Light-weight high-intensity concrete and preparing method of light-weight high-intensity concrete

A technology of high-strength concrete and concrete, which is applied in the field of materials science, can solve the problems of high specific gravity and low strength of concrete, achieve low cost, simple production process, and improve the effect of particle gradation

Inactive Publication Date: 2015-11-11
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the above-mentioned technical problems in the prior art, the present invention provides lightweight high-strength concrete and a preparation method thereof. The lightweight high-strength concrete and its preparation method solve the problem of high concrete specificity and low strength in the prior art. question

Method used

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  • Light-weight high-intensity concrete and preparing method of light-weight high-intensity concrete
  • Light-weight high-intensity concrete and preparing method of light-weight high-intensity concrete
  • Light-weight high-intensity concrete and preparing method of light-weight high-intensity concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh 470kg of cement, 189kg of gravel, 248kg of ceramsite, 50kg of fly ash, 464kg of fine sand, 33kg of vitrified microbeads, 187kg of water, 20kg of slag powder, and 10kg of calcium aluminate per cubic meter of concrete according to the specified ratio. The above-mentioned materials are put into the mixer, and after being fully stirred and mixed evenly, the lightweight high-strength concrete can be obtained by molding and curing.

Embodiment 2

[0034] Weigh 450kg of cement, 180kg of crushed stone, 257kg of ceramsite, 50kg of fly ash, 464kg of fine sand, 53kg of vitrified microbeads, 187kg of water, 25kg of slag powder, and 10kg of calcium oxide per cubic meter of concrete. Put it into the mixer, and after fully stirring and mixing evenly, it can be molded and cured to obtain lightweight high-strength concrete.

Embodiment 3

[0036] Weigh 480kg of cement, 199kg of gravel, 238kg of ceramsite, 50kg of fly ash, 464kg of fine sand, 23kg of vitrified microbeads, 185kg of water, 30kg of slag powder, and 12kg of sodium silicate per cubic meter of concrete according to the specified ratio. The above-mentioned materials are put into the mixer, and after being fully stirred and mixed evenly, the lightweight high-strength concrete can be obtained by molding and curing.

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Abstract

The invention provides light-weight high-intensity concrete. 1m<3> concrete consists of 450 to 480kg of cement, 180 to 190kg of gravel, 238 to 250kg of porcelain granules, 30 to 60kg of fly ash, 434 to 474kg of fine sand, 23 to 63kg of glazed hollow beads, 180 to 195kg of water, 20 to 30kg of slag powder and 8 to 12kg of enhancing activating agents. The invention also provides a preparing method of the light-weight high-intensity concrete. According to the method, firstly, each ingredient is weighed according to the weight percentage; then, the ingredients are sufficiently and uniformly stirred, and are contained into a mold to be maintained; the light-weight high-intensity concrete can be obtained. The light-weight high-intensity concrete and the preparing method have the advantages that the porcelain granules are used for replacing partial coarse aggregates; the glazed hollow beads are used for replacing partial fine aggregates; the fly ash, the slag powder and the like are used as mixing materials to prepare the light-weight high-intensity concrete; on the premise of meeting the concrete pressure-resistant intensity, the concrete achieves the goal of light weight.

Description

technical field [0001] The invention belongs to the field of material science, and in particular relates to a building material, specifically a lightweight high-strength concrete with ceramsite, fly ash, slag micropowder and the like as main raw materials and a preparation method thereof. Background technique [0002] With the development of concrete technology and modern construction industry, higher requirements are put forward for the quality of concrete. High-strength, lightweight, improving the strength of engineering structure concrete and reducing the density of concrete have become the most important fields in the civil engineering field of various countries in the world today. topics of general concern. It is not only one of the main directions for the development of concrete technology, but also one of the important technical measures to save energy and resources. [0003] Modern urban construction increasingly adopts equipped buildings. On the one hand, it is nec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/30
CPCY02W30/91
Inventor 邵霞许嘉奕韩建平李庆秋沙锦超
Owner SHANGHAI INST OF TECH
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