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Easily biodegradable foam concrete

A foam concrete and easy-to-decompose technology, applied in the field of building materials, can solve the problems that cannot be easily decomposed and recycled

Inactive Publication Date: 2015-11-18
NANTONG KEDA BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are some new types of foamed concrete, such as the Chinese patent application number 201410563758.6, which discloses a foamed concrete and its preparation method. The concrete adopts a mixed foaming technology and uses aluminum powder and a foaming agent for foaming. This concrete The water resistance of the material is also strong, which cannot meet the requirements of easy decomposition and recycling

Method used

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Examples

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Embodiment 1

[0011] The invention provides an easily decomposable foam concrete, which comprises the following materials in mass fraction: clay: 853-947, gypsum: 255-270, water: 170-175, cement: 65-74, river sand: 147-166, admixture : 4.2-4.5; animal foaming agent 0.3-0.5.

[0012] The easily decomposable foam concrete provided by the present invention adopts gypsum, clay and other air-hardened gel materials that are easily soluble in water and acid, and the raw materials are cheap and have wide sources; at the same time, animal foaming agents are used to inject through physical foaming, making the preparation The resulting concrete contains a large number of voids, the structure is easy to decompose, and it is easy to dissolve in acid and water to disintegrate the structure, and the weight of the concrete is reduced, which is convenient for transportation.

[0013] Optionally, the mass fraction of materials in the easily decomposable foam concrete is specifically: clay: 900, gypsum: 260, ...

Embodiment 2

[0026] A method for preparing easily decomposable foamed concrete. The following mass fraction materials are mixed and stirred: clay: 853-947, gypsum: 255-270, water: 170-175, cement: 65-74, river sand: 147-166 , Admixture: 4.2-4.5;

[0027] In the process of stirring, the animal foaming agent with a mass fraction of 0.3-0.5 is injected by physical foaming.

[0028] Optionally, the additive is a water reducing agent.

[0029] On the one hand, the concrete in the present invention adds animal and plant foaming agents in the form of physical foaming, and adds them in the process of stirring other materials, so that the foaming in the process of concrete production is more uniform; on the other hand, gypsum, clay, etc. Water-resistant and acid-resistant air-hardened gel materials make the building stronger in compression and tensile strength after solidification. At the same time, the concrete components are poor in water and acid resistance and are easy to decompose and recycle...

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Abstract

The present invention provides an easily biodegradable foam concrete, comprising the following materials by weight: 853-947 parts of clay, 255-270 parts of gypsum, 170-175 parts of water, 65-74 parts of cement, 147-166 parts of river sand, 4.2-4.5 parts of a water reducer and 0.3-0.5 part of an animal foaming agent. The present invention provides the easily biodegradable foam concrete; the added foaming agent through physical foaming makes the foam more uniform; gypsum, clay and other non-water-resistant and acid gas-resistant hard gel material realizes high pressure and tensile resistance after coagulation of the building strength; and the concrete components have weak acid and water resistance and are easy to decompose and recover.

Description

technical field [0001] The invention relates to the field of building materials, in particular to easily decomposable foamed concrete. Background technique [0002] With the diversification and rapid development of the construction industry, special concrete suitable for various industries and various needs has been continuously developed and applied. [0003] The increasing number of construction wastes in cities, rural areas and fields not only affects the original environment and landforms, but also causes waste and pollution of resources. And some temporary buildings have specific uses in a short period of time, such as field testing, urban temporary buildings, etc. Among them, concrete is the key material, and the realization of concrete decomposition and recycling has great practical significance. [0004] The existing concrete has strong strength and water resistance, which makes the concrete stronger and more durable. There are some new types of foamed concrete, su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/10C04B28/14
Inventor 庞正扬黄国春朱赋徐晓芬
Owner NANTONG KEDA BUILDING MATERIALS
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