AN INVESTIGATION OF THE EROSIVE EFFECT ON CONCRETE OF SOFT WATER OF LOW pH VALUE

摘要

An investigation is described in which the effect of soft moorland water on concrete has been studied by-tests on 4 in. concrete cube. Cubes were immersed in moorland water or tap water for periods up to four years and were then weighed and crushed to determine their compressive strength. After immersion in soft water, all types of concrete lost strength and weight to an extent which increased as the immersion was prolonged. Cubes made of Portland cement concrete of very high strength or high alumina cement concrete lost about one-third of their strength after four years' immersion.