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A review of limestone additions to Portland cement and concrete

✍ Scribed by Kevin D. Ingram; Kenneth E. Daugherty

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 561 KB
Volume: 13
Category: Article
ISSN: 0958-9465
DOI: 10.1016/0958-9465(91)90016-b

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Additions of colloidal silicas and silicates were added to portland cement and tricalcium silicate pastes to assess their pozzolanic reactivity. These materials show early reductions of calcium hydroxide consistent with a rapid pozzolanic reaction. High early strengths were generally observed with s

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In regard to the specific value of the strength loss on sulfate attack, the author and his co-workers (6)\* reported 40% loss of compressive strength in 90-day old alite pastes which contained 6% gypsum. It is possible that in the presence of sulfate ions the decrease in the stiffness of C-S-H, whic

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