Method for improving the thermal conductivity of peat soil using silica aerogel
By incorporating silica aerogel into peat soil to improve its thermal conductivity, the problem of frost heave and thaw settlement in peat soil subgrades has been solved, achieving improved high-efficiency thermal insulation and frost resistance while reducing engineering costs.
CN122145088APending Publication Date: 2026-06-05HOHAI UNIV +1
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HOHAI UNIV
- Filing Date
- 2026-03-20
- Publication Date
- 2026-06-05
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Figure CN122145088A_ABST
Abstract
The application discloses a method for improving the heat conduction characteristics of peat soil by using silica aerogel. The basic physical parameters of the peat soil are tested, silica aerogel with different gradations and mass fractions is added to prepare a cutting ring sample, the heat conduction coefficient is tested by using a plane heat source method after molding and curing, and 0.5%-1% mass fraction and 3.61 microns particle size are determined as the optimal parameters for engineering. The method does not need to change the subgrade structure, has small mixing amount, is environment-friendly and pollution-free, can significantly reduce the heat conduction coefficient of the peat soil, effectively improves the heat insulation and anti-freezing performance of the subgrade, and reduces the frost heaving and thawing settlement disasters.
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