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

A technology for steel fiber reinforced concrete and a production method, which is applied in chemical instruments and methods, clay preparation devices, mixing operation control, etc., can solve the problems of shortening the service life of concrete poles, poor deformation performance, easy cracking, etc., and achieves the improvement of compactness. , The effect of improving the resistance to external pressure load and improving the strength

Inactive Publication Date: 2007-05-09
HENNAN ELECTRIC POWER SURVEY & DESIGN INST
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Problems solved by technology

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

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

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[0018] The method for producing steel fiber concrete cable-free electric pole according to the present invention is carried out according to the following process steps:

[0019] a. According to the design requirements, make the steel frame of the electric pole product, and put the formed steel frame into the steel mold to adjust the positioning;

[0020] b. Preparation of wet concrete:

[0021] The mixing ratio of the wet concrete 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 , The particle size of the stone ≤0.25 is 0.25 times the wall thickness of the designed pole product; the volume ratio of the steel fiber contained: 0.8%~2.0%; the diameter of the steel fiber is 0.3mm~1.2mm; the length of the steel fiber is: 25mm~40mm;

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

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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...

Claims

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Application Information

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IPC IPC(8): B28B21/32B28C7/04B28C5/00
Inventor 张天光韩文德宋晓磊赵顺波孙东海惠旭王杰李东亮郭咏华付明翔韩为民李凤兰
Owner HENNAN ELECTRIC POWER SURVEY & DESIGN INST
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