The inca wall in Raqchi, the mini roofs have been added recently to protect the wall. When building with adobe it was the tradition of the Aymara to add vegetal matter to the mix. There are a lot of cacti in this area and the addition of this to the adobe brick mix meant that it acted as a gum and therefore protected the adobe from rain water. Also it is interesting that the inca built out of adobe at all. They are famous for their stone structures, but here they were meeting the border of the Aymara people that stretch into Bolivia so a combination of materials was used. |
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