Cement mortar lining anti-spiral steel pipe
Release date：2016-11-07
Lined with cement mortar anti-corrosion steel pipe refers to the pipe inside the pipe body of cement mortar corrosion resistant treatment. Lined with cement mortar lined with anti-corrosion steel pipe filled with concrete, can absorb a lot of heat, so when subjected to fire column cross-section of the temperature field distribution is uneven, increasing the column refractory time, slow down the steel column heating rate, And once the steel column yield, concrete can withstand most of the axial load, to prevent the collapse of the structure. The fire resistance of the composite beam will also increase as the temperature of the steel beam will reduce the heat transfer from the top flange to the concrete. The experimental statistics show that: to achieve a fire-resistant requirements and 3 hours compared to the steel column can save fire-resistant coating 1 / 3-2 / 3 or more, with the pipe diameter increases, save more paint. Water pipe Through the centrifuge or pipe spraying machine in the steel pipe wall to form a cement coating, mainly to extend the service life of water pipes to protect water quality, improve pipeline water transport capacity. Implementation of standards: CECS10: 89 or GB50268-2008
