Abstract: The removal of one or more of the gases CO2, N2 and H2S from gas mixtures containing at least one of said gases with use of an 8-ring zeolite having a Si:Al ratio from about 1:1 to about 1000:1. The preferred gas mixture is a natural gas feedstream and the preferred 8-ring zeolite is DDR.

Abstract: The adsorption of CO2 from flue gas streams using temperature swing adsorption. Adsorbent contactors are used in the temperature swing adsorption unit that contain a plurality of substantially parallel channels comprised of or coated with an adsorbent material that is selective for adsorbing CO2 from flue gas.

Abstract: Pollution reduction processes may be incorporated with, or retrofit to fit with, existing combustion processes to assist with the reduction of pollutants produced in the combustion process. The thermal treatment of oil shale in the pollution reduction process produces kerogen, shale sorbent particles, or mixtures thereof, which may be reacted with a pollutant-containing gas or pollutant-containing gas having particulate matter entrained therein to reduce the pollutants in the gas. Apparatuses employing the processes are also disclosed.

Abstract: An air filtration media pack is provided having a plurality of layers of single facer media. The layer of single facer media includes a fluted sheet, a facing sheet, and a plurality of flutes extending between the fluted sheet and the facing sheet and having a flute length extending from a first face of the filtration media pack to a second face of the filtration media pack. A first portion of the plurality of flutes are closed to unfiltered air flowing into the first portion of the plurality of flutes, and a second portion of the plurality of flutes are closed to unfiltered air from flowing out of the second portion of the plurality of flutes so that air passing into one of the first face and the second face of the media pack and out the other of the first face and the second face of the media pack passes through media to provide filtration of the air. The fluted sheet includes repeating internal peaks facing toward the facing sheet and repeating external peaks facing away from the facing sheet.

Abstract: The present invention generally relates to large capacity (e.g., greater than 350 tons/day O2) vacuum pressure adsorption (VPSA) systems and processes that employ a single train including four beds, at least one feed compressor feeding two beds simultaneously at any given instant in time, and a single vacuum pump. The compressor(s) and the vacuum pump can be utilized 100% of the time. Use of product quality gas for purging is avoided, with about 10-20% improvement in O2 productivity and 5-10% reduction in capital cost expected.

Abstract: The present invention relates to engineered structured adsorbent contactors for use in pressure swing adsorption and thermal swing adsorption processes. Preferably, the contactors contain engineered and substantially parallel flow channels wherein 20 volume percent or less of the open pore volume of the contactor, excluding the flow channels, is in the mesopore and macropore range.

Abstract: A carbon nanotube filter. The filter including a filter housing; and chemically active carbon nanotubes within the filter housing, the chemically active carbon nanotubes comprising a chemically active layer formed on carbon nanotubes or comprising chemically reactive groups on sidewalls of the carbon nanotubes; and media containing the chemically active carbon nanotubes.

Abstract: A vacuum cleaner including multiple cleaning stages comprises a first cyclonic stage and a second cyclonic stage, which is spaced from the first cyclonic stage. A housing defines a first particle collector that communicates with the first cyclonic stage. The first particle collector includes an opening. A removable lid covers the first particle collector opening. A second particle collector in communication with the second cyclonic stage is removable with the lid. A suction motor is supported by the vacuum cleaner. The suction motor establishes and maintains a flow of air through the vacuum cleaner.

Abstract: Beverage making equipment, water heating equipment, and methods for using such equipment which use heated water and dispenses heated water from a heated water reservoir. The apparatus includes a water line extending from the heated water reservoir to a dispensing point, the line having a positive slope between the reservoir and dispensing point. A vent tube may also be used communicating with and coupled to the line with a return passage communicating with the vent and reservoir. The method of dispensing water from a heated water reservoir involves dispensing water from the reservoir at one level and delivering water to a dispensing point at a second level positioned at a positive dimension above the dispensing port of the heated water reservoir. the method may also include providing a vent tube coupled to and communicating with the line for removing gas which evolves from water passing through the line and returning the gas to the reservoir.

Abstract: A beverage machine for preparing and dispensing a hot beverage having a pump dispensing system. Hot water passes through a water distributor to infuse material in a filter basket. A coffee tank receives the brewed beverage and maintains it at an appropriate temperature. On demand, a pump dispensing system delivers the beverage through an outlet chamber and spout into a user's cup. The user manipulates a switch to vary the rate at which the pump dispensing system dispenses the beverage.

