anti-crack mortar

An anti-cracking mortar and furfuryl alcohol technology, applied in the field of anti-cracking mortar, can solve the problems of large energy consumption, high use cost, easy to hang, etc., to improve the comprehensive mechanical properties and service life, improve the tensile performance, and improve the crack resistance performance effect

Inactive Publication Date: 2020-05-15
咸阳恒鼎商用混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the classification of performance, mortar is divided into many kinds, including bonded mortar, caulking mortar, thermal insulation mortar, etc. Among them, bonded mortar is the most common. Most of the existing bonded mortars have the defect of easy hollowing and cracking, and the construction property is not good and easy to flow Hanging, the adhesion to the wall is not good, the water loss is too fast, the strength loss is too large, and it is easy to leave quality hidden dangers, resulting in a short service life of the building. In order to improve the crack resistance of the combined mortar, the common practice is to increase The ratio of cement, when the ratio of cement to sand is more than 1 / 2 or the ratio of cement to sand is less than 1 / 3, special cement anti-cracking agent needs to be added, but the use cost of the two anti-cracking mortars is high and energy consumption is large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An anti-cracking mortar, made of the following components by weight: 50 cement, 18 fly ash, 5 vermiculite powder, 80 yellow sand, 12 opal, 10 perlite, 4 cellulose ether, 14 furfuryl alcohol activated clay, wood fiber 8. Water 50.

[0018] Further, the preparation method of the furfuryl alcohol activated pottery clay is:

[0019] (1) Evenly disperse the clay in deionized water to prepare a clay suspension with a mass fraction of 12.5%, adjust the pH of the clay suspension to 10.2 with an alkaline solution, and then heat it to 88°C for 40 minutes;

[0020] (2) Add 0.35% of its mass of furfuryl alcohol to the clay suspension prepared in step (1), stir at a speed of 3000r / min for 2 hours, then add it to a vacuum container for vacuum impregnation for 30 minutes, and then carry out rotary evaporation and drying to Constant weight to obtain furfuryl alcohol activated pottery clay.

[0021] Further, the alkaline solution is a sodium hydroxide solution with a mass fraction of ...

Embodiment 2

[0028] An anti-cracking mortar, made of the following components in parts by weight: cement 70, fly ash 22, vermiculite powder 8, yellow sand 90, opal 15, perlite 16, cellulose ether 6, furfuryl alcohol activated clay 19, wood fiber 10. Water 80.

[0029] Further, the preparation method of the furfuryl alcohol activated pottery clay is:

[0030] (1) Evenly disperse the clay in deionized water to prepare a clay suspension with a mass fraction of 12.5%, adjust the pH of the clay suspension to 10.2 with an alkaline solution, and then heat it to 88°C for 40 minutes;

[0031] (2) Add 0.35% of its mass of furfuryl alcohol to the clay suspension prepared in step (1), stir at a speed of 3000r / min for 2 hours, then add it to a vacuum container for vacuum impregnation for 30 minutes, and then carry out rotary evaporation and drying to Constant weight to obtain furfuryl alcohol activated pottery clay.

[0032] Further, the alkaline solution is a sodium hydroxide solution with a mass fr...

Embodiment 3

[0039] An anti-cracking mortar, made of the following components by weight: 60 cement, 20 fly ash, 6 vermiculite powder, 85 yellow sand, 13 opal, 12 perlite, 5 cellulose ether, 16 furfuryl alcohol activated clay, wood fiber 9. Water 60.

[0040] Further, the preparation method of the furfuryl alcohol activated pottery clay is:

[0041] (1) Evenly disperse the clay in deionized water to prepare a clay suspension with a mass fraction of 12.5%, adjust the pH of the clay suspension to 10.2 with an alkaline solution, and then heat it to 88°C for 40 minutes;

[0042] (2) Add 0.35% of its mass of furfuryl alcohol to the clay suspension prepared in step (1), stir at a speed of 3000r / min for 2 hours, then add it to a vacuum container for vacuum impregnation for 30 minutes, and then carry out rotary evaporation and drying to Constant weight to obtain furfuryl alcohol activated pottery clay.

[0043] Further, the alkaline solution is a sodium hydroxide solution with a mass fraction of ...

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Abstract

The invention discloses anti-cracking mortar, and relates to the technical field of building materials. The anti-cracking mortar is prepared from the following components of cement, fly ash, vermiculite powder, yellow sand, opal, perlite, cellulose ether, furfuryl alcohol activated clay, wood fiber and water. The anti-cracking mortar has the advantages that by determining the contents of the components, each component is ensured to reach the optimum synergistic effect; especially under the synergistic action of the furfuryl alcohol activated clay, the multiple properties of water seepage prevention, shock resistance, abrasion resistance, water reduction, freezing resistance, cracking resistance and the like are simultaneously realized.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an anti-crack mortar. Background technique [0002] Mortar is a common material for construction and is an essential material in construction. According to the classification of performance, mortar is divided into many kinds, including bonded mortar, caulking mortar, thermal insulation mortar, etc. Among them, bonded mortar is the most common. Most of the existing bonded mortars have the defect of easy hollowing and cracking, and the construction property is not good and easy to flow Hanging, the adhesion to the wall is not good, the water loss is too fast, the strength loss is too large, and it is easy to leave quality hidden dangers, resulting in a short service life of the building. In order to improve the crack resistance of the combined mortar, the common practice is to increase The ratio of cement, when the ratio of cement to sand is more than 1 / 2 or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C04B20/10C04B14/18C04B18/26C04B20/02C04B111/34
CPCC04B14/18C04B18/26C04B20/023C04B20/1022C04B28/06C04B2111/343C04B2201/10C04B18/08C04B14/202C04B14/068C04B24/383C04B14/10C04B22/002C04B14/06Y02W30/91
Inventor 胡万伟孙连军郭胡健
Owner 咸阳恒鼎商用混凝土有限公司
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