TH62868A - Foam fire-resistant mixtures and foam fire-resistant mixtures - Google Patents

Abstract

------ 06/11/2017 ------ (OCR) page 1 of number 1 page invention summary Exposed is an optimized based-on admixture for formulation of foam-cement mixtures, foam-cement mixtures, hydraulic binder-based foam formation methods. A (hydraulic binder foam) and a method related to conveying and application of the foam obtained As a result, to the substrate, a slurry with pumped cement is formed. The slurry is mixed with a gas such as air and subjected to a mechanically formed turbulence to generate gas bubbles and Cause foam Ideally, this foam should be stabilized by a stabilizing agent such as the polyvinyl alcohol contained in the slurry. This foam is then conveyed to a nozzle or Other suitable distribution points To apply the foam, for example by spraying it to the substrate that will Get coated Before you distribute Ideally, a formation accelerator should be injected, which will gel the foam, which will subsequently improve its hanging state. (hangability) of the product on the substrate The sprayed material binds to the substrate and becomes hardened to form an insulating coating on the substrate as well. link Cemented cement that can be hydrated Mechanically and optional foam stabilizers for fibrous compositions Formation retardants and air entraining agents, preparation of such mixtures, adding water, gas and mechanical turbulents, a formable foam that can then be applied by Spray to the structural components that are Steel and after application by spraying This formable foam is bonded to the Components in the foam state and after formation This foam, after its formation, forms a coating that It is a fire and heat resistant adhesive on this component. ------------ Exposed is an additive based on optimized mixtures to form foam cement-based mixtures. This foam cement-based mixtures, hydraulic foam binder methods, and conveying and application methods. The foam, which is obtained as a result, is applied to the substrate. Will give rise to slerry With pumpable cement The slurry is mixed with a gas such as air and placed under a turbulence that Occur mechanical To produce gas bubbles and foam formation. Which if so good The foam should then be stabilized by a foam stabilizer like polyvinyl alcohol contained in the serrie, then conveyed to the nozzle or distribution point. Other suitable To apply the foam, for example, by spraying it to the substrate that will be coated prior to distribution. Gives the foam to a gel which subsequently improves the product's hanging condition on the substrate. Substrate and will be hard This is done to form an insulating coating on the substrate. Likewise, what was Revealed as a dry mixtures which It consists of a cementitious cementitious compound that can be hydrated, a mechanically stable foam stabilizer. And, as an alternative to fibrous components, formation retardants And air bubbles Preparation of the mixture, the addition of water, gas and mechanical turbulents. Foam that can form Yes, which can be applied by Spray to the assembly. The steel structure and after spray application this formable foam will be bonded to the piece. Assembled in the foam state and after the formation This foam after formation It then forms a adhesive coating that prevents heat and fire on the assembly.

Claims (23)

