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Chlorine-free concrete and mortar waterproof agent

A technology for concrete and waterproofing agent, applied in the field of chlorine-free concrete and mortar waterproofing agent, can solve the problems of not meeting the waterproof and impermeability requirements of construction projects, cracking of concrete, etc., achieving remarkable water reduction and enhancement effect, saving cement, and slump Loss reduction effect

Inactive Publication Date: 2016-01-20
滁州京安工贸有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, an expansion-type waterproofing agent based on expansion agent and compounded with other admixtures has been developed, but improper use will cause concrete cracking
Due to the shortcomings of different degrees in the existing waterproofing agents, it is still unable to meet the waterproof and anti-seepage needs of construction projects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Add 20 parts of furan resin, 10 parts of sugarcane wax and 5 parts of hydrogenated castor oil into 85 parts of blast furnace slag, heat up to 90° C. and keep stirring for 20 minutes to obtain material I;

[0024] (2) Add 15 parts of sepiolite powder and 12 parts of nano-silicon micropowder to 250 parts of water, ultrasonically disperse evenly, add 20 parts of expansion agent, 15 parts of naphthalene-based water reducer and 6 parts of palmitic acid, and then use microwave frequency 2450MHz, power Microwave treatment at 600W for 15 minutes to obtain material II;

[0025] (3) Add material I, material II, 12 parts of cyclodextrin and 10 parts of organic bentonite into a ball mill, ball mill until the fineness is less than 50 μm, and then directly pack the solution in a plastic barrel, or dry and pulverize it into a powder and use it in an internal Packed in two layers of plastic bags.

[0026] Preparation of expansion agent: 90 parts of natural alum, 50 parts of gypsum...

Embodiment 2

[0029] (1) Add 22 parts of furan resin, 12 parts of sugarcane wax and 8 parts of hydrogenated castor oil into 90 parts of blast furnace slag, heat up to 90°C and keep stirring for 20 minutes to obtain material I;

[0030] (2) Add 20 parts of sepiolite powder and 15 parts of nano-silicon micropowder to 300 parts of water, ultrasonically disperse evenly, add 22 parts of expansion agent, 18 parts of naphthalene-based water reducer and 10 parts of palmitic acid, and then use microwave frequency 2450MHz, power Microwave treatment at 600W for 15 minutes to obtain material II;

[0031] (3) Add material I, material II, 18 parts of cyclodextrin and 15 parts of organic bentonite into a ball mill, ball mill until the fineness is less than 50 μm, and then directly pack the solution in plastic barrels, or dry and pulverize it into powder and use it in an internal Packed in two layers of plastic bags.

[0032] Preparation of expansion agent: Mix 100 parts of natural alum, 60 parts of gypsu...

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PUM

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Abstract

The invention discloses a chlorine-free concrete and mortar waterproof agent, and belongs to the technical field of additive. The chlorine-free concrete and mortar waterproof agent is prepared from, by weight, 80 to 90 parts of blast furnace slag, 20 to 25 parts of an expanding agent, 18 to 22 parts of furan resin, 15 to 20 parts of a naphthalene water reducer, 15 to 20 parts of sepiolite powder, 12 to 18 parts of cyclodextrin, 10 to 15 parts of nano silicon micro powder, 10 to 15 parts of organic bentonite, 8 to 12 parts of sugarcane wax, 6 to 10 parts of palmitic acid, 5 to 8 parts of hydrogenated castor oil, and 250 to 300 parts of water. The chlorine-free concrete and mortar waterproof agent possesses stable and reliable water resistance; insoluble silicates can be obtained via reaction of the active ingredients of the chlorine-free concrete and mortar waterproof agent with cement hydration products, so that water seepage channels can be blocked, and water tightness and impermeability of concrete and mortar are improved greatly.

Description

Technical field: [0001] The invention relates to the technical field of admixtures, in particular to a chlorine-free concrete and mortar waterproofing agent. Background technique: [0002] Concrete and mortar are widely used in construction, water conservancy, road and other projects, and are important building materials and engineering materials related to the national economy and people's livelihood. After the concrete is formed, the small pores are evenly distributed inside, and the buildings made of concrete will see water seepage due to hydrostatic pressure and capillary action. Over time, water seepage will have a great impact on concrete, mortar and even the building structure, so waterproofing has a great impact on the quality of the project. has an important influence. [0003] At present, there are many kinds of waterproofing agents, among which the main components of inorganic waterproofing agents are chloride salts, lithium chloride salts, sulfates, water glass,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B103/65
Inventor 王文斌毛凯王冉王文飞
Owner 滁州京安工贸有限责任公司
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