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Table 3 Mass changes due to leaching for concrete specimens of size Ø100 × 50 mm.

From: Physical and Mechanical Properties of Cementitious Specimens Exposed to an Electrochemically Derived Accelerated Leaching of Calcium

 

REF (g)

Aged (g)

Mass depletion

V depletiona

Porosity changeb

Leached portlandite (g)c

Porosity changed

W/C = 0.48

927

881

46.00

20.81

5.3

44.4

5.12

W/C = 0.62

907

878

29.00

31.12

3.3

29.6

3.41

  1. aCalculated assuming that total mass change is attributed to Portlandite depletion (V depletion = mass change/Portlandite density).
  2. bCalculated according to V depletion and considering the dimension of the specimens, Ø100 × 50 mm (Porosity Change = Vdepletion/total volume of specimen).
  3. cLeached Portlandite is according to measured leached calcium content in catholyte solution.
  4. dCalculated according to total leached Portlandite and considering the dimension of the specimens (Ø100 × 50 mm).