CN109081656B

CN109081656B - Slurry for wall surface slurry throwing and preparation method thereof

Info

Publication number: CN109081656B
Application number: CN201811272324.5A
Authority: CN
Inventors: 高蕤
Original assignee: China MCC17 Group Co Ltd
Current assignee: China MCC17 Group Co Ltd
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2021-06-01
Anticipated expiration: 2038-10-30
Also published as: CN109081656A

Abstract

The invention discloses slurry for wall surface slurry throwing and a preparation method thereof. The wall surface slurry throwing slurry comprises the following raw materials in percentage by weight: 60-65% of ordinary portland cement, 1-2% of rubber powder, 1-2% of a thickening agent, 30-36% of water, 1-3% of an early strength agent and 100% of the total. Weighing ordinary portland cement, rubber powder, a thickening agent, water and an early strength agent according to the weight ratio; and then mixing the components, and stirring for 1-3 min to obtain the slurry. The hydroxypropyl methyl cellulose gel powder has the characteristics of thickening, bonding, film forming, adsorption, gelation and the like, is easy to dissolve, and overcomes the defects of large using amount, high cost and poor cohesiveness after solidification of the traditional slurry glue; the thickening agent is utilized to improve the performances of the slurry such as heat resistance, wear resistance, heat preservation, aging resistance and other chemical effects, and the slurry has good suspension property, uniform mixing property and good thickening effect; the early strength agent is utilized to improve the early strength of the slurry, so that a plastering layer can be constructed more quickly, and the construction period is ensured.

Description

Slurry for wall surface slurry throwing and preparation method thereof

Technical Field

The invention relates to the technical field of wall surface construction, in particular to slurry for wall surface slurry throwing and a preparation method thereof.

Background

When building construction is carried out in a mountainous area, as the mountainous area basically has no building sand, a mountain body needs to be excavated in the engineering construction; in order to better utilize mountain resources, the construction sand mostly adopts crushed stone and fine gravel which are formed by weathered stones on the mountain, and has large mud content and poor quality. In the construction process of the building wall, the plastering process of the wall surface is the most common process in the building construction, and is also a process which frequently causes quality problems. When building construction is carried out, the fine aggregate of the slurry used for plastering is fine gravel with large mud content, the slurry quality is poor, a plastering layer is directly constructed, the adhesion between the plastering layer and a wall body is poor, and the plastering layer has the problems of hollowing, falling and cracking; therefore, during construction, a plurality of bulges can be formed on the surface of the wall body by throwing slurry, and then a plastering layer is constructed. However, the slurry must have good adhesion to bond the wall and the render.

Disclosure of Invention

In order to solve the problem of poor adhesion between the wall and the plastering layer, the invention provides the slurry for wall surface slurry throwing and the preparation method thereof.

In order to achieve the above purpose, the technical scheme of the invention is as follows:

the invention provides a slurry for wall surface slurry throwing, which comprises the following raw materials in percentage by weight: 60-65% of ordinary portland cement, 1-2% of rubber powder, 1-2% of a thickening agent, 30-36% of water, 1-3% of an early strength agent and 100% of the total.

Furthermore, the rubber powder is hydroxypropyl methyl cellulose powder, the powder is powdery, the pH value is 6-9, the water-soluble ash content is less than or equal to 3%, and the gelling temperature is 60-80 ℃.

Further, the thickening agent is an acrylate polymer dispersion thickening agent, the solid content (WT%) is 65-70%, and the pH value is 6-7.

Furthermore, the early strength agent is powdery, the 0.32mm sieve residue is less than 5%, the pH value is 6-8, and the bleeding rate is less than or equal to 95%.

The invention also provides a preparation method of the slurry for wall surface slurry throwing,

a preparation method of the slurry for wall surface slurry throwing according to claims 1 to 4 is characterized by comprising the following steps: weighing 60-65% of ordinary portland cement, 1-2% of rubber powder, 1-2% of a thickening agent, 30-36% of water and 1-3% of an early strength agent according to the weight ratio; and then mixing the components, and stirring for 1-3 min to obtain the slurry.

The invention has the beneficial effects that: the hydroxypropyl methyl cellulose gel powder has the characteristics of thickening, bonding, film forming, adsorption, gelation and the like, is easy to dissolve, and overcomes the defects of large using amount, high cost and poor cohesiveness after solidification of the traditional slurry glue; the thickening agent is utilized to improve the performances of the slurry such as heat resistance, wear resistance, heat preservation, aging resistance and other chemical effects, and the slurry has good suspension property, uniform mixing property and good thickening effect; the early strength agent is utilized to improve the early strength of the slurry, so that a plastering layer can be constructed more quickly, and the construction period is ensured.

