Procedure to build, open to heaven, patients permeable to water on surfaces relatively extensive in horizontal plan (Machine-translation by Google Translate, not legally binding)

摘要

Procedure for building open skies water-permeable materials on relatively large surfaces in a horizontal plane characterized by the fact that on a well-consolidated concrete ground or similar material a relatively thick layer of hard and imputrescible material is spread to a particle size between 20 and 5 mm. They are bonded together with a binder in such a quantity that it does not suppose an excessive incorporation of pulverulent particles, this binder being selected in such a way that it combines characteristics of resistance to water and temperature variations, however extreme it may be, even improving them by said action of the water and not suffering any disintegration even with temperatures exceeding 75ºc and once well set this layer is superimposed on another similarly formed but whose thickness is half of that of the anteriorapproximately and whose fragments also of a hard and imputrescibleman material have their dimensions between 5 and 2 mm, so that the surface thus obtained is endowed with mechanical strength according to its application ulterioraparte the indispensable resistance at least equal to that of the previous layer the action of water and calorsiendo recommended to color this second layer by coloring means that do not impair the said resistant characteristics. (Machine-translation by Google Translate, not legally binding)