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

Special mineral powder-based admixture for dry-mixed plastering mortar and application thereof

A plastering mortar and admixture technology, which is applied in the field of building materials, can solve problems such as large performance fluctuations and increased production investment costs, and achieve the effects of improved performance, easy quality control, and good economic and social benefits

Inactive Publication Date: 2012-07-04
TONGJI UNIV +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process of dry-mixed plastering mortar, multiple storage bins are required and accurately measured, which will increase the production investment cost; and due to the change of raw materials, its performance will fluctuate greatly

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
  • Special mineral powder-based admixture for dry-mixed plastering mortar and application thereof
  • Special mineral powder-based admixture for dry-mixed plastering mortar and application thereof
  • Special mineral powder-based admixture for dry-mixed plastering mortar and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: The dry-mixed plastering mortar of strength grade M5 prepared by the special mineral powder-based admixture for this dry-mixed plastering mortar, its components and proportioning (mass ratio) are: cement: 165kg; dry-mixed plastering mortar Special mineral powder-based admixture: 85kg, medium sand: 750kg. The weight ratio of the admixture used is: slag fine powder: fly ash: desulfurized gypsum: bentonite: chemical additive = 50:45.42:3.5:1:0.08. The performance results of the M5 plastering mortar test are shown in Table 2.

[0024] Table 2 The performance indicators and test results of the prepared M5 plastering mortar

[0025]

Embodiment 2

[0026] Embodiment 2: The dry-mixed plastering mortar of strength grade M10 prepared by the special mineral powder-based admixture for this dry-mixed plastering mortar, its components and proportioning (mass ratio,) are: cement: 185kg; dry-mixed plastering Special mineral powder-based admixture for mortar: 95kg, medium sand: 720kg. The weight ratio of the admixture used is: slag fine powder: fly ash: desulfurized gypsum: bentonite: chemical additive = 54:40.79:3.8:1.3:0.11. The performance results of the M10 plastering mortar test are shown in Table 3.

[0027] Table 3 The performance indicators and test results of the prepared M10 plastering mortar

[0028]

[0029] It can be seen from the above examples that the dry-mixed plastering mortar with different strength levels can be prepared with the special mineral powder-based admixture for dry-mixed plastering mortar. All performance indexes meet or exceed relevant standards and actual engineering requirements, and the prod...

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 filed of building materials, in particular to a special mineral powder-based admixture for dry-mixed plastering mortar and application thereof. The special mineral powder-based admixture for the dry-mixed plastering mortar of the invention comprises the following components in percentage by weight: 50%-60% of ground granulated blast slag, 40-50% of pulverized fuel ash, 2%-5% of free gypsum dehydration, 1%-2% of bentonite and 0.05%-0.15% of chemical additives. The special mineral powder-based admixture for the dry-mixed plastering mortar of the invention is applicable to dry-mixed plastering mortar with different strength grades, replaces part of cement and other gelled materials and thickening materials and the like to directly mix with the cement and sand to prepare the dry-mixed plastering mortar. The invention can substantially reduce the layering degree of plastering mortar, significantly improve the water retention rate, improve the evenness, stability and constructability of plastering mortar mixture, ensure higher strength of the plastering mortar, reduce dry-mixed plastering mortar raw materials and production cost, improve construction efficiency and reduce environment pollution.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a special mineral powder-based admixture for dry-mixed plastering mortar and an application thereof. Background technique [0002] Dry-mixed mortar refers to the uniform mixing of dry powder aggregate (sand), cementitious materials, chemical additives, etc., through computer measurement control and mechanized production, the product can be shipped to the site in bulk, and it only needs to be mixed with water in a certain proportion during operation. , a new type of dry powder mortar that can be used directly. [0003] Dry-mixed mortar has the advantages of mechanized operation, low labor cost, high production efficiency, low environmental pollution, good performance and stable quality, etc., and has gradually been widely promoted and applied in my country. Especially in June 2007, the Ministry of Commerce and other four ministries and two bureaus issued th...

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): C04B22/14C04B24/38C04B28/00C04B18/12C04B18/08
CPCC04B2111/20C04B2111/00646C04B40/0039C04B2111/00017C04B2103/46C04B28/02Y02W30/91C04B14/104C04B18/08C04B18/141C04B20/008C04B22/145C04B24/38C04B24/383C04B2103/50C04B14/06C04B40/0608
Inventor 王培铭张国防刘宾康明王彩英
Owner TONGJI UNIV