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High-strength heat insulating material for hydraulic concrete

A technology of hydraulic concrete and thermal insulation materials, which is applied in the field of concrete thermal insulation, can solve the problems of thermal insulation material promotion and application scope limitations, thermal insulation materials are easily damaged, and poor bonding ability, etc., and achieve low damage rate, cost saving, and bonding good performance effect

Inactive Publication Date: 2017-02-15
POWERCHINA CHENGDU ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above patents explain: whether it is an organic or inorganic system, the insulation material still has the following problems: the strength is low, and the insulation material is easily damaged and fails due to poor strength during use; the bonding ability is poor, and it is easy to fall off during use.
These problems greatly limit the promotion and scope of application of thermal insulation materials.

Method used

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  • High-strength heat insulating material for hydraulic concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The hydraulic concrete high-strength thermal insulation material is prepared from the following raw materials and weight ratios:

[0037] Component A of gelling material: 19 parts;

[0038] A component is isophorone diisocyanate.

[0039] Component B of gelling material: 21 parts;

[0040] The foaming component in component B is distilled water, the catalyst is potassium isooctanoate, and polypropylene glycol:distilled water:potassium isooctanoate=30:1:1.

[0041] Modified fly ash floating beads: 40 parts;

[0042] Modified hollow glass microspheres: 15 parts.

Embodiment 2

[0044] The hydraulic concrete high-strength thermal insulation material is prepared from the following raw materials and weight ratios:

[0045]Component A of gelling material: 26 parts;

[0046] A component is dicyclohexylmethane diisocyanate.

[0047] Component B of gelling material: 24 parts;

[0048] The foaming component in component B is distilled water, the catalyst is potassium acetate, and polypropylene glycol:distilled water:potassium acetate=30:4:1.

[0049] Modified fly ash floating beads: 25 parts;

[0050] Modified hollow glass microspheres: 30 parts;

[0051] Whiskers: 5 servings.

Embodiment 3

[0053] The hydraulic concrete high-strength thermal insulation material is prepared from the following raw materials and weight ratios:

[0054] Component A of gelling material: 33 parts;

[0055] A component is dicyclohexylmethane diisocyanate.

[0056] Component B of gelling material: 27 parts;

[0057] The foaming component in component B is cyclopentane, the catalyst is potassium isooctanoate, and polypropylene glycol:cyclopentane:potassium isooctanoate=30:2:1.

[0058] Modified fly ash floating beads: 20 parts;

[0059] Modified hollow glass microspheres: 35 parts;

[0060] Whiskers: 5 servings.

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Abstract

The invention discloses a high-strength heat insulating material for hydraulic concrete and belongs to the field of heat insulation of concrete. The high-strength heat insulating material for the hydraulic concrete, provided by the invention, has the aims of high strength, high heat-insulating performance and high cementing power. The heat insulating material contains the following ingredients in parts by weight: 40-70 parts of cementing material, 30-55 parts of modified inorganic filler and 0-5 parts of fibers, wherein the cementing material is prepared from a cementing material component A and a cementing material component B, the cementing material component A is diisocyanate, and the cementing material component B is a mixture of polypropylene glycol, a catalyst and a foaming ingredient. The heat insulating material does not crack, is high in strength and good in heat-insulating performance, has an excellent bonding property with matrix and is a hydraulic dam heat insulation protective material with a relatively high application value.

Description

technical field [0001] The invention belongs to the field of thermal insulation of concrete, and in particular relates to a high-strength thermal insulation material of hydraulic concrete. Background technique [0002] The large-volume concrete buildings represented by hydraulic concrete structures will be significantly affected by the ambient temperature. This effect is manifested in two aspects: the change of the ambient temperature at the initial stage of pouring will easily lead to the generation and expansion of cracks; the drastic change of the ambient temperature during the operation period will be significantly Affecting the stress distribution inside the concrete structure, especially the development of concrete thin-walled arch dam construction technology, the drastic change of the internal stress distribution of mass concrete seriously affects the quality and safety of the building. At present, most commonly used thermal insulation measures for dams are surface-pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/10C04B111/34C04B111/40
CPCC04B26/10C04B2111/00293C04B2111/343C04B2111/40C04B2201/32C04B2201/50C04B24/12C04B22/002C04B24/04C04B18/082C04B14/24C04B14/383C04B24/00
Inventor 田先忠丁庆杨代六郑凯赵鸿远何树林徐中浩
Owner POWERCHINA CHENGDU ENG
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