A kind of energy storage geopolymer and preparation method thereof

A geopolymer and energy storage technology, applied in cement production and other directions, can solve problems such as no energy saving effect, and achieve the effects of reducing fluctuation, improving comfort, and reducing environmental energy consumption

Active Publication Date: 2020-08-14
HUADIAN ELECTRIC POWER SCI INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, building energy conservation has become an important part of energy conservation, but the current geopolymers do not have the effect of energy conservation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] The invention also provides a method for preparing energy storage geopolymers, which includes the following steps:

[0036] A) Mixing 20-100 parts by weight of fly ash and 10-20 parts by weight of slag to obtain a powder material;

[0037] B) 20-50 parts by weight of caustic soda and 5-30 parts by weight of sodium hydroxide are prepared into caustic soda solution and sodium hydroxide solution;

[0038] C) Mixing the powder material, the soaking alkali solution and the sodium hydroxide solution, and curing after pouring to obtain an energy storage geopolymer.

[0039] In the present invention, the type, source and amount of each raw material are consistent with the type, source and amount of each raw material mentioned above, and will not be repeated here.

[0040] In the present invention, the concentration of the sodium hydroxide solution is preferably 0.5 to 3 mol / L, more preferably 1 to 2 mol / L; the concentration of the soaking alkali solution is preferably 1.2 to 6 mol / L, mor...

Embodiment 1

[0047] Mix 60 parts by weight of fly ash and 18 parts by weight of slag to obtain a powder material;

[0048] Prepare 20 parts by weight of sodium hydroxide into a sodium hydroxide solution with a concentration of 2mol / L, 35 parts by weight of soaking alkali into a soaking alkali solution with a concentration of 4mol / L, mix the sodium hydroxide solution and the soaking alkali solution, Get the stimulant solution;

[0049] The powder material is mixed with the activator solution, stirred evenly, and then cast and molded at room temperature, and cured at room temperature for 7 days to obtain an energy storage geopolymer.

[0050] The performance of the energy storage geopolymer was tested, and the results are shown in Table 1.

Embodiment 2

[0052] Mix 100 parts by weight of fly ash and 20 parts by weight of slag to obtain a powder material;

[0053] Prepare 30 parts by weight of sodium hydroxide into a sodium hydroxide solution with a concentration of 3 mol / L, and 50 parts by weight of soaking alkali into a soaking alkali solution with a concentration of 6 mol / L. Mix the sodium hydroxide solution and the soaking alkali solution, Get the stimulant solution;

[0054] The powder material and the activator solution are mixed, stirred uniformly, and cast and molded at room temperature, and cured at room temperature for 7 days to obtain an energy storage geopolymer.

[0055] The performance of the energy storage geopolymer was tested, and the results are shown in Table 1.

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Abstract

The invention provides an energy-storing geopolymer. The energy-storing geopolymer is prepared from the following raw materials: 20-100 parts by weight of coal ash, 10-20 parts by weight of slag, 20-50 parts by weight of natron and 5-30 parts by weight of sodium hydroxide. According to the energy-storing geopolymer, industrial waste residues are adopted as a raw material, the excitant type is changed to prepare the geopolymer with energy-storing performance, not only are the advantages of low heat conductivity coefficient, high curing speed, high production efficiency, low cost and wide raw material resources of existing base geopolymers maintained, but also energy can be absorbed and released, the effects of saving energy and protecting the environment are achieved truly, and the defectsof similar materials are overcome; according to the geopolymer, a heat conductivity coefficient is 0.05-0.12 W / (m*K), the compressive strength is 0.6-80 Mpa, and a potential heat value reaches 170-190KJ / m2. The invention further provides a preparation method of the energy-storing geopolymer.

Description

Technical field [0001] The invention belongs to the technical field of building materials, and particularly relates to an energy storage geopolymer and a preparation method thereof. Background technique [0002] Geopolymer is a kind of inorganic [SiO 4 ], [AlO 4 ] Tetrahedron is a new type of inorganic silica-aluminum cementitious material with a three-dimensional network-like bonding structure. Geopolymers have a wide range of raw materials, convenient preparation, low energy consumption, and basically no CO emissions 2 , At the same time, it has high mechanical properties and excellent high temperature resistance. The engineering application prospect is very wide. The main raw material used by geopolymer is industrial waste residue, which can effectively reduce the environmental pollution of industrial solid waste. Therefore, it is a green high-performance building material that meets the needs of the country to develop environmentally friendly and energy-saving building materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/24C04B12/00
CPCC04B7/243C04B12/005Y02P40/10
Inventor 卢梅王群英李艳魏雅娟刚良
Owner HUADIAN ELECTRIC POWER SCI INST CO LTD
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