Universal Portland Cement Co., C. W. Boynton · Universal Portland Cement Co. · leaf 31
Figure 12. … Figure 13. The effects produced by expansion in walks are clearly shown in Figures12 and 13. In Figure 12, two slabs of the walk have been destroyed by expansion,while in Figure 13 the curb against which the walk was constructed has beenbroken away. It can be clearly seen in Figure 13 that the walk…
