2.2.2. Basic Material Properties

The bulk density and matrix density of each mixture in the hardened state were determined. Bulk density was determined on dried samples by measuring them with a digital caliper and then weighing them. The matrix density was determined using a helium pycnometer (Pycnomatic ATC, Thermo Scientific, Waltham, MA, USA). The open porosity of the samples was calculated from these values.
