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Production method of dry-mixed facing mortar with controllable whiteness

A finishing mortar and mortar technology, applied in the field of dry-mixed finishing mortar, can solve the problems of poor color management, high color uniformity requirements, poor color chroma, etc., and achieve the effect of increased production capacity and controllable production quality

Inactive Publication Date: 2013-04-17
SHANGHAI GIANT ENERGY SAVING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Those skilled in the art know that in addition to the basic components of the paint, the paint generally also includes pigments to obtain the desired color, but due to the particularity of the dry powder paint product (such as multi-color varieties, high color uniformity requirements, and many changes in raw material types) , large differences, etc.), different batches of dry powder coatings are prone to poor color chroma
The existing production process of dry powder coatings generally adopts a batch-mixing packaging process, and the differences between different batches are marked separately. This batch packaging method has disadvantages such as low production capacity and poor color management.

Method used

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  • Production method of dry-mixed facing mortar with controllable whiteness

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Experimental program
Comparison scheme
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specific Embodiment approach

[0033] After extensive and in-depth research and a large number of experimental tests, the present invention improves the existing white mortar production process and provides a production method of dry-mixed facing mortar with controllable whiteness. First, obtain the whiteness B from different mortar base components and aggregate mixtures 2 Adjust to design mortar product whiteness B 1The weight W of the white pigment that needs to be added, after measuring a series of data, establish the whiteness B of various mortar base components and aggregate mixtures 2 A graph or / and table of the relationship between the weight W of the white pigment to be added.

[0034] Take the relationship curve as an example, take B 2 W is the abscissa and W is the ordinate, and the curve is obtained after linear fitting.

[0035] In the production process, the mortar base components other than the white pigment and the aggregate are measured and mixed first, and the whiteness is measured, and ...

Embodiment 1

[0040] The basic components of mortar include cement, redispersible latex powder, powdered calcium carbonate (particle size: 300 mesh), water reducer, aggregate is quartz sand (particle size: 3mm), weighed according to the weight ratio in Table 1 The materials were mixed evenly, and the whiteness of the basic components of the mortar was detected to be 65.66.

[0041] Table 1, the weight ratio of mortar base components and aggregate materials in Example 1 (unit: kg)

[0042] materials Portland cement Redispersible latex powder calcium carbonate Polycarboxylate superplasticizer Quartz sand weight 20 6 66.5 0.5 7

[0043] According to the B drawn in the above 2 From the relationship curve between W and W, find the ordinate value 19.80 of the point on the curve corresponding to the abscissa value of 65.66, which is the weight of the white pigment that needs to be added.

[0044] Weigh 19.80kg of white pigment, add it to the mixture of the above...

Embodiment 2

[0046] The basic components of mortar include cement, redispersible latex powder, powdered calcium carbonate (300 mesh in particle size), water reducing agent, and quartz sand (3mm in particle size) as the aggregate, weighed according to the weight ratio in Table 2 The materials were mixed evenly, and the whiteness of the basic components of the mortar was detected to be 69.03.

[0047] Table 2, the weight ratio of mortar base components and aggregate materials in Example 2 (unit: kg)

[0048] materials Portland cement Redispersible latex powder calcium carbonate Polycarboxylate superplasticizer Quartz sand weight 20 6 66.5 0.5 7

[0049] According to the relationship curve between B1 and W drawn in the above content, find the ordinate value 18.20 of the point on the curve corresponding to the abscissa value of 69.03, which is the weight of the white pigment to be added.

[0050] Weigh 18.20kg of white pigment, add it to the mixture of the ab...

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Abstract

The invention provides a production method of dry-mixed facing mortar with controllable whiteness. The whiteness of the designed white mortar is B1; the whiteness B2 of mortar formed by different basic component and aggregate mixtures is tested under the condition of containing no white pigment; the weight W of a white pigment required to be added into the basic component and aggregate mixtures is tested when B2 is adjusted to B1; a relation graph or / and table of B2 and W is / are drawn; basic components and aggregates of the mortar are provided, metered and mixed, and the whiteness B3 of the mixture is tested; and the weight Wt of a white pigment required to be added when B3 is adjusted to B1 is found according to the relation graph or / and table drawn in the step 3, and the white pigment with weight of Wt is added to obtain the white mortar with the required whiteness. According to the invention, after mixing of the basic components, the pigment is added to prepare the white mortar, and the whitenesses of products in all batches are almost kept the same; and in addition, the production quality is controllable and the productivity is increased.

Description

technical field [0001] The invention relates to a production method of mortar, in particular to a method for producing dry-mixed facing mortar with controllable whiteness, which is continuous, high-capacity, and basically consistent in whiteness between batches. Background technique [0002] Architectural coatings mainly refer to coatings used for building exterior walls, interior walls, ceilings, floors, etc., which have decorative, protective and residential performance improvement functions. Benzene substances, formaldehyde and other organic volatiles, organic solvents, and heavy metals in early paints have caused serious pollution to the environment and humans, and there is a risk of pollution in every link from production to use. With the advancement of technology and people's emphasis on pollution, the paint industry has entered the era of "water-based paint" from the "oil-based paint" era. [0003] At present, architectural coatings are mainly water-based coatings, a...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B28/06C04B26/04C04B26/06C04B111/82
Inventor 郭四龙
Owner SHANGHAI GIANT ENERGY SAVING MATERIALS