# US 2014/0153353 A1 · Method and an apparatus for adding an additive to a cement-like composition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153353 A1 - Document ID: US20140153353A1 - Status: Published application - Kind: A1 - Application number: 14/113,019 - Filed: 2012-04-20 - Published: 2014-06-05 - Earliest claimed: 2011-04-20 - Assignees: Upm-Kymmene Corporation - Inventors: Timo Koskinen; Helmer Gustafsson; Jan-Erik Teirfolk - Web page: https://patentgrep.com/patent/US20140153353A1 ## CPC - B28C 7/04: Supplying or proportioning the ingredients {(B28C7/022 takes precedence; forming a predetermined ratio of the components to be mixed, in general B01F35/80)} - B01F 25/32: wherein the additional components are added in a by-pass of the main flow - B28C 5/026: {Mixing guns or nozzles; Injector mixers (applying plaster by gas pressure E04F21/12; both conveying and distributing concrete E04G21/04; conveying concrete B65G53/32; accelerating or decelerating material flow in troughs or tubes B65G53/58)} - B28C 5/402: {Methods} - C04B 28/02: containing hydraulic cements other than calcium sulfates - C04B 2111/00103: {Self-compacting mixtures} - Y02W 30/91: Use of waste materials as fillers for mortars or concrete - B28C: PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER (preparing material for foundry moulds B22C5/00) - B01F: MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING (mixing paints B44D3/06) - C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE - Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT ## Abstract Disclosed is a method for adding an additive to a cement-like composition, preferably a concrete mixture. The method includes forming a liquid flow, preferably a water flow; feeding an additive to the system; dosing said additive to said liquid flow by feeding it transversely and/or counter-currently to the liquid flow in such a way that mixture is formed which includes said additive and nanocellulose; and adding the formed mixture as an additive to a cement-like composition. Furthermore, disclosed is a cement-like composition and to an apparatus for adding an additive to a cement-like composition. ## Claims ### Claim at position 1 1-15. (canceled) ### Claim 16 A method for adding an additive to a cement-like composition, the method comprising: forming a liquid flow, supplying additive to the system, wherein the additive comprises nanocellulose, by means of an injection fluid forming a side flow, dosing said additive to said liquid flow by supplying it to the liquid flow substantially transversely to the flowing direction of said liquid flow, in such a way that a mixture is formed which comprises said additive and liquid, discharging the injection fluid to the liquid flow, and adding the formed mixture as an additive to a cement-like composition in such a way that such that the rate at which the additive is fed to the liquid flow, is at least three times the flow rate of the liquid flow; wherein the side flow is smaller than 10 volume percent (vol %) of the total flow of the liquid to be processed. ### Claim 17 (depends on 16) The method of claim 16, wherein the injection fluid comprises the same substance as the fluid of the liquid flow and is a side flow taken from the liquid flow and led back to the liquid flow. ### Claim 18 (depends on 16) The method according to claim 16, comprising leading said nanocellulose by means of a feed line to said liquid flow, wherein the dry content of nanocellulose in said feed line is lower than 10%. ### Claim 19 (depends on 16) The method according to the claim 16, wherein the content of nanocellulose in finished cement is at least 0.002 wt-%. ### Claim 20 (depends on 19) The method according to claim 19, wherein the content of nanocellulose in finished cement is not higher than 2 wt-%. ### Claim 21 (depends on 19) The method according to claim 19, wherein the content of nanocellulose in finished cement is not higher than 0.2 wt-%. ### Claim 22 (depends on 19) The method according to claim 19, wherein the content of nanocellulose in finished cement is not higher than 0.05 wt-%. ### Claim 23 (depends on 16) The method according to the claim 16, wherein the cement-like composition used in the method is a concrete mixture. ### Claim 24 (depends on 16) The method according to the claim 16, wherein the liquid flow used in the method is a water flow. ### Claim 25 An apparatus for adding an additive to a cement-like composition, comprising: a liquid flow channel, means for supplying additive to said liquid flow channel, a dosing point in said flow channel, comprising one or more feeding means opening into the flow channel and directed substantially transversely to the flow direction of the liquid flow intended for the liquid flow channel, and arranged to feed said additive in such a way that the additive is mixed to the flow at the dosing point to form a mixture comprising additive and liquid, mixing means for mixing the mixture to a cement-like composition, and an injection fluid feed channel for feeding injection fluid, wherein the injection fluid feed channel is a side flow which is separated from the liquid flow, and is recombined with the liquid flow at the dosing point. ### Claim 26 (depends on 25) The apparatus of claim 25, comprising: a pump in the injection fluid feed channel. ### Claim 27 (depends on 25) The apparatus according to claim 25, comprising an additive dosing container, wherein said one or more feed means are connected to the additive dosing container. ### Claim 28 (depends on 25) The apparatus of claim 25, comprising an additive dosing unit which is arranged to determine the quantity of the additive to be dosed on the basis of predetermined parameters which comprise at least one of the following target values: target solids content of the additive to be fed to the dosing point, target quantity of nanocellulose to be fed to the dosing point, and target additive content for the cement-like composition to be prepared. ### Claim 29 A method for adding an additive to a cement-like composition, wherein the method comprises: forming a liquid flow, supplying additive to the system, wherein the additive comprises nanocellulose, by means of an injection fluid forming a side flow, dosing said additive to said liquid flow by feeding it to the liquid flow counter-currently to the flowing direction of said liquid flow, in such a way that a mixture is formed which comprises said additive and liquid, discharging the injection fluid to the liquid flow, and adding the formed mixture as an additive to a cement-like composition in such a way that such that the rate at which the additive is fed to the liquid flow, is at least three times the flow rate of the liquid flow; wherein the side flow is smaller than 10 volume percent (vol %) of the total flow of the liquid to be processed. ### Claim 30 (depends on 29) The method according to claim 29, wherein the injection fluid comprises the same substance as the fluid of the liquid flow and is a side flow taken from the liquid flow and led back to the liquid flow.