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Inorganic phase change energy-saving and heat insulating ultra-light aggregate as well as preparation method thereof and application thereof

A technology of inorganic phase change and inorganic heat preservation, which is applied in the field of building materials and building material products, can solve the problems of low strength and durability, poor quality of lightweight aggregate concrete, and high density of lightweight aggregate concrete, so as to improve performance, Improve the ambient temperature and reduce the effect of internal and external temperature difference

Active Publication Date: 2013-02-13
贵州省建筑材料科学研究设计院有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of ultra-light aggregate and its preparation method and application, which can effectively solve the shortcomings of the prior art, especially the existing lightweight aggregate concrete is of poor quality, and the configured structure uses light The disadvantages of high density, low strength and low durability of aggregate concrete

Method used

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  • Inorganic phase change energy-saving and heat insulating ultra-light aggregate as well as preparation method thereof and application thereof
  • Inorganic phase change energy-saving and heat insulating ultra-light aggregate as well as preparation method thereof and application thereof
  • Inorganic phase change energy-saving and heat insulating ultra-light aggregate as well as preparation method thereof and application thereof

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Embodiment 1

[0035] Embodiment 1: A preparation method of inorganic phase change energy-saving heat preservation ultra-light aggregate, comprising the following steps: take the purchased inorganic liquid-solid phase change material with a phase change temperature of 30°C, heat it to make it liquid; The lightweight aggregate of 486Kg / m3 is placed in the liquid phase change material and soaked for 18 hours, taken out, and the surface liquid is filtered off to obtain the inorganic phase change energy-saving and thermal insulation ultra-light aggregate.

Embodiment 2

[0036] Embodiment 2: A preparation method of inorganic phase change energy-saving heat preservation ultra-light aggregate, comprising the following steps: taking an inorganic liquid-solid phase change material with a phase change temperature of 55°C, heating it to a liquid state; / m3 of lightweight aggregate is placed in the liquid phase change material and soaked for 24 hours, taken out, and the surface liquid is filtered off to obtain the inorganic phase change energy-saving and heat-preserving ultra-light aggregate.

Embodiment 3

[0037] Embodiment 3: A preparation method of inorganic phase change energy-saving heat preservation ultra-light aggregate, comprising the following steps: take a liquid-solid phase change material with a phase change temperature of 10°C, heat it to a liquid state; The lightweight aggregate of m3 is soaked in the liquid phase change material for 12 hours, taken out, and the surface liquid is filtered off to obtain the inorganic phase change energy-saving and heat-preserving ultra-light aggregate.

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Abstract

The invention discloses an inorganic phase change energy-saving and heat insulating ultra-light aggregate as well as a preparation method thereof and an application thereof. The preparation method comprises the following steps of taking a liquid-solid phase change material, so that the liquid-solid phase change material is in a liquid state; placing light aggregate in the liquid-solid phase change material; dipping the light aggregate for more than 12 hours; taking out the light aggregate; and filtering surface liquid on the light aggregate so as to obtain the ultra-light aggregate. According to the invention, through a diffusion principle, the phase change materials are filled in holes in the light aggregate; when ambient temperature is higher than the phase change temperature of the phase change material in the holes in the light aggregate, the inorganic phase change material in the holes in the light aggregate absorbs heat energy, so that the phase of the phase change material is changed in the heat accumulating process and the heat energy is stored in a physical structure of the phase change material; and when the ambient temperature is lower than the phase change temperature of the inorganic phase change material in the hole in the light aggregate, the phase of the phase change material is changed in the heat energy releasing process in order to achieve balance, so that a heat accumulating purpose of the phase change material is achieved. According the invention, the prepared ultra-light aggregate is more lightweight and heat insulated and can be used for effectively adjusting the ambient temperature.

Description

technical field [0001] The invention relates to an ultra-light aggregate, a preparation method and application thereof, and belongs to the technical field of building materials and building material products. Background technique [0002] Lightweight aggregate concrete is an ideal building material, which has many advantages such as light weight, thermal insulation, heat insulation, and good durability. It is one of the main development directions in the field of concrete today. At present, lightweight aggregate concrete has been widely used in bridges and various industrial and civil buildings, such as long-span bridges and super high-rise buildings. Due to the light specific gravity of the lightweight aggregate, it can reduce the load, which has significant practical significance; the surface of the lightweight aggregate has a thicker texture, which increases the surface friction coefficient of the aggregate, which can prevent the movement between the particles of the mixt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B111/40
Inventor 叶文号王勇甘四洋
Owner 贵州省建筑材料科学研究设计院有限责任公司
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