Figure 4
From: A new expansion material used for roof-contacted filling based on smelting slag
Properties and microstructure of expansive materials with different doses of CTAB. (a) compressive strength, (b) XRD pattern of C-2 cured for 3 d, 7 d, 28 d, (c) density, (d) porosity, (e,f,g,h) SEM images of C-2 cured for 3 d, 7 d, 28 d and the microgram of group C-2 cured for 28 d.
