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Anti-crack mortar and preparation method thereof

A technology for anti-crack mortar and coarse sand, which is applied in the field of anti-crack mortar and its preparation, and can solve problems such as hidden safety hazards, low tensile strength, and falling off.

Active Publication Date: 2022-07-29
新化县天马建筑新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary mortar is in a different restraint state due to the restraint with the matrix or adjacent parts. Due to the restraint, a certain tensile stress will be generated. Due to the low tensile strength of the mortar, the mortar will crack, cause water seepage on the wall, and even fall off. security risks

Method used

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  • Anti-crack mortar and preparation method thereof
  • Anti-crack mortar and preparation method thereof
  • Anti-crack mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An anti-cracking mortar, comprising the following components in parts by weight:

[0026] 300 parts of Portland cement, 10 parts of PTB emulsion, 15 parts of VAE emulsion, 650 parts of light coarse sand, 100 parts of light fine sand, 2 parts of hydroxypropyl methylcellulose, 15 parts of silane layer glass fiber, poly 10 parts of ethylene glycol graft-modified alkali lignin, 1 part of polycarboxylate water reducing agent, 25 parts of fly ash, 1 part of calcium sulfoaluminate expansion agent, 0.5 part of silicone water repellent, and 330 parts of water.

[0027] Wherein, the preparation method of silane layer glass fiber is as follows:

[0028] Water, methanol, and silane coupling agent KH-570 were mixed and stirred at a volume ratio of 8:1:1 for 40 minutes, then the pH of the system was adjusted to 6 with acetic acid, and the silane hydrolyzed solution was obtained by sealing and standing for 25 hours. The glass fiber was added to the piranha solution, After soaking for...

Embodiment 2

[0034] An anti-cracking mortar, comprising the following components in parts by weight:

[0035] 300 parts of Portland cement, 10 parts of PTB emulsion, 20 parts of VAE emulsion, 650 parts of light coarse sand, 120 parts of light fine sand, 2 parts of hydroxypropyl methylcellulose, 20 parts of carbon fiber with silane layer, polyethylene 10 parts of glycol graft modified alkali lignin, 2 parts of polycarboxylate water reducing agent, 30 parts of fly ash, 1 part of calcium sulfoaluminate expansion agent, 1 part of silicone water repellent, and 330 parts of water.

[0036] Wherein, the preparation method of carbon fiber containing silane layer is as follows:

[0037] Water, methanol, and silane coupling agent KH-560 were mixed and stirred at a volume ratio of 8:1:1 for 40 minutes, then the pH of the system was adjusted to 6 with acetic acid, and the silane hydrolyzed solution was obtained by sealing and standing for 25 hours. The carbon fibers were added to the piranha solution ...

Embodiment 3

[0043] An anti-cracking mortar, comprising the following components in parts by weight:

[0044] 280 parts of Portland cement, 5 parts of PTB emulsion, 10 parts of VAE emulsion, 600 parts of light coarse sand, 100 parts of light fine sand, 1 part of hydroxypropyl methylcellulose, 10 parts of steel fiber with silane layer, poly 5 parts of ethylene glycol graft modified alkali lignin, 1 part of polycarboxylate water reducer, 20 parts of fly ash, 0.5 part of calcium sulfoaluminate expansion agent, 0.5 part of silicone water repellent, and 300 parts of water.

[0045]Wherein, the preparation method of silane layer steel fiber is as follows:

[0046] Water, methanol, and silane coupling agent KH-550 were mixed and stirred at a volume ratio of 6:1:1 for 20 minutes, then the pH of the system was adjusted to 4 with acetic acid, and the silane hydrolyzed solution was obtained by sealing and standing for 20 hours. The steel fibers were added to the piranha solution, After soaking for 1...

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Abstract

The invention relates to the field of building materials, in particular to anti-crack mortar and a preparation method thereof.The anti-crack mortar is prepared from cement, PTB emulsion, VAE emulsion, light coarse sand, light fine sand, hydroxypropyl methyl cellulose, toughening fibers, alkali lignin, a polycarboxylate superplasticizer, fly ash, a calcium sulphoaluminate expanding agent, an organic silicon water repellent and water. The anti-crack mortar provided by the invention has good mechanical properties and anti-crack performance.

Description

technical field [0001] The invention relates to the field of building materials, in particular to an anti-cracking mortar and a preparation method thereof. Background technique [0002] At present, in the construction of interior and exterior walls of buildings, mortar is a relatively common wall material. Mortar can not only beautify the interior and exterior walls of buildings, but also protect the walls to a certain extent. The cost of construction is economical and reasonable, and it is easy to obtain materials. However, ordinary mortar is in different restraint states due to the restraint with the matrix or adjacent parts. Due to the restraint, a certain tensile stress will be generated. Because the tensile strength of the mortar is not high, the mortar will crack, causing the wall to seep or even fall off. security risks. SUMMARY OF THE INVENTION [0003] Purpose of the invention: In view of the above technical problems, the present invention provides an anti-crack...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/10C04B2201/50C04B24/24C04B24/26C04B14/06C04B14/42C04B18/08C04B18/26C04B24/42C04B22/14C04B24/383C04B2103/302Y02W30/91
Inventor 资溪汪唯乐唐新华曾鹏辉
Owner 新化县天马建筑新材料科技有限公司
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