Abstract: A bound materials core measuring device includes a tubular body to accommodate a core sample of road or pathway surfacing bound material. The tubular body has a plurality of graduated scales extending therealong at spaced intervals therearound to enable the core sample to be measured from a plurality of angles by reading from each of the plurality of graduated scales. The tubular body has, located therein, a supporting element for supporting the core sample with the supporting element being mounted for longitudinal movement relative to the tubular body. The tubular body also includes therein a device for effecting the longitudinal movement.