C45/55 concrete

 

Concrete specification
Mix number: RC012
Strength class C45/55
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)
Water/cement ratio ≤ 0,45
Cement content
≥ 380 kg/m3
 
Constituents
Cement CEM III/B 42,5 HS (conform EN 197-1 NEN 3550: 1995)
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 October 14th, 2012  
  Penetration 4 mm
 
Water/cement ratio (Conform NEN 5960:2006)
  Sample date March 21th, 2012  
  x/c ratio 0,43  
 
Chloride Migration Coefficient (conformNT build 492)
  Sample date February 2nd, 2012  
  Single value 1.5 *10-12 m2s-1
    2.9 *10-12 m2s-1
    2.3 *10-12 m2s-1
  Average 2.2
*10-12 m2s-1
 
Frost resistance (conform NPR-CEM/TS 12390-9:2006, slab test)
  Sample date April 10th, 2011  
    0.064
kg/m2
    0.050
kg/m2
    0.062
kg/m2
    0.077
kg/m2
    0.078
kg/m2
  Average m56 0.066
kg/m2
 
Compressive strength (conform NEN-EN 1015-11):
  Sample nr. 257
  Sample date December 13th, 2012
  Density 2322 (kg/m3)   145.58 (lb/ft3)
  fck     55 (N/mm2) 7977 (PSI)
 
fci
    67.3 (N/mm2) 9767 (PSI)
 
fcm
    67.95 (N/mm2) 9855 (PSI)
  σ                5.03 (N/mm2)   730 (PSI)
  ck + 1,48 σ     62.44 (N/mm2) 9057 (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)