Our aim in this study is to illuminate the dependence of planimetric crater shape on the properties of geological targets, as well as modification state. We have measured the rim trace of 110 comparatively fresh impact craters in HiRISE images (i.e., craters with preserved ejecta), as well as 840 fresh craters in MOC images. From the planimetric shape (i.e., the rim trace) we compute a suite of...

The aim of this research was to study the effect of various water-to-cement ratio on the properties of pervious concrete. Tests were carried out to find the optimum water-to-cement ratio that gives a high compressive strength with acceptable permeability. The tests of fresh density, compressive strength at 7days, porosity and water permeability for four mixes of pervious concrete with various w...