Nonshrink Grout vs Type I Grout
Nonshrink Grout vs Type I Grout
(OP)
My contractor has decided to use Type I Cement Grout underneath the baseplates of our 5 story building rather than use non-shrink grout spec'd in our drawings conforming to ASTM C1107.
We are at a point where we need to find some evidence that his grout is unacceptable. What makes it more complicated is that we are on the same team. So, does anyone know of a reference that shows that non-shrink grout is the only acceptable type or that masonry grout is not acceptable?
Again, I am not looking for anything but references. I fully understand what non-shrink grout is intended for and how it acts, but i'm not finding many references in the literature.






RE: Nonshrink Grout vs Type I Grout
RE: Nonshrink Grout vs Type I Grout
Does your project have any specifications? You will be hard pressed to find a "Type I grout" that meets any specifications for grouting under bearing plates unless it is a casual use. To be a nit-picker, the only question should be whether the grout be metallic or non-metallic.
Masonry grout using Type I cement is a totally different material that could not be used in this application.
Dick
RE: Nonshrink Grout vs Type I Grout
RE: Nonshrink Grout vs Type I Grout
RE: Nonshrink Grout vs Type I Grout
RE: Nonshrink Grout vs Type I Grout
RE: Nonshrink Grout vs Type I Grout
If the steel fabricator uses leveling nuts and the grout shrinks the anchor bolts will transferring the axial load instead of bearing through the grout. If the fabricator uses leveling plates and the grout shrinks the anchor bolts will probably not be properly tightened anymore. The latter case would depend how soon the columns are erected after the grout/leveling plates are set.
RE: Nonshrink Grout vs Type I Grout
You're right.