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When specifying concrete mix designs the exposure can be selected. Based on the exposure the minimum strength and maximum water-cement ratio is determined. The minimum strengths and maximum water-cement ratios can be specifying by selecting Tools > GDMS > Concrete > Minimum Strengths. The Minimum Strengths form will be displayed.
Minimum strengths and maximum water-cement ratios can be specified for the different types of exposure. The strength units can be specified in either MPa or psi.