×

You are using an outdated browser Internet Explorer. It does not support some functions of the site.

Recommend that you install one of the following browsers: Firefox, Opera or Chrome.

Contacts:

+7 961 270-60-01
ivdon3@bk.ru

Identification of the causes of defects in the pipes of the hot water supply system of an apartment building

Abstract

Identification of the causes of defects in the pipes of the hot water supply system of an apartment building

Shamanov V.A., Volosatova N.A.

Incoming article date: 06.08.2022

The existing hot water supply system of a 17-storey apartment building commissioned in 2010 is considered and its scheme is described. A laboratory study of the dismantled sections of the defective pipeline was carried out. It is shown that the entire inner surface of the pipe is covered with longitudinal cracks of uneven shape, different lengths and depths. A microscopic examination of the pipe section revealed areas of insufficient adhesion of the reinforcing layer with the inner layer of the polypropylene pipe. It is established that the main reason for the appearance of pipe defects in the form of numerous cracks, the formation of bubbles and fracture with a short service life is associated with the formation of a rupture of bonds between layers and the use of low-quality polypropylene pipes.

Keywords: pipe, polypropylene, defect, crack, swelling, water supply, reinforcing layer, technology, construction, aluminum