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Unformatted text preview: 2. What benefits may be had through the partial substitution of pozzolanic materials for cement in concrete? Additional ?s I) What are the major differences between in the physical and chemical composition between ASTM Types II and III portland cement? II) Compare the properties of C-S-H and CH and their roles in determining the properties of hardened cement paste. III) What would be the volume of capillary voids in an 0.25 water/cement ratio paste that is 35 percent hydrated? Also calculate the water-cement ratio needed to obtain zero porosity in a fully hydrated cement paste. Assume that the specific gravity of cement is 3.14....
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- Spring '07
- Materials Science