Abstract: Methods for the retrieval of aggregates from waste construction material by grinding in a ball mill or on a compressive grinder, which are useful in the recycling of waste construction material, especially in the recycling of concrete or mortar. Also, cleaned aggregates obtained from waste construction material by grinding and their use on the production of new construction materials.

Abstract: A polyisocyanurate plastic containing, in relation to the total plastic, a) a cured polymer including, in relation to the total polymer, at least 75 weight-% of polyether chains, 1 to 5.2 weight-% of urethane groups, and 0.7 to 7 weight-% of isocyanurate groups; b) at least 20 weight-% of at least one filler. The polyisocyanurate plastic shows pronounced rubber-like properties with a low modulus of elasticity, a low glass transition temperature and a surprisingly high dimensional stability with a high elastic recovery after compression, without the tendency to get brittle over time. It is easily available and is particularly suitable for uses such as shock absorber, sealant, adhesive or gap filler, particularly gap filler with a high thermal conductivity, suitable for the contact with electronic elements or devices, particularly batteries of electric vehicles.

Abstract: A hydrazide having a melting point of at least 65 °C is used as curing agent for thermal curing in a heat-curable polyurethane composition including a prepolymer having isocyanate end groups that is obtained from at least one polyisocyanate and at least one polyol, and also at least one epoxy resin. This combination affords heat-curing polyurethane compositions that have better storage stability and are curable with consistent mechanical properties over a wide temperature range.

Abstract: Accelerators for mineral binder compositions, the accelerator including an aqueous suspension of calcium hydroxide, and at least one material selected from alkanolamines, sodium thiocyanate, sodium nitrate, sodium nitrite, calcium nitrate, calcium silicate hydrate, sodium silicate, aluminium sulfate, sodium sulfate, sodium aluminate, alkali metal carbonates, especially lithium carbonate, alkali metal hydrogencarbonates, especially sodium hydrogencarbonate, organic acid, or mixtures thereof. The present invention also relates to methods to accelerate mineral binder compositions with such accelerators.

Abstract: A geopolymer composition may be capable of achieving both good fluidity over a long period of time and high strength development of a cured body in a short period of time by a simple technique while suppressing the mixing amount of silica fume. Such a geopolymer composition may contain an active filler, aggregate, an activator, a dispersant, and added water. The geopolymer composition may contain no silica fume or contain silica fume in an amount of less than 1 mass % based on a total mass of the geopolymer composition. A total moisture content of the geopolymer composition may be from 10 mass % to 13 mass %, the active filler contains coal ash and 35 mass % or more of ground granulated blast-furnace slag based on the total mass of the active filler. The dispersant may be a polycondensate-based dispersant that contains polyalkylene glycol monophenyl ether as a substructure.

Abstract: A reinforcing element for reinforcing a structural element of a motor vehicle includes a carrier and an expandable material arranged thereon. The carrier has a first side wall and a second side wall, and an intermediate member connecting the side walls. The reinforcing element is produced by an injection molding process, wherein the side walls are oriented substantially in a demolding direction of the injection molding process. The side walls each have on their outer sides a first region and a second region, wherein the first region is covered with expandable material and the second region is not covered with expandable material.

Abstract: A product, especially a master-batch for producing thermally expandable compositions, is obtainable or obtained by reacting, preferably by extruding, a mixture including: (a) at least one polymer P, cross-linkable by peroxide, and (b) at least one coagent, especially an acrylate A, and (c) at least one peroxide PE, wherein the mixture is reacted such that the product has an average melt flow index (MFI) of between 0.1 and 8 g/10 min.

Abstract: A structural reinforcing member for reinforcing a hollow structural member of a vehicle body includes a hollow body, whereby: the hollow body includes a cavity that is confined by a front wall, a back wall, a top wall, a bottom wall, and a side wall; the hollow body at a side of the side wall is partly or fully closed by the side wall and at a side opposite the side wall is open; and the hollow body includes ribs which run between opposing walls, wherein the cavity is divided into several subcavities, especially extending form the side wall to the open side opposite the side wall; at least on the side wall, an activatable material is arranged for adhesively bonding the reinforcing member to a hollow structural member.

Abstract: A method to produce a mineral binder additive comprises the steps of: a) providing a source material including uncured mineral binder material, carbonating the source material with carbon dioxide, especially under abrasive conditions, such that the mineral binder material is at least partially, in particular completely, carbonated to produce a carbonated granular product, especially a carbonated powder; b) retrieving the carbonated granular product of step a) as the mineral binder additive.

Abstract: A two-component composition, including between 3 and 15 wt.-% of at least one organic polymer containing reactive silane groups, between 70 and 92 wt.-% of at least one filler, between more than 0 to 2 wt.-% of drying agent, between more than 0 to 2 wt.-% of retarder, optionally at least one plasticizer, optionally additional organosilanes, optionally at least one catalyst for the curing of silane-functional polymers, wherein the drying agent is propyltrimethoxysilan and that the retarder is selected from the list consisting of phenylmethoxysilan, vinyltrimethoxysilan, octyltrimethoxysilan, propytrimethoxysilan, and any mixture of these retarders. The two-component composition can be formulated to show excellent thermal conductivity and is particularly suitable for battery and electronics assembly and at the same time offers long open time and fast curing behavior.

