摘要:
The invention relates to a method for the production of cold-process bituminous coatings, in particular surface dressings, comprising the steps of: producing a bituminous binder in the form of a cationic bitumen emulsion, producing an aggregate containing at least a first lime-coated aggregate fraction, and forming said cold-process bituminous coating with at least one layer of the aggregate incorporated into the bituminous binder. The invention also relates to a cold-process bituminous coating composition comprising such lime-coated aggregates and to the use of lime in order to coat aggregates during the production of the bituminous coating.
摘要:
A hydraulic binder includes a Portland clinker having a Blaine specific surface of 4000 to 5500 cm2/g, from 2.5 to 8% of sulphate expressed by mass of SO3 relative to the mass of clinker, from 1.5 to 10% of calcium nitrite and/or calcium nitrate expressed as anhydrous mass relative to the mass of clinker and from 15 to 50% of a mineral addition including calcium carbonate by mass relative to the total mass of binder.
摘要:
Provided is a rapid hardening cement in which a long setting and hardening time is secured in a low-temperature environment. The rapid hardening cement comprises: (A) a surface-premodified cement with a polycarboxylic acid-based water-reducing agent as a modifier; (B) a rapid hardening agent comprising calcium aluminate and gypsum; and (C) a setting modifier.
摘要:
Provided is a rapid hardening cement in which a long setting and hardening time is secured in a low-temperature environment. The rapid hardening cement comprises: (A) a surface-premodified cement with a polycarboxylic acid-based water-reducing agent as a modifier; (B) a rapid hardening agent comprising calcium aluminate and gypsum; and (C) a setting modifier.
摘要:
Beschrieben wird ein Wintermörtel in Form eines trockenen Mörtelauftrages insbesondere in Form eines Mörtelbandes, Mörtelplatte oder lose Mörtelaggregate, dadurch gekennzeichnet dass durch die Aktivierung mit Wasser eine Wärmemenge von mindestens 50 kJ/kg Mörtel, bevorzugt mindestens 100 kJ/kg , besonders bevorzugt mindestens 150 kJ/kg freigesetzt wird.
摘要:
The present invention relates to an admixture for a cementitious composition and a method using said admixture for manufacturing a durable cementitious composition, in particular a concrete, in cold weather conditions, such as in winter time or in cold geographical areas.
摘要:
Zusammensetzung zur Abdichtung von Bauwerken oder dergleichen gegen Witterungseinflüsse, insbesondere gegen das Eindringen von Wasser, gekennzeichnet durch die folgenden Bestandteile:
a) ein sich durch Aufnahme oder Abgabe von Wasser verfestigendes Material; und b) ein NCO-funktionelles, hydrophiles Polyether-Polyurethan-Präpolymer.