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A composite heat storage and temperature control ecological base material and its preparation method

An ecological base material and heat storage technology, applied in the field of slope engineering, can solve the problems of increasing slope and surface runoff velocity, weakening the effect of slope protection such as water and soil conservation, and reducing the safety factor of slope stability, so as to improve peak strength, Prevent sudden soil damage, good water retention effect

Active Publication Date: 2020-12-08
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the base material is mixed with soil and long-acting fertilizer. Due to the weight and cost constraints of the base material, the thickness of the slope surface is generally less than 10cm. Since the base material layer is thin, its temperature is greatly affected by the environment. Under the high temperature in the afternoon and the low temperature in the early morning of winter, the plants are easy to die
After the plants die, the stems and leaves will wither and the root strength will decrease, which will increase the runoff velocity on the slope surface and surface, weaken the slope protection effect such as water and soil conservation, and reduce the slope stability and safety factor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 A composite heat storage and temperature control ecological substrate, prepared by the following method:

[0024] At room temperature, mix polyethylene glycol PEG2000 and Hasuncast6213FR type high thermal conductivity epoxy resin at a mass ratio of 1:2, and use an electric mixer to fully stir the mixture of polyethylene glycol and epoxy resin until the polyethylene glycol The diol flakes or powders disappear completely, so that the polyethylene glycol is evenly dispersed in the epoxy resin glue; then the mixed solution is stirred in a water bath, and the temperature of the water bath is adjusted to 60 ° C. Stir continuously until the mixed solution is completely Gel to obtain a composite gel; age the composite gel at room temperature for 12 hours, then put it in an oven at 80°C for 15 hours, cool it to room temperature, and grind it to obtain PEG powder.

[0025] Take Wuhan Xunsi River channel silt as raw material soil, oven-dried, pass through a 1mm sieve, ta...

Embodiment 2

[0030] Example 2 A composite heat storage and temperature control ecological substrate, prepared by the following method:

[0031]At room temperature, mix polyethylene glycol PEG2000 and Hasuncast6213FR type high thermal conductivity epoxy resin at a mass ratio of 3:5, and stir the mixture of polyethylene glycol and epoxy resin fully with an electric mixer until the polyethylene glycol The diol flakes or powders disappear completely, so that the polyethylene glycol is evenly dispersed in the epoxy resin glue; then the mixed solution is stirred in a water bath, and the temperature of the water bath is adjusted to 60 ° C. Stir continuously until the mixed solution is completely Gel to obtain a composite gel; age the composite gel at room temperature for 12 hours, then put it in an oven at 80°C for 15 hours, cool it to room temperature, and grind it to obtain PEG powder.

[0032] Take the silt from the Xunsi River in Wuhan as the raw material soil, dry it in an oven, pass through...

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Abstract

The invention relates to the field of slope engineering, in particular to a compound ecological base material for heat storage and temperature control and a preparation method thereof. High latent heat of PEG is utilized to prepare a heat storage carrier, namely a mixture of PEG powder and epoxy resin, and the mixture is further mixed with riverway silt, a curing agent (cement), a soil conditioner(PAM) and water according to a certain proportion and then subjected to stirring and compacting to form a demanded phase-change material. The phase-change material ensures that the strength of compound soil meets ecological protection requirements of slopes and meanwhile has the characteristics of heat storage, temperature control and the like. The soil and surrounding environment temperature canbe adjusted, the situation that plants die in a high temperature condition is avoided, and therefore the compound ecological base material is a novel slope protection compound base material which isenvironmentally friendly, economical and suitable for use.

Description

technical field [0001] The invention relates to the field of slope engineering, in particular to a composite heat storage and temperature control ecological substrate and a preparation method thereof. The composite heat storage and temperature control ecological substrate is widely used in slope ecological protection. Background technique [0002] By setting (spraying or laying) the ecological protection base material on the slope, it can effectively overcome the insufficient fertility and poor water retention of the slope soil or rock mass, and provide a soil and fertilizer layer for the growth of slope protection plants. In the prior art, the base material is mixed with soil and long-acting fertilizer. Due to the weight and cost constraints of the base material, the thickness of the slope surface is generally less than 10cm. Since the base material layer is thin, its temperature is greatly affected by the environment. Under the high temperature in the afternoon and the low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00732C04B18/0418C04B14/386C04B24/2623C04B24/281C04B24/2652
Inventor 马强黄朝纲肖衡林牟佳杨义聪陈智李志胡智万娟梅利芳
Owner HUBEI UNIV OF TECH
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