Expansive Cement Concretes for Naval Construction.
Final rept. Jul 71-Jun 75,
CIVIL ENGINEERING LAB (NAVY) PORT HUENEME CALIF
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Expansion and subsequent shrinkage characteristics of shrinkage-compensating conrete were determined in mesh-reinforced prisms. The prisms were cured in fog for 14 days and then subjected to drying in either 25, 50, or 75 relative humidity all at 73F. The concretes were made with four different aggregate types 1 moderate quality river aggregate, 2 moderate quality limestone aggregate, 3 light-weight coarse aggregate and river sand, and 4 lightweight coarse and fine aggregates. Maximum aggregate size was 38 inch. The effects of the following variables on expansion and shrinkage were determined amount of cement, amount of reinforcement, prism thickness, and relative humidity of shrinkage environment. Design recommendations are made for use of shrinkage-compensating expansive concretes in various climatic areas. Author
- Ceramics, Refractories and Glass