Search results for query: *

Is there a a maximum concrete coverage for a #4 reinforcing steel stirrup in an 8-10 inch wide stem wall?

In E-329 12.2.11 it calls for a "signature" or "an equivalent" on the test report. What would be an equivalent to a signature?

I have a low 56-day grout break. What investigative services can be done other than windsor probe (which is not exactly deependable)?

I have two questions: 1) I have read somewhere either ACI or a spec book that a CMU wall should not be grouted on the same day as the block was placed. Does anyone know if there is a spec for this? 2) What would turn CMU block or brick veneer the color black (new construction)?

I have recently gone through the CCRL inspection. The correction factor for air content in the aggregate and sand is a hit we took. I have called several local suppliers/associations and have had no real feed back. Other than going to the how ever many quarries (whether barged or excavated) to...