Feb 24, 2018
Water permeability and difficult evaporation Once the red sandstone disintegrates or is rolled into fine particles, its water absorption is strong and it quickly reaches a saturated state. Although the compactness can meet the requirements, it still has a relatively large porosity. Relatively strong, red sandstone after water absorption or saturation, strong light, slow evaporation of water under the action of wind.
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Mar 26, 2020
Mar 24, 2020
