Abstract: The surface deactivating composition for concrete or mortar comprising a retardant, water and if desired a rheology modifying agent of the HASE type (emulsion, soluble in alkali, of a polymer with hydrophobic modification), characterized in that the retardant is a carboxylic acid and in that the concentration of HASE is greater than or equal to 0.5% by weight.

Abstract: A cement composition for liquid casting, based on a binder comprising Portland cement and additives comprising at least a fluidizer and a combination of a thickening agent acting by steric exclusion and a gelling thickening agent. The composition can also include a surface active agent to regulate the quantity of entrained air. Mixed with water and an aggregate, it permits obtaining, in a single casting, a self-leveling casting of a high thickness (equal to at least 6 cm) and of low density (about 1.6 to 1.9).

Abstract: A cell package is made of a laminate which can be heat sealed even when the cell package is contaminated with electrolyte. The laminate includes a polyester outer layer, an aluminum barrier layer and a polypropylene inner layer which are adhered together by an adhesive which does not break down in the presence of electrolyte.

Abstract: A method of manufacturing an electrochemical battery where the electrolyte is introduced into the cell stack with minimal or no loss of electrolyte. The method of fabricating the battery, comprises the steps of separately forming an electrode cell stack and a sealed electrolyte pouch, placing the cell stack and the electrolyte pouch together into a cell package, applying a vacuum to the cell package, sealing the cell package, and rupturing the pouch to release the electrolyte into the cell stack. The pouch is ruptured by squeezing the pouch until the electrolyte squirts out of the pouch. Also, the cell package is sealed by heat sealing. With this fabrication technique there is little or no electrolyte loss. In particular, since the electrolyte is injected into the electrode cell stack after the package has been sealed, substantially all of the electrolyte is suctioned into the electrode cell stack without any of the electrolyte escaping from the package.

Abstract: Use is made, as thinner or fluxing oil in an anhydrous or emulsified bituous binder, of methyl esters of fatty acids which are obtained in particular by transesterification of vegetable oils. The hardening of the binder after spreading is obtained no longer by evaporation but by crosslinking of the thinner in the presence of atmospheric oxygen and of a catalyst.

Abstract: A process and apparatus for controlling the manufacture of mineral fibers, in particular glass fibers, by use of a fiber-drawing process using internal centrifuging in a centrifuger. The peripheral strip is pierced by a large number of outlet orifices and the radiation emitted superficially by the peripheral strip is measured in order to determine the temperature of points of the peripheral strip and the vertical coordinate of each of the points measured.