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Sepiolite fiber modified vitrification bead thermal insulation mortar

A technology of sepiolite fiber and vitrified microbeads, which is applied in the field of thermal insulation mortar and its preparation, and vitrified microbeads, which can solve the problems of unstable construction performance, hollowing and cracking, and low cost, and achieve easy quality control and supply The effect of long time and excellent construction performance

Inactive Publication Date: 2009-10-07
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems of unstable construction performance, large shrinkage and hollowing and cracking existing in the existing vitrified microbead thermal insulation mortar materials. By modifying the vitrified microbead thermal insulation mortar with sepiolite fibers and optimizing the mix ratio, a product with excellent comprehensive performance is obtained. , lower cost vitrified microbead insulation mortar

Method used

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  • Sepiolite fiber modified vitrification bead thermal insulation mortar

Examples

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Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: A kind of sepiolite fiber modified vitrified bead insulation mortar, its components and proportioning (mass percentage) are:

[0031] Cement: 40.1%, fly ash: 10.9%, slaked lime: 3%, vitrified microspheres: 43.5%, sepiolite fiber: 0.6%, redispersible latex powder: 1.5%, methyl cellulose ether: 0.29% , starch ether: 0.07%, air-entraining agent: 0.01%.

[0032] Table 2 Example-1 Performance Index of Sepiolite Fiber Modified Vitrified Bead Thermal Insulation Mortar

[0033] project

Embodiment 2

[0034] Embodiment 2: A kind of sepiolite fiber modified vitrified bead insulation mortar, its components and proportioning (mass percentage) are:

[0035] Cement: 41.8%, fly ash: 7.5%, slaked lime: 2.5%, vitrified microspheres: 46.3%, sepiolite fiber: 0.5%, redispersible latex powder: 1.1%, methyl cellulose ether: 0.21% , Starch ether: 0.05%, air-entraining agent: 0.01%.

[0036] Table 3 Example-2 Performance indicators of sepiolite fiber modified vitrified microbead thermal insulation mortar

[0037] project

Embodiment 3

[0038] Embodiment 3: A kind of sepiolite fiber modified vitrified bead insulation mortar, its components and proportioning (mass percentage) are:

[0039] Cement: 53.1%, fly ash: 5%, slaked lime: 3%, vitrified microspheres: 36.9%, sepiolite fiber: 0.5%, redispersible latex powder: 1.2%, methyl cellulose ether: 0.25% , starch ether: 0.07%, air-entraining agent: 0.01%.

[0040] Table 4 Example-3 Performance Index of Sepiolite Fiber Modified Vitrified Bead Thermal Insulation Mortar

[0041] project

[0042] It can be seen from the above examples that sepiolite fiber-modified vitrified microbead thermal insulation mortar can prepare thermal insulation mortar with different thermal conductivity. All indicators meet the engineering requirements, and can be popularized and used as high-performance wall insulation materials.

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Abstract

The invention belongs to the building material field, relates to vitrification bead, thermal insulation mortar and preparation method thereof. A sepiolite fiber modified vitrification bead thermal insulation mortar has the following components of the mass percentages of: 52.5R common portland cement 35-55% fly ash5-15%, heavy calcium powder 1-5%, vitrification bead 35-55%, redispersable latex powder 0.5-2%, cellulose ether 0.1-0.3%, starch ether 0.025-0.07%, air-entrainer 0.01-0.02%, and sepiolite fiber 0.5-2%; wherein, the grades and proportions of the sepiolite fiber are: 3-5mm 30-40%, 5-10mm 40-50%, 10-15mm 20-30%. The epiolite fiber modified vitrification bead thermal insulation mortar of the present invention achieves the advantages of excellent construction performance, no-cracking, good bonding performance to wall, high strength, good thermal insulation performance and low cost.

Description

technical field [0001] The invention belongs to the field of building materials, and relates to vitrified microbeads, thermal insulation mortar and a preparation method thereof. Background technique [0002] my country's external wall insulation system mainly uses organic insulation materials. Although this type of thermal insulation material has good thermal insulation performance, it has poor weather resistance, poor volume stability, is not fire-resistant, and is easy to age. Compared with organic insulation materials, inorganic insulation mortar has many advantages. Inorganic thermal insulation mortar, especially vitrified microbead thermal insulation mortar, is a single-component thermal insulation mortar formed by pre-mixing vitrified microbead aggregate with inorganic cementitious materials and organic additives. It has low cost, high strength, and thermal insulation , heat insulation, fire prevention, weather resistance and other advantages, can form a thermal insu...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B18/08C04B14/22C04B14/38
CPCC04B2111/28C04B28/04Y02W30/91C04B14/24C04B14/28C04B14/4643C04B18/08C04B20/0052C04B24/38C04B24/383C04B2103/0057C04B2103/304
Inventor 王培铭张永明岳兴国张国防朱永超朱绘美
Owner TONGJI UNIV
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