T602 - WV Department of Transportation
T602
Rev 8-02
WEST VIRGINIA DIVISION OF HIGHWAYS
MATERIALS CONTROL, SOILS AND TESTING DIVISION
WEIGHT PER CUBIC FOOT AND YIELD OF CONCRETE
|CONCRETE PLANT | | |DATE | |
|SOURCE CODE | | |CONCRETE CLASS | |
|MIX DESIGN NO. | | |MATERIAL CODE | |
|PROJECT | | |INSPECTOR | |
|UNIT WEIGHT |
| |BATCH 1 |BATCH 2 |BATCH 3 |
|A. WEIGHT OF EMPTY MEASURE (lb) | | | |
|B. WEIGHT OF MEASURE + CONCRETE (lb) | | | |
|C. WEIGHT OF CONCRETE (B – A) (lb) | | | |
|D. MEASURE CALIBRATION FACTOR (1/ft3) | | | |
|W. UNIT WEIGHT OF CONCRETE (C x D) (lb/ft3) | | | |
|TOTAL WEIGHT OF ALL MATERIALS BATCHED |
| |BATCH 1 |BATCH 2 |BATCH 3 |
|E. WEIGHT OF CEMENT (lb) | | | |
|F. WEIGHT OF MINERAL ADMIXTURE (lb) | | | |
|G. WEIGHT OF WATER (lb) | | | |
|H. WEIGHT OF COARSE AGGREGATE (lb) | | | |
|I. WEIGHT OF FINE AGGREGATE (lb) | | | |
|W1. TOTAL BATCH WEIGHT | | | |
|(E +F + G + H + I) (lb) | | | |
|YIELD |
| |BATCH 1 |BATCH 2 |BATCH 3 |
|Yd. VOLUME OF CONCRETE WHICH THE BATCH WAS DESIGNED TO PRODUCE | | | |
|(yd3) | | | |
|Y. ACTUAL VOL OF CONCRETE PRODUCED PER BATCH (YIELD=W1/27W) (yd3) | | | |
|RY. RELATIVE YIELD (RATIO OF ACTUAL VOL TO DESIGN VOL) (Y/Yd) | | | |
ACTUAL YEILD (AVERAGE OF THREE BATCHES) = ( RY (BATCH 1) + RY (BATCH 2) + RY (BATCH 3) ) ÷ 3
| | |
|ACTUAL YEILD = ( + + ) ÷ 3 = | |
NOTE: A VALUE FOR THE ACTUAL YIELD (OR RELATIVE YIELD) GREATER THAN 1.00 INDICATES AN EXCESS OF CONCRETE BEING PRODUCED (AND THEREFORE A LOWER CEMENT FACTOR) WHEREAS A VALUE LESS THAN THIS INDICATES THE BATCH TO BE SHORT OF ITS DESIGNED VOLUME (AND THEREFORE A HIGHER CEMENT FACTOR).
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