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We Energies Coal Combustion Products ... - The White House

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Air Entraining Agent<br />

Compatible with cement and as<br />

needed for air content to provide<br />

required air for exposure condition<br />

B. 4000 PSI Concrete - 40% fly ash @ 1:1.25, cement to fly ash<br />

replacement ratio.<br />

Coarse Aggregate Size ASTM C33 Size No. 67<br />

Minimum Compressive Strength at 28 days 4000 psi<br />

Minimum Cement Content<br />

310 lbs/cu. yd.<br />

Minimum Class C Fly ash Content<br />

Air Entraining Agent<br />

251 lbs/cu. yd.<br />

Compatible with cement and as<br />

needed for air content to provide<br />

required air for exposure condition<br />

C. 5000 PSI Concrete - 40% fly ash @ 1:1.25, cement to fly ash<br />

replacement ratio<br />

Coarse Aggregate Size ASTM C33 No. 67<br />

Minimum Compressive Strength at 28 days 5000 psi<br />

Minimum Cement Content<br />

367 lbs/cu. yd.<br />

Minimum Class C Fly Ash<br />

Air Entraining Agent<br />

265 lbs/cu. yd.<br />

Compatible with cement and as<br />

needed for air content to provide<br />

required air for exposure condition<br />

D. 6000 PSI Concrete - 40% fly ash @ 1:1.25 cement to fly ash<br />

replacement ratio.<br />

Coarse Aggregate Size<br />

ASTM C33 No. 67 <br />

Minimum Compressive Strength @ 28 days 6000 psi<br />

Minimum Cement Content<br />

445 lbs/cu. yd.<br />

Minimum Flyash Content<br />

239 lbs/cu. yd.<br />

Slump 6½ in. <br />

Superplasticizer<br />

Compatible with cement and as <br />

needed for workability<br />

Air Entraining Agent<br />

Compatible with cement and as<br />

needed for air content to provide<br />

required air for exposure condition<br />

Part 3 – Execution<br />

3.01 Concrete Production<br />

A. Batch, mix, and transport ready-mixed concrete in accordance with<br />

ASTM C94.<br />

B. Mix concrete only in quantities for immediate use. Discard concrete<br />

which has set. Do not retemper.<br />

C. Discharge concrete from truck within 60 minutes after cement is added to<br />

the mix.<br />

D. Do not add water at the site without the permission of the Engineer.<br />

E. Add superplasticizer to the concrete at the project site. Add<br />

superplasticizer and mix concrete in accordance with manufacturer’s<br />

recommendations.<br />

<strong>We</strong> <strong>Energies</strong> 234<br />

<strong>Coal</strong> <strong>Combustion</strong> <strong>Products</strong><br />

Utilization Handbook

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