Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone Expanding or defibrillating materials

CCHEMISTRY METALLURGY C04Concrete, cement, ceramics C04BLIME, MAGNESIA SLAG CEMENTS COMPOSITIONS THEREOF

C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone Expanding or defibrillating materials

C04B20/0004Microcomposites or nanocomposites C04B20/0008Materials specified by a shape not covered by C04B20/0016 - C04B20/0056 C04B20/0012Irregular shaped fillers C04B20/0016Granular materials C04B20/002Hollow or porous granular materials C04B20/0024expanded in situ C04B20/0028crushable C04B20/0032characterised by the gas filling pores C04B20/0036Micro-sized or nano-sized C04B20/004inorganic C04B20/0044obtained from irregularly shaped particles C04B20/0048Fibrous materials C04B20/0052Mixtures of fibres of different physical characteristics C04B20/0056Hollow or porous fibres C04B20/006Microfibres; Nanofibres C04B20/0064Ground fibres C04B20/0068Composite fibres C04B20/0072Continuous fibres C04B20/0076characterised by the grain distribution C04B20/008Micro- or nanosized fillers C04B20/0084Conditioning C04B20/0088Fillers with mono- or narrow grain size distribution C04B20/0092Fillers with fine grain sizes only C04B20/0096Fillers with bimodal grain size distribution C04B20/02Treatment C04B20/023Chemical treatment C04B20/026Comminuting C04B20/04Heat treatment C04B20/06Expanding clay, perlite, vermiculite or like granular materials C04B20/061in rotary kilns C04B20/063by grate sintering C04B20/065in fluidised beds C04B20/066in shaft or vertical furnaces C04B20/068Selection of ingredients added before or during the thermal treatment C04B20/08Defibrilating asbestos C04B20/10Coating or impregnating C04B20/1003Non-compositional aspects of the coating or impregnation C04B20/1007Porous or lightweight coatings C04B20/1011Temporary coatings C04B20/1014Coating or impregnating materials characterised by the shape C04B20/1018with organic materials C04B20/1022Non-macromolecular compounds C04B20/1025Fats; Fatty oils; Ester type waxes; Higher fatty acids; Derivatives thereof C04B20/1029Macromolecular compounds C04B20/1033obtained by reactions only involving carbon-to-carbon unsaturated bonds C04B20/1037obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds C04B20/104Natural resins C04B20/1044Bituminous materials C04B20/1048Polysaccharides C04B20/1051Organo-metallic compounds; Organo-silicon compounds C04B20/1055with inorganic materials C04B20/1059Pigments or precursors thereof C04B20/1062Metals C04B20/1066Oxides, Hydroxides C04B20/107Acids or salts thereof C04B20/1074Silicates C04B20/1077Cements C04B20/1081Mineral polymers C04B20/1085Waterglass C04B20/1088Water C04B20/1092with pigments or dyes C04B20/1096organic C04B20/12Multiple coating or impregnating C04B20/123Multiple coatings, for one of the coatings of which at least one alternative is described C04B20/126Multiple coatings, comprising a coating layer of the same material as a previous coating layer