Cement mortar with high crack resistance and used for plastering and preparation method of cement mortar

A high crack resistance, cement technology, applied in the field of building mortar, can solve the problems of heavy vertical transportation burden, drying shrinkage temperature difference cracking, aggravating building load capacity, etc.

Inactive Publication Date: 2018-03-30
广西美展新材料科技有限公司
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As the traditional cement plastering mortar commonly used for building wall leveling, due to its own structure, it needs to be thickened by 1-3cm, which not only increases the load of t

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] Refer to Table 1, a high-crack-resistant cement batch mortar and its preparation method, which are mixed with the following components in weight ratio: ordinary Portland cement 25, heavy aggregate 65, fine aggregate 8.8, composite auxiliary Agent 1.2.

[0024] Ordinary Portland cement is black or white cement of model R325; the heavy aggregate is ordinary river sand; the fine aggregate is calcium carbonate; the composite additive is composed of redispersible latex powder and cellulose ether , Calcium formate, wood fiber, polypropylene anti-cracking fiber mixed.

[0025] The fineness number of calcium carbonate is 325 mesh; the fineness mesh number of the ordinary river sand is 40-140 mesh, the redispersible latex powder is 0.5 parts by weight, the cellulose ether is 0.25 parts by weight, Calcium formate is 0.2 parts by weight, the wood fiber is 0.15 parts by weight, and the polypropylene crack-resistant fiber is 0.1 parts by weight.

[0026] The preparation...

Example Embodiment

[0033] Example 2

[0034] Refer to Table 1, a high-crack-resistant cement batch mortar and its preparation method, which are mixed with the following components in weight ratio: ordinary Portland cement 28, heavy aggregate 60, fine aggregate 10.8, composite auxiliary Agent 1.2.

[0035] Each component was taken according to the weight shown in Example 2 in Table 1, and the production process described in Example 1 was repeated (only the weight of each component was changed) to obtain the high crack-resistant cement batch mortar of Example 2. Different from Example 1, the compressive strength and bonding strength are improved, and the functionality is enhanced.

Example Embodiment

[0036] Example 3

[0037] Refer to Table 1, a high-crack-resistant cement batch mortar and its preparation method, which are mixed with the following components in weight ratio: ordinary Portland cement 25, heavy aggregate 65, fine aggregate 8.8, composite auxiliary Agent 1.2.

[0038] Each component is taken according to the weight shown in Example 3 in Table 1, and the production process described in Example 1 is repeated (only the weight of each component is changed) to obtain the high crack-resistant cement batch mortar of Example 3, which is different from the examples. 1 and 2, enhanced bonding strength, improved water retention rate and shrinkage rate.

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 cement mortar with high crack resistance and used for plastering and a preparation method of the cement mortar and in particular relates to the field of building mortar. The mortar is prepared by mixing the following components in weight ratio: 20-30 of ordinary Portland cement, 55-65 of heavy aggregates, 8-12 of fine aggregates and 1.2 of compound additive; the compound additive is prepared by mixing the following components in parts by weight: 0.5 part of redispersible latex powder, 0.25 part of cellulose ether, 0.2 part of calcium formate, 0.15 part of wood fibers and 0.1 part of crack-resistant polypropylene fibers; and a finished product can be packaged by separately adding the ordinary Portland cement, the fine aggregates, the compound additive and the heavyaggregates into a stirrer in sequence and carrying out uniform stirring. The cement mortar does not contain any volatile solvents and harmful heavy metals, is environment-friendly inorganic mortar andis simple and practical in production process, good in crack resistance and high in shock resistance.

Description

technical field [0001] The invention relates to the field of building mortar, in particular to a high-crack-resistant cement mortar and a preparation method thereof. Background technique [0002] At present, in the field of construction mortar, commercial concrete is in the process of rapid and stable development, and commercial mortar is only a new trend in the development of urban architectural decoration industry. Ordinary dry powder mortar has already belonged to the category of new products, and the anti- Crack functionality is rarely involved. [0003] As the traditional cement plastering mortar commonly used for building wall leveling, due to its own structure, it needs to be thickened by 1-3cm, which not only increases the load of the building, but also has many consumables, heavy vertical transportation burden, low construction efficiency, and extremely It is easy to cause drying shrinkage and temperature difference cracking. [0004] In view of the above-mentione...

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
IPC IPC(8): C04B28/04C04B111/34
CPCC04B28/04C04B2111/00482C04B2111/343C04B2201/10C04B2201/50C04B14/06C04B14/28C04B24/383C04B24/04C04B18/26C04B16/0633C04B2103/0057
Inventor 凌昭钰黎镪林飞
Owner 广西美展新材料科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap