Research on Preparation and Performance of Clay-Based Shield Tunnel Nonsintered Bricks

Figure 8

The influence of different content of lime (a), fly ash (lime 30%) (b), cement (lime 30%) (c), fly ash (lime 10%, cement 5%) (d), and polyvinyl alcohol (lime 10%, cement 5%, fly ash 40%) (e) on the pore size distribution and porosity.

(a)

(b)

(c)

(d)

(e)