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

Masonry mortar and method for preventing and treating saltpetering of plain brick wall

A technology for masonry mortar and brick wall, which is applied in the field of masonry mortar for the prevention and treatment of efflorescence of clear water brick walls, can solve problems such as affecting the appearance and quality, optimize safety and quality of use, avoid missed coating, and improve resistance. The effect of alkalinity

Pending Publication Date: 2021-10-08
SHANGHAI BUILDING DECORATION ENG GRP
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the existing traditional clear water brick wall precipitates white crystals on the surface of the wall body and does not fade all the year round, which affects the appearance and quality. Mortar and construction method

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
  • Masonry mortar and method for preventing and treating saltpetering of plain brick wall
  • Masonry mortar and method for preventing and treating saltpetering of plain brick wall
  • Masonry mortar and method for preventing and treating saltpetering of plain brick wall

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The masonry mortar mix ratio used for the prevention and treatment of efflorescence in dry-water brick walls is shown in Table 1-1:

[0038] Table 1-1 The masonry mortar mix ratio (kg / m 3 )

[0039] low alkali cement Quartz sand Cellulose Ether Antipantherine 180 820 0.25 8

[0040] The measured working and mechanical properties of the masonry mortar used for the prevention and treatment of efflorescence in fair-water brick walls are shown in Table 1-2:

[0041] Table 1-2 Work performance and mechanical properties of masonry mortar used for the prevention and treatment of efflorescence in fair-water brick walls

[0042] Consistency (mm) Water retention rate (%) Coagulation time (min) 28-day compressive strength (MPa) 72 98.5 550 14.8

[0043] After analysis, there is no pan-alkaline phenomenon, which meets the anti-pan-alkali requirements of fair-faced brick walls.

Embodiment 2

[0045] The mix ratio of masonry mortar used for the prevention and treatment of efflorescence in fair-water brick walls is shown in Table 2-1:

[0046] Table 2-1 The masonry mortar mix ratio (kg / m 3 )

[0047] low alkali cement Quartz sand Cellulose Ether Antipantherine 190 810 0.25 8

[0048] The measured working performance and mechanical properties of the masonry mortar used for the prevention and treatment of efflorescence in fair-faced brick walls are shown in Table 2-2:

[0049] Table 2-2 Work performance and mechanical properties of masonry mortar used for the prevention and treatment of efflorescence in fair-water brick walls

[0050] Consistency (mm) Water retention rate (%) Coagulation time (min) 28-day compressive strength (MPa) 75 98.8 510 15.2

[0051] After analysis, there is no pan-alkaline phenomenon, which meets the anti-pan-alkali requirements of fair-faced brick walls.

Embodiment 3

[0053] The mix ratio of masonry mortar used for the prevention and treatment of efflorescence in fair-water brick walls is shown in Table 3-1:

[0054] Table 3-1 Mixing ratio of masonry mortar for prevention and treatment of efflorescence in dry brick walls (kg / m 3 )

[0055] low alkali cement Quartz sand Cellulose Ether Antipantherine 170 830 0.25 8

[0056] The measured working performance and mechanical properties of the masonry mortar used for the prevention and treatment of efflorescence in fair-water brick walls are shown in Table 3-2:

[0057] Table 3-2 Work performance and mechanical properties of masonry mortar used for the prevention and treatment of efflorescence in fair-water brick walls

[0058] Consistency (mm) Water retention rate (%) Coagulation time (min) 28-day compressive strength (MPa) 78 96.7 545 13.8

[0059] After observation, there is no pan-alkaline phenomenon, which meets the anti-pan-alkaline re...

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

No PUM Login to View More

Abstract

The invention relates to masonry mortar and a method for preventing and treating saltpetering of a plain brick wall, belonging to the technical field of building decoration engineering construction. The invention aims to overcome the problems that the attractiveness and quality an existing traditional plain brick wall are affected since white crystals are precipitated on the surface of a wall body of the existing traditional plain brick wall and do not fade all the year round. The masonry mortar is prepared by matching low-alkali cement, quartz sand, cellulose ether and an alkali efflorescence resisting agent according to a certain ratio. The method sequentially comprises the steps of pre-elimination of salt for a single brick, pre-hydrophobic treatment, wall body building with the masonry mortar for prevention and treatment of the plain brick wall, brick joint cleaning, bottom joint pointing, surface joint pointing, salt elimination for a wall body, surface enhancement of the wall body and surface hydrophobic treatment. According to the method, from the angles of masonry materials and improvement of a construction process, low-alkali cement with low alkali content is selected and is blended into mortar; and single bricks are pretreated and then laid, so construction is rapid, the safety and the use quality of the plain brick wall are optimized, and the overall style and appearance of a historical building are improved.

Description

technical field [0001] The invention belongs to the technical field of architectural decoration engineering construction, and in particular relates to a masonry mortar and a method for preventing and treating efflorescence of clear water brick walls. Background technique [0002] Clear water brick wall is the most important building material of Chinese historical buildings. The most common problems are pan-alkali, pulverization, and shelling caused by water-soluble salt. The repair effect determines whether the old building can be rejuvenated and the charm will last . For the restoration of clear water brick exterior walls, the conventional repair technology is to use conventional cement mortar or lime paste to build clear water bricks. Due to the high alkaline content in the masonry materials, the brick wall is prone to flooding in a short period of time after construction is completed. Alkali phenomenon; and the traditional salt removal treatment takes about 10 days to pe...

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 Applications(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B2111/00508C04B14/06C04B24/383C04B2103/0068
Inventor 连珍孔彬虞嘉盛江旖旎叶智新刘天择孔劲松俞杰张浩栋朱家佳
Owner SHANGHAI BUILDING DECORATION ENG GRP
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