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Ultra-high-performance concrete combined permanent template and application thereof

A permanent formwork and ultra-high-performance technology, applied in water conservancy projects, bridge parts, artificial islands, etc., can solve problems affecting structural durability, leakage, etc., and achieve the effect of improving structural durability, improving durability, and low cost

Pending Publication Date: 2019-06-07
SOUTH CHINA UNIV OF TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the combined permanent formwork is used, there will inevitably be formwork seams. The formwork joints are the weak link of the structural members, and the leakage caused by them is also the main problem affecting the durability of the structure. How to effectively solve this problem The problem is one of the key issues of whether the ultra-high performance concrete combined permanent formwork can be used

Method used

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  • Ultra-high-performance concrete combined permanent template and application thereof
  • Ultra-high-performance concrete combined permanent template and application thereof
  • Ultra-high-performance concrete combined permanent template and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of ultra-high performance concrete combined permanent formwork of this embodiment, its structural schematic diagram is as follows Figure 1~5shown. The outer side of the permanent template is a plane with a size of 900×600 mm and a plane thickness of 15 mm. The plane material is ultra-high performance concrete reinforced with organic fiber mesh; the inner side is ribbed, and the ribs are arranged horizontally and vertically. Set 3 ribs 102, the width of the ribs is 30mm, and the height of the ribs does not exceed the height of the edge; the thickness of the four edges is 30mm, and a tongue and groove is provided, and the overlapping part of the tongue and groove is a hydrophobic surface; the upper edge of the permanent formwork and The tongue-and-groove of the lower edge is set as a corresponding semicircular protrusion 401 and groove 402 to form a card slot with a height or depth of 10mm. The grooves on the left and right sides are set as a corresponding rectan...

Embodiment 2

[0048] An ultra-high-performance concrete combined permanent formwork in this embodiment, the outer side of the permanent formwork is a plane, the size is 3000×2400mm, the plane thickness is 30mm, and the plane material is ultra-high-performance concrete reinforced by stainless steel wire mesh; the inner side is ribbed , the ribs are set horizontally and vertically, 2 ribs are set vertically, and 3 ribs are set horizontally, the width of the ribs is 40mm, and the height of the ribs does not exceed the height of the sides; The overlapping part is a hydrophobic surface; the tongue and groove on the upper and lower sides of the permanent formwork is set as a corresponding semicircular protrusion and groove to form a card slot, and its height or depth is 20mm. The tongue-and-groove of the left and right parts is set as a corresponding rectangular protrusion and depression, and its length is 50 mm. After tongue-and-groove lapping, a caulking groove is formed on the outside of the t...

Embodiment 3

[0055] An ultra-high-performance concrete combined permanent formwork in this embodiment, the outer side of the permanent formwork is a plane, the size is 4500×2400mm, the plane thickness is 40mm, and the plane material is ultra-high-performance concrete reinforced by stainless steel wire mesh; the inner side is ribbed , the ribs are set horizontally and vertically, 2 ribs are set vertically, 5 ribs are set horizontally, the width of the ribs is 50mm, and the height of the ribs is consistent with the height of the sides; the thickness of the four sides is 80mm, and the grooves and grooves are set. The lap joint is a hydrophobic surface; the tongue and groove on the upper and lower sides of the permanent template is set as a corresponding arc-shaped protrusion and groove to form a card slot, and its height or depth is 30mm. The tongue-and-groove of the left and right parts is set as a corresponding rectangular protrusion and depression, and its length is 100 mm. After tongue-an...

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Abstract

The invention belongs to the technical field of building materials, and discloses an ultra-high-performance concrete combined permanent template and application thereof. The outer side of a permanenttemplate is flat or curved surface, and the inner side is ribbed; the four side portions are thickened, and a tongue-and-groove is formed, and a lap joint of the tongue-and-groove is hydrophobic; andafter the tongue-and-groove is lap jointed, a caulking groove smaller on the outside and bigger on the inside is formed in the outer side of a template. According to the high-performance-concrete combined permanent template, a tongue-and-groove design is used on all four sides, on the one hand, the penetration length of an external substance is greatly increased; on the other hand, a lap joint surface of the tongue-and-groove is hydrophobic, infiltration of the external substance can be effectively prevented by coating a hydrophobic paste before installation, and durability can be effectivelyimproved; ultra-high-performance concrete is used as a caulking agent, the caulking groove and a bolt hole are both smaller on the outside and larger on the inside, release of an ultra-high performance concrete caulking agent can be effectively prevented, and structural durability is improved.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an ultra-high performance concrete combined permanent formwork and its application. Background technique [0002] Formwork engineering develops along with the development of concrete engineering, and has a long history both at home and abroad. The permanent formwork, also known as one-time consumption formwork, means that the formwork will not be dismantled after the cast-in-place concrete structure is poured, and the permanent formwork is used as a protective layer or combined with the cast-in-place structure to form a common force-bearing member. It has the advantages of simplified construction process, easy operation, improved working conditions, no or less formwork support, saving formwork support and dismantling labor, and speeding up construction progress. At present, the main materials are steel and fiber reinforced plastics. Although the production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E02D29/02
CPCE01D19/02E02D29/02
Inventor 杨医博陈勇谢祥明刘福财郭文瑛汪永剑张信祯李光舜姚楚康李斌肖敏王恒昌赵轩进罗家豪
Owner SOUTH CHINA UNIV OF TECH
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