a Why is it important that the concrete masonry units meet certain absorption requirements? b. A portion of a normal-weight concrete masonry unit was tested for absorption and moisture content and produced the following masses: mass of unit as received = 1.95 kg saturated mass of unit = 2.13 kg oven-dry mass of unit = 1.91 kg immersed mass of unit = 0.95 kg Calculate the absorption in kg/m3 and the moisture content of the unit as a percent of total absorption. Does the absorption meet the ASTM C90 requirement for absorption?
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