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Conference Paper: Packing density improvement through addition of limestone fines, superfine cement and condensed silica fume
Title | Packing density improvement through addition of limestone fines, superfine cement and condensed silica fume |
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Authors | |
Issue Date | 2016 |
Publisher | Scientific Research Publishing, Inc. The Journal's web site is located at http://www.scirp.org/journal/msce |
Citation | International Conference on Cement and Concrete Technology (CCT 2016), Suzhou, China, 25-27 July 2016. Proceedings in Journal of Materials Science and Chemical Engineering, 2016, v. 4 n. 7, p. 29-36 How to Cite? |
Abstract | Adoption of a low water/powder (W/P) ratio is the key to improve the strength and durability of concrete, which relies on a high packing density because fresh concrete requires excess water to offer flowability. To obtain a high packing density, powders with different particle sizes, including limestone fines (LSF), superfine cement (SFC), condensed silica fume (CSF), were added to the cement paste and the resulting packing densities were measured directly by a newly-developed wet packing test. Results demonstrated that addition of powders with a finer size would more significantly improve the packing density but the powders should be at least as fine as 1/4 of the OPC to effectively improve the packing density. Packing density and voids ratio relationship showed that a small increase in packing density can significantly decrease the voids ratio, which could allow the W/P ratio to be reduced to improve the strength and durability of the concrete without compromising the flowability. |
Persistent Identifier | http://hdl.handle.net/10722/250131 |
ISSN |
DC Field | Value | Language |
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dc.contributor.author | Chen, JJ | - |
dc.contributor.author | Kwan, AKH | - |
dc.contributor.author | Ng, PL | - |
dc.contributor.author | Li, LG | - |
dc.date.accessioned | 2017-12-20T09:21:11Z | - |
dc.date.available | 2017-12-20T09:21:11Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | International Conference on Cement and Concrete Technology (CCT 2016), Suzhou, China, 25-27 July 2016. Proceedings in Journal of Materials Science and Chemical Engineering, 2016, v. 4 n. 7, p. 29-36 | - |
dc.identifier.issn | 2327-6045 | - |
dc.identifier.uri | http://hdl.handle.net/10722/250131 | - |
dc.description.abstract | Adoption of a low water/powder (W/P) ratio is the key to improve the strength and durability of concrete, which relies on a high packing density because fresh concrete requires excess water to offer flowability. To obtain a high packing density, powders with different particle sizes, including limestone fines (LSF), superfine cement (SFC), condensed silica fume (CSF), were added to the cement paste and the resulting packing densities were measured directly by a newly-developed wet packing test. Results demonstrated that addition of powders with a finer size would more significantly improve the packing density but the powders should be at least as fine as 1/4 of the OPC to effectively improve the packing density. Packing density and voids ratio relationship showed that a small increase in packing density can significantly decrease the voids ratio, which could allow the W/P ratio to be reduced to improve the strength and durability of the concrete without compromising the flowability. | - |
dc.language | eng | - |
dc.publisher | Scientific Research Publishing, Inc. The Journal's web site is located at http://www.scirp.org/journal/msce | - |
dc.relation.ispartof | Journal of Materials Science and Chemical Engineering | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Packing density improvement through addition of limestone fines, superfine cement and condensed silica fume | - |
dc.type | Conference_Paper | - |
dc.identifier.email | Kwan, AKH: khkwan@hkucc.hku.hk | - |
dc.identifier.authority | Kwan, AKH=rp00127 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.4236/msce.2016.47005 | - |
dc.identifier.hkuros | 283712 | - |
dc.identifier.volume | 4 | - |
dc.identifier.issue | 7 | - |
dc.identifier.spage | 29 | - |
dc.identifier.epage | 36 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 2327-6045 | - |