When normal ready-mix concrete is made the largest aggregates in the mix can range from 1-1/2 inches down to 3/8ths of an inch in size with compressive strengths that can be as high as 10,000 psi.

The clear low-viscosity (750-cps) IMSEAL-800 epoxy has a Rockwell hardness of 97, a tensile strength of 9,000 psi, a compressive strength of 35,000 psi, and a compressive yield of 16,500 psi.

Concrete suppliers and contractors are sometimes accused of producing or placing low-strength concrete. While low-strength concrete does occasionally occur, many times reported cylinder strengths are ...