The test for flexural strength is the most important way of assessing the quality of GRC. Power-Sprays supply a range of flexural testing equipment. A Typical Specification would be: Bench mounted twin column computer controlled universal strength testing machine. Maximum capacity 5kN. High accuracy grade 0.5 load cell. Range 5000N tension and compression. A full machine control Windows based Universal test program. Adjustable span 4-point bend fixture to GRCA specifications.