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A vitrified microbead fire retardant board and a fire retardant heat preservation structure

A technology of vitrified microbeads and fire-resistant boards, which is applied in the field of building materials and building structures, can solve the problem that the thickness of the fire-proof layer of the outer wall cannot meet the fire-fighting requirements, the bonding between the insulation layer and the fire-proof layer is not firm, and the vitrification is microscopic. Problems such as high density of bead mortar layer, to achieve high non-combustibility, save raw materials, and high flexural strength

Active Publication Date: 2020-09-01
北鹏建材集团股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the technology of using vitrified microbeads to make the fireproof layer of external walls, vitrified microbeads are mixed in mortar to make a vitrified bead mortar layer to make the fireproof layer or fireproof insulation layer of the external wall. The bead mortar layer needs additives such as mortar and cement, and needs to be dried, dried, and requires special maintenance; specifically, this kind of vitrified microbead mortar layer has a high density and is inconvenient to carry during construction; and it is used as an external wall fireproof layer The thickness does not meet the fire protection requirements; 7-15 days of maintenance are required after production and processing, and the production and processing cycle is long; the insulation layer and the fire protection layer are not firmly bonded and easy to fall off
In addition to the above technologies, there are also expanded vitrified beads as lightweight aggregates, phenolic resin or emulsified asphalt or polyacrylonitrile as a binder to form a fireproof insulation layer through mold molding and sintering. This fireproof insulation layer needs to be compared with 100 parts of expanded vitrified glass is 50-200 parts of binder, resulting in limited content of expanded vitrified glass in the thermal insulation layer, and also requires a sintering process

Method used

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  • A vitrified microbead fire retardant board and a fire retardant heat preservation structure
  • A vitrified microbead fire retardant board and a fire retardant heat preservation structure

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preparation example Construction

[0023] The present invention also provides a preparation method for the above-mentioned vitrified microbead fire retardant board, which includes the following steps: uniformly mixing the vitrified microbeads with the binder; compacting and smoothing the vitrified microspheres in a flat mold, and the compression ratio is 1:2-1: 3. The time is 10-60 minutes; heating and forming, the heating temperature is 350°C-650°C, and the heating time is 10-60 minutes.

[0024] The vitrified microbead fire retardant board has the following excellent properties: (1) light density, at 300kg / m 3 Below; (2) Low thermal conductivity, below 0.08W / (m·K), preferably below 0.06W / (m·K); (3) It can be well compounded with any other thermal insulation board with a thermal conductivity of 5 cm or more ; (4) easy handling and construction; and (5) high strength.

[0025] In the preparation process of the vitrified microbead fire retardant board proposed by the present invention, there is no need for dryi...

Embodiment 1

[0035] Preparation of vitrified microbead fire retardant board:

[0036] 1) Prepare raw materials: vitrified microbeads (bulk density3 Vitrified microbeads account for 5vol%, and the bulk density is 80-120kg / m 3 Vitrified microbeads account for 35vol%, bulk density>120kg / m 3The vitrified microspheres account for 60vol%) 95 parts; binder (sodium silicate, sodium silicate and calcium silicate, or the mixture of sodium silicate and calcium silicate and calcium oxide) 5 parts; binder in aqueous solution The form is added, wherein the content of solid component is 5 parts;

[0037] 2) The raw materials are mixed evenly;

[0038] 3) The raw material is placed in a flat mold and compacted and smoothed, the compression ratio is 1:2.5, and the time is 30 minutes;

[0039] 4) Place the mold with the raw materials in a heating device to heat and set the shape, the heating temperature is 550° C., and the heating time is 20 minutes.

[0040] It has been determined that the density of t...

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Abstract

The invention relates to a glazed hollow bead fire retardant board and a fire retardant heat insulation structure. The glazed hollow bead fire retardant board takes glazed hollow beads as main raw materials and is formed in the mode that the glazed hollow beads are bonded together by using binder, and the volume percentage of the glazed hollow beads reaches 85 vol% or above. The glazed hollow bead fire retardant board and the fire retardant heat insulation structure do not need additives such as mortar and cement, also have the advantages that the glazed hollow bead fire retardant board and the fire retardant heat insulation structure are low in density, convenient to transport and short in production processing period, the fire retardant layer reaches 5 centimeters and accords with the fire protection rule, the production processing period is short, the water-proof layer, the heat insulation layer and the fire retardant layer are bonded firmly and cannot fall off, the bending strength is high, the compressive strength is high, and the glazed hollow bead fire retardant board and the fire retardant heat insulation structure are resistant to high temperature, belongs to fireproof grade A, and is higher in incombustibility and good in heat insulation performance.

Description

technical field [0001] The invention relates to a building material and a building structure, in particular to a vitrified microbead fire retardant board and a fire retardant and heat preservation structure. Background technique [0002] At present, in the technology of using vitrified microbeads to make the fireproof layer of external walls, vitrified microbeads are mixed in mortar to make a vitrified bead mortar layer to make the fireproof layer or fireproof insulation layer of the external wall. The bead mortar layer needs additives such as mortar and cement, and needs to be dried, dried, and requires special maintenance; specifically, this kind of vitrified microbead mortar layer has a high density and is inconvenient to carry during construction; and it is used as an external wall fireproof layer The thickness does not meet the fire protection requirements; 7 to 15 days of maintenance are required after production and processing, and the production and processing cycle ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/80E04B1/94
CPCE04B1/80E04B1/942
Inventor 刘康宁
Owner 北鹏建材集团股份有限公司
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