Geopolymer-based concrete for block energy-storage tower, and preparation method thereof

A technology of geopolymer and concrete, which is applied in the direction of cement production, etc., can solve the problems of high strength of concrete block, strong impact resistance and weathering resistance, and good volume stability, so as to achieve the advantages of recycling, impact resistance and Strong weather resistance and good volume stability

Active Publication Date: 2020-01-03
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a geopolymer-based concrete for block energy storage tower and its preparation method, in order to solve the problem that the existing technology cannot realize the high strength, durability and impact resistance of the concrete block of the energy storage tower And the technical requirements of strong weathering resistance, high apparent density, good volume stability, self-compacting pouring, low energy consumption and low carbon preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: A geopolymer-based concrete for block energy storage towers

[0040] (1) Components

[0041] In parts by weight, it is made of the following raw materials:

[0042] 250 parts of ultra-fine steel slag powder, 185 parts of ultra-fine granulated blast furnace slag powder, 65 parts of ultra-fine fly ash, 70 parts of cement clinker, 50 parts of desulfurized gypsum, 1026 parts of hematite fine aggregate, hematite coarse bone 1674 parts of materials, 10 parts of slow-release polycarboxylate high-performance water reducer, 5 parts of zinc nitrate, 160 parts of water, and 60 parts of special-shaped steel fiber.

[0043] Among them, ultra-fine steel slag powder has a specific surface area ≥ 850m 2 / kg, activity index ≥ 100%;

[0044] Superfine granulated blast furnace slag powder has a specific surface area ≥ 850m 2 / kg, activity index ≥ 110%;

[0045] Ultrafine fly ash has a specific surface area ≥ 850m 2 / kg, activity index ≥ 90%;

[0046] Cement clinker is ge...

Embodiment 2

[0060] Example 2: A geopolymer-based concrete for block energy storage towers

[0061] (1) Components

[0062] In parts by weight, it is made of the following raw materials:

[0063] 250 parts of ultra-fine steel slag powder, 200 parts of ultra-fine granulated blast furnace slag powder, 50 parts of silica fume, 160 parts of sodium silicate, 40 parts of sodium hydroxide, 988 parts of barite fine aggregate, 1612 parts of barite coarse aggregate 8 parts of slow-release polycarboxylate high-performance water reducer, 6 parts of zinc nitrate, 150 parts of water, and 55 parts of special-shaped steel fiber.

[0064] Wherein, the difference with embodiment 1 is:

[0065] The technical performance of silica fume meets the standard of GB / T 51003 "Technical Specifications for the Application of Mineral Admixtures";

[0066] Sodium silicate, the modulus is 1.5-2.5;

[0067] Barite fine aggregate is made by crushing barite, and its particle size is 0-5mm;

[0068] Barite coarse aggregat...

Embodiment 3

[0074] Example 3: A geopolymer-based concrete for block energy storage towers

[0075] (1) Components

[0076] In parts by weight, it is made of the following raw materials:

[0077] 250 parts of superfine steel slag powder, 200 parts of superfine granulated blast furnace slag powder, 50 parts of silica fume, 60 parts of cement clinker, 17 parts of anhydrous calcium chloride, 40 parts of desulfurized gypsum, 992 parts of limonite fine aggregate, 1667 parts of limonite coarse aggregate, 8 parts of slow-release polycarboxylate high-performance water reducer, 6 parts of barium chloride, 160 parts of water, and 70 parts of special-shaped steel fiber.

[0078] Wherein, the difference with embodiment 1 is:

[0079] The technical performance of silica fume meets the standard of GB / T 51003 "Technical Specifications for the Application of Mineral Admixtures";

[0080] Limonite fine aggregate is made by crushing limonite, and its particle size is 0-5mm;

[0081] Limonite coarse aggr...

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Abstract

The invention discloses a geopolymer-based concrete for a block energy-storage tower, and a preparation method thereof. The invention aims to solve the problem that the technical requirements of highstrength, durability, high impact resistance, high weather resistance, high apparent density, self-compacting pouring, high volume stability, low energy consumption and low-carbon preparation of concrete blocks of the energy-storage tower cannot be met in the prior art. The geopolymer-based concrete is prepared from an ultrafine powder cementing material, a liquid excitant, a solid excitant, heavyaggregates, a water reducer, a retarder, water and steel fibers. The preparation method comprises the following steps: taking the raw materials; mixing and stirring the ultrafine powder cementing material, the solid excitant, the retarder and the steel fibers; adding the heavy aggregates, and performing stirring; adding the liquid excitant, the water reducer and water, and performing stirring; and molding the obtained mixture by a layered loading and layered vibrating process, and maintaining the molded mixture at normal temperature for 28 d. The preparation method utilizes a large amount ofsolid wastes, has energy-saving and environmentally-friendly properties, is suitable for preparing the concrete blocks of the energy-storage tower, and has good economic and social benefits.

Description

technical field [0001] The invention relates to the technical field of concrete engineering, in particular to a geopolymer-based concrete used for block energy storage towers and a preparation method thereof. Background technique [0002] The economic recession and natural disasters caused by global warming are attracting more and more people's attention. This summer, unbearable heat waves have swept across most parts of the northern hemisphere, and in the future, extreme weather such as strong typhoons and wildfires will become more frequent. The energy storage challenge looms. [0003] At present, compared with the traditional energy storage technology, the concrete block energy storage tower technology has been proposed. That is: when the power is redundant, use the tower crane to lift the concrete block to a high place, and convert the electric energy into the gravitational potential energy of the concrete block. When there is a power shortage, put the concrete block ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B28/26C04B12/00C04B111/20
CPCC04B12/005C04B28/144C04B28/26C04B2111/20C04B22/00C04B18/141C04B18/08C04B18/142C04B18/12C04B14/48C04B22/085C04B2103/302C04B18/146C04B14/26C04B22/124Y02P40/10
Inventor 李克亮陈爱玖汪志昊仝玉萍王慧贤马军涛
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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