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Preparation method of water-retentive high-toughness building mortar

A toughness and mortar technology, applied in the field of water-retaining and high-toughness building mortar preparation, can solve the problems of low tensile strength and bond strength, high elastic modulus, poor water retention, etc., to improve toughness and elasticity, high toughness, increase Hydrophilic effect

Inactive Publication Date: 2018-09-07
杨帮燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problems mainly solved by the present invention aim at the defects of the current traditional building mortars such as low tensile strength and bonding strength, poor water retention, high elastic modulus and poor toughness, brittle nature and easy cracking, and provide a kind of Preparation method of water-retaining high-toughness building mortar

Method used

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  • Preparation method of water-retentive high-toughness building mortar

Examples

Experimental program
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Effect test

example 1

[0021] Collect the ramie stems and cut them into 10cm ramie segments with a guillotine, put the ramie segments into the blasting tank, pressurize the pressure in the blasting tank to 0.9MPa with a booster pump, and open the blasting tank after 1-2 minutes of pressure-holding treatment. The exhaust valve reduces the pressure in the blasting tank to normal pressure instantaneously, and discharges the material to obtain a micro-exploded ramie section; spread the obtained micro-exploded ramie section on the ground, and repeatedly rolls it with a stone roller for 15 minutes. After the rolling, a loose ramie section is obtained. For ramie fiber bundles, mix the ramie fiber bundles with 20% sodium hydroxide solution in a mass ratio of 1:10, put them in a water bath, and soak for 10 hours at a water bath temperature of 50°C; after soaking, filter Separate the filter residue, mix the filter residue with water and lemon juice at a mass ratio of 2:10:1, put it into a high-pressure cooking...

example 2

[0023]Collect the ramie stalks and cut them into 10cm ramie segments with a guillotine, put the ramie segments into the blasting tank, pressurize the pressure inside the blasting tank to 0.9MPa with a booster pump, keep the pressure for 2 minutes, and then open the exhaust of the blasting tank Valve, so that the pressure in the blasting tank is instantly reduced to normal pressure, and the material is discharged to obtain a micro-exploded ramie segment; the obtained micro-exploded ramie segment is flattened on the ground, and rolled repeatedly with a stone roller for 18 minutes, and loose ramie fibers are obtained after the rolling. bundles, mix ramie fiber bundles and 20% sodium hydroxide solution in a mass ratio of 1:10, put them in a water bath, and soak for 11 hours at a water bath temperature of 55°C; after soaking, filter and separate to obtain Filter residue, mix the filter residue, water and lemon juice at a mass ratio of 2:10:1, put it into a high-pressure cooking tank...

example 3

[0025] Collect the ramie stalks and cut them into 10cm ramie segments with a guillotine, put the ramie segments into the blasting tank, pressurize the pressure in the blasting tank to 1.0MPa with a booster pump, and open the blasting tank to exhaust after 2 minutes of pressure maintaining Valve, so that the pressure in the blasting tank is instantly reduced to normal pressure, and the material is discharged to obtain a micro-exploded ramie segment; the obtained micro-exploded ramie segment is flattened on the ground, and rolled repeatedly with a stone roller for 20 minutes, and loose ramie fibers are obtained after rolling. bundles, mix ramie fiber bundles and 20% sodium hydroxide solution in a mass ratio of 1:10, put them in a water bath, and soak for 12 hours at a water bath temperature of 60°C; after soaking, filter and separate to obtain Filter residue, mix the filter residue, water and lemon juice at a mass ratio of 2:10:1, put it into a high-pressure cooking tank, heat it...

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Abstract

The invention relates to a preparation method of water-retentive high-toughness building mortar and belongs to the technical field of preparation of building materials. The preparation method comprises steps as follows: ramie fiber is taken as a raw material and is subjected to pressurized blasting and alkaline leaching in sequence, the ramie fiber after alkaline leaching is autoclaved, and toughed fiber is obtained; a mortar base material, collagen and biogas slurry are mixed and fermented, the mortar base material is modified with microorganisms, and a modified base material is obtained; finally, the modified base material and the toughed fiber are blended, a mixture is supplemented with other raw materials, and the water-retentive high-toughness building mortar can be prepared. The prepared water-retentive high-toughness building mortar is good in water-retaining property, excellent in toughness and good in bonding strength and has broad application prospect.

Description

technical field [0001] The invention relates to a method for preparing water-retaining high-toughness building mortar, which belongs to the technical field of building material preparation. Background technique [0002] With the advancement of modern construction technology and the improvement of human living standards, people have put forward more and higher requirements for the performance of building mortar. For example, the adoption of tile bonding thin layer technology requires tile bonding mortar to have higher bonding strength. The large number of applications of blocks and wall materials with high water absorption performance and the improvement of anti-crack and anti-seepage requirements of external walls require mortar with good bonding performance and crack resistance. However, traditional cement mortar has many disadvantages, such as high compressive strength but low tensile strength and bond strength, poor water retention, high elastic modulus and poor deformati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B20/02C04B20/04C04B14/06C04B14/28C04B14/26C04B14/18C04B18/24
CPCC04B20/02C04B20/023C04B20/04C04B28/00C04B2201/50C04B18/248C04B22/147C04B24/18C04B24/42C04B24/045C04B14/068C04B14/28C04B14/26C04B14/185C04B20/026Y02W30/91
Inventor 杨帮燕张晶
Owner 杨帮燕
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