Abstract: A programmable brewer capable of brewing approximately 250 different brewing profiles for beverages brewed by the brewer, including a housing, the housing integrated into a base, said base capable of supporting a decanter or canister into which the brewed beverage is deposited, said cover being cantilevered forwardly at the top of the housing, a water tank capable of producing heated water for use for brewing purposes, a spray head contained within the forward portion of the cover, and tubing provided for directing hot water towards the spray head for deposit into a brew basket holding grounds, so that during a brewing cycle, the water is heated within the heating tank and siphoned towards the spray head for deposit upon the grounds for brewing purposes.

Abstract: Disclosed is a system and method of dispensing a selected volume of liquid. The system includes an apparatus that has a reservoir having an inlet tube and outlet tube coupled thereto, and a controller for controlling at least a portion of the apparatus. Two level sensors are positioned along the reservoir and are in communication with and controlled by the controller. The method includes steps for measuring a time a liquid level in the reservoir falls from an upper level to a lower level to calculate a flow rate. The calculation flow rate may then be used to determine and compare a dispensed volume versus the selected volume. Dispensing may then continue until the selected volume has been dispensed.

Abstract: An equipment for the production of a hot beverage comprises a boiler, a collection container being associated to the boiler and means for defining a connection path from the boiler to the collection container comprising means for limiting the pressure drop experienced by a liquid contained in the boiler that, when the boiler is heated, rises up along the path to the collection container. A housing chamber for a powdered or ground ingredient is defined by a container for the powdered or ground ingredient, being inserted in the open mouth of the boiler, and a bottom of the collection container. A bottom of the container moves along side walls of the container between a rest position, corresponding to a non-assembled configuration of the equipment, and a working position, corresponding to an assembled configuration of the equipment.

Abstract: A lid structure includes a lower lid slightly flared at the upper fringe, and having an engagement flange formed around it with a claw provided on its upper edge. A cutting tube of an upper lid is extended down from the center of the upper lid and inserted into the lower lid. The bottom of the cutting tube is also tilted. A detent is formed on the inner surface at the lower end of the upper lid to engage with the claw of the engagement flange so as to couple tightly the two lids. Several gaskets are provided around the inner side wall of the upper lid. An infusion drink material is filled into the cutting tube of the upper lid, and a film is used to seal the bottom of the lower lid.

Abstract: An apparatus and method for cooking food directly with a CO2 laser (10). A CO2 laser (10), which is known to be much hotter the other types of laser is directed at a beam splitter (30) which splits the laser beam in half and then mirrors are used to focus said beam to either side of the food which one wants to cook. The beams are much hotter then most types of lasers and as such most foods will be cooked in less then a second.

Abstract: The invention relates to an apparatus used for automatically shutting off cooking appliances, such as ovens, stoves, hot pots, toasters, grills, and others. More specifically, the apparatus is secured to a cooking appliance, e.g. to its control panel, and may prevent a cooking appliance from being turned on before a timer is set. The apparatus can also increase the ease with which a cooking appliance knob or other actuator may be used. To automatically shutoff the cooking appliance, the apparatus uses a timing mechanism with a spring. Pressure is exerted on a spring when the timer is set, storing enough force in the spring to enable it to turn the cooking appliance to the OFF position when time has expired. A mechanical stop is in place to keep the spring energy from releasing until the timer reaches the OFF position.

Abstract: A novel tortilla warmer is disclosed and comprises a housing with a feeder assembly, a feed system, a heating chamber and an output whereby unheated tortillas are individually fed into the tortilla warmer and are heated to a level selected by a user and outputted when ready. The tortilla warmer of the present invention can also employ a feeder assembly for the storage of unheated tortillas in a manner that is compatibly with automatic feeding of the tortillas into the tortilla warmer. In one embodiment of the present invention, the tortilla warmer may be controlled by a remote control whereby the tortilla warmer functions can be activated from a distance.

Abstract: The present invention provides an automatic or semi-automatic method for turning over and/or stirring the cooking material of a cooking container in an automatic or semi-automatic cooking utensil. The method can comprise the following steps: (1) limiting the cooking material in a cooking container within a desired area in its main direction or all directions by a limiting means, and (2) turning over or stirring the cooking material limited in the desired area of the cooking container through the movement of the cooking container and/or by a turning-over/stirring means. The present invention also provides a turning-over/stirring device with a limiting means and an automatic or semi-automatic cooking utensil with such a turning-over/stirring device.

