Abstract: A method is described for the modification of asphaltic compositions such that cellulosic fibers are not degraded by the asphalt at elevated temperatures. This is achieved by the addition of addition of certain inorganic or organic alkaline materials to the composition. As a further embodiment of the invention, a method is also described for the dispersion of cellulosic fibers in liquid asphalt in such a way as to obtain a thermally stable product with defined viscoelastic properties. This comprises blending the fibers with asphalt, fibers and alkaline additives under controlled mixing conditions such that the required viscometric specification is attained.

Abstract: The concentration d3 is alumina AL2O3, —A—, and the concentration d4 in lime CaO, —C—, in the initial mixture are such that d3/d4 ranges between 1.15 and 1.40. Grinding produces a cement with a size distribution as represented in a Rosin Rammler diagram has a gradient ranging between 0.75 and 0.90.

Abstract: The present invention relates to a building having a roof with structured roof tiles and a structure projecting out from the roof surface, such as a chimney, a window, a wall, or ventilating pipe and to a method of constructing a roof of a building covered with structured roofing tiles and a structure projecting out from the roof surface, such as a chimney, a window, a wall, or ventilating pipe and also the gap between a ridge, an arris or hip covering.

Abstract: The invention concerns a concrete obtained by mixing with water, cement, granular elements, elements with puzzolanic reaction, constituents capable of improving the toughness of the matrix, metal fibers and at least a dispersing agent, in specified conditions and proportions. Said concrete has improved properties compared to prior art concrete comprising metal fibers.

Abstract: The invention concerns an aqueous bitumen emulsion, consisting of the following constituents expressed in weight percentages of the emulsion total weight: 50% to 70% of bitumen; 0.5% to 10% of surfactant; 0% to 5% of thickening agent; 0% to 1% of antifoaming agent; a sufficient quantity of water to make up 100%. Said emulsion is characterised in that the surfactant consists of at least a surfactant selected among the group consisting of an ethylene oxide and a propylene oxide copolymer, with PO/EO ratio ranging between 1.5 and 10, an ethoxylated and/or propoxylated epoxidized surfactant, and a polyvinyl alcohol having molecular mass ranging between 10000 and 150000. The invention also concerns the method for obtaining said emulsions, the compositions containing them, and the use of said bitumen emulsions for the formulation of compositions comprising a hydraulic or organic binder, and/or a mineral or organic filler.

Abstract: A binder for mine tailings and aggregate used as a backfill for an underground void comprises ferrous slag, and cement kiln dust, optionally with lime kiln dust; the binder displays strength characteristics better than or comparable to those achieved with conventional binders based on Portland cement and slag.

Abstract: The yield of cement clinker recovered from a kiln assembly is enhanced by feeding a particulate material comprising silica and an oxide of at least one of calcium and aluminum, for example, fly ash into contact with hot cement clinker; the fly ash melts to a partially fused material which chemically reacts with the hot clinker to produce a pyroprocessed cement clinker of crystalline hydraulic silicates; the extruder is added to the hot cement clinker downstream of the formation of the cement clinker, and suitably is added to the hot cement clinker at the upstream end of the cooler of the kiln assembly, or within the kiln, downstream of the burning zone, and more especially in the initial cooling zone at the discharge end of the kiln.

Abstract: The present invention relates to a self-leveling composition for floor toppings, characterized in that it is based on Portland cement or on cement mix CM II or CM III, and in that it further comprises at least sand, water and at least one plasticizer which is a water-soluble or water-dispersible organic compound (I) containing at least one aminodi(alkylenephosphonic) group and at least one polyoxyalkyl chain, or at least one salt of compound (I).

Abstract: A covering material which can be plastically deformed by band and extended in at least one direction. The covering material has a substrate with openings, at least the top side of which substrate has a top coating which covers the openings. To create an economical covering material for covering the gap between a planar surface and a structured surface, in particular a highly structured roof surface, the covering material can be extended in at least one direction more than 30%, can be bent perpendicular to the direction of extension, and the entire surface of which covering material can be permanently and plastically deformed in three dimensions. The top coating is of a thin flat stock and that the coated substrate is, at least in the direction opposite the direction of extension, compressed, crepe-like, by at least 25% of its original length so that the surface of the covering material exhibits irregular little corrugations.

