanomechanical properties of cement paste |
| title_sort | effects of metakaolin on nanomechanical properties of cement paste |
| url | http://hdl.handle.net/20.500.11937/14172 |