Sensible heat storage load-bearing wall material and preparation method and application thereof

Abstract

The invention discloses a sensible heat storage bearing wall material and a preparation method and application thereof. The material comprises the following raw materials in percentage by weight: 10-15% of high-grade aluminate cement, 40-50% of basalt, 5-10% of iron slag, 20-30% of sand, 3-5% of bauxite, 1-5% of graphite and 2-3% of carbon fiber. The preparation method comprises the following steps: dry mixing the raw materials, adding water accounting for 6%-9% of the raw material mixture, uniformly mixing, pouring into a steel template, demoulding after 24 hours, and curing at normal temperature for 72 hours. The material has the advantages of reasonable material selection, simple manufacturing process, high specific heat capacity, thermal conductivity and good compression resistance, can be used as a bearing structure of a greenhouse back wall, and can also store heat in the daytime for the greenhouse to use at night, so that the material can be popularized and applied as a substitute of a traditional greenhouse back wall material in production.

Description

technical field [0001] The invention relates to the technical field of solar greenhouse wall energy-saving materials, and more specifically relates to a sensible heat storage load-bearing wall material, a preparation method and an application thereof. Background technique [0002] Solar greenhouse is the main type of facility used in protected gardening in my country. It mainly uses the back wall material to store heat during the day and release heat to the room at night for production. The back wall is generally made of clay, clay bricks, cement bricks, etc. Ordinary materials are used as thermal storage materials. These materials generally have small thermal conductivity, slow thermal conductivity, and small specific heat capacity, which cannot fully absorb the heat entering the greenhouse during the day. [0003] In recent years, new latent heat storage materials based on organic phase change materials have been developed for the back wall of solar greenhouses. However, si...

AI Technical Summary

Problems solved by technology

Sensible heat storage materials are relatively safe, but their strength is low. Especially after adding heat pipes inside, the structural bearing capacity is very small, and basically cannot be used as a load-bearing material. At present, most of them are used as auxiliary materials for walls or independent heat storage devices. , the floor area increases, thus increasing the construction cost

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