------06/11/2017------(OCR) Page 1 of 2 pages. Claims 1. A method for the formation of a stable foam that is effective for spray application, which includes: dry mixing of a formulation containing a hydraulic binder, polyvinyl alcohol and a foam retarder; formation of a pumpable slurry by adding a sufficient amount of water to the dry mixture; conveying the slurry to a flexible hose; introducing gas into the slurry along the length of the flexible hose to create sufficient turbulence in the hose to foam the slurry; and conveying the foam through the flexible hose. 2. The method according to claim 1, which is further incorporated with the introduction of a foam accelerator. The foam stabilization agents are: 3. The method under claim 2, where the accelerating agent is alum; 4. The method under claim 3, where a sufficient amount of alum is added to the foam to cause it to gel; 5. The method under claim 1, where the hydraulic binder is selected from a group consisting of Portland cement, gypsum, and a composite of Portland cement and gypsum; 6. The method under claim 1, where the hydraulic binder is calcium sulfate hemihydrate; 7. The method under claim 1, where the foam stabilizer is powdered polyvinyl alcohol; 8. The method under claim 7, which is further incorporated with a spray application. 9. The method under claim 1, in which the hydraulic binder is calcium sulfate hemihydrate, the polyvinyl alcohol is powdered polyvinyl alcohol, and the method is further combined with the introduction of aluminum sulfate into the foam in the length of the said flexible tube. Page 2 of 2. 10. The method under claim 9, in which the calcium sulfate hemihydrate polyvinyl alcohol is combined in a dry state, and in which water is added to the combined calcium sulfate hemihydrate and foam stabilizer to form the slurry. 11. The method under claim 10, which is further combined with the combination of the retarder with the calcium sulfate hemihydrate and polyvinyl alcohol. 12. The method under claim 1, which is further combined with the feeding of the foam in the said flexible tube into the enclosure. 12. The method under claim 12, whereby the foam is forced out of the enclosure and into another flexible pipe; 13. The method under claim 12, whereby the foam is applied by spraying onto the substrate as it exits another flexible pipe; 14. The method under claim 12, whereby the gas is air. 1. An effective method for generating stable foam for spray applications involves dry mixing a formulated mixture containing a hydraulic binder, polyvinyl alcohol, and a foam retarder. Pumpable slurry is formed by adding sufficient water to the dry mixture, conveying the slurry to a flexible hose, introducing gas into the slurry through the hose to create sufficient turbulence to foam it, and finally conveying the foam through the hose. 2. The method under claim 1, which includes the introduction of a foam accelerator into the foam to accelerate its formation and stabilize the resulting mixture. 3. The method under claim 2 where the accelerating agent is alum. 4. A method pursuant to claim 3 in which sufficient alum is added to the foam to cause it to become a gel. 5. The method under Claim 1 in which the hydraulic binder is selected from a group consisting of Portland cement, gypsum, and a composite of Portland cement and gypsum. 6. The method under claim 1 where the hydraulic bonding agent is calcium sulfate hemihydrate. 7. Method under claim 1 in which the foam stabilizer is pictured is powdered polyalcohol. 8. The method under claim 1 in which the said slur is further incorporated with a formation retardant. 9. The method under claim 8, which includes the application of the aforementioned spray foam to the substrate and the allowing of the foam to harden on the substrate. 10. The method under claim 1, in which the hydroxyl binder is calcium sulfate hemihydrate, the foam stabilizer is polyvinyl alcohol, and the method is further incorporated by introducing aluminum sulfate into the foam in a flexible tube. 11. The method under claim 10 in which the said calcium sulfate hemihydrate and the said foam stabilizer are combined in a dry state, and in which water is added to this combined calcium sulfate hemihydrate and foam stabilizer to form the said slurry. 12. The method under claim 11, which further comprises the combination of the retardant with the aforementioned calcium sulfate hemihydrate and the foam stabilizer. 13. The method under claim 1, which includes the feeding of such foam in such flexible tubing into an enclosure, with a volume of expansion relative to such flexible tubing, and the control of the pressure in such enclosure to force the foam out of such enclosure at the desired rate. 14. The method pursuant to claim 13 in which the foam is forced out of the said enclosure and into another flexible tube. 15. The method under claim 13 in which the foam is applied by spraying onto the substrate when the foam exits the other flexible tube. 16. The method under claim 1 where the gas is air. 17. The method under claim 1 to introduce sufficient gas into the slurry to transport the resulting foam through the said flexible pipe. 18. Dry mix for the formation of a optimized flame retardant compound for spray application to steel substrates. This dry mix, comprising a hydraulic binder, foam stabilizer, and setting retarder, when water is added, provides a pumpable slurry. Upon mechanical application of a turbulence to this slurry, a formed foam can be sprayed onto the steel substrate and, after spray application, adheres to the substrate. 19. The dry mixture pursuant to claim 18, in which the foam stabilizing agent is powdered polyvinyl alcohol. 20. Dry mixtures pursuant to claim 18, where the hydroxyl binder is stucco. 21. Dry mixtures as per claim 18, which are further combined with calcium carbonate. 22. A dry mixture as per either claim 18 or 21, which is further composed of alpha-olefin sulfate. 23. A dry mixture as per either claim 18 or 21, which in turn contains glass fibers and cellulose fibers.