3 1/2" Grout Retainers, set of 2

Grout sample unbonded capping system for compression testing of grout specimens. Steel retaining cups are machined plane +/- .002 and plated to prevent rust. Used in conjunction with grout sample box, the unbonded capping system provides tremendous labor savings, along with consistency and accuracy.

Compression pads are AASHTO grade, available in 50, 60 or 70 durometer.