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Stalk fiber toughening mortar and preparation method thereof

A straw fiber and mortar technology is applied in the field of straw fiber toughened mortar and its preparation, which can solve problems such as poor toughness of the mortar, and achieve the effects of enhancing adhesion performance, inhibiting generation and growth, and avoiding damage.

Inactive Publication Date: 2018-05-22
河南胜泽建筑保温工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problem of poor toughness of the above mortar, and provides a straw fiber toughened mortar and a preparation method thereof. The straw fiber toughened mortar of the present invention reduces cracks, enhances the continuity of medium materials, and reduces local stress concentration. Enhance mortar connectivity and enhance crack deflection toughness, thus improving the toughness of mortar material

Method used

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  • Stalk fiber toughening mortar and preparation method thereof
  • Stalk fiber toughening mortar and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0018] A straw fiber toughened mortar, comprising the following components in parts by weight: 20 parts of ordinary Portland cement, 50 parts of perlite, 15 parts of iron tailings, 15 parts of waste porcelain powder, 15 parts of slag powder, 8 parts of straw fiber, 1 part of starch ether, 0.5 part of hydroxypropyl cellulose, 3 parts of polyvinyl alcohol, 1 part of styrene-acrylic emulsion, and 2 parts of methyl cellulose ether.

[0019] The stalk fiber is obtained by drying corn stalks whose length is less than or equal to 5nm after shearing treatment, soaking in 8% sodium hydroxide for 10 hours.

[0020] The preparation method of the straw fiber toughened mortar comprises the following steps: accurately weighing various raw materials according to the weight ratio, first mixing ordinary Portland cement, perlite, iron tailings powder, waste porcelain powder, and starch ether evenly, Then, during the stirring process, straw fiber, hydroxypropyl cellulose ether, polyvinyl alcohol...

Embodiment 2

[0026] A straw fiber toughening mortar, comprising the following components in parts by weight: 40 parts of ordinary Portland cement, 70 parts of perlite, 35 parts of iron tailings, 30 parts of waste porcelain powder, 20 parts of slag powder, straw 20 parts of fiber, 1.5 parts of starch ether, 2 parts of hydroxypropyl cellulose, 8 parts of polyvinyl alcohol, 6 parts of styrene-acrylic emulsion, and 4 parts of methyl cellulose ether.

[0027] The stalk fiber is obtained by drying corn stalks whose length is less than or equal to 5nm after shearing treatment, soaking in 8% sodium hydroxide for 10 hours.

[0028] The preparation method of the straw fiber toughened mortar comprises the following steps: accurately weighing various raw materials according to the weight ratio, first mixing ordinary Portland cement, perlite, iron tailings powder, waste porcelain powder, and starch ether evenly, Then, during the stirring process, straw fiber, hydroxypropyl cellulose ether, polyvinyl al...

Embodiment 3

[0033] A straw fiber toughening mortar, comprising the following components in parts by weight: 25 parts of ordinary Portland cement, 55 parts of perlite, 20 parts of iron tailings, 20 parts of waste porcelain powder, 15 parts of slag powder, straw 10 parts of fiber, 1.2 parts of starch ether, 1 part of hydroxypropyl cellulose, 4 parts of polyvinyl alcohol, 2 parts of styrene-acrylic emulsion, and 3 parts of methyl cellulose ether.

[0034] The stalk fiber is obtained by drying corn stalks whose length is less than or equal to 5nm after shearing treatment, soaking in 8% sodium hydroxide for 10 hours.

[0035] The preparation method of the straw fiber toughened mortar comprises the following steps: accurately weighing various raw materials according to the weight ratio, first mixing ordinary Portland cement, perlite, iron tailings powder, waste porcelain powder, and starch ether evenly, Then, during the stirring process, straw fiber, hydroxypropyl cellulose ether, polyvinyl alc...

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Abstract

The invention discloses stalk fiber toughening mortar. The stalk fiber toughening mortar is prepared from the following ingredients in parts by weight: 20 to 40 parts of ordinary portland cement, 50 to 70 parts of perlite, 15 to 35 parts of iron tailings, 15 to 30 parts of waste porcelain powder, 15 to 20 parts of slag powder, 8 to 20 parts of straw fiber, 1 to 1.5 parts of starch ether, 0.5 to 2parts of hydroxy propyl cellulose, 3 to 8 parts of polyvinyl alcohol, 1 to 6 parts of styrene-acrylic emulsion and 2 to 4 parts of methyl cellulose ether. The method comprises the following steps of uniformly mixing the ordinary portland cement, the perlite, the iron tailings, the waste porcelain powder and the starch ether; then, adding the stalk fiber, the hydroxy propyl cellulose, the polyvinylalcohol, the styrene-acrylic emulsion and the methyl cellulose ether; finally adding water; performing mixing to obtain a finished product. The stalk fiber toughening mortar solves the problems of low tensile intensity, easy cracking and the like of the existing mortar due to poor toughness.

Description

technical field [0001] The invention relates to the field of building materials, in particular to straw fiber toughened mortar and a preparation method thereof. Background technique [0002] Mortar is a bonding substance used in building bricks. It is composed of a certain proportion of sand and cementing materials (cement, lime paste, clay, etc.) and water. Commonly used mortars are cement mortar, mixed mortar (or cement-lime mortar), lime mortar and clay mortar. [0003] The existing mortar is generally a kind of building material made of materials such as Portland series cement, sand, admixture and water according to a certain proportion through a certain mixing process, and is used for masonry and plastering projects. [0004] However, the existing mortar has problems such as low tensile strength and easy cracking due to poor toughness, which limits the use of mortar, and the existing toughening agent material has high cost and pollutes the environment, which is not con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B20/02C04B18/24C04B24/38C04B24/26C04B18/12C04B18/16
CPCC04B20/023C04B28/04C04B14/18C04B18/12C04B18/165C04B18/141C04B18/24C04B24/38C04B24/383C04B24/2623C04B24/2641Y02W30/91
Inventor 马志涛
Owner 河南胜泽建筑保温工程有限公司
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