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Dry-mixed mortar and preparation method thereof

A dry powder mortar and drying technology, which is applied in the field of building materials, can solve the problems of poor adhesion durability and insufficient bonding strength of adhesive mortar, and achieve the effects of durable adhesion, durable and stable adhesion, and increased bonding strength

Inactive Publication Date: 2022-01-21
洛阳绿筑建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a dry powder mortar and its preparation method to solve the problems of insufficient bonding strength and poor bonding durability of the bonding mortar

Method used

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  • Dry-mixed mortar and preparation method thereof

Examples

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Effect test

Embodiment 1

[0028] A dry powder mortar, comprising the following components in parts by weight: 80 parts of cement, 60 parts of modified quartz sand, 1 part of redispersible latex powder, 5 parts of epoxy resin curing agent, 8 parts of fly ash and external additives 0.5 part; the epoxy resin curing agent includes epoxy resin, curing agent and accelerator, and the external additive includes polypropylene fiber, lignosulfonate water reducing agent, cellulose ether and sodium tripolyphosphate.

[0029] Its preparation method comprises the following steps:

[0030] (1) After the quartz sand is subjected to wet ball milling, sieve to obtain the first quartz sand of 20-30 mesh and the second quartz sand of 60-80 mesh;

[0031] (2) Mix 20 parts of the first quartz sand prepared in step (1) with 40 parts of the second quartz sand, add 10 parts of butadienyl triethoxysilane coupling agent and stir and mix for 10 minutes, then add carboxymethyl 5 parts of base cellulose, 3 parts of sodium lignosul...

Embodiment 2

[0035] A dry powder mortar, comprising the following components in parts by weight: 85 parts of cement, 85 parts of modified quartz sand, 1 part of redispersible latex powder, 6 parts of epoxy resin curing agent, 10 parts of fly ash and external additives 0.5 part; the epoxy resin curing agent includes epoxy resin, curing agent and accelerator, and the external additive includes polypropylene fiber, lignosulfonate water reducing agent, cellulose ether and sodium tripolyphosphate.

[0036] Its preparation method comprises the following steps:

[0037] (1) After the quartz sand is subjected to wet ball milling, sieve to obtain the first quartz sand of 30-40 mesh and the second quartz sand of 80-90 mesh;

[0038] (2) Mix 25 parts of the first quartz sand prepared in step (1) with 50 parts of the second quartz sand, add 15 parts of γ-methacryloxypropyltrimethoxysilane and stir and mix for 15 minutes, then add A mixed solution composed of 8 parts of carboxymethyl cellulose, 4 part...

Embodiment 3

[0042] A dry powder mortar, comprising the following components in parts by weight: 90 parts of cement, 90 parts of modified quartz sand, 2 parts of redispersible latex powder, 8 parts of epoxy resin curing agent, 11 parts of fly ash and external additives 0.8 part; the epoxy resin curing agent includes epoxy resin, curing agent and accelerator, and the external additive includes polypropylene fiber, lignosulfonate water reducing agent, cellulose ether and sodium tripolyphosphate.

[0043] Its preparation method comprises the following steps:

[0044](1) After the quartz sand is wet ball milled, sieved to obtain the first quartz sand of 40-50 mesh and the second quartz sand of 90-100 mesh;

[0045] (2) Mix 25 parts of the first quartz sand prepared in step (1) with 50 parts of the second quartz sand, add 15 parts of γ-methacryloxypropyltrimethoxysilane and stir and mix for 15 minutes, then add A mixed solution composed of 8 parts of carboxymethyl cellulose, 4 parts of sodium ...

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Abstract

The invention discloses a dry-mixed mortar and a preparation method thereof. The dry-mixed mortar comprises, by weight, 80-100 parts of cement, 60-80 parts of modified quartz sand, 1-3 parts of redispersible latex powder, 5-10 parts of an epoxy resin curing agent, 8-15 parts of fly ash and 0.5-1 part of an external additive. The preparation method of the dry-mixed mortar comprises the following steps: mixing quartz sand with different particle sizes, adding a silane coupling agent, carboxymethyl cellulose, sodium lignin sulfonate and deionized water, and drying to obtain the modified quartz sand; dissolving the epoxy resin in an organic solvent, sequentially adding a curing agent and an accelerant, uniformly mixing, and curing to obtain the epoxy resin curing agent; and preparing the dry-mixed mortar by uniformly stirring and mixing all the components. Through the compounding synergistic effect of all the components, the prepared dry-mixed mortar is high in adhesive property and lasting and stable in adhesive property, and has the characteristics of being long in lasting time and not prone to falling off when being applied to ceramic tile adhesion.

Description

technical field [0001] A dry powder mortar and a preparation method thereof belong to the field of building materials, and in particular relate to a dry powder mortar and a preparation method thereof. Background technique [0002] Dry powder mortar, also known as dry mortar powder, dry-mixed mortar, or dry-mixed powder, refers to aggregates (such as quartz sand), inorganic cementitious materials (such as cement) and additives (such as polymers) that have been dried and screened. A granule or powder that is physically mixed in a certain proportion, transported to the construction site in the form of bags or bulk, and can be used directly after mixing with water. [0003] Dry powder mortar is divided into masonry mortar, plastering mortar, ground mortar, waterproof mortar, bonding mortar and self-leveling mortar according to different uses. Adhesive mortar has extremely high requirements for cohesiveness, especially the adhesive mortar for exterior wall ceramic tiles must hav...

Claims

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Application Information

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IPC IPC(8): C04B28/00
CPCC04B28/00C04B2201/50C04B2201/10C04B2111/00637C04B2103/0057C04B14/06C04B18/08C04B24/281C04B16/0633C04B22/16C04B24/18C04B24/383
Inventor 智程洋智程程智程琳智广询
Owner 洛阳绿筑建筑材料有限公司