C60/75 Silica concrete

 

Concrete specification
Mix number: RC104
Strength class C60/75
Exposure class X0(NL), XC1(NL), XC2(NL), XC3(NL), XC4(NL), XD1(NL), XD2(NL), XD3(NL), XS1(NL), XS2(NL), XS3(NL), XF1(NL) , XF2(NL) , XF3(NL) , XF4(NL), XA1(NL), XA2(NL) and XA3(NL)
Silica content 7% m/m cement
Air content 8%
Water/cement ratio ≤ 0.40
Cement content
≥ 590 kg/m3
 
Constituents
Cement CEM I 52,5 R NEN 3550: HS (conform NEN-EN 197-1 + NEN 3550)
Filler Silica Fume
Aggregates Sea Sand 0-4 (conform NEN-EN 12620 / Dutch NEN 5905)
  Sea Gravel 2-8 (conform NEN-EN 12620 / Dutch NEN 5905)
Water Tap water (conform NEN-EN 206-1 / Dutch NEN 8005)
 
Tests and results
Resistance to water penetration (Conform NEN-EN 12390-8)
  Sample date May 1th, 2014  
  Penetration 4 mm
 
Water/cement ratio (Conform NEN 5960:2006)
  Sample date May 1th, 2014  
  x/c ratio 0,38  
 
Frost resistance (conform Swedish SS 13 72 44)
  Sample date April 10th, 2011  
    0.12
kg/m2
    0.15
kg/m2
  Average m56 0.13
kg/m2
 
Compressive strength (conform NEN-EN 1015-11):
  Sample nr. 257
  Sample date December 13th, 2012
  Density 2282 (kg/m3) 142.46 (lb/ft3)
  fck 75 (N/mm2) 10351 (PSI)
 
fci
78.3 (N/mm2) 11351 (PSI)
 
fcm
89.91 (N/mm2) 13048 (PSI)
  σ            8.12 (N/mm2)   1178 (PSI)
  ck + 1,48 σ 87.02 (N/mm2) 12622 (PSI)
  Criteria 1 Conform (fcm ≥ fck + 1,48σ)
  Criteria 2 Conform (fci ≥ fck – 4)
fck = characteristic concrete cube compressive strength
fci  = individual concrete cube compressive strength
fcm = Average concrete compressive strength (n=15)
σ = Standard deviation concrete cube compressive strength (n=35)