Nonlinear finite element analysis of grouted and ungrouted hollow interlocking mortarless
block masonry system, Engineering Structures 30(6): 1560-1572.
So far, though, as I said, I have not been able to find one of those elusive, one-in-twenty mortarless
Great Zimbabwe (Figure 1) is one of more than 200 sites in southern Africa (Garlake 1970; Beach 1998) which display the architectural tradition of those monumental but mortarless
walls that have continued to attract archaeologists and the public alike (Ndoro 2001; Fontein 2006).
EXPERT TIP: Gravity and friction alone hold a dry, mortarless
wall together providing it is built by arranging large flat stones above and behind each other.
manhole and catch basin adjusting rings will provide a system that will eliminate future repair work.
barbecue and planter box: Calstone, www.