The most widespread type of masonry work is the erection of solid brick masonry using individual bricks set in mortar. âLight masonry,â consisting of two parallel face walls each one-half a brick thick and filled with a light concrete, loose slag, or another insulating material, is sometimes used.
A sinkhole, also known as a cenote, sink, sink-hole, shakehole, swallet, swallow hole, or doline (the different terms for sinkholes are often used interchangeably), is a depression or hole in the ground caused by some form of collapse of the surface layer.
A sinkhole, also known as a cenote, sink, sink-hole,[1] shakehole,[2] swallet, swallow hole, or doline (the different terms for sinkholes are often used interchangeably[3]), is a depression or hole in the ground caused by some form of collapse of the surface layer.