Abstract:
An ultra-light, pourable, self-drying cementitious product with improved density control and ultra-low water demand is provided. Compositions and methods for making the products are provided as well, including compositions and methods with ultra-low water demand.
Abstract:
La presente invención se refiere a la composición de un hormigón autocompactable de alta resistencia a la compresión. Este hormigón alcanza resistencias a la compresión superiores a 100 MPa a 28 días manteniendo su propiedad autocompactable. Además la presente invención se refiere al procedimiento de obtención del hormigón autocompactable de alta resistencia y al uso del mismo como hormigón estructural de estructuras tales como estructuras pretensadas y postensadas, puentes, túneles, cimentaciones, edificaciones, reactores nucleares, acumuladores, depósitos y tanques de almacenamiento.
Abstract:
A composite material includes a cementitious composition and a plurality of fibers disposed in the cementitious composition. Each of the plurality of fibers includes a plastic component. Each of the plurality of fibers further includes a surfactant and a metal oxide, each independently heterogeneously dispersed throughout each of the plurality of fibers. A method of forming the composite material includes the step of combining the plastic component, the surfactant, and the metal oxide, to form the plurality of fibers. The method further includes the step of disposing the plurality of fibers in the cementitious composition to form the composite material.
Abstract:
본 발명은 도료 조성물에 복합 에어로겔이 포함되어 이루어지는 복합 에어로겔이 포함된 도료 조성물 및 그 제조방법에 관한 것이다. 상기 복합 에어로겔은, 에어로겔로 형성가능한 모재에 카본을 포함하는 적외선 차단 물질이 균일하게 일체 결합된 구조로 형성되도록 함으로써, 상기 일체 결합된 에어로겔 모재와 적외선 차단물질의 상호작용에 의한 시너지 효과로 인하여 종래의 도료에 비하여 더욱 향상된 단열성능을 제공할 수 있는 기술적 효과가 있다. 또한, 상기 모재와 적외선 차단물질은 졸-겔 공정을 통하여 일체로 형성되도록 함으로써, 기능성 물질의 추가적인 결합이 간편하면서도 그 결합이 균일하고 견고하여, 우수한 단열성능은 물론이고 다양한 기능성을 용이하게 제공할 수 있는 기술적 효과가 있다.
Abstract:
A composite material includes a cementitious composition and a plurality of fibers disposed in the cementitious composition. Each of the plurality of fibers includes a plastic component. Each of the plurality of fibers further includes a surfactant heterogeneously dispersed throughout each of the plurality fibers. The surfactant includes an alcohol alkoxylate, an alcohol block/heteric alkoxylate, a polyoxyethylene/polyoxypropylene block/heteric copolymer, a fatty alcohol, a fattyalkoxy alcohol, a polyalkylene glycol, a alkylphenol alkoxylate, or combinations thereof. A method of forming the composite material includes the step of combining the plastic component and the surfactant to form the plurality of fibers. The method further includes the step of disposing the plurality of fibers in the cementitious composition to form the composite material.
Abstract:
A lost circulation material and method for well treatment employing the material that is effective at sealing or plugging fractured zones and has utility over a wide range of temperatures, including high temperatures. The lost circulation material includes particulate material to quickly de-fluidize the fluid formulation, fibrous material to suspend particles in the slurrified form of the composition and increase the shear strength of the resultant seal, and non-Portland cement material for increasing the compressive strength.
Abstract:
A Thermally Adaptive Ductile Concrete (PCM-ECC) having a tensile ductility ceramic with 5 times the thermal resistance, 2 times the specific heat capacity, and 400 times the tensile strain capacity of regular concrete.
Abstract:
The present invention relates to improved concrete elements, particularly to high-performance self-compacting concrete (HP-SCC); to cementitious compositions suitable for producing such concrete elements; to methods of manufacturing such concrete elements and such cementitious compositions; to the use of specific additives in concrete elements and cementitious mixtures. The inventive compositions comprise an effective amount of polymer fibres and of hydrogels. The inventive concrete elements show improved fire resistance, particularly towards explosive spalling.
Abstract:
A gunnable refractory composition, a method of installing a factory lining by gunning the gunnable refractory composition, a refractory lining obtained by the installation method, and a precursor refractory composition formable into the gunnable refractory composition upon mixing with an appropriate amount of water.
Abstract:
A fire insulation precursor material comprising: (i) cement, in an amount of between 10-30% w/w;and (ii) analuminium or magnesium hydroxide, huntite or hydromagnesite in an amount of between 60 -90% w/w.