Table 1 Designed soil sample composition: degree of calcareousness defined according to Day’s 1983 classification of calcareous soils, cited in Kishchuk [27]
Sample | Composition | |||||
|---|---|---|---|---|---|---|
Before carbonation | Theoretical expected after carbonation | |||||
% Silt (quartz) | % Clay (kaolin) | Clay/silt ratio | % Ca(OH)2 | % CaCO3 | Calcareousness | |
A0 | 50 | 50 | 1 | 0 | 0 | None |
B0 | 35 | 65 | 1.9 | 0 | 0 | None |
C0 | 20 | 80 | 4 | 0 | 0 | None |
A1 | 45 | 45 | 1 | 9 | ~ 12% | Moderately |
B1 | 31 | 59 | 1.9 | 9 | ~ 12% | Moderately |
C1 | 18 | 72 | 4 | 9 | ~ 12% | Moderately |
A2 | 40 | 40 | 1 | 20 | ~ 25% | Strongly |
B2 | 28 | 52 | 1.9 | 20 | ~ 25% | Strongly |
C2 | 16 | 64 | 4 | 20 | ~ 25% | Strongly |
A3 | 33 | 33 | 1 | 33 | ~ 40% | Very strongly |
B3 | 23 | 43 | 1.9 | 33 | ~ 40% | Very strongly |
C3 | 13 | 53 | 4 | 33 | ~ 40% | Very strongly |