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High-anti-permeability bright-color mechanized spraying dry-mixed mortar

A technology of mechanical spraying and dry-mixing mortar, applied in the field of building materials, can solve the problems of narrow application field and insufficient sag resistance in manual construction, and achieve the effect of good mechanical strength, good mechanical spraying ability, and improved impermeability performance.

Inactive Publication Date: 2019-02-15
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims at the low efficiency of manual construction in the construction field, the insufficient sag resistance of machine spraying construction, and narrow application fields, etc., and considers the demand for aesthetics, and provides a high anti-seepage spraying machine suitable for machine spraying construction. Colored dry-mixed mortar, with high anti-sagging, high impermeability and sufficient operating time, high mechanical strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A high-impermeability bright color mechanical spraying dry-mixed mortar, the raw materials for preparing the mortar include the following materials in parts by weight: 17 parts of ordinary Portland white cement, 0.9 parts of iron oxide red pigment, 11 parts of heavy calcium powder; 69 parts of white quartz sand, 0.66 parts of pure acrylic acid redispersible latex powder, and 0.21 parts of water reducer;

[0034] The specific preparation method is as follows: weigh the raw materials (cementitious material, fine aggregate, admixture) for preparing the mortar according to the proportion, and dry mix fully; Water consumption, and then pour the components after dry mixing into the mixing container. The mixing procedure is: after stirring slowly at a low speed for 60 seconds, scrape the powder adhered to the wall into the slurry, and then stir quickly for 180 seconds. .

[0035] The high impermeability bright color mechanical spraying dry-mixed mortar obtained in this exampl...

Embodiment 2

[0037]A high-impermeability bright color mechanical spraying dry-mixed mortar. The raw materials for preparing the mortar include the following materials in parts by weight: 19 parts of ordinary Portland white cement, 12 parts of heavy calcium powder, 1 part of iron oxide red pigment, fine aggregate 66 parts of white quartz sand, 0.66 parts of pure acrylic redispersible latex powder, and 1.1 parts of water reducer.

[0038] Be 12.5% ​​(accounting for total dry mixture mass ratio) to weigh water consumption by water content, and prepare machine-blasting mortar with the method identical with embodiment 1, adopt the testing method identical with embodiment 1 to test mortar performance parameter, specific result sees appendix Sample 2 in Table 1 # .

[0039] Sample 2 from Schedule 1 # It can be seen from the data that the compressive strength of the prepared mortar has reached M25, and when the water osmotic pressure reaches 1.5MPa, there is no water seepage from the end surface...

Embodiment 3

[0041] A high-impermeability bright color mechanical spraying dry-mixed mortar, the raw materials for preparing the mortar include the following materials in parts by weight: 9 parts of ordinary Portland white cement, 12 parts of heavy calcium powder; 9 parts of mineral powder; 11 parts of heavy calcium powder 10 parts of mineral powder; 1 part of iron oxide red pigment, 66 parts of fine aggregate white quartz sand, 0.3 part of pure acrylic acid redispersible latex powder, 1.1 part of water reducer;

[0042] The amount of water is 10.6% (accounting for the total dry mixture mass ratio) to weigh the amount of water and prepare the mechanical spraying mortar in the same way as in Example 1, and use the same test method as in Example 1 to test the performance parameters of the mortar. The specific results are shown in the attached table Sample 3 in 1 # .

[0043] Sample 3 from Schedule 1 # It can be seen from the data that the compressive strength of the prepared mortar has rea...

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Abstract

The invention provides high-anti-permeability bright-color mechanized spraying dry-mixed mortar. The mortar comprise the following raw materials in parts by weight: 9-19 parts of ordinary Portland white cement, 0-10 parts of mineral powder, 11-12 parts of coarse whiting powder, 0.9-1 part of pigment, 66-69 parts of fine aggregate white quartz sand, 0.33-1.32 parts of rubber powder and 0.1-0.2 partof a water reducing agent. The dry-mixed mortar disclosed by the invention is a mortar composition with advantages of excellent field constructability, sag resistance and water retaining capacity andhigh anti-permeability property, and the high-anti-permeability bright-color mechanized spraying dry-mixed mortar can maintain excellent color uniformity in adverse weather, is low in cost and can beapplied to multiple basal planes and complicated construction environments.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a high-impermeability bright-color mechanically sprayed dry-mixed mortar. Background technique [0002] Mechanical spraying mortar construction technology originated from Europe and has been successfully applied in Europe for more than 40 years. Spray plastering technology can be applied to civil buildings and public buildings, and can greatly improve the work efficiency of wall plastering and shorten the completion period. However, the traditional process is prone to dust pollution on the construction site, low construction efficiency, and high labor costs. [0003] Mechanical spraying mortar refers to cement, fine aggregates, mineral admixtures, additives and other components determined according to performance, according to a certain proportion, in a professional production plant after metering, mixing, adding water and stirring, and used for mechanical spraying. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00293C04B2201/10C04B2201/50C04B18/12C04B14/28C04B2103/54C04B14/06C04B24/26C04B2103/302
Inventor 赵青林胡相锋蒙若男王峥嵘张子龙
Owner WUHAN UNIV OF TECH
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