Sand is the most abundant ingredient in the mix. The powdered cement and lime are the glue that holds the sand together and allows the mortar to bond to each brick (or concrete block, stone or other ...
You may not know this, but I received a bachelor of science degree in geology many moons ago. I was fascinated by the topic, ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果