A kind of diatomite-fly ash type caulk composition and its application

A technology of composition and diatomite, which is applied in the field of caulking agent, can solve the problems of high porosity and extensibility, affecting the appearance of tiles, mildew and other problems, and achieves light weight, softness, good wear resistance, good mixing uniformity, and good compression effect

Active Publication Date: 2016-07-06
内蒙古东盛硅藻土科技创新产业园有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cement-based grout has two major disadvantages: (1) Poor waterproof and impermeable properties, water is easy to penetrate, causing mildew, making the tiles easy to shrink and hollow; (2) The surface has poor wear resistance and is easily stained by pollutants , it is difficult to scrub, resulting in poor decorative effect and affecting the appearance of tiles
Although the reactive resin caulking agent can overcome the above disadvantages, the cost of materials and packaging is too high, the production and mixing process is cumbersome, and it contains toxic and harmful gases such as volatile organic compounds, so its application is limited
[0006] Although diatomaceous earth has many of the above advantages, it is generally considered unsuitable for caulking due to its high porosity and extensibility

Method used

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  • A kind of diatomite-fly ash type caulk composition and its application
  • A kind of diatomite-fly ash type caulk composition and its application
  • A kind of diatomite-fly ash type caulk composition and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The caulking agent composition of the present invention was prepared according to the combination and dosage shown in Table 1 below. Wherein, the particle size of the diatomite and the quartz sand or the fly ash is about 40 microns, and the silicon dioxide content of the diatomite is about 80% by mass, and the pulverized coal The ash is based on (GB / T1596-2005) standard and meets the requirements of Table 2 in item 4.2 (that is, the ignition loss % is not more than 5%, the water content is not more than 1%, the sulfur trioxide % is not more than 3%, 28 Class I fly ash used as an active admixture in the production of cement in which the compressive strength ratio % is not more than 75%; the particle size of the sepiolite powder is about 30 microns; the cement is type I portland cement ; The 200-mesh sieve remainder of other raw materials is less than 1% by mass, and the cellulose is hydroxyethyl cellulose. The above raw materials were ground and mixed at a speed of 200 ...

Embodiment 2 to 16

[0045] Except for the contents shown in Table 1, the compositions were prepared in the same manner as in Examples and various performance indexes were measured.

[0046] Components and consumption (parts by weight) used in the manufacture of the caulk composition in Table 1 Examples 1 to 16

[0047]

[0048] Table 2 Cement-based joint filler standard

[0049] Performance

Require

testing method

wear resistance

≤2000mm 3

water absorption test

Flexural strength under standard conditions of curing

≥3.5N / mm 2

Flexural Strength and Compressive Strength Testing

Flexural strength after freeze-thaw cycles

≥3.5N / mm 2

Flexural Strength and Compressive Strength Testing

Compressive strength under standard conditions of curing

≥15N / mm 2

Flexural Strength and Compressive Strength Testing

Compressive strength after freeze-thaw cycles

≥15N / mm 2

Flexural Strength and Compressive Strength Tes...

Embodiment 17 to 25

[0054] Based on the results in Examples 1 to 16, and in view of the low price of fly ash and the need for waste utilization, the inventors used fly ash instead of quartz sand to manufacture joint fillers in a similar manner to Example 1 and tested the filling. Performance indicators of caulking agent (see Tables 4 and 5).

[0055] Components and consumption (parts by weight) used in the manufacture of the caulk composition in Table 4 Examples 17 to 25

[0056]

[0057] The performance of the cement-based joint filler composition prepared in the embodiment 17 to 25 of table 5

[0058]

[0059] As can be seen from the results in Table 5, although in the above system, the utilization of fly ash is mainly limited by the problem of insufficient strength, it is possible to use fly ash to manufacture joint fillers, for example, it can be used in 10 parts by weight to Fly ash was used in 15 parts by weight.

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Abstract

The invention provides a diatomite and fly ash type caulking agent composition and application thereof. The composition is composed of the following components by weight: (1) 20 to 40 parts of diatomite; (2) 10 to 15 parts of fly ash; (3) 0.5 to 2.5 parts of bentonite; (4) 4 to 6 parts of heavyweight calcium carbonate; (5) 1 to 2 parts of sodium silicate; (6) 10 to 20 parts of calcite powder; (7) 4 to 8 parts of sepiolite powder; (8) 2 to 4 parts of titanium dioxide; (9) 1 to 2 parts of cellulose, wherein the cellulose is at least one selected from the group consisting of hydroxyethyl cellulose, hydroxyethyl methyl cellulose and hydroxypropyl methyl cellulose; and (10) 30 to 40 parts of cement. The invention also provides the application of the composition in caulking operation. The cement-based caulking agent composition provided by the invention has various advantages of the diatomite, such as performances of the diatomite itself of light weight, sound insulation, wear resistance, etc.; meanwhile, the fly ash can be utilized to prepare the caulking agent in the invention, thereby reducing production cost of the caulking agent.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a caulking agent and its application. Background technique [0002] Diatomaceous earth is a kind of biogenic siliceous sedimentary rock. It is a non-metallic mineral that is gradually formed by the natural environment through the deposition of the remains of diatoms that grow in oceans or lakes. Diatomite is mainly distributed in China, the United States, Denmark, France, Romania and other countries. It is a biogenic siliceous sedimentary rock composed mainly of the remains of ancient diatoms. my country's diatomite reserves are 320 million tons, and the prospective reserves are more than 2 billion tons, mainly concentrated in East China and Northeast China. Among them, Jilin (54.8%), Zhejiang, Yunnan, Shandong, Sichuan and other provinces have larger scale and more reserves . [0003] Diatomaceous earth has the following advantages. (1) The pH value is neutral, non-toxic, go...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B28/04C04B18/08E04F13/07
CPCY02W30/91
Inventor 文启东崔俊峰文博邹晓虎
Owner 内蒙古东盛硅藻土科技创新产业园有限公司
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