Testing the effects of supplementary cementitious materials (SCMs) or new mix designs on pore refinement. 2. Required Apparatus
Samples are immersed in water for at least 48 hours.
Reviews often refer to this as the "boil test" because it uses boiling water to drive air out of the concrete's pores. It is highly valued for its ability to rank concrete durability by measuring the volume of permeable voids (VPV).
[ \textVoids, % = \fracD - AD - E \times 100 ]
Standard Test Method for Density, Absorption, and Voids in Hardened Concrete Standard Designation: ASTM C642 Date: October 26, 2023