Microstructural developments of limestone calcined clay cement (LC3) pastes after long-term (3 years) hydration
LC3 is one of the most promising alternatives for a high-performance blended cement with a significantly lower clinker content and with potential for worldwide adoption. For this reason, understanding its long-term performance is relevant to ensure serviceability over its lifespan. In this paper, a...
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| Veröffentlicht in: | Cement and concrete research 2022-03, Vol.153, p.106693, Article 106693 |
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| creator | Zunino, Franco Scrivener, Karen |
| description | LC3 is one of the most promising alternatives for a high-performance blended cement with a significantly lower clinker content and with potential for worldwide adoption. For this reason, understanding its long-term performance is relevant to ensure serviceability over its lifespan. In this paper, a detailed study of phase assemblage, porosity evolution and microstructural development was conducted on LC3 samples hydrated up to 3 years and compared to 90 days specimens. It was observed that the reaction of clinker phases and metakaolin continues between 90 days and 3 years, even after depletion of portlandite. Strätlingite was observed in systems with higher metakaolin contents, in addition to hemi and monocarboaluminate. Experimental results were compared with thermodynamical modelling. New insights are obtained on the hydration mechanisms operating at later ages, when only small pores remain filled with pore solution. |
| doi_str_mv | 10.1016/j.cemconres.2021.106693 |
| format | Article |
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New insights are obtained on the hydration mechanisms operating at later ages, when only small pores remain filled with pore solution.</description><subject>Clinker</subject><subject>Depletion</subject><subject>Humidity</subject><subject>Hydration</subject><subject>Image analysis</subject><subject>Limestone</subject><subject>Metakaolin</subject><subject>Pastes</subject><subject>Pore size distribution</subject><subject>Porosity</subject><subject>Thermodynamic calculations</subject><issn>0008-8846</issn><issn>1873-3948</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNqFkMtKAzEUhoMoWC_PYMCNLqbmUjMnSyneoOJG1yHNnNGUmcmYpELfxmfxyUypuHV1Lvz_fzgfIWecTTnj6mo1ddi7MERMU8EEL1ultNwjEw61rKSewT6ZMMagApipQ3KU0qqMSkiYkPHJuxhSjmuX19F2tMFP7MLY45ATDS3tfI8phwGps53zAzbUdXZDy9EioReLubyko00ZE7Vtxki7MLxVpenphfz-2qCN6ZK-b5posw_DCTlobZfw9Lcek9e725f5Q7V4vn-c3ywqJ7XIFedyyWpgzi5rtqyVFIJpvG4sLFvQUgJa0EIobQGg6ITDMjDLldSSKyePyfkud4zhY11eMKuwjkM5aYSSUCvQwIqq3qm2EFLE1ozR9zZuDGdmi9eszB9es8VrdniL82bnxPLEp8dokvM4OGx8RJdNE_y_GT-0_Yg5</recordid><startdate>202203</startdate><enddate>202203</enddate><creator>Zunino, Franco</creator><creator>Scrivener, Karen</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>6I.</scope><scope>AAFTH</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>202203</creationdate><title>Microstructural developments of limestone calcined clay cement (LC3) pastes after long-term (3 years) hydration</title><author>Zunino, Franco ; Scrivener, Karen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-113b0780cab70b7632209e5da8bf89338ea892269a8887802ce2690a1639316c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Clinker</topic><topic>Depletion</topic><topic>Humidity</topic><topic>Hydration</topic><topic>Image analysis</topic><topic>Limestone</topic><topic>Metakaolin</topic><topic>Pastes</topic><topic>Pore size distribution</topic><topic>Porosity</topic><topic>Thermodynamic calculations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zunino, Franco</creatorcontrib><creatorcontrib>Scrivener, Karen</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Cement and concrete research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zunino, Franco</au><au>Scrivener, Karen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microstructural developments of limestone calcined clay cement (LC3) pastes after long-term (3 years) hydration</atitle><jtitle>Cement and concrete research</jtitle><date>2022-03</date><risdate>2022</risdate><volume>153</volume><spage>106693</spage><pages>106693-</pages><artnum>106693</artnum><issn>0008-8846</issn><eissn>1873-3948</eissn><abstract>LC3 is one of the most promising alternatives for a high-performance blended cement with a significantly lower clinker content and with potential for worldwide adoption. 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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Clinker Depletion Humidity Hydration Image analysis Limestone Metakaolin Pastes Pore size distribution Porosity Thermodynamic calculations |
| title | Microstructural developments of limestone calcined clay cement (LC3) pastes after long-term (3 years) hydration |
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