Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of board seam extrusion material for ALC exterior wall board and preparation method thereof

A technology for exterior wall panels and panel seams, which is applied in the field of structural sealing materials, can solve problems such as failure of sealing and waterproof functions, complex maintenance, and meet requirements at the same time, so as to improve sealing performance and flexibility, low volume change rate, and ensure engineering quality. Effect

Active Publication Date: 2021-01-15
BEIJING BBMG AUTOCLAVED AERATED CONCRETE
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, this sealing treatment method has high technical requirements for construction workers, and it is easy to cause problems such as insufficient filling and failure of sealing and waterproof functions; The service life is shortened, the later maintenance is complicated and the cost is high; in addition, the price of organic sealants is expensive, and all use of organic sealants will lead to high construction costs
[0005] In order to overcome the defects in the use of existing sealants, the researchers studied the supporting materials used in the assembly process of the existing ALC boards, but the results showed that most of the matching mortars were unable to improve the bonding performance, elongation at break, and self-healing properties of micro-cracks. , low water absorption and other aspects meet the requirements at the same time, it is only suitable as an adhesive for the assembly of interior wall panels, not suitable for the sealing of ALC exterior wall panels
[0006] The supporting materials of existing autoclaved aerated concrete blocks are masonry mortar and plastering mortar. , The self-repairability is poor, and it can't meet the requirements of grouting treatment during the installation of autoclaved aerated concrete slabs

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of board seam extrusion material for ALC exterior wall board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1 A kind of board seam extrusion material

[0043] The formula of the board seam extrusion material is as follows:

[0044] In parts by weight, 80 parts of α-type high-strength gypsum, 3 parts of 52.5# sulfoaluminate cement, 3 parts of carbon nanotubes, 10 parts of pure acrylic emulsion, 6 parts of self-repairing masterbatch (I), 2 parts of anhydrite, P803 0.1 part, 15 parts of heavy calcium powder, 8 parts of emulsified paraffin, 0.1 part of low viscosity HPMC, 0.1 part of lignocellulose, and 0.03 part of citric acid.

Embodiment 2 Embodiment 1

[0045] Embodiment 2 The preparation method of the slotted pulping material described in Embodiment 1

[0046] Concrete preparation steps include:

[0047]Before using the resin emulsion, fully mix 1-3 parts of cement or α-type high-strength gypsum powder with the emulsion. When using the self-healing masterbatch, the self-healing masterbatch and emulsified paraffin should be fully mixed and stirred in advance. In a certain amount of water, add each powder according to the above formula, and stir for 3 minutes. Then add the pre-mixed resin emulsion and self-healing masterbatch, and the ratio of water to material is 0.25-0.30.

Embodiment 3

[0048] Embodiment 3 A kind of board seam extrusion material

[0049] The formula of the board seam extrusion material is as follows:

[0050] In parts by weight, 40 parts of 52.5 sulfoaluminate cement, 2 parts of α-type high-strength gypsum, 6 parts of carbon nanotubes, 15 parts of pure acrylic emulsion, 4 parts of self-repairing masterbatch (II), 4 parts of anhydrite, P803 0.1 36 parts of quartz sand, 6 parts of emulsified paraffin, 0.1 part of low viscosity HPMC, 0.1 part of lignocellulose, 0.03 part of tartaric acid.

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
Login to View More

PUM

PropertyMeasurementUnit
compressive strengthaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a slab joint shoving material for an ALC external wallboard and a preparation method thereof. The slab joint shoving material is prepared from, by weight, 30-97% of a cementing agent, 1-10 parts of a self-repairing master batch, 1-5 parts of a volume stabilizer, 0-1 part of a defoaming agent, 0-60 parts of filler, 1-10 parts of emulsified paraffin, 0.1-2 parts of a water retaining agent, 0.1-1 part of a thixotropic agent and 0-1 part of a condensing time regulating agent. The slab joint shoving material has the good bonding strength, tensile breaking strength and breaking elongation at break and has the low volume change rate, water absorbing rate and water absorbing speed; meanwhile, the slab joint shoving material further has the certain micro-crack self-repairing, sealing performance and flexibility, and ensures the engineering quality of an autoclaved aerated concrete external wallboard.

Description

technical field [0001] The invention belongs to the field of structural sealing materials, and in particular relates to a board seam grouting material used for splicing autoclaved aerated concrete exterior wall boards and a preparation method thereof. Background technique [0002] With the rapid development of prefabricated buildings, the application of autoclaved aerated concrete strips (ALC) is becoming more and more extensive, which can be used as interior partition walls, floor slabs and exterior wall panels of prefabricated buildings. [0003] The assembly of ALC exterior wall panels usually adopts the close-fitting method of "composite and female grooves". However, in the actual use process, due to the displacement and deformation of the building structure between layers, thermal expansion and contraction of the indoor and outdoor walls, and heat conduction, etc., the panel gaps are likely to occur. In the event of cracking, waterproof damage, light transmission, etc.,...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14
Inventor 张晔张吉秀苗元超刘计康段赛红
Owner BEIJING BBMG AUTOCLAVED AERATED CONCRETE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com