The method according to the invention provides for in situ treatment of two types of waste, i.e. heterogeneous contaminated material and ash and/or poculants to a final composite-filler with a wide range of applications. This was not made possible by the hitherto known methods. The method comprises preparation of an adequate fraction of the heterogeneous contaminated material by sieving and crushing and mixing of individual components in a mixing device. The mixing is performed in two phases, first, the crushed heterogeneous contaminated material is given into the mixing device, this material functions as an aggregate in the composite, then ash and/or poculants are added until all grains of the aggregate are covered in ash and the dry mixture gets homogenized. To the homogenized dry mixture water is then added, in compliance with the requirement of the recipe. The wet reaction mixture is stirred until complete ash is in contact with water, wherewith the reaction is activated throughout the entire volume of the reaction mixture. In the process of composite formation, the ash and/or the poculants assume the role of a solidifier and stabilizer. Due to a high pH value of the mixture which reaches the values above 12.0, the salts of heavy metals get converted into a water insoluble form and are not leached out, thus the final composite is inert.

An inorganic fibrous shaped body including partially-crystallized bio-soluble inorganic fibers and an inorganic binder, wherein the bio-soluble inorganic fibers are SiO₂/MgO fibers or SiO₂/CaO fibers having the following composition: [SiO₂/MgO fibers] SiO₂ 66 to 82 wt% CaO 1 to 9 wt% MgO 10 to 30 wt% Al₂O₃ 3 wt% or less [SiO₂/CaO fibers] SiO₂ 66 to 82 wt% CaO 10 to 34 wt%

MgO 3 wt% or less Al₂O₃ 5 wt% or less.

The present invention belongs to the field of binder compositions for construction, more specifically it relates to the use of carboxymethylchitosan as flocculating additive and setting accelerator in binder compositions of the cement, cement mortar, concrete, grout, stucco and similar type. The invention also relates to binder compositions comprising carboxymethylchitosan, as well as to the method for their preparation.

Es wird eine holzfaserhaltige Lehmplatte beschrieben, die sich für die Beplankung von Ständerkonstruktionen sowie flächigen Untergründen im Innenbereich als Trägerplatte für Putze, Anstriche etc. eignet. Diese Lehmplatte zeichnet sich dadurch aus, das sie aus den folgenden Bestandteilen besteht

• (i) 60 bis 85 Masse-% an anorganischen, mineralischen Stoffen, wobei die anorganischen, mineralischen Stoffe aus mindestens 70 Masse-% Lehm und maximal 30 Masse-% mindestens eines Entwässerungshilfsstoffs bestehen,
• (ii) 10 bis 40 Masse-% mindestens eines Holzfaserstoffs,
• (iii) 0 bis 1 Masse-% mindestens eines Hydrophobierungsmittels,
• (iv) 0 bis 3 Masse-% mindestens eines organischen Bindemittels,
• (v) 0 bis 1 Masse-% weitere Prozesshilfsstoffe

High temperature resistant materials, one including between approximately 45 and 55 dry weight percent of high temperature resistant Silica fibers, and the other including between approximately 50 and 60 dry weight percent of magnesium silicate, that have improved physical properties, such as being capable of withstanding temperatures in excess of 2,000 °F, effective sealing, and being sufficiently resiliently compressible for cushioning a monolithic catalyst structure against breakage due to external physical shocks.

Gegenstand der Erfindung ist eine schnell trocknende Putz- und Beschichtungsmasse enthaltend ein Bindemittel in Form einer wäßrigen Polymerdispersion oder eines in Wasser redispergierbaren Polymerpulvers, sowie ein organisches Fällungsmittel, gegebenenfalls in Kombination mit einem anorganischen Fällungsmittel.