High-strength lightweight composite mortar board

A composite mortar, high-strength technology, applied in building components, ceramic molding machines, insulation, etc., can solve problems such as wrinkles, unevenness, and low molding quality of composite mortar boards, shorten service life, avoid excessive stress concentration, and achieve Effect of Resistance Continuity

Inactive Publication Date: 2021-10-26
王赛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the combination of the insulation board and the mortar layer, alkali-resistant mesh cloth is often laid in the mortar layer. The glass fiber alkali-resistant mesh cloth is based on medium-alkali or alkali-free glass fiber woven fabric and treated with alkali-resistant coating. Made. This product has high strength, good cohesiveness, conformability, and excellent positioning. It is widely used in wall reinforcement, external wall insulation, and roof waterproofing. It can also be used in cement, plastic, asphalt, marble, and mosaics. It can improve the mechanical strength of the surface layer, ensure the continuity of the resistance of the facing layer, disperse the shrinkage pressure and thermal insulation stress of the surface layer, avoid stress concentration, and resist natural temperature. Cracking of the surface layer caused by humidity changes and accidental impact, but the existing alkali-resistant mesh cloth is prone to local unevenness or wrinkles during laying, even after artificial adjustment, it is still inevitable in the later mortar pouring and covering process The above phenomenon occurs, and it is not easy to be found, which leads to the low molding quality of the composite mortar board

Method used

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  • High-strength lightweight composite mortar board
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  • High-strength lightweight composite mortar board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] see figure 1 , a kind of high-strength lightweight composite mortar board, its preparation method comprises the following steps:

[0046] S1. Groove and roughen the surface of the insulation board, and then apply mortar to the grooved surface of the insulation board to form the bottom layer;

[0047] S2. Lay an alkali-resistant grid cloth on the bottom layer of the mortar, and a pair of tensile bars 1 are distributed obliquely and symmetrically on the alkali-resistant grid cloth;

[0048] S3, heating the stretching strip 1 to force its inflatable bulge to stretch, so as to independently level the alkali-resistant grid cloth;

[0049] S4. Coat the mortar again on the alkali-resistant grid cloth, and then sequentially maintain, wash the edge, trim it, and finally store it in the warehouse.

[0050] see figure 2 , the stretching strips 1 are distributed diagonally on the alkali-resistant mesh cloth, and a pair of stretching strips 1 are respectively located on the uppe...

Embodiment 2

[0056] see Figure 6-8 , compared with Example 1, the inner heat conduction wire 12 is replaced by a plurality of inner drum airbags 14a and a plurality of hot-melt particles 15, and ammonium bicarbonate powder is filled in the inner drum airbags 14a, and the inner drum airbags 14a are evenly distributed in the hollow The inner side of the bag strip 11 is fixedly connected with its inner wall, and the hot-melt particles 15 are evenly distributed between the inner drum air bags 14a. When heated, the ammonium bicarbonate in the inner drum air bag 14a decomposes rapidly to generate gas to force it to expand to both sides, and at the same time heat melt The particles 15 are heated and melted into a flowable state, and are concentrated between a pair of adjacent inner drum air cells 14a under the extrusion action of the inner drum air cells 14a. While realizing the stretching of the hollow cell strip 11, the adjacent inner drum cells Blocks with certain hardness are formed between ...

Embodiment 3

[0060] see Figure 9-10 , compared with embodiment 1, the inner heat conduction wire 12 is replaced by a plurality of internal control airbags 14b, the internal control airbags 14b are evenly distributed inside the hollow bag bar 11 and fixedly connected to its inner wall, and the internal control airbags 14b include an inner drum airbag 14a and a pair of air leakage Compared with Example 2, the hot-melt particles 15 are discarded and the air leakage point is introduced. The air leakage point is symmetrically inlaid at the upper and lower ends of the inner drum airbag 14a, and the air leakage point extends to the outside of the hollow bag strip 11. Ammonium bicarbonate The powder is filled in the inner drum airbag 14a, and the inner drum airbag 14a is first heated to generate gas for self-expansion, and squeezes the air in the hollow bag strip 11 to fill, and finally realizes the bulge stretching of the hollow bag strip 11, and under certain conditions The air leakage phenomen...

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Abstract

The invention discloses a high-strength lightweight composite mortar board, and belongs to the technical field of building materials. The high-strength lightweight composite mortar board can be heated in the construction process in a manner of diagonally bonding stretching strips on alkali-resistant gridding cloth, so that the interior of the alkali-resistant gridding cloth can be inflated and swelled, and the original compression state is converted into the stretching state, the alkali-resisting gridding cloth is pulled to be autonomously leveled while being fully stretched, it is guaranteed that the alkali-resisting gridding cloth is flatly laid in mortar without wrinkles, resistance continuity in the mortar is effectively achieved, excessive stress concentration is avoided, and compared with existing alkali-resisting gridding cloth which needs to be manually adjusted during laying, the phenomenon of local unevenness or wrinkling still occurs in the mortar pouring process, the effect of the alkali-resisting gridding cloth is greatly reduced, the overall strength of the composite mortar board is low, and the service life of the composite mortar board is shortened.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a high-strength lightweight composite mortar board. Background technique [0002] Composite mortar, also known as polymer mortar, refers to high-strength cement mortar mixed with modified epoxy emulsion or other modified copolymer emulsion. Composite mortar suitable for load-bearing structures should not only improve its own physical and mechanical properties, but also significantly improve its ability to anchor steel bars and bond concrete. [0003] Composite mortar is often used in building insulation systems to form a composite mortar board with an insulation board in the middle and a mortar layer on the surface. It not only has high strength, but also is lightweight and has excellent thermal insulation performance, so it is widely used in the field of modern construction. [0004] In the combination of the insulation board and the mortar layer, alkali-resistant me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/30B28B23/00E04B1/80
CPCB28B1/30B28B23/00E04B1/80
Inventor 王赛王秀勤
Owner 王赛
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