Method for fabricating plates made from fine concrete modified by epoxy emulsion

A technology of fine concrete and epoxy emulsion, which is applied in the field of epoxy emulsion modified cement fine concrete to make plates, which can solve the problem of high viscosity of the system, poor curing effect, flexural strength, waterproof and anti-penetration, which cannot meet the ideal design requirements And other problems, to achieve the effect of improving the flexural strength, saving the amount of addition, and excellent water resistance

Inactive Publication Date: 2005-01-12
珠海市豪瑞森建材有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

However, like the above-mentioned models, it also has the following problems: when the polymer and curing agent are mixed and then mixed with cement fine concrete for modification, the film can only be formed when the cement loses water in the late stage of the hydration reaction. , The cross-linking and curing speed of cement fine concrete is not suitable for mastering, the curing effect is not good, and the viscosity of the system is high, so that the functions of flexural strength, waterproof and anti-penetration cannot meet the ideal design requirements, and large-scale industrial production and construction cannot be achieved.

Method used

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  • Method for fabricating plates made from fine concrete modified by epoxy emulsion

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Take 100 kg of cement, poly-ash ratio 20:100, and water-cement ratio 33:100. From this, it is determined: cement I is 82.35 kg, cement II is 17.65 kg, quartz powder is 65.88 kg, pearl salt powder is 4.69 kg, alkali resistance The glass fiber is 1.56 kg, the epoxy emulsion is 28.24 kg, the curing agent is 5.88 kg, and the supplementary water is 18.88 kg. Mix epoxy emulsion and supplementary water into cement I, quartz powder, pearl salt powder and alkali-resistant glass fiber and stir, after 30 minutes of mixing, epoxy cement slurry is formed; After 30 minutes of full mixing under the addition; the added curing agent was added to the epoxy cement slurry, and after 15 minutes of full mixing, the cement concrete formed a paste-like epoxy network intercalation structure. Cement stone; and then made into boards by a board forming machine. The boards are removed at room temperature (25°C) for 48 hours. After curing for 5 to 7 days, they are trimmed according to specifications...

Embodiment 2

[0045] Take 100 kg of cement, the poly-ash ratio is 45:100, and the water-cement ratio is 33:100. From this, it is determined that: cement I is 60.29 kg, cement II is 39.71 kg, quartz powder is 48.23 kg, pearl salt powder is 3.44 kg, alkali resistance The glass fiber is 1.15 kg, the epoxy emulsion is 63.52 kg, the curing agent is 13.24 kg, and the supplementary water is 1.24 kg. Mix epoxy emulsion and supplementary water into cement I, quartz powder, pearl salt powder and alkali-resistant glass fiber and stir, after 30 minutes of mixing, epoxy cement slurry is formed; After 30 minutes of full mixing under the addition; the added curing agent was added to the epoxy cement slurry, and after 10 minutes of full mixing, the cement concrete formed a paste-like epoxy network intercalation structure. Cement stone; and then made into boards by a board forming machine. The boards are removed at room temperature (25°C) for 48 hours. After curing for 5 to 7 days, they are trimmed accordin...

Embodiment 3

[0048] Take 100 kg of cement, poly-ash ratio 33:100, and water-cement ratio 33:100. From this, it is determined: cement I is 70.88 kg, cement II is 29.12 kg, quartz powder is 56.7 kg, pearl salt powder is 4 kg, alkali resistance The glass fiber is 1.35 kg, the epoxy emulsion is 46.6 kg, the curing agent is 9.7 kg, and the supplementary water is 9.7 kg. Mix epoxy emulsion and supplementary water into cement I, quartz powder, pearl salt powder and alkali-resistant glass fiber and stir, after 30 minutes of mixing, epoxy cement slurry is formed; After 30 minutes of full mixing under the addition; the added curing agent was added to the epoxy cement slurry, and after 15 minutes of full mixing, the cement concrete formed a paste-like epoxy network intercalation structure. Cement stone; and then made into boards by a board forming machine. The boards are removed at room temperature (25°C) for 48 hours. After curing for 5 to 7 days, they are trimmed according to specifications and can...

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Abstract

By this method, epoxy can be cross-linked, solidified, formed to film in early stage to make cement fine concrete form epoxy net layer slotting structure when cement concrete is modified in board material producing. The method is to mix epoxy emulsion and water according to polyash ratio 20:100-45:100 and water ash ratio 33:100 into cement, fine aggregate andp earlstone powder to be stirred to form epoxy cement paste, then to put room-temp. stype amines curing agent into the epoxy cement paste to fully stir to make cement concrete forming asphalt alite with epoxy net layer slotting structure, finally asphalt alite is processed to board material.

Description

technical field [0001] The invention relates to a method for making boards with epoxy emulsion modified cement fine concrete. Background technique [0002] At present, in the process of making cement concrete slabs and other products, it is necessary to modify the cement concrete to improve the comprehensive performance of its products. Regarding the method of modifying cement mortar or concrete, many models have been proposed in the industry at home and abroad, the most famous of which are the Ohamam model, Konietzko model, Puterman model and Malorny model. They are all mixed with polymer and curing agent and then mixed into cement fine concrete. The polymer forms a film when the cement mortar or concrete loses water, thereby improving the flexural strength, waterproof and anti-penetration of cement fine concrete. Function. Chinese Patent Publication No. CN1267649, published on September 27, 2000, discloses a method of modifying cement concrete ca...

Claims

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Application Information

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IPC IPC(8): C04B14/06C04B14/18C04B14/42C04B24/00C04B28/00
Inventor 刘岩
Owner 珠海市豪瑞森建材有限公司
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