Abstract: A method for producing a floor by casting a concrete slab with a concrete composition having a water/cement ratio of 0.4-0.7 and a minimum compressive strength no lower than 10 MPa, and depositing a first covering layer on the freshly cast concrete slab as soon as the slab is capable of bearing the weight of a man walking thereon without being damaged, or once the compressive strength of the slab concrete has reached a value of 0.15-0.4 kg/cm2. Said covering layer is based on a self-levelling composition. The method is useful for producing all kinds of floors for indoor, outdoor, industrial or commercial use.

Abstract: A sub-roofing element for a flat, plate-shaped structural element, in particular for a solar energy collection module that can be fastened to joist elements that can be laid on a pitched roof in the ridge-eaves direction, whereby the sub-roofing element is made of watertight material and has at least one water channel.

Abstract: A dust collection system includes a frame defining an opening through which a particulate material is inserted; a plurality of hollow supports extending across the opening; at least one plate extending along a length of each of the plurality of hollow supports, each of said plates extending from its respective one of the plurality of hollow supports in a downward direction; a plurality of openings extending along a lower side of each of the plurality of hollow supports; and a device for drawing dust in through the plurality of openings.

Abstract: A construction assembly for interior works, comprising:(1) plaster boards, each of which plaster boards comprises a plaster body and at least one sheet of lining paper, wherein the lining paper comprises(a) an upper layer or web comprising white cellulose fibers and a mineral filler of light color, and(b) a pigment layer covering said upper layer or web, wherein the pigment layer comprises a mineral filler of light color and a binder,wherein said plaster boards are assembled creating at least one joint; and(2) a joint-pointing coat jointing said plaster boards to form a substantially plane outer surface comprising the visible surface of said at least one joint and the visible surface of said pigment layer, wherein the composition of which joint-pointing coat is adapted for the finishing of said at least one joint, wherein said joint-pointing coat comprises a mineral filler of white color;wherein the composition of said joint-pointing coat is similar to the composition of said upper layer or web and/or said pi

Abstract: An ultra-high performance composite concrete, with low cement and fiber content and having good mechanical properties as well as good impacts, shocks and projectile protection properties, includes hydraulic binder, aggregates, an admixture of metal fibers. Particularly, the composite concrete includes 70% to 85% of particles (A) having a particle size distribution which ranges from 0.01 to 3 mm up to particle size distribution which ranges from 0.01 to 0.50 mm; 2% to 10% of particles (B) having particle size of between 0.01 and 1 .mu.m; 3% to 20% of hydraulic binder; 0.1 to 3% of a dispersant or plasticizer; 0.05% to 8.5% of fibers; and, mixing water, wherein the percentages being weight percentages based on the sum of the weights of constituents a) to d).

Abstract: Undried blast furnace slag, for example, granulated blast furnace slag having a water content of 3 to 20, generally 5 to 15%, by weight, is introduced to hot clinker in a cooler downstream of a cement kiln; the water is volatilized or evaporated in the cooler to provide a cement clinker having an effective content of dried blast furnace slag free of water; this permits use of blast furnace slag in a blended cement without the need for separate special steps for drying the slag.

Abstract: The invention provides a ladle for the preparation of metal comprising a metal case (1) provided, on its inner surface, with a refractory wall lining (3) and a refractory bottom lining (4) with a taphole (5), characterized in that the surface of the refractory bottom lining (4) in contact with the metal in preparation is a concave surface having at every point a slope in the direction toward the taphole (5).The invention also provides a method for producing such a refractory bottom lining.

Abstract: Metallurgical slag is expanded to produce a lightweight solid by forming a stream of molten liquid slag of controlled rate of flow and mixing the stream of slag with a controlled quantity of water and flowing the interacting mixture of slag and water into a receptacle. The interaction between slag and water is allowed to proceed for a predetermined period of time to form an expanded solid without the addition of any additional cooling water which would otherwise quench the material and vitrify it. In the receptacle, a vaned rotor operates to segment the interacting mixture of slag and water and project the segmented mixture through the air for collection into a heap.

Abstract: A combination of a class C fly ash having a high analytical content of CaO, and a silica fume, with a hydraulic cement, such as Portland cement, produces concrete with alkali-silica reactive aggregate having acceptable low expansion such as by ASTM C 1260; and also produces sulphate resistance with mineral aggregates generally.

Abstract: The invention concerns paint compositions for providing road markings, in particular on wet roadways. The paint compositions essentially comprise: at least one unsaturated polyester; at least one ethylenically unsaturated monomer; at least one polymerization accelerator selected from toluidine derivatives; at least one colored pigment; at least one compound which can exude at the surface of the paint and prevent oxygen in the air from inhibiting polymerization; glass beads and dibenzoyl peroxide.