Abstract: A deep fat fryer with continuous oil filtering and purging of sediments therefrom during uninterrupted fryer operation is provided. The filter includes a cylindrical hollow housing with a first end and a second end and a hollow cylindrical screen with a longitudinal axis and first and second ends. The screen is disposed coaxially within the hollow housing to define an annulus therebetween. A piston mounted within the screen and reciprocatingly movable along the longitudinal axis between the first and second ends of the screen. A pump, seal, and associate motor are provided to provide continuous oil flow through the filter and the remainder of the fryer. A heat exchanger is provided downstream of the pump to transfer heat from the fryer to the oil flowing through the heat exchanger.

Abstract: A frame (1) for receiving and holding a removable board (2) for use in the manufacture of edible products such as bread and the like. The frame (1) comprises a plurality of side walls (100, 101, 102, 103) and reinforcing cross-members (104, 105, 106) so that a board (2) which is adapted to be retained within the frame (1) is protected from damage and wear during transportation along mechanised conveyors in the bread making process. The board (2) is provided with a lip which extends around its perimeter and projects laterally beyond the side walls of the frame to enable removal of the board from the frame. The board (2) further comprises a textured upper surface which helps to prevent dough from sticking and facilitates the eventual removal of the dough from the board.

Abstract: A food chilling device has a generally cylindrical elongate body with an outer wall, a closed end, an open end, a reservoir within the outer wall between the open and closed ends, and a reference axis oriented lengthwise between the open and closed ends. A closure assembly is removably installed on the device to close off the open end of the body and to seal the reservoir. In one example, a first handle extends outward in a radial direction relative to the reference axis of the body and has a first grip spaced outward beyond the outer wall. A second handle extends in a lengthwise direction and has a second grip spaced from the open end of the body. In another example, the closure assembly has an annular collar surrounding the open end of the body and with an inward extending circumferential shoulder. A cap with a stopper section engages the collar to close off the open end of the body.

Abstract: A method and device are configured to remove or reduce the quantity of one or more contaminants from a beverage, such as an alcoholic beverage. A contaminant removing material may be formed into an object or be associated with an object for contact with a beverage. The invention has particular applicability to removing or reducing the sulfite content of an alcoholic beverage and may change other properties of the beverage, such as its color. The contaminant removing material may be associated with a pour spout. The spout may also include one or more air inlets, an aeration mesh or both to aerate a beverage as it is poured. In addition, the pour spout may include one or more magnets to remove contaminants and change other properties of the beverage, such as its taste.

Abstract: A system and method are provided that allow meat logs to be manually loaded into a slicing station and thereafter be continuously automatically processed at the slicing station, a harping station, and an insertion station for automated packaging thereof without the need for handling of the meat stacks by workers. To this end, the slicing station is effective to form smaller sections or chubs from the meat logs and to do so such that the chubs are provided with substantially parallel flat end-faces to ensure that high quality meat slices are generated therefrom. The chubs are then transported to the harping station where each of the chubs undergoes a single cutting operation, thus simultaneously forming the meat slices therefrom and substantially maintaining the slices in the configuration of the chubs for generating well-formed stacks of the slices.

Abstract: An electrically powered apparatus for peeling vegetables and fruits having a handle housing containing a rotary electric motor with a rotatable output shaft, the output shaft being accessible from a distal end of the housing and a battery power source contained within the handle housing. A manually operable switch is mounted on the housing to operate the motor. A rotatable flexible peeler assembly is detachably connected to the output shaft for rotation by the shaft, with the flexible peeler assembly comprising a plurality of flexible blade members mounted to a cylindrical support base member and a cutting tip mounted to distal end of the support base member. Each flexible blade member is formed with a base portion which is mounted in the support base member and defines a plurality of transverse slits which extend away from the base portion to the outer edge of the blade member to form a plurality of flexible abrasive strips.

Abstract: A waste bin (1) for used paper towels or the like waste has an upper part including a rear wall (2), two side walls (4, 5), and a front wall (3), which upper part include compacting unit (6, 7). According to the invention, the compacting unit (6, 7) in its rest position divides the inner space of the waste bin (1) into an upper (8) and lower compartment (9) and is movable to open and re-close an opening into a lower part of the waste bin.

Abstract: This invention relates to a unit for compacting waste prior to disposal. The invention provides a waste compaction unit for fitting into a housing comprising a lid and an interior for collecting waste, the compaction unit comprising a plunger comprising bellows housed in said lid; a pneumatic locking mechanism housed in said lid; and a pump connected to the plunger via said locking mechanism wherein the pump is arranged in operation to activate the locking mechanism prior to inflating the bellows to extend the plunger axially towards the bin interior such that any waste collected therein is compacted.

