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Cliff is here to help you with your construction conundrums, your precast problems and your building brain-teasers. Click on the questions below to read more or submit your own question.

Question Archive

In this article on "Horseshoe Shims", are the shims plastic or steel? If plastic, can we use as a bedding material and assume 0.6 x fcu for bearing of steel beams and base plates?

Is it in a Code that you should not take friction into account? I am tempted to use friction to resist wind or NHL forces in Crosswall construction.

I have an enquiry regarding the friction coefficient of concrete on steel. Does Key2Concrete have anything on this?

How do you measure camber on a prestressed concrete floor?

What is the difference between Rd and Metric thread?

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