PROCESS FOR TREATING CHENEVOTTE PRODUCED FROM A MONOIC HAM FOR THE OBTAINING OF HARDENED AGGREGATES USED AS INSULATION OR AS A LOAD IN THE PREPARATION OF A CONCRETE, AND CONCRETE OBTAINED THEREBY

摘要

Process for the treatment of hemp obtained from a monoque hemp characterized in that, after calibration of the hemp obtained by mechanical defibration of the hemp, its impregnation is carried out with a calcium or barium salt in solution, preferably chloride of calcium, in that a first bleeding of the impregnated hemp is then carried out by incorporating in the previous solution powdered hard bodies, such as for example silica, lime or cement, excluding dairy cements or aluminous, in that the mixture obtained is then sprayed with a solution of sodium silicate, which provides a petrification of the heart of the hemp seed as well as a silicatization of its shell and of the hard powdered bodies, in that a second quantity of pulverized hard bodies, such as for example silica, lime or cement, excluding dairy or aluminous cements, is finally incorporated into the mixture containing the petrified hemp, which provides a silicate coating of the hemp seed, while causing the immediate bleeding of said mixture, the elements used by said process having, relative to each other, adequate proportions. /P P The product obtained by applying the process according to the invention constitutes a true raw material in the same way as sand, gravel and other components, concretes, mortars and plasters; it also constitutes a raw material which can be used directly, or used in the composition of thermal and acoustic insulators. /P P The invention also relates to concrete made from a filler incorporating at least part of the product obtained by application of the method according to the invention.