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溶岩の噴出は,スノーボール・アースに導いたかもしれない

  • 0Maya Wei-Haas is a science journalist in Washington, D.C.
Science (New York, N.Y.) +

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2023年7月13日

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In cold weather, masonry construction requires specific precautions to ensure mortar does not freeze before curing, as this can significantly weaken its strength and watertightness. Mortar temperature should be maintained between 60°F and 80°F to support proper hydration and curing. Below 40°F, mortar water must be heated, but should not exceed 120°F as high temperatures can reduce mortar's compressive and bond strength.
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