[Civil Engineering Version] Daily Question 20180417
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When heating pipes pass through reinforced concrete walls, it is necessary to ( ). a. Use a sleeve b. Add a water-stop ring to the sleeve c. Seal the back side with sealing material d. Install a flange on the other side of the water-facing side e. A cavity should be left between the sleeve and the pipe. Answer: abde
When heating pipes pass through reinforced concrete walls, they must ( abde ). a. Use a sleeve b. Add a water-stop ring to the sleeve d. Install a flange on the other side facing the water flow e. A cavity should be left between the sleeve and the pipeline in certain areas
e. A cavity should be left locally between the sleeve and the pipe