Application of non-woven fabric in isolating and sliding in building projects

A non-woven and needle-punched non-woven technology, applied in construction, bridge construction, bridge parts, etc., can solve problems such as affecting building safety and losing sliding function, and achieve the effects of ensuring safety, eliminating stress and improving service life.

Inactive Publication Date: 2010-09-15
ZHAOQING JOFO WEBFORMA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the sliding film of the middle layer is active, it will gradually move out of the upper and lower building components after a long time, so that part or all of the sliding function between the upper and lower building components will be lost, affecting the safety of the entire building

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Application of non-woven fabric in isolating and sliding in building projects
  • Application of non-woven fabric in isolating and sliding in building projects
  • Application of non-woven fabric in isolating and sliding in building projects

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Please refer to figure 1 and figure 2 As shown, in this example, polypropylene staple fiber needle-punched non-woven fabric is used to isolate the road surface on the bridge from the bridge body. The bridge body 3 is a rigid structure. During construction, the non-woven fabric 1 is laid on the bridge body 3, and then concrete mortar or road asphalt is poured on the non-woven fabric 1 to form the road surface 2 on the bridge. The road surface 2 is consolidated with the non-woven fabric 1 as a whole, but it is not consolidated with the bridge body 3, but is in free contact, which can produce a certain sliding effect. The sliding action can eliminate the sudden stress generated between the road surface and the bridge body, can eliminate the stress caused by temperature changes, can improve the performance of compression resistance, shear resistance, creep resistance, etc., and avoid cracking and damage of the road surface. service life of the pavement. At the same time...

Embodiment 2

[0031] Aiming at the problem that the isolation and sliding layer structure is easy to accumulate water and damp, which causes the steel bars in the concrete to rust and affects the structural strength and service life, the non-woven fabric is pre-treated with water repellency, which basically solves the problem of water accumulation and damp in the sliding layer structure. question. When applied to the isolation of rigid structures, the water-repellent polypropylene staple fiber needle-punched non-woven fabric is bonded to the surface of the base rigid structure with viscose, and then concrete mortar or asphalt mortar is poured on the non-woven fabric to form The upper rigid structure, the water-repellent non-woven fabric can delay or prevent concrete or asphalt mortar from penetrating into the isolation and sliding layer through the non-woven fabric, affecting the isolation and sliding effect.

Embodiment 3

[0033] For the special requirements of isolation and sliding, the surface of the non-woven fabric can be treated differently to adapt to different interfaces. Through heat treatment, the roughness of one side of the non-woven fabric can be controlled according to the requirements of the project, so that the coefficient of friction with the contact surface can be adjusted between 0.2-0.8 to ensure its sliding function and resistance requirements; the other side keeps short fibers The fluffy surface of the non-woven fabric makes it have a better degree of bonding and a larger coefficient of friction when combined with concrete or glue.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses application for non-woven fabric in isolating and sliding in building projects. The non-woven fabric is applied between two rigid or semi-rigid structures; and one face of the non-woven fabric is connected with a first rigid or semi-rigid structure, and the other face of the non-woven fabric is connected with a second rigid or semi-rigid structure. In the invention, the non-woven fabric is used for the isolation between two fixed structures, such as the isolation between road beds of railways, bridge surfaces and track slabs. The one or two isolated parts are relatively independent and convenient to separately maintain and repair. Meanwhile (or sometimes), one or two contacted faces have the sliding function to adapt to different displacement and deformation of the two isolated parts, eliminate the stress, guarantee the safety of the building projects, and improve the service life.

Description

【Technical field】 [0001] The invention relates to the field of material application, in particular to the application technology of non-woven fabrics. 【Background technique】 [0002] 200510097158.6 "Composite Geotextile for Highway" discloses a composite geotechnical material - composite geotextile, which is woven from one layer of geotextile and one layer of geogrid. Among them, the geotextile can use polyester filament needle-punched non-woven geotextile, and the geogrid can use glass fiber or carbon fiber or polyester fiber material; the two are stitched together by weaving. This kind of composite geotextile is combined with the road surface to provide reinforcement and prolong the service life of the road surface. In the prior art, geotextiles are also used to isolate different substances and media, prevent penetration and mixing between different substances and media, and maintain the stability of engineering structures and functions. [0003] The sliding layer is a n...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/06E01C11/16E01D19/08E01D19/12
Inventor 赵民忠邓洪
Owner ZHAOQING JOFO WEBFORMA CO LTD
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