Method for manufacturing wire pole from steel fiber concrete with no bracing wire

Abstract

A method for manufacturing the electric transmission line post without pull cable A high-strength antiwear composite wood-plastics board is composed of an artificial core board with two adhesive layers on its both surface, and two veneers adhered respectively onto said two adhesive layers. Said veneer is chosen from high-density plywood, polyhydroamine solution immersed paperboard, and PCC plate. Said adhesive is chosen from MVF adhesive, high-adhesion emulsion adhesive and universal adhesive. Proportionally mixing cement, water, sand, broken stone and steel fibers, binding a skeleton with reinforcing bars, loading the skeleton in a mould, pouring said mixture in said mould, closing the mould, centrifugal shaping at a gradually increased rotation speed, and ordinary-pressure steam curing. Its product has no cracking.

Description

technical field

[0001] The invention relates to a production method of a concrete pole, in particular to a production method of a steel fiber concrete pole without a pull wire. Background technique

[0002] Concrete poles are widely used in overhead transmission lines, broadcasting, post and telecommunications, communication and lighting lines. Its advantages are mainly long service life, no need for regular maintenance, and low cost. But there are also deficiencies, such as delamination, cracking, and peeling inside and outside the concrete rod structure; cracks are easily caused by collisions and extrusions during stacking, lifting, and transportation; and the deformation performance is poor, and it is easy to crack due to temperature differences. ; The occurrence of the above phenomenon directly reduces the service life of the concrete pole. Therefore, how to improve the crack resistance of concrete poles, effectively reduce the crack width of concrete poles during actua...

Examples

Embodiment Construction

[0018] The production method of steel fiber concrete electric pole without guy wire of the present invention, it is to carry out according to following processing steps:

[0019] a. According to the design requirements, make the reinforced skeleton of the electric pole products, put the formed reinforced skeleton into the steel mold to adjust the positioning;

[0020] b. Preparation of concrete wet material:

[0021] The mixing ratio of the concrete wet material is: cement: 488.6~602.9kg / m 3 ;Water: 196~221kg / m 3 ;Sand: 727.1~687.8kg / m 3 ;Stone: 1013.8~897kg / m 3 , stone particle size ≤ 0.25 is 0.25 times the wall thickness of the design pole product; the volume ratio of the steel fiber contained: 0.8% to 2.0%; the diameter of the steel fiber is 0.3mm to 1.2mm; the length of the steel fiber is: 25mm to 40mm;

[0022] Using a forced mixer, first mix the steel fiber and stones evenly according to the above mixing ratio, then add sand and cement and mix evenly, and finally add...

technical field

[0001] The invention relates to a production method of a concrete pole, in particular to a production method of a steel fiber concrete pole without a pull wire. Background technique

[0002] Concrete poles are widely used in overhead transmission lines, broadcasting, post and telecommunications, communication and lighting lines. Its advantages are mainly long service life, no need for regular maintenance, and low cost. But there are also deficiencies, such as delamination, cracking, and peeling inside and outside the concrete rod structure; cracks are easily caused by collisions and extrusions during stacking, lifting, and transportation; and the deformation performance is poor, and it is easy to crack due to temperature differences. ; The occurrence of the above phenomenon directly reduces the service life of the concrete pole. Therefore, how to improve the crack resistance of concrete poles, effectively reduce the crack width of concrete poles during actua...

Examples

Embodiment Construction

[0018] The production method of steel fiber concrete electric pole without guy wire of the present invention, it is to carry out according to following processing steps:

[0019] a. According to the design requirements, make the reinforced skeleton of the electric pole products, put the formed reinforced skeleton into the steel mold to adjust the positioning;

[0020] b. Preparation of concrete wet material:

[0021] The mixing ratio of the concrete wet material is: cement: 488.6~602.9kg / m 3 ;Water: 196~221kg / m 3 ;Sand: 727.1~687.8kg / m 3 ;Stone: 1013.8~897kg / m 3 , stone particle size ≤ 0.25 is 0.25 times the wall thickness of the design pole product; the volume ratio of the steel fiber contained: 0.8% to 2.0%; the diameter of the steel fiber is 0.3mm to 1.2mm; the length of the steel fiber is: 25mm to 40mm;

[0022] Using a forced mixer, first mix the steel fiber and stones evenly according to the above mixing ratio, then add sand and cement and mix evenly, and finally add...

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