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Is there an accurate instrument for locating reinforcing steel in concrete?
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In patching small surface defects in concrete, is there a precise way to assure that the color will match?
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What is the meaning of less-than-zero slump?
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We have been having considerable trouble with efflorescence; straight scrubbing down with water does not seem to be of any great help. Can you suggest some form of acid wash?
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How does the maintenance cost per mile for portland cement concrete pavement compare with other types?