The mortar specimens were fully immersed and semi-immersed (40 mm × 40 mm × 60 mm were immersed in a salt solution) in a 10% mass concentration of magnesium chloride solution, and the ambient air pressure and humidity remained unchanged.
Mortar specimens were fully soaked and semi soaked (40 mm × 40 mm × 60 mm (immersed in salt solution) in magnesium chloride solution with mass concentration of 10%, the ambient air pressure and humidity remain unchanged.
The mortar specimens are fully immersed and semi-immersed (40 mm × 40 mm × 60 mm is immersed in salt solution) respectively, and the ambient air pressure and humidity remain unchanged in 10% magnesium chloride solution.