| 摘要 |
<p>PURPOSE:To permit the relative slide of one to the other of the surface cladding layer and the foam material layer even when the surface cladding layer has been secured to a concrete into which the copper pipe is embedded, so as to mitigate the stress concentration, by causing the surface cladding layer on that foam material layer applied to the surface of the copper pipe, to be kept not secured onto that foam material layer. CONSTITUTION:A copper pipe with a cladding thereover, has a copper pipe 10 which is provided, on its surface, with a foam-material layer 12 which is provided, on its surface, with a surface cladding layer 14. This surface cladding layer 14 is not caused to adhere onto the foam-material layer 12 but is provided in a non-fused condition. In the cladding material, relative slide of one to the other of the foam-material layer 12 and the surface cladding layer 14 in the direction of the pipe axis is permitted. By this, when embedding the cladding copper pipe in a concrete to perform the pipe disposition, the slide between the surface cladding layer 14 and the foam-material layer 12 is permitted even if the surface cladding layer 14 is secured to the concrete. Thus, it is possible to ease the by-concrete fixed state of a clad copper pipe end supporter portion to mitigate the stress concentration.</p> |
