Early strength concrete with frost resistance and preparation method thereof

A concrete and performance technology, applied in the field of building materials, can solve the problems of the influence of concrete compressive strength and the difficulty of controlling the air content of concrete, etc., and achieve the effect of improving frost resistance and strength performance, and improving early strength

Inactive Publication Date: 2021-08-20
杭州三中新型建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that after the air-entraining agent is added to the concrete, the air content inside the concrete is not easy to control, and when the air content in the concrete is too high, the compressive strength of the concrete is likely to be affected. room for improvement

Method used

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  • Early strength concrete with frost resistance and preparation method thereof
  • Early strength concrete with frost resistance and preparation method thereof
  • Early strength concrete with frost resistance and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0053] This embodiment discloses a kind of early-strength concrete with antifreeze performance, comprising the following components:

[0054] Cement 200kg; water 160kg; sand 765kg; stone 1050kg; polycarboxylate superplasticizer 5kg; fly ash 80kg; silicon powder 72kg; tantalum disilicide 7kg;

[0055] In this embodiment, the additive is silicon dioxide.

[0056] This embodiment also discloses a preparation method of early-strength concrete with frost resistance, comprising the following steps:

[0057] Step (1), add 200kg of cement, 765kg of sand, 1050kg of stone, 80kg of fly ash, 72kg of silicon powder, 7kg of tantalum disilicide, 5kg of diethylene glycol and 80kg of water into the mixer machine, and stir evenly to form a premix.

[0058] In step (2), continue to add 5 kg of polycarboxylate superplasticizer and 2 kg of silicon dioxide to the premix while stirring, and stir evenly to form an intermediate mixture.

[0059] In step (3), add the remaining 80 kg of water to the i...

Embodiment 2

[0062] The difference with embodiment 1 is:

[0063] Early-strength concrete with frost resistance consists of components of the following qualities:

[0064]Cement 207kg; water 150kg; sand 770kg; stone 1055kg; polycarboxylate superplasticizer 3kg; fly ash 85kg; silicon powder 69kg; tantalum disilicide 3kg;

Embodiment 3

[0066] The difference with embodiment 1 is:

[0067] Early-strength concrete with frost resistance consists of components of the following qualities:

[0068] Cement 215kg; water 155kg; sand 760kg; stone 1060kg; polycarboxylate superplasticizer 4kg; fly ash 75kg; silicon powder 65kg; tantalum disilicide 5kg;

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Abstract

The invention relates to the field of building materials, and particularly discloses early strength concrete with anti-freezing performance and a preparation method thereof. The early strength concrete with frost resistance comprises the following components: cement; water; sand; a stone; a water reducing agent; fly ash; silicon powder; tantalum disilicide; diethylene glycol; and an additive. The preparation method comprises the following steps: step (1) preparing a premix; (2) preparing an intermediate mixture; (3) preparing a concrete mixture; and (4) curing and forming to obtain the early strength concrete with the frost resistance. According to the invention, the early strength concrete with the anti-freezing performance has the advantages of being good in strength performance and anti-freezing performance at the same time; and the preparation method provided by the invention has the advantages of simple preparation and easy industrial production.

Description

technical field [0001] The application relates to the field of building materials, more specifically, it relates to an early-strength concrete with frost resistance and a preparation method thereof. Background technique [0002] Because the concrete structure is prone to cracking at low temperatures, when the concrete is applied on the highway, the cracking of the concrete will easily cause unevenness on the road surface, and may even cause the vehicle to roll over, causing traffic accidents . Therefore, frost-resistant concrete is usually used as a raw material for laying roads in cold regions. [0003] At present, the main measure to improve the antifreeze performance of concrete is to add air-entraining agent to the concrete mixture, so that a large number of small and stable closed air cells will be generated inside the concrete, so that the interior of the concrete will have a certain air content, thereby improving the antifreeze performance of concrete . [0004] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/20
CPCC04B28/04C04B2111/20C04B2201/50
Inventor 郑正顺詹强向祚铁金科益
Owner 杭州三中新型建材科技有限公司
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