sir, i used 43grade opc cement to my wall plastering,i have cured 20 days ,recently , white dots and white powder shades are appearing on walls, is it any defect by curing excess days? have any disadvantages by it ? please answer
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Answer Posted / senthil473
the white appearance or layer on the concrete is called efflorescence. it is caused by saline water. you might used high ppm saline water for curing.
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