(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
Figure 6: SEM images of cement-emulsified asphalt paste samples: on the 7th day, (a) without emulsified asphalt and clay, (b) with emulsified asphalt, (c) with clay, and (d) with emulsified asphalt and clay; on the 28th day, (e) without emulsified asphalt and clay, (f) with emulsified asphalt, (g) with clay, and (h) with emulsified asphalt and clay.