The present invention relates to geopolymer compositions comprising additives selected from sugars and derivatives thereof and/or organic acids and salts thereof. The geopolymer compositions of the present invention have sufficient strength to be used for construction purposes. To facilitate the production method of geopolymer paste and concrete compositions the present invention further provides solid and liquid geopolymer activator compositions.

The present invention relates to recycled asphalt concrete and a manufacturing method therefor and, more specifically, to recycled and regenerated asphalt concrete and a manufacturing method therefor, which minimizes the amount of flat and elongated particles included in aggregates used as materials for asphalt concrete, thereby increasing the quality of the asphalt concrete to first grade (the amount of the flat and elongated particles is less than 10%) and increasing the durability of the asphalt concrete.

The present invention relates to recycled asphalt concrete and a manufacturing method therefor and, more specifically, to recycled and regenerated asphalt concrete and a manufacturing method therefor, which minimizes the amount of flat and elongated particles included in aggregates used as materials for asphalt concrete, thereby increasing the quality of the asphalt concrete to first grade (the amount of the flat and elongated particles is less than 10%) and increasing the durability of the asphalt concrete.

Process for reducing hexavalent chromium in oxidic solids, which comprises the steps: a) mixing of the oxidic solid containing Cr(VI) with a carbon-containing compound which is liquid in the range from 20 to 100° C., b) treatment of the mixture obtained after a) in an indirectly heated reactor at a temperature of from 700° C. to 1100° C., particularly preferably at a temperature of from 800° C. to 1000° C., under a protective atmosphere, c) cooling of the reaction product obtained after b) to at least 300° C., preferably at least 150° C., under a protective atmosphere.

A fuel made from co-products derived from a lignocellulosic biomass fermentation process is used to fuel a cement production process. Filter cake and syrup co-products are mixed and dried, then burned in a cement kiln to create the temperatures needed for cement production.

A fuel made from co-products derived from a lignocellulosic biomass fermentation process is used to fuel a cement production process. Filter cake and syrup co-products are mixed and dried, then burned in a cement kiln to create the temperatures needed for cement production.

A method of manufacturing a catalytic sieve includes providing starting materials of an aggregate, a cementing agent, a sublimation agent and water. The sublimation agent (between 25% and 50% by weight of the cementing agent) is selected from molybdenum disulfide, tungsten disulfide, vanadium disulfide, copper sulfate, and combinations thereof. The aggregate contains at least 2% by weight of at least one transition metal. The method includes mixing the starting materials to achieve a mixture, placing the mixture into a form, and curing the mixture in the form to allow the mixture to become a solidified unit defined by a minimum dimension of thickness, length, width or diameter. The method further includes placing the solidified unit into a kiln, heating the kiln to 1115°−1350° C., maintaining the kiln at the temperature for between 10-60 minutes per centimeter of the minimum dimension, and removing the solidified unit from the kiln.

A backing layer (10) of a multilayer thermal insulation panel (100) for building constructions includes a glass fiber reinforcement layer (1) having a first surface (F1) and an opposite second surface (F2). The reinforcement layer is interposed between a first coating layer (2) attached to the first surface (F1) of the reinforcement layer and a second coating layer (3) attached to the second surface (F2) of the reinforcement layer (1). The first (2) and second (3) coating layers are manufactured by a mixture including an organic binder.

Disclosed is a two-part composition for sealing natural stone or masonry, and methods of use. The two-part composition is comprised of (1) a first part comprising a polyvinylidene fluoride (PVDF) particulate; a low evaporation rate organic solvent; and water; and (2) a second part comprising a blend of a plurality of liquid resin formulations.

Disclosed is a two-part composition for sealing natural stone or masonry, and methods of use. The two-part composition is comprised of (1) a first part comprising a polyvinylidene fluoride (PVDF) particulate; a low evaporation rate organic solvent; and water; and (2) a second part comprising a blend of a plurality of liquid resin formulations.