Detailed Description

First, it should be noted that the characteristics, advantages and the like of the slurry for wall surface whipping and the preparation method thereof according to the present invention will be specifically described below by way of examples, however, all the descriptions are for illustrative purposes only and should not be construed as forming any limitation to the present invention.

In order to avoid repetition, the technical parameters of the related raw materials or the manufacturing method related in the embodiments are uniformly described, and are not described again in the embodiments:

the gelatine powder is hydroxypropyl methyl cellulose gelatine powder and is powdery, the PH value is 6-9, the water-soluble ash content is less than or equal to 3%, and the gelling temperature is 60-80 ℃. The thickening agent is an acrylate polymer dispersion thickening agent, the solid content (WT%) is 65-70%, and the pH value is 6-7. The early strength agent is powdery, the 0.32mm sieve residue is less than 5%, the pH value is 6-8, and the bleeding rate is less than or equal to 95%.

The slurry for wall space whipping according to the present invention is exemplified by the examples given below.

Example 1

The slurry for wall surface slurry throwing described in this embodiment comprises the following raw materials in percentage by weight: 60% of ordinary portland cement, 1% of rubber powder, 2% of thickening agent, 36% of water, 1% of early strength agent and 100% of the total. The preparation method of the slurry for wall surface slurry throwing comprises the following steps of weighing 60% of ordinary portland cement, 1% of rubber powder, 2% of thickening agent, 36% of water and 1% of early strength agent according to the weight ratio; then, the components are mixed and stirred for min to obtain slurry.

Example 2

The slurry for wall surface slurry throwing described in this embodiment comprises the following raw materials in percentage by weight: 65% of ordinary portland cement, 2% of rubber powder, 1% of thickening agent, 30% of water, 2% of early strength agent and 100% of the total. According to the preparation method of the slurry for wall surface slurry throwing, 65% of ordinary portland cement, 2% of rubber powder, 1% of thickening agent, 30% of water and 2% of early strength agent are weighed according to the weight proportion; and then mixing the components, and stirring for 1-3 min to obtain the slurry.

Example 3

The slurry for wall surface slurry throwing described in this embodiment comprises the following raw materials in percentage by weight: 61 percent of ordinary portland cement, 1.5 percent of rubber powder, 1.5 percent of thickening agent, 33 percent of water and 3 percent of early strength agent, which account for 100 percent. The preparation method of the slurry for wall surface slurry throwing comprises the following steps of weighing 61% of ordinary portland cement, 1.5% of rubber powder, 1.5% of thickening agent, 33% of water and 3% of early strength agent according to the weight ratio; and then mixing the components, and stirring for 1-3 min to obtain the slurry.

The slurry throwing slurry prepared by the embodiment is applied to wall construction in Guizhou areas, so that the cohesiveness of a plastering layer and the wall is effectively improved, and the construction period is not influenced. The hydroxypropyl methyl cellulose gel powder has the characteristics of thickening, bonding, film forming, adsorption, gelation and the like, is easy to dissolve, and overcomes the defects of large using amount, high cost and poor cohesiveness after solidification of the traditional slurry glue; the thickening agent is utilized to improve the performances of the slurry such as heat resistance, wear resistance, heat preservation, aging resistance and other chemical effects, and the slurry has good suspension property, uniform mixing property and good thickening effect; the early strength agent is utilized to improve the early strength of the slurry, so that a plastering layer can be constructed more quickly, and the construction period is ensured.

Claims

1. The slurry for wall surface slurry throwing is characterized by comprising the following raw materials in percentage by weight: 60-65% of ordinary portland cement, 1-2% of rubber powder, 1-2% of a thickening agent, 30-36% of water, 1-3% of an early strength agent and 100% of the total; the rubber powder is hydroxypropyl methyl cellulose rubber powder and is powdery, the pH value is 6-9, the water-soluble ash content is less than or equal to 3%, and the gelling temperature is 60-80 ℃; the thickening agent is an acrylate polymer dispersion thickening agent, the solid content is 65-70 wt%, and the pH value is 6-7; the early strength agent is powdery, the 0.32mm sieve residue is less than 5%, the pH value is 6-8, and the bleeding rate is less than or equal to 95%.

2. A method for preparing the slurry for wall surface slurry throwing according to claim 1, which comprises the following steps: weighing 60-65% of ordinary portland cement, 1-2% of rubber powder, 1-2% of a thickening agent, 30-36% of water and 1-3% of an early strength agent according to the weight ratio; and then mixing the components, and stirring for 1-3 min to obtain the slurry.