THE EVOLUTION OF MACROSCOPIC PROPERTIES OF CONCRETE ERODED BY HIGH CONCENTRATION OF SULFATE AND MAGNESIUM SALTS
By way of indoor test,clear water,and magnesium sulfate solution with a concentration of 50 000 mg/L and 100 000 mg/L were configured,and the macroscopic property evolution law of concrete was studied by appearance,strength,mass change rate,and relative dynamic elastic modulus.The results showed that,in 100 000 mg/L magnesium sulfate solution,the relative dynamic modulus of concrete was reduced by nearly 80％compared with that before immersion.It shows that the high concentration of magnesium sulfate caused serious corrosion to the concrete.
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