摘要:
A method of expanding expandable polymeric microspheres including contacting an aqueous slurry including unexpanded, expandable polymeric microspheres with heat in-situ during manufacture of cement. A method of manufacturing cement includes: (i) contacting an aqueous slurry of unexpanded, expandable polymeric microspheres with heat proximate to and/or during said manufacturing of cement to create expanded polymeric microspheres; (ii) optionally pre-wetting the expanded polymeric microspheres; and (iii) mixing the expanded polymeric microspheres with cement.
摘要:
A freeze-thaw damage resistance and scaling damage resistance admixture for a cementitious composition including an aqueous slurry comprising a water insoluble superabsorbent polymer and expandable polymeric microspheres. A method for preparing a freeze-thaw damage resistant and scaling damage resistant cementitious composition including forming a mixture of a hydraulic cement and an admixture including an aqueous slurry of a water insoluble superabsorbent polymer and expanded polymeric microspheres.
摘要:
The invention relates to the use of polymeric microparticles with apolar shells in hydraulically setting building material mixtures, for improving their freeze resistance and/or freeze-thaw resistance.
摘要:
Die vorliegende Erfindung betrifft die Verwendung von polymeren Mikropartikeln mit unpolaren Schalen in hydraulisch abbindenden Baustoffgemischen zur Verbesserung deren Frost- bzw. Frost-Tauwechsel-Beständigkeit.
摘要:
Gegenstand der Erfindung ist eine Baustoffzusammensetzung, welche sich insbesondere zur Verwendung als bitumenfreie Abdichtungsmasse für die Bauwerksabdichtung eignet und eine Polymerdispersion oder ein entsprechendes Redispersionspulver, insbesondere auf Basis vorzugsweise wäßrig redispergierbarer Emulsionspolymere, zusammen mit Polystyrolpartikeln, keramischen und synthetischen Mikrohohlkugeln sowie gegebenenfalls mindestens einem Bindemittel und gegebenenfalls weiteren Additiven enthält. Die erfindungsgemäße Abdichtungsmasse kann grundsätzlich als 1K- oder 2K-Anwendungssystem formuliert werden. Die erfindungsgemäße bitumenfreie Baustoffzusammensetzung zeigt neben ausgezeichneten Abdichtungseigenschaften, wie sie herkömmlicherweise nur mit bitumenhaltigen Abdichtungsmassen erreicht werden können, insbesondere ein ausgezeichnetes Schrumpfverhalten nach dem Auftrag.
摘要:
The composition for artificial marble according to the present invention comprises (a) 100 parts by weight of an acrylic resin syrup; (b) 0.001 to 50 parts by weight of a pulverized sponge; (c) 100 to 300 parts by weight of an inorganic filler; and (d) 0.1 to 10 parts by weight of a polymerization initiator. The artificial marble of the present invention presents a natural material feeling.
摘要:
A composition that sets to produce a concrete includes Portland cement; a polymerizable material having bubbles dispersed in the polymerizable material; an aggregate; and water in a sufficient amount such that the composition sets to a concrete. A method for making a concrete article uses a paste that includes Portland cement and a polymerizable material having bubbles dispersed in the polymerizable material. The paste is added to an aggregate to create a settable composition, and the settable composition is allowed to set to a concrete article.
摘要:
A cementing composition which is capable of self-sealing cracks in the cement composition is provided. For example, the composition includes a polymer that is swellable in the presence of gaseous hydrocarbons, hydrogen sulfide, carbon dioxide, carbonic acid and/or hydrochloric acid. A method for using the cementing composition in cementing operations for wellbore through a subterranean formation is also provided.
摘要:
A variety of methods and compositions are disclosed herein, including, in one embodiment, a method comprising: introducing a settable composition into a subterranean formation, wherein the settable composition comprises: a cementitious component comprising a hydraulic cement and cement kiln dust; a swellable particle; and water; and allowing the settable composition to set in the subterranean formation. Another embodiment comprises a settable composition comprising: a cementitious component comprising a hydraulic cement and cement kiln dust; a swellable particle; and water.