Summary of Tests for Evaluation of the Hydomix Slurry Mixer
Batch Data   Dry Batch Plant (Control)   Hydromix Equipped Plant  
           
Test No.   1 2 3 Average   1 2 3 Average  
Batch Time   8:31 9:49 10:48     9:50 10:37 11:21    
Ambient Temp (dF)   65.8 68.1 68.9 67.6   73 73 73 73.0  
Test Time   8:50 10:10 11:05     10:10 11:05 11:45    
Concrete Age (min)   0:19 0:21 0:17 0:19   0:20 0:28 0:24 0:24  
Slump (as batched)   3.5 3.75 3.25 3.50   4.5 5.5 3.75 4.58  
Temp (as batched)   n/a n/a n/a     77.5 77.4 77    
Water Added (gal/yd)   1 1 2 1.3   0 0 0.75 0.3  
Water Temp (dF)   64 64 64 64   68 68 68 68  
           
Concrete Properties   Dry Batch Plant (Control)   Hydromix Equipped Plant  
           
Slump (in)   4.25 4.5 5.25 4.67   5 5.5 4.5 5.00  
Temperature (dF)   76.2 76.4 78 76.87   79 79.3 79.7 79.33  
           
Air Content (%)   0.8 0.9 0.7 0.8   1.1 0.8 1.1 1.0  
Gravimetric Air Content (%)   0.7 1.7 1.9 1.4   0.9 1 0.8 0.9  
Difference in Air Tests   0.1 -0.8 -1.2 -0.6   0.2 -0.2 0.3 0.1  
           
Plastic Unit Weight (pcf)   148.2 146.6 146.4 147.1   148.4 148.2 148.0 148.2  
Plastic Yield (cf/cy)   26.85 27.32 27.15 27.11   26.86 27.35 27.21 27.14  
           
Cylinder Unit Weight (pcf)   147.8 148.0 147.1 147.6   147.8 147.9 148.5 148.1  
Cylinder Yield (cf/cy)   26.89 27.05 27.01 26.98   26.96 27.41 27.13 27.17  
           
W/C Ratio   0.51 0.51 0.51 0.51   0.48 0.50 0.51 0.50  
Yield Corrected Cement Content   563 556 556 558   576 550 551 559  
Time of Set (hr:min)   3:30         3:25        
           
Compressive Strength   Dry Batch Plant (Control)   Hydromix Equipped Plant  
  0 0   0   0   0  
3-days 3 2,000 1,900 2,180 2,030   2,770 2,090 2,930 2,600 128%
7-days 7 3,510 3,270 3,710 3,500   3,660 3,510 3,940 3,700 106%
14-days 14 4,370 4,120 4,120 4,200   5,190 4,580 4,830 4,870 116%
28-days 28 5,160 4,710 5,130 5,000   5,550 5,040 5,780 5,460 109%
                       
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