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- Publisher Website: 10.1016/j.jclepro.2018.11.007
- Scopus: eid_2-s2.0-85057185209
- WOS: WOS:000456762600007
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Article: Lowering cement content in mortar by adding superfine zeolite as cement replacement and optimizing mixture proportions
Title | Lowering cement content in mortar by adding superfine zeolite as cement replacement and optimizing mixture proportions |
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Authors | |
Keywords | Carbon footprint Cohesiveness Flowability Low-cement concrete Strength |
Issue Date | 2019 |
Publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jclepro |
Citation | Journal of Cleaner Production, 2019, v. 210, p. 66-76 How to Cite? |
Abstract | Reducing the cement consumption in concrete construction is an effective method to lower the carbon footprint and alleviate global warming. One strategy is to replace part of cement by a cementitious or non-cementitious filler. Another strategy is to optimize the mixture proportions to minimize the cement content. Although these strategies have been separately adopted, there is little research on their combined adoption. To study the feasibility of combining these two strategies, a number of mortar samples with varying amount of superfine zeolite (SZ) added, binder/aggregate (B/A) ratio and water/binder (W/B) ratio were made for packing density, flowability, cohesiveness and strength tests. The results revealed that adding 5% SZ to replace cement would increase the packing density and flowability and decrease the cement/strength ratio by 17%–28%, depending on the other mixture parameters. There is an optimum B/A ratio for minimum cement/strength ratio, which is generally lower at lower strength level. The use of a suitable B/A ratio of 0.65 or 0.55 instead of a constant and conservative value of 0.75 at strength level lower than 60 MPa could reduce the cement content by about 10%. |
Persistent Identifier | http://hdl.handle.net/10722/277491 |
ISSN | 2023 Impact Factor: 9.7 2023 SCImago Journal Rankings: 2.058 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Chen, JJ | - |
dc.contributor.author | Ng, PL | - |
dc.contributor.author | Kwan, AKH | - |
dc.contributor.author | Li, LG | - |
dc.date.accessioned | 2019-09-20T08:52:04Z | - |
dc.date.available | 2019-09-20T08:52:04Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Journal of Cleaner Production, 2019, v. 210, p. 66-76 | - |
dc.identifier.issn | 0959-6526 | - |
dc.identifier.uri | http://hdl.handle.net/10722/277491 | - |
dc.description.abstract | Reducing the cement consumption in concrete construction is an effective method to lower the carbon footprint and alleviate global warming. One strategy is to replace part of cement by a cementitious or non-cementitious filler. Another strategy is to optimize the mixture proportions to minimize the cement content. Although these strategies have been separately adopted, there is little research on their combined adoption. To study the feasibility of combining these two strategies, a number of mortar samples with varying amount of superfine zeolite (SZ) added, binder/aggregate (B/A) ratio and water/binder (W/B) ratio were made for packing density, flowability, cohesiveness and strength tests. The results revealed that adding 5% SZ to replace cement would increase the packing density and flowability and decrease the cement/strength ratio by 17%–28%, depending on the other mixture parameters. There is an optimum B/A ratio for minimum cement/strength ratio, which is generally lower at lower strength level. The use of a suitable B/A ratio of 0.65 or 0.55 instead of a constant and conservative value of 0.75 at strength level lower than 60 MPa could reduce the cement content by about 10%. | - |
dc.language | eng | - |
dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jclepro | - |
dc.relation.ispartof | Journal of Cleaner Production | - |
dc.subject | Carbon footprint | - |
dc.subject | Cohesiveness | - |
dc.subject | Flowability | - |
dc.subject | Low-cement concrete | - |
dc.subject | Strength | - |
dc.title | Lowering cement content in mortar by adding superfine zeolite as cement replacement and optimizing mixture proportions | - |
dc.type | Article | - |
dc.identifier.email | Kwan, AKH: khkwan@hkucc.hku.hk | - |
dc.identifier.authority | Kwan, AKH=rp00127 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.jclepro.2018.11.007 | - |
dc.identifier.scopus | eid_2-s2.0-85057185209 | - |
dc.identifier.hkuros | 305492 | - |
dc.identifier.volume | 210 | - |
dc.identifier.spage | 66 | - |
dc.identifier.epage | 76 | - |
dc.identifier.isi | WOS:000456762600007 | - |
dc.publisher.place | Netherlands | - |
dc.identifier.issnl | 0959-6526 | - |