Mould and method for preparing ultra-high performance concrete pipeline

Abstract

The invention discloses a mould for preparing an ultra-high performance concrete pipeline. The mould comprises an outer steel mould and an inner steel mould with grouting holes, wherein a steel wedge block is arranged at a joint of the inner steel mould; the steel wedge block is supported on an inner wall of the inner steel mould through a wedge block; the inner steel mould is formed by splicing two steel components and a rubber part which is connected between the two steel components; fixing devices for clamping and fastening the inner steel mould are arranged at the two ends of the inner steel mould. The invention also discloses a method for preparing the ultra-high performance concrete pipeline by adopting the mould. According to the mould, the steel mould is combined with the rubber, so that the advantages of high rigidity and capability of bearing higher pumping pressure of the steel mould are utilized, the excellent deformability of the rubber is also utilized, and the shrinkage crack phenomenon of the pipeline is effectively eliminated.

Description

technical field [0001] The invention belongs to the design and manufacture field of water supply and drainage building materials, in particular to a mold and a method for preparing ultra-high performance concrete pipes. Background technique [0002] The existing municipal water supply and drainage system projects mainly use steel pipes, concrete pipes and plastic pipes. Steel pipe has good strength, can withstand high external pressure and internal pressure, and has strong adaptability, but it is extremely easy to corrode, so it is not suitable for buried pipelines and transportation of corrosive media. Concrete pipes have poor resistance to penetration and corrosion, and low coefficient of friction on the pipe wall. The plastic pipe wall is smooth, light, non-permeable and pollution-free, but its rigidity is poor, it is easy to deform under huge dynamic water pressure, and the material is light, and it is prone to floating in some areas, which makes the daily maintenance a...

AI Technical Summary

Problems solved by technology

[0005]These two concrete pipe forming methods have their own advantages and disadvantages, but none of them can adapt to the forming of ultra-high performance concrete pipes

The ultra-high-performance concrete used in ultra-high-performance concrete pipes contains steel fibers and does not contain coarse aggregate. It is easy to cause delamination of ultra-high-performance concrete when it is formed by centrifugal method, and it is difficult to form a pipe body when it is formed by suspension roller method.

Images