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Cellular Concrete Comparisons

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The two tables below compare weight density, compresive strength and thermal conductivity achievable with a Neat Cement/Fly Ash mix and those attainable with a Sand/Cement/Fly Ash grout mix.

GEOFILL LD
NEAT CEMENT / FLY ASH MIXES

Weight Density (lb. / c.f.), Compressive Strength (psi), and Thermal Conductivity values attainable with various volumes
of preformed foam additions to Neat Cement / Fly Ash Mixes.

  Wet Density lb/ft3 Dry Density lb/ft3 Compressive Strength(2) lb/in2 "k" Thermal Conductivity btu in/h ft2 (Fahrenheit) Foam Volume ft/yd3  
  20 16 50 0.54 22.7  
  25 20 80 0.60 21.5  
  30 25 140 0.67 20.3  
  35 29 210 0.76 19.1  
  40 34 330 0.87 17.9  
  45 38 450 0.98 16.7  
  50 43 640 1.06 15.5  
  55 47 790 1.20 14.3  
  60 51 930 1.33 13.1  
The compressive strengths shown are approximate. As with ordinary concrete, the strength at any given density and mix proportion will also vary with the type of cement and the final water content of the mix.
1.) Water / Cement Ratio = 0.50   2.) Method of ASTM C 495
Actual properties will also vary based on curing conditions and other variables as dictated by job conditions.

 

GEOFILL LD
SAND CEMENT / FLY ASH GROUT MIXES

Weight Density (lb. / c.f.), Compressive Strength (psi), and Thermal Conductivity values attainable with various volumes
of preformed foam additions to Neat Sand / Cement / Fly Ash Grout Mixes

  Wet Density lb/ft3 Dry Density lb/ft3 Compressive Strength(2) lb/in2 "k" Thermal Conductivity btu in/h ft2 (Fahrenheit) Foam Volume ft/yd3  
  90 85 500 3.30 10.1  
  95 90 1,000 3.70 9.10  
  100 95 1,500 4.10 8.20  
  105 100 2,000 4.50 7.30  
  110 105 2,500 5.00 6.40  
  115 110 3,000 5.50 5.40  
  120 115 3,500 6.00 4.50  
  125 120 4,000 6.60 3.50  
The compressive strengths shown are approximate. As with ordinary concrete, the strength at any given density and mix proportion will also vary with the type of cement, the quality and fineness of the aggregate and the final water content of the mix.
Actual properties will also vary based on curing conditions and other variables as dictated by job conditions.

 



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