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Hydraulic Characterization of a Self-Weight Compacted Coal

somehow unreliable (e.g., [ 33 ], [ 34 ]). For these reasons, the hydraulic conductivity, in conjunction with the retention curve, can be deduced by means of an inverse numerical analysis of an infiltration process with known initial conditions of partial saturation (e.g., [ 35 ], [ 7 ], [ 36 ], [ 8 ], [ 37 ]). The physical model was prepared by filling the box with coal, previously left to dry at room temperature ( Figure 5a) and then poured in successive layers ( Figure 5b) to create the initial fabric of a self-weight compacted material. The coal of each layer

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Treatment of a collapsible soil using a bentonite–cement mixture

.65 Dry density, gd max (g/cm 3 ) 1.90 Optimum water content, W opt (%) 10.42 Bentonite (powder) Specific surface area , SSA (m 2 /g) 872.00 Bulk density, G s 2.72 Swelling index ,SI (cm 3 /g) 35.00 Plate water absorption ,PWA (%) 885.00 Blue methylene value, MBV 29.41 pH 9.90 Plasticity index, I p (%) 117.54 Cement (CPJ 42.5 CEM II/A) Specific weight ,Gs (g/cm 3 ) 3.04 Normal consistency , NC (% H 2 O) 27.44 Shrinkage , Wr (mm/m) 417.00 Refusal on sieve 45 mm, RS

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