Abstract: There is proposed a clamping mandrel for a rotationally symmetrical hollow body in the form of a beverage can integrally comprising a body portion and a bottom. Accurate coupling and precise control of the movement of the mandrel is to be transmitted to the hollow body. For that purpose there are provided a plurality of clamping segments forming an outwardly facing cylindrical clamping surface for engaging an inside surface of the hollow body. The clamping segments are radially movably guided. A force-transmission device arranged in the interior of the clamping mandrel is provided for synchronous control of the radial movement of the clamping segments. That provides for controlled precision movement of a hollow body clamped by the clamping device.

Abstract: A fabric-printing stencil system includes a first stencil plate with a continuous incision that defines a first stencil image dividing said first stencil plate into a positive image plate and a negative image plate. The negative and positive image plates are complementary to form the entire plate, except for the relatively narrow incision. The positive and negative image plates clamp a piece of fabric such that the positive image plate lies underneath and the fabric is stretched across the positive image plate, while the negative image plate lies above the fabric and covers the fabric, or vice versa. A second stencil plate has a second stencil image matched to the first stencil image and the first and second stencil images together define a completed image when printed on the fabric. The stencils are preferably cut by way of a laser from corresponding stencil plates and the images are printed by roller, brush, and spray application.

Abstract: A profile generator determines differences between the standard spectral reflectances of a color chart printed under standard density conditions and the spectral reflectances of a color chart printed while the density of one of the colors C, M, Y, K is changed, and the densities of the other colors are secured to standard densities. When density variations are established, the profile generator generates a print predicting profile using spectral reflectances produced by adding the standard spectral reflectances and the difference with respect to the color whose density has changed. The colors of a print produced when the density of a desired color is changed are predicted with high accuracy using the print predicting profile.

Abstract: A surface, especially a galvanically molded transport cylinder sleeve, has a surface structure for contacting printing material, in particular sheets of paper. The surface structure includes first structural elevations spaced apart from each other by a minimum distance A1 and having a height B1 and second structural elevations spaced apart from each other by a minimum distance A2 and having a height B2 with B2<B1. A ratio between the distances A1 and A2 ranges between 10:1 and 1:1. The surface has support areas for supporting the printing material. The printing material is prevented from contacting a planar horizontal surface between the support areas of first, higher structural elevations due to second, lower structural elevations with support areas thereof that are formed between the first, higher structural elevations. A machine for processing printing material and a method for producing areas with a surface structure, are also provided.

Abstract: A plate cylinder includes a cylinder including a longitudinal axis and a centroid located at a geometric center of the cylinder. The cylinder also includes a slot for receiving both ends of a printing plate; the cylinder including a counter balance hole extending axially in the cylinder and being displaced from the longitudinal axis, the counter balance hole balancing the slot; and the cylinder including a mass balance hole extending axially in the cylinder and being displaced from the longitudinal axis, the mass balance hole balancing the plate cylinder. The cylinder further including at least one hole extending axially in the cylinder and being displaced from the longitudinal axis of the cylinder to reduce the variation in products of inertia as the plate cylinder rotates. A cylinder is also provided. A method is also provided.

Abstract: An apparatus and method for clamping printing plates on a plate cylinder is disclosed. A clamping element is integrated into a lockup slot of a plate cylinder with an actuating element. The clamping element is transferred by the actuating element between a first position, where the clamping element clamps the leading end and/or the trailing end of the printing plate, and a second position, where the clamping element releases the leading end and/or the trailing end of the printing plate. The clamping element can be adjusted exclusively in the radial direction of the plate cylinder and the actuating element exclusively in the axial direction of the plate cylinder such that, depending upon the relative axial position of the actuating element with respect to the clamping element, the clamping element is displaced either radially outwardly for clamping the printing plate or is displaced radially inwardly for releasing the printing plate.

Abstract: A printing cylinder, including: a cylinder body defining at least one tensing channel for tensing with at least one printing block; a tensing jaw arranged in the tensing channel; and a tensing counter jaw which is arranged next to the tensing jaw in the tensing channel and is tiltable about a rotational axis relative to the tensing jaw and the cylinder body, and comprises a tilting area on an outer circumferential area; wherein the tensing jaw and the tensing counter jaw define at least a portion of a gap, into which one end of the at least one printing block can be inserted; and wherein the tensing counter jaw is supported during a tilting movement via its tilting area on a supporting area formed in the tensing channel.

