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Low-energy-consumption ecological ultra-high-performance concrete and preparation method thereof

An ultra-high-performance, ecological technology, applied in climate sustainability, sustainable waste treatment, solid waste management, etc. The effect of low consumption, low production conditions and simple operation

Active Publication Date: 2022-05-27
POWERCHINA XIBEI ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the raw materials required by traditional UHPC are refined, ultra-fine and other high-energy-consuming products. The price is 7,000-10,000 yuan / ton, which is difficult to promote and apply in a large area

Method used

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  • Low-energy-consumption ecological ultra-high-performance concrete and preparation method thereof
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  • Low-energy-consumption ecological ultra-high-performance concrete and preparation method thereof

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preparation example Construction

[0044] The preparation method of the low-energy-consumption ecological ultra-high-performance concrete of the present invention, see figure 1 , including the following steps,

[0045] Step 1: Dry mix

[0046] Weigh 40-60 parts by weight of the glue material and 0.45-0.9 parts by weight of the admixture and put it into the stirring device for dry mixing for 110-130s, so that the glue material and the admixture are evenly mixed;

[0047] Step 2: Prepare the powder

[0048] Put 40-60 parts by weight of the aggregate into the stirring device, and then dry-mix for 110-130 s in the fiber stirring device prepared according to the volume ratio, so that the fibers are evenly distributed, and the mixed powder is prepared;

[0049] Step 3: Forced Stirring

[0050] Pour the weighed 6-12 parts by weight of water into the stirring device equipped with the uniformly mixed powder at one time, and force the stirring for 8-10 minutes to discharge the material.

Embodiment 1

[0053] The low-energy-consumption ecological ultra-high-performance concrete of this embodiment is weighed by weight: 40 parts of glue material, 60 parts of aggregates, 0.45 parts of admixtures, and 6 parts of water; The volume percentage of the total volume of the agent was added at 0.1%.

[0054] The total 40 parts of glue materials include: 32 parts of cement, 4 parts of microbeads, and 4 parts of mineral powder;

[0055] Among the 60 aggregates, all are sand;

[0056] A total of 0.45 parts of the admixture includes: 0.25 part of a water reducing agent, 0.1 part of an expansion agent, 0.05 part of a defoaming agent, and 0.05 part of a slump-retaining agent.

[0057] Above-mentioned each component carries out the preparation of ultra-high performance concrete with following preparation method:

[0058] Step 1: Dry mix

[0059] Put the components of the rubber material and the admixtures into the stirring device for dry mixing for 130s, so that the rubber material and the ...

Embodiment 2

[0066] The low-energy-consumption eco-type ultra-high performance concrete of this embodiment is weighed by weight: 50 parts of glue material, 50 parts of aggregate, 0.52 part of admixture, and 9 parts of water; the volume of PVA fiber is based on the proportion of glue material, aggregate and admixture. The volume percent of the total volume was added at 0.2%.

[0067] 50 parts of glue material include: 40 parts of cement, 5 parts of microbeads, and 5 parts of mineral powder;

[0068] Among the 50 aggregates, the aggregates are all sand;

[0069] The 0.52 part of the admixture includes: 0.3 part of a water reducing agent, 0.1 part of an expansion agent, 0.06 part of a defoamer, and 0.06 part of a slump-retaining agent.

[0070] Above-mentioned each component carries out the preparation of ultra-high performance concrete with following preparation method:

[0071] Step 1: Dry mix

[0072] Put the components of the rubber material and the admixtures into the stirring device ...

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Abstract

The invention discloses low-energy-consumption ecological ultra-high-performance concrete and a preparation method thereof, and the low-energy-consumption ecological ultra-high-performance concrete comprises the following components in parts by weight: 40-60 parts of a rubber material, 40-60 parts of aggregate, 0.45-0.9 part of an additive and 6-12 parts of water, the fiber accounts for 0.1%-0.3% of the total volume of the rubber material, the aggregate and the additive. The preparation method comprises the following steps: uniformly mixing the rubber material and the additive in a dry manner, adding the aggregate to prepare powder, adding water, and forcibly stirring to prepare the low-energy-consumption ecological ultra-high-performance concrete. According to the invention, low-energy-consumption raw materials, low cost, a traditional preparation process and a conventional curing mode are adopted, high-energy-consumption raw materials such as superfine cement and refined sand required by traditional ultra-high performance concrete are solved, and special preparation processes such as customized stirrers and steam curing are reduced; the cost control of the ultra-high performance concrete is facilitated, and the ecologicalization and low energy consumption of production materials are realized.

Description

technical field [0001] The invention belongs to the technical field of concrete materials, and in particular relates to a low-energy-consumption ecological ultra-high-performance concrete and a preparation method thereof. Background technique [0002] Domestic infrastructure construction projects involve more and more complex projects such as ultra-high and long-span, and the number of projects serving in complex environments increases, and the difficulty of project construction becomes more and more complex, such as prefabricated buildings, super high-rise structures, and long-span bridges. , offshore platforms, nuclear reactor containment and other special buildings have developed rapidly in recent years. Subsequently, higher requirements are put forward for concrete materials, that is, modern buildings require concrete materials to have high mechanical properties, strong durability, and at the same time meet the requirements of green and environmentally friendly preparati...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B16/06C04B14/24
CPCC04B28/04C04B16/0641C04B14/24C04B2201/52C04B18/141C04B14/02C04B2103/302C04B2103/0068C04B2103/308C04B2103/50Y02W30/91
Inventor 贺晶晶张勇胡炜卢浩丹樊李浩赵坤龙
Owner POWERCHINA XIBEI ENG