Unlock instant, AI-driven research and patent intelligence for your innovation.

A water-retaining anti-caking dry-mixed mortar

A dry-mixed mortar and anti-caking technology, applied in the field of construction mortar, can solve the problems of oxidation and agglomeration of dry-mixed mortar, and achieve the effects of improving the performance, simplifying the work process, and improving the use efficiency.

Active Publication Date: 2020-04-10
长沙三树新材料科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a water-retaining and anti-caking dry-mixed mortar to solve the problem that the existing dry-mixed mortar will oxidize and agglomerate before use

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

Embodiment 1

[0013] A water-retaining anti-caking dry-mix mortar, comprising the following raw materials in parts by weight: 28 parts of cement, 8 parts of fly ash, 2.2 parts of silica fume, 40 parts of aggregate, 15 parts of modified wood fiber, and 0.3 parts of compounding additives; Described composite auxiliary agent is obtained by mixing sodium thiosulfate, zinc stearate, sodium sulfamate and calcium formate with a weight ratio of 5:4:1:1;

[0014] Wherein, the preparation method of described modified wood fiber comprises the following steps:

[0015] (1) Crushing sawdust raw materials into 90-mesh short fibers, and treating them under far-infrared conditions at 80°C for 4 hours for later use;

[0016] (2) Put the above-mentioned short fibers into a constant temperature magnetic stirring device, which is equipped with a sodium hydroxide solution with a mass concentration of 12% equivalent to 3 times the short sawdust raw material, and keep the temperature at 60 ° C. Stir continuously...

Embodiment 2

[0020] A water-retaining anti-caking dry-mix mortar, comprising the following raw materials in parts by weight: 22 parts of cement, 6 parts of fly ash, 2.6 parts of silica fume, 35 parts of aggregate, 12 parts of modified wood fiber, and 0.2 parts of compounding additives; Described composite auxiliary agent is obtained by mixing sodium thiosulfate, zinc stearate, sodium sulfamate and calcium formate with a weight ratio of 5:4:1:1;

[0021] Wherein, the preparation method of described modified wood fiber comprises the following steps:

[0022] (1) Crushing sawdust raw materials into 80-mesh short fibers, and treating them under far-infrared conditions at 80°C for 4 hours for later use;

[0023] (2) Put the above-mentioned treated short fibers into a constant temperature magnetic stirring device, which is equipped with a sodium hydroxide solution with a mass concentration of 15% equivalent to 3 times the short sawdust raw material, and maintain a sealed seal at a temperature of...

Embodiment 3

[0027] A water-retaining and anti-caking dry-mixed mortar, comprising the following raw materials in parts by weight: 32 parts of cement, 10 parts of fly ash, 1.4 parts of silica fume, 45 parts of aggregate, 18 parts of modified wood fiber, and 0.4 part of composite additives; Described composite auxiliary agent is obtained by mixing sodium thiosulfate, zinc stearate, sodium sulfamate and calcium formate with a weight ratio of 5:4:1:1;

[0028] Wherein, the preparation method of described modified wood fiber comprises the following steps:

[0029] (1) Crushing sawdust raw materials into 100-mesh short fibers, and treating them under far-infrared conditions at 80°C for 6 hours for later use;

[0030] (2) Put the above-mentioned treated short fibers into a constant temperature magnetic stirring device, which is equipped with a sodium hydroxide solution with a mass concentration of 12% equivalent to three times the short sawdust raw material, and maintain a sealed seal at a tempe...

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 belongs to the technical field of building mortar, and particularly relates to water-retaining anti-caking dry-mixed mortar. The water-retaining anti-caking dry-mixed mortar is preparedform the following raw materials: cement, fly ash, silica fume, aggregates, modified wood fibers and composite auxiliaries, wherein the composite auxiliaries are obtained by mixing sodium thiosulphate, zinc stearate, sodium sulfamate and calcium formate. Compared with the prior art, the water-retaining anti-caking dry-mixed mortar has the following advantages that the wood fibers are modified to ensure that the water-retaining anti-caking dry-mixed mortar is easily dispersed in a composite material and can be uniformly mixed with the composite material; moreover, the water-retaining anti-caking dry-mixed mortar has better hygroscopicity and water-retention property; the aggregates are not needed to be dried before use, oxidation or caking is also avoided after the mortar is placed for a long time, working procedures are simplified, and using performance of the material is improved; in addition, due to the use of the composite auxiliaries, the coagulation time can be shortened, and theusing efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of building mortar, and in particular relates to a water-retaining and anti-caking dry-mixed mortar. Background technique [0002] Dry-mixed mortar refers to a granular or powdery physical mixture of aggregates, inorganic cementitious materials and additives after drying and screening in a certain proportion, and is transported to the construction site in bags or in bulk. After mixing with water, the material can be used directly. Dry-mixed mortar is widely used in construction and decoration, such as masonry, plastering and other projects. With the continuous acceleration of urbanization, the construction and decoration industries have developed rapidly. As one of the emerging dry-mixed materials in the field of building materials, the demand for dry-mixed mortar is increasingly in short supply. However, some components in dry-mixed mortar will be oxidized and agglomerated when exposed to water, which will ...

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): C04B28/04
CPCC04B28/04C04B2111/00586C04B18/08C04B18/146C04B14/366C04B18/26C04B22/14C04B24/08C04B24/16C04B24/04
Inventor 胡万伟孙连军郭胡健
Owner 长沙三树新材料科技有限公司