Abstract: A method of mixing at least one bitumen component and at least one solid particulate cellulose-containing filler for a mixing time of ?10 min at a mixing temperature of 100-180° C., wherein the weight ratio of solid particulate cellulose-contain filler to bitumen is between 6:1 and 1:1. The invention is also directed to use of the mixture in an acoustic damping material for damping of vibrations and noise in transportation vehicles and white goods, to a vibration and noise damping element comprising a damping layer composed of the acoustic damping material, to a method for applying a vibration and noise damping element to a noise emitting surface of a substrate, and to a vibration damped system comprising a substrate and the vibration and noise damping element bonded to a noise emitting surface of the substrate.

Abstract: A one-component thermosetting epoxy resin composition includes at least one epoxy resin A having on average more than one epoxide group per molecule, at least one latent hardener B for epoxy resins, at least one impact modifier D, at least one physical or chemical blowing agent E and fibrous anhydrous magnesium oxysulfate MOS. Thermally expandable epoxy resin compositions have improved adhesion, especially on metal substrates.

Abstract: An adhesive tape including: i) a metal film having a thickness of not more than 100 ?m, ii) a polymeric support layer having first and second major surfaces, iii) a pressure sensitive adhesive layer, and iv) optionally a release liner covering an outer major surface of the pressure sensitive adhesive layer facing away from the polymeric support layer, wherein the polymeric support layer is arranged between the metal film and the pressure sensitive adhesive layer.

Abstract: A method for producing a waterbar, the method including steps of providing first and second sealing elements each including a carrier layer having upper and lower major surfaces and a filled polymeric layer covering at least a portion of the upper major surface of the carrier layer and bonding the lower major surface of the carrier layer of the first sealing element to at least a portion of the lower major surface of the carrier layer of the second sealing element.

Abstract: Thermosetting epoxy resin compositions including an epoxy resin, a dihydrazide curing agent and a specific terminally blocked polyurethane prepolymer as a toughening agent. The compositions feature good mechanical properties and storage stability and a low curing temperature. The epoxy resin compositions are especially suitable for use as bodywork adhesive.

Abstract: A hydraulic composition useful as ultra-high performance concrete and ultra-high performance grouts and including: a) 100 mass parts of Portland Cement, b) 20-60, mass parts of at least one pozzolane, c) 30-120 mass parts, of at least one aggregate, having an average particle size D50 of between 63 ?m and 8 mm, d) 0.01-10 mass parts of a cement dispersant, and e) not more than 30 mass parts, of water.

Abstract: A method for producing a laminate, wherein a wooden element is provided, the wooden element is coated on the top side with a an adhesive that is applied in liquid form and includes at least one polymer that is liquid at room temperature and contains silane groups, at least one liquid epoxy resin and at least one amine hardener, the applied adhesive is covered with a layer of a liquid cementitious composition while still wet, and the liquid cementitious composition and the adhesive each cure. The method enables the durable joining of wooden elements and cementitious elements in an easy-to-implement, wet-on-wet method. The laminates obtained from the method are comparatively light, stable and robust and are especially suitable as sustainable components in above-ground construction.

Abstract: A composition includes a first component containing at least one polyaspartic acid ester (P1-1) and optionally a polyaspartic acid ester (P1-2) and a mixture of various polyetheraspartic acid esters (P2), and of a second component containing at least one aliphatic polyisocyanate (B1) and at least one isocyanate prepolymer (B2). The composition is particularly suitable as a cover coating composition. Said composition has a good adhesion on polyurea and polyurethane membranes, in particular roof membranes, and has drying times of less than 120 min, an elongation at break of 80-200% and a tensile strength of more than 6 N/mm2.

Abstract: A process for the reduction of the content of a compound I of general formula (II) where R1 is hydrogen or methyl, each R2, independently from each other, is hydrogen or methyl, R3 is hydrogen or an aliphatic or cycloaliphatic or aromatic hydrocarbon with 1-8 carbon atoms, AO is a C2-C12 oxyalkylene group, x=0 or 1, and n=2-350, from a mixture including or consisting of a compound I of general formula (II) and an alkoxylated alcohol A of general formula (I) where R1, R2, R3, AO, x, and n are as described in general formula (II) above, characterized in that the process includes a treatment of the mixture including or consisting of a compound I and an alkoxylated alcohol A with an acid. Also, the use of the alkoxylated alcohols A for the production of polycarboxylate ethers.

Abstract: Use of a comb polymer as an inerting agent for non-swelling layer-silicates, the comb polymer including: a) at least one poly(alkylene oxide) side chain-bearing monomer unit M1 without ionic groups, b) optionally at least one cationic monomer unit MC, wherein the molar ratio of the cationic monomer units MC to the side chain-bearing monomer units M1 is equal to or less than 0.1, preferably less than 0.05, c) optionally at least one anionic monomer unit MA, wherein the molar ratio of the anionic monomer units MA to the side chain-bearing monomer units M1 is less than 1, preferably equal to or less than 0.5, and c) optionally at least one non-ionic monomer unit M3, wherein the molar ratio of the non-ionic monomer units M3 to the side chain-bearing monomer units M1 is less than 7, preferably equal to or less than 3.