摘要:
The present invention relates to the use of a solid comprising at least one organosilane and a carrier material to hydrophobise mortars, wherein the organosilane has the formula R1Si(OR′)3 or R1R2Si(OR′)2 wherein R1 and R2 are the same or different and are a linear or branched C1- to C4-alkyl and/or alkenyl group, OR′ is an acetoxy, a C1- to C4-alkoxy and/or a C2- to C6-methoxyalkoxy and/or ethoxyalkoxy group, and the carrier material is a solid at room temperature. The amount of cement in the final formulation is zero or less than 5 wt.-%, based on the total weight of the final formulation in the dry and uncured form. Claimed are also a powder comprising the silane and a carrier with the carrier being a water-soluble polymer, dry mortar formulations containing no or less than 5 wt.-% cement, based on the dry weight of the uncured mortar formulation, as well as processes to manufacture the formulations and/or compounds.
摘要:
A glass mat is provided. The glass mat includes an assembly of glass fibers; and a binder composition including a polymer resin and a crosslinker. The polymer resin has a pH of at least about 5.0. The polymer resin includes a styrenic copolymer, an acrylic copolymer, or combination thereof having at least one functional group of a carboxylic acid, a salt of a carboxylic acid, an anhydride, a salt of an anhydride, or combination thereof. The crosslinker includes a polyol, a polyepoxy, a polycarbodiimide, a polyaziridine, a bivalent metal carbonate, or combination thereof. Further provided is a method of making the glass mat.
摘要:
Lightweight mortar and concrete which comprises a hydraulic conglomerate which includes pure Portland clinker, gypsum and common glass in different proportions, mixed together in a micronized manner until a mechanical alloy of the elements is achieved and light aggregates with a grain size and proportion dependent on the resulting product being mortar or concrete with low density, fundamentally cellular glass or arlite, pearlite, vermiculite, slag, expanded polyethylene and/or glass sands of ground glass and/or silica or limestone sands and/or granulated plastic sands.
摘要:
The invention relates to a cement formulation with two liquid components. This alleviates the problems which result from dust generation where a powdered cement component is employed. Furthermore, the cement may be formed with conventional liquid handling and mixing equipment. The cement binder formulation includes a plasticizer. As the plasticizer is non-volatile, it remains an integral part of both the formulation and the final product obtained after application and drying of that formulation.
摘要:
The present invention relates to concrete with necessary durability using seawater and sea sand. The seawater mixed concrete of the present invention is obtained by mixing a mixture including slag-containing cement and sea sand, with seawater. And by including a nitrite-based admixture and pozzolan, the diffusion coefficient of concrete after hardening can be reduced to restrain the external intrusion of harmful factors. Further, the concrete structure according to the present invention can include seawater mixed concrete and reinforcement for increasing tensile strength.
摘要:
The present invention relates to concrete with necessary durability using seawater and sea sand. The seawater mixed concrete of the present invention is obtained by mixing a mixture including slag-containing cement and sea sand, with seawater. And by including a nitrite-based admixture and pozzolan, the diffusion coefficient of concrete after hardening can be reduced to restrain the external intrusion of harmful factors. Further, the concrete structure according to the present invention can include seawater mixed concrete and reinforcement for increasing tensile strength.
摘要:
The present invention relates to the use of a combination of at least one comb copolymer having a (meth)acrylic backbone, onto which are grafted side chains that end with a hydrophilic group, and at least one ASE acrylic polymer, in the manufacture of an aqueous formulation based on hydraulic binders. An improvement in the handleability of said formulation is achieved, without causing a segregation phenomenon.