Full-light concrete for concrete structure floor and preparation process thereof

A technology of all-light concrete and concrete structure, applied in the field of concrete building materials, can solve the problems of poor construction performance and low strength of all-light concrete, and achieve the effects of improving construction performance and mechanical performance, reducing floating situation and reducing self-weight.

Inactive Publication Date: 2021-02-26
武汉昌华汇鑫建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to improve the problems of low strength and poor construction performance of all-light concrete, the application provides a full-light concrete for concrete structure floor and its preparation process

Method used

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  • Full-light concrete for concrete structure floor and preparation process thereof
  • Full-light concrete for concrete structure floor and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of all-light concrete for concrete structure floor slab, its component content is shown in Table 1.

[0037] Table 1 embodiment 1-5 component content table

[0038]

[0039] Among them, the density of shale ceramsite is 364kg / m 3 , The porosity is 42% and the continuous gradation is 5-15mm.

[0040] The particle size of ceramic hollow microspheres is 0.4-0.8mm, and the bulk density is 153kg / m 3 , the wall thickness is between 0.05-0.1mm.

[0041] Steel fiber is selected as the reinforcing fiber, the length is 5-8mm, and the diameter is 0.2-0.3mm.

[0042] The water reducing agent is carboxylic acid water reducing agent.

[0043] The thickener is selected dextrin.

[0044] This embodiment also provides a method for preparing the above-mentioned full-light concrete for the concrete structure floor, including a cementitious material premixing process, a light aggregate premixing process, and a concrete mixing process;

[0045] Among them, premixing of cemen...

Embodiment 2

[0048] A kind of all-light concrete for concrete structure floor. The difference between this embodiment and Embodiment 1 is that its component content is shown in Table 1.

[0049] This embodiment also provides a preparation method of the above-mentioned full-light concrete for the concrete structure floor. The difference between this preparation method and Embodiment 1 is that the concrete mixing process is as follows: Concrete mixing: adding pre-mixed aggregates to the pre-mixed concrete In the glue material, stir while adding and keep stirring for 160s after adding, then continue to add water reducer and water, and stir for 130s to mix all-light concrete.

Embodiment 3

[0051] A kind of all-light concrete for concrete structure floor. The difference between this embodiment and Embodiment 1 is that its component content is shown in Table 1.

[0052] This embodiment also provides a preparation method of the above-mentioned full-light concrete for the concrete structure floor. The difference between this preparation method and Embodiment 1 is that the concrete mixing process is as follows: Concrete mixing: adding pre-mixed aggregates to the pre-mixed concrete In the rubber, stir while adding and keep stirring for 165s after the addition is complete, then continue to add water reducer and water, and stir for 135s to mix all-light concrete.

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Abstract

The invention relates to the field of concrete building materials, and particularly discloses full-light concrete for a concrete structure floor and a preparation process of the full-light concrete. The full-light concrete for the concrete structure floor comprises the following components in parts by weight: 400-500 parts of cement, 250-350 parts of coal ash, 460-540 parts of shale ceramsite, 80-100 parts of ceramic hollow microspheres, 35-45 parts of reinforced fibers, 8-14 parts of a water reducing agent, 6.5-8.5 parts of a thickening agent and 300-400 parts of water. The preparation methodcomprises a cementing material premixing procedure, a light aggregate premixing procedure and a concrete mixing procedure. A composition/product provided by the invention can be used for structural floors, and has the advantages of light weight, high strength and excellent construction performance.

Description

technical field [0001] This application relates to the field of concrete building materials, more specifically, it relates to a kind of all-light concrete for concrete structure floor slab and its preparation process. Background technique [0002] Full-light concrete is a lightweight aggregate concrete prepared with light coarse aggregate, light fine aggregate, cementitious material and water. It is a load-bearing and heat-insulating material. Europe, the United States and other countries use all-light concrete as wall panels, roof panels, small hollow blocks, etc., and are used in high-rise and long-span buildings. Since the 1990s, my country has promoted the application of all-light concrete wall panels in industrial and civil buildings. [0003] For example, the Chinese patent with the patent publication number CN106278377A discloses a fully recycled lightweight aggregate concrete self-insulating lightweight wallboard and a preparation method thereof. The composition and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B18/02C04B111/40
CPCC04B28/02C04B18/027C04B2111/40C04B2201/50
Inventor 韩浩张田源程松熊惕
Owner 武汉昌华汇鑫建材有限公司
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