Abstract: A device for feeding printing plates to a plate cylinder includes a pressure roller for pressing the printing plate against the circumferential surface of the plate cylinder when the printing plate is being mounted. In order to compensate for uneven pressing forces resulting from a bending of the pressure roller, cylindrical segments are provided that have different widths and/or different diameters and/or different distances between the segments. A printing unit of a rotary printing press having the device, is also provided.

Abstract: An electronic device includes an array. In one embodiment, a process for forming an electronic device includes the array, which includes electronic components, can include printing one or more layers as a series of segments onto a workpiece. In one embodiment, a process includes printing a layer onto the workpiece and at least one exposed portion of the chuck. In still another embodiment, a printing head is greater than 0.5 mm from the workpiece. In a further embodiment, “hybrid” printing can be used to help form a thicker layer having a relatively thinner width. In a further embodiment, processes can be used to reduce the likelihood of a stitching defect, nonuniformity of a layer across an array, or a combination thereof. A printing apparatus can be modified to achieve more flexibility in liquid compositions, temperatures or other conditions used in printing a layer.

Abstract: Disclosed is a detonation initiator that can form part of a demolition assembly. The detonation initiator can include a linear actuator assembly having a core with a permanent magnet disposed with respect to a coil, and a firing pin coupled to the core and disposed along a longitudinal axis of the linear actuator assembly. A capacitor can be used to store electrical energy derived from an electrical pulse received by the detonation initiator. An electrical circuit can be used to monitor the charge on the capacitor and to discharge the capacitor through the coil of the linear actuator assembly to propel the core along the longitudinal axis of the linear actuator assembly when the charge on the capacitor reaches a charge threshold.

Abstract: An initiator assembly (38) is factory-pre-assembled and comprises an initiation fixture (10) secured to a triggering device (40). The initiation fixture (10) comprises a unitary body, i.e., one without moving parts, and includes a bushing groove (18) to receive as an accessory an O-ring (64) to seal the device within the barrel (42) of the triggering device (40). A fuse/fixture sub-assembly (34) includes an initiation charge (30) disposed at the firing face (13a) and a signal-transmission fuse (22). The initiation fixture (110) may be a “universal” fixture having thereon optional external threads (36) and being otherwise dimensioned and configured to be received within either an internally threaded barrel (42) of a triggering device (40) or the barrel (42) of a triggering device which utilizes a fuse-holder cap (56). The initiator assembly (38) may include a spool (66) on which the signal-transmission tube (22) is wound.

Abstract: A shaped charge comprises a shell, an explosive charge disposed inside the shell, and a first liner for retaining the explosive charge within the shell. The shaped charge further comprises an acid material disposed inside the shell on the first liner and retained by a second liner into the shell.

Abstract: Electronic blasting systems typically permit blasting with detonator delay times having millisecond accuracy. Disclosed herein are blasting apparatuses and methods of blasting that are capable of even higher degrees of delay time accuracy, for example involving programmable delay times selectable to an accuracy of about 0.25 ms, 0.1 ms, or better. Such methods and apparatuses present unprecedented and unexpected advantages for both mining applications, civil engineering uses, and in seismic prospecting.

Abstract: The present invention relates to a method and an arrangement for the production of radially perforated, cylindrical propellant tubes (1, 23, 31). The invention is based on the underlying idea that the respective propellant tube (1, 23, 31) must be fixed and centred between its own open ends and thereafter to be perforated in stages in a large number of consecutive perforation operations by means of one or more pins (13) capable of displacement in a pin die (10) relative to the propellant tube towards and at least through the major proportion of the cylindrical wall of the propellant tube. Also included in the invention is the requirement for the displacement, between each perforation operation, of the propellant tube and the pin die (10) used for the preparation operation in such a way relative to one another that the propellant tube, after a complete perforation operation, shall be covered in its entirely by perforations (32, 33, 35, 36), which lie at a predetermined e-dimension distance from one another.

Abstract: A gas generator has a propellant charge and an early ignition device held loosely in the propellant charge. The early ignition device consists of an early ignition charge and an enclosure surrounding the early ignition charge. The enclosure is at least one foil wrapped around the early ignition charge. The outer edges of the foil, lying one over another, are connected with each other to close the enclosure.

Abstract: The present invention is an improved ski lift. The ski lift contains a solar power source which is attached to one or more heating elