Written by: Xuân Phi, 16/11/2022
Supported by: Ex-BC Examiner, 16/11/2022
Question: The diagram shows a process of making a storage area from a material called concrete canvas.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant
The process illustrates how a storage area is constructed from concrete canvas. Overall, there are 8 stages in this process, starting with manufacturing concrete canvas, followed by constructing a repository from the canvas and finally ending with this place being put into use for storage.
In the first step, concrete canvas is manufactured from three different materials. The surface is made from a fibrous substance while the bottom layer is designed for waterproofing and dry concrete is utilized in the middle. Subsequently, the concrete canvas is transported to a new location where the canvas will be unwrapped.
In the next stage, the concrete canvas is tied to one end of a rope and the other end is fastened to a truck. The truck moves slowly to drag the cloth until the length of the canvas is 10 meters and pegs are inserted into its four corners to fix it on the ground. Following that, air is pumped into the canvas by a machine to inflate it to a height of 8 meters and a door is installed in front of the tent. After that, water is sprayed onto the canvas to solidify it. Finally, it takes about 20-24 hours to allow the interior to set before the concrete canvas tent is ready to be used for storage purposes.
(Word count: 218)