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A kind of environment-friendly anti-crack and high weather resistance external thermal insulation plastering mortar and preparation method thereof

A plastering mortar and external thermal insulation technology, which is applied in the field of building materials, can solve the problems of mortar impermeability, impact on durability, large elastic modulus, and easy cracking, so as to delay or prevent mortar cracks, improve physical structure, and easily The effect of compression deformation

Active Publication Date: 2021-12-07
启东市新联建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional dry-mixed mortar for external thermal insulation of external walls is generally mixed on the construction site. The measurement is inaccurate and the mixing is uneven, which will inevitably cause waste of resources and environmental pollution. The plastering mortar is a special mortar in the dry-mixed mortar. When the shrinkage rate is large and the waterproof performance is not good, it is the weak link in the construction quality problems such as wall cracking, peeling, peeling, and leakage.
Ordinary plastering mortar has poor workability, low cohesive force, and large shrinkage rate, which brings inconvenience to construction. Moreover, ordinary plastering mortar has a large elastic modulus and is easy to crack, resulting in impermeability and durability of mortar. great influence

Method used

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  • A kind of environment-friendly anti-crack and high weather resistance external thermal insulation plastering mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An environment-friendly anti-crack and high weather-resistance external thermal insulation plastering mortar, which comprises the following components in parts by weight: 50 parts of ordinary Portland cement with a strength grade of 42.5, 40 parts of quartz sand, vinyl acetate homopolymer glue 10 parts of powder, 10 parts of vitrified microspheres, 1 part of alkali-resistant glass fiber, 5 parts of water-retaining thickener, 5 parts of styrene resin and 1 part of waste polystyrene foam particles. The water-retaining thickener is starch ether and methyl A mixture of cellulose ether at a weight ratio of 3:1; the particle size of waste polystyrene foam particles is 1 mm; the diameter of alkali-resistant glass fiber is 3 μm, and the length is 2 mm; the particle size of quartz sand is 0.1 The particle diameter of the beads was 0.5 mm.

[0030] The above-mentioned raw materials are used to prepare an environmentally friendly anti-crack and high weather-resistant external ther...

Embodiment 2

[0035] An environment-friendly anti-crack and high weather-resistance external thermal insulation plastering mortar, which comprises the following components in parts by weight: 55 parts of ordinary Portland cement with a strength grade of 42.5, 45 parts of quartz sand, vinyl acetate and acrylate and 12 parts of higher fatty acid vinyl ester ternary copolymer rubber powder, 12 parts of vitrified microspheres, 2 parts of polypropylene fiber, 6 parts of water-retaining thickener, 6 parts of methyl methacrylate-butadiene copolymer and waste polystyrene 2 parts of ethylene foam particles, the water-retaining thickener is the mixture of starch ether and hydroxypropyl methylcellulose ether in a weight ratio of 3.5:1; the particle diameter of waste polystyrene foam particles is 2mm; the diameter of polypropylene fiber is 4μm, the length is 3mm; the particle size of quartz sand is 0.2mm, and the particle size of vitrified microbeads is 1mm.

[0036] The above-mentioned raw materials a...

Embodiment 3

[0041] An environment-friendly anti-crack and high weather-resistance external thermal insulation plastering mortar, the external thermal insulation plastering mortar includes the following components in parts by weight: 65 parts of ordinary Portland cement with a strength grade of 42.5, 50 parts of quartz sand, vinyl acetate and higher fatty acid 15 parts of vinyl ester copolymer rubber powder, 15 parts of vitrified microspheres, 3 parts of polyvinyl alcohol fiber, 8 parts of water-retaining thickener, 8 parts of styrene-butadiene copolymer and 3 parts of waste polystyrene foam particles, water-retaining The thickener is a mixture of starch ether and hydroxyethyl cellulose ether in a weight ratio of 4:1; the particle size of waste polystyrene foam particles is 2 mm; the diameter of polyvinyl alcohol fibers is 5 μm and the length is 3 mm; quartz sand The particle size of the glass beads is 0.3mm, and the particle size of the vitrified microbeads is 1.5mm.

[0042] The above-me...

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Abstract

The invention discloses an environment-friendly, crack-resistant, high-weather-resistance external thermal plaster mortar and a preparation method thereof. The external thermal thermal plaster mortar comprises the following components: cement, quartz sand, redispersible rubber powder, vitrified microbeads, crack-resistant fiber, Water-retaining thickener, binder and waste polystyrene foam particles, the preparation method of the external thermal insulation plastering mortar is: preparation of wet mix; preparation of dry mix; weighing redispersible rubber powder, anti-crack fiber and The water-retaining thickener is added to the dry mixture and mixed evenly to obtain an environmentally friendly crack-resistant high weather-resistant external thermal insulation mortar; the experimental results show that the environmentally friendly crack-resistant high weather-resistant external thermal insulation mortar prepared by the present invention has aging resistance, impact resistance, and Rain penetration and anti-cracking, etc., but also has a certain degree of elasticity and other multi-functional thin plaster protective layers to extend the service life of the external wall thermal insulation system.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an environment-friendly, crack-resistant, high-weather-resistance external thermal insulation plastering mortar and a preparation method thereof. Background technique [0002] Construction mortar is one of the largest materials in construction engineering, and it plays the role of bonding, cushioning and stress transmission in construction engineering. Construction plastering mortar is divided into ordinary plastering mortar and special plastering mortar. Ordinary plastering mortar is the most used plastering mortar in construction engineering. Its function is mainly to protect the wall and the ground from the erosion of wind, rain and harmful impurities, and improve moisture resistance and corrosion resistance. , anti-weather performance, increase durability; at the same time, it can make the building achieve a smooth, clean and beautiful surface; special plastering m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B111/27C04B111/76
CPCC04B28/04C04B2111/00017C04B2111/27C04B2111/76C04B2201/50C04B14/06C04B24/26C04B14/22C04B14/44C04B2103/465C04B2103/44C04B16/08
Inventor 高飞
Owner 启东市新联建筑材料有限公司