Effects of Internal Curing, Slag, and Silica Fume on Concrete Shrinkage

Effects of Internal Curing, Slag, and Silica Fume on Concrete Shrinkage

The shrinkage of mixtures containing replacements of total aggregate with prewetted lightweight aggregate (LWA) (0, 8, and 10% by volume) and replacements of cement with Grade 100 slag cement (0 and 30% by volume) and silica fume (0, 3, and 6% by volume) is evaluated. The results show that internal...

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Veröffentlicht in:ACI materials journal 2018-07, Vol.115 (4), p.585-17
Hauptverfasser: Pendergrass, Benjamin, Darwin, David, Khajehdehi, Rouzbeh, Feng, Muzai
Format: Artikel
Sprache:eng
Schlagworte:
Aggregates
Cement
Concrete
Corrosion
Curing
Hydration
Permeability
Repair & maintenance
Shrinkage
Silica fume
Silicon dioxide
Slag cements
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Zusammenfassung:The shrinkage of mixtures containing replacements of total aggregate with prewetted lightweight aggregate (LWA) (0, 8, and 10% by volume) and replacements of cement with Grade 100 slag cement (0 and 30% by volume) and silica fume (0, 3, and 6% by volume) is evaluated. The results show that internal curing provided by prewetted LWA reduces the tendency of the mixtures to develop shrinkage strains. Further reductions are observed as slag is added in conjunction with prewetted LWA and as silica fume is added in conjunction with the prewetted LWA and slag.
ISSN:0889-325X
1944-737X
DOI:10.14359/51702193