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Unformatted text preview: cement in concrete? 7. What are the possible applications of a retarding admixture? 8. What are the possible applications of an accelerating admixture? 9. What are the effects of addition of calcium chloride on properties of fresh and hardened concrete? 10. Describe the three classes of pozzolanic materials as defined in ASTM C 618. 11. Describe the particle shape, size, fineness, specific gravity and composition of fly ash. 12. Describe the three different grades of ground granulated blast-furnace slag as defined in ASTM C989. 13. Describe the particle shape, size, fineness, specific gravity and composition of silica fume. Why is silica fume a more effective pozzolanic material than fly ash or ground blast-furnace slag? 14. Describe the applications of fly ash, blast-furnace slag and silica fume admixtures in concrete. 15. Describe a corrosion inhibitor admixture. 16. Describe gas forming admixture....
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- Spring '11
- Calcium Chloride, Portland cement, admixture, air-entraining admixture