摘要:
The present invention relates to calcium silicate-based cements and concretes, which result in concrete compositions that have an increased durability. The present invention relates to a cement product comprising a plurality of particles of a carbonatable calcium silicate cement and a hydrophobic organic acid, or a salt thereof, or a silane, or a polysiloxane.
摘要:
A plurality of granules comprising particulate silicate material bonded together with an inorganic binder, the inorganic binder comprising reaction product of at least alkali silicate and hardener, wherein the hardener is at least one of aluminum phosphate, amorphous aluminosilicate, fluorosilicate, Portland cement, or a calcium silicate, wherein the particulate silicate material is present as at least 50 percent by weight of each granule, based on the total weight of the respective granule, wherein each granule has a total porosity in a range from greater than 0 to 50 percent by volume, based on the total volume of the respective granule, and wherein the granules have Tumble Toughness Value of at least 70 before immersion in water and at least 40 after immersion in water at 20°C±2°C for two months. The granules are useful, for example, as roofing granules.
摘要:
The present invention relates to a dry refractory particulate composition comprising a zeolithic microstructure, to a green body and to a refractory lining formed therefrom, and to uses thereof.
摘要:
Polyurethane composites and methods of preparing polyurethane composites are described herein. The polyurethane composite can comprise (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; (b) fly ash comprising 50% or greater by weight, fly ash particles having a particle size of from 0.2 micron to 100 microns; and (c) a coarse filler material comprising 80% or greater by weight, filler particles having a particle size of from greater than 250 microns to 10 mm. The coarse filler material can be present in the composite in an amount of from 1% to 40% by weight, based on the total weight of the composite. The weight ratio of the fly ash to the coarse filler material can be from 9:1 to 200:1.
摘要:
This invention provides flexible adhesive compositions which can be used instead of joint reinforcement tape for securing a joint seam between abutting panels. Methods using the compositions are provided as well.
摘要:
A composite product comprising a metakaolin-based mineral polymer. The composite product has a number of applications including use as a fire resistant material, use as a thermally insulating material and use as an impact resistance material. Methods of preparing a composite product according to the present invention and a kit of parts for preparing the composite product are also disclosed.
摘要:
Various embodiments disclosed related to a composition for treating a subterranean formation, and methods and systems including the same. In various embodiments, the present invention provides a method of treating a subterranean formation that can include obtaining or providing a sealant composition comprising an alkali-swellable latex and a viscosifying agent. The method also includes placing the composition in a subterranean formation downhole.
摘要:
The present invention describes a hardening accelerating admixture for hydraulic binders, the accelerator being based on transition metal silicate hydrates having the general formula: aMe x O y bMO cAl 2 O 3 SiO 2 dH 2 O 1) where - Me represents a transition metal whose molar coefficient a is in a range between 0.001 and 2, preferably between 0.01 and 1; - M represents an alkaline earth metal whose molar coefficient b is in a range between 0 and 2, preferably between 0.3 and 1.6; - The molar coefficient c for Al 2 O 3 is in a range between 0 and 2, preferably between 0.1 and 1; - H 2 O represents the hydration water of the silicate hydrate whose molar coefficient d can vary within a wide range between 0.5 and 20; x and y can both be equal to 1 or different, depending on the valence of the transition metal, given that the valence of the oxygen atom in the metal oxide is equal to 2.
摘要翻译:本发明描述了一种用于水硬性粘合剂的硬化加速混合物,该加速剂基于具有以下通式的过渡金属硅酸盐水合物:aMexOy bMO cAl 2 O 3 SiO 2·dH 2 O 1)其中-Me表示摩尔系数a在0.001 和2,优选在0.01和1之间; M表示碱土金属,其摩尔系数b在0和2之间,优选在0.3和1.6之间; - Al 2 O 3的摩尔系数c在0和2之间,优选在0.1和1之间; - H2O表示硅酸盐水合物的水化水,其摩尔系数d可以在0.5至20之间的宽范围内变化; 考虑到金属氧化物中的氧原子的价数等于2,x和y可以等于1或不同,这取决于过渡金属的化合价。