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Cost Comparison Guide
Using various methods of temperature control for
batching concrete
Notes:
1. Block ice delivered price $0.06 per pound excluding
labor, handling and auxiliary equipment.
2. Assume $.07 per kilowatt hour.
3. Assume $1.10 per gallon fuel oil.
4. Assume $.90 per gallon natural gas.
5. All cooling costs assume 10°
F change of final mix temperature.
6. Cost required to raise temperature of
20,000 gallons of water from 50°
F to 140°
F.
7. Assume $5.54 per 1000 cubic feet.
8. Equipment cost does not include rental of a
nitrogen supply vessel which is approximately $1800 per month while in use.
Manufacturer suggests $.60 per yard per degree change of final mix
temperature.
9. Assume $.005 per pound. |