Cementing compositions
First Claim
1. A dry high temperature refractory mix consisting essentially of from 65 to 70 weight percent of portland cement, from 21 to 25 weight percent of volcanic glass, from 6 to 10 weight percent of microsilica, from 0.05 to 0.12 weight percent of least one air entraining agent and from 0.5 to 1.0 weight percent of at least one plasticizer compound.
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Accused Products
Abstract
There are disclosed high temperature refractory mixes especially adapted for relining and resizing chimney flues, comprising from 65 to 70 weight percent of portland cement, from 21 to 25 weight percent of volcanic glass, from 6 to 10 weight percent of microsilica, from 0.05 to 0.12 weight percent of at least one air entraining agent and from 0.5 to 1.0 weight percent of at least one plasticizer.
16 Citations
15 Claims
- 1. A dry high temperature refractory mix consisting essentially of from 65 to 70 weight percent of portland cement, from 21 to 25 weight percent of volcanic glass, from 6 to 10 weight percent of microsilica, from 0.05 to 0.12 weight percent of least one air entraining agent and from 0.5 to 1.0 weight percent of at least one plasticizer compound.
- 10. A solid chimney liner material comprising a refractory concrete obtained by curing an aqueous refractory concrete slurry comprising water blended with a refractory mix consisting essentially of, on a dry basis, 65 to 70 percent by weight of portland cement, from 21 to 25 percent by weight of volcanic glass, from 6 to 10 percent by weight of microsilica, from 0.05 to 0.12 percent by weight of at least one air entraining agent and from 0.5 to 1 percent by weight of at least one plasticizer compound, wherein the amount of water is in the range from 3.8 to 4.5 gallons per 60 pounds of dry refractory mix.
Specification