DESCRIZIONE
[0001] Use of mortar of cement and sand for structuring the of water contacted inner area of biologically up-readyable waters, in particular floating oak, natural pools or fish tank. [0002] As cement is a calcium aluminate cement/sand and dolomite as sand and pure quartz sand or used, at most 2% by weight wherein the calcium aluminate cement at each sulfates, phosphates and silicates containing 5 weight % to 30 weight and its content in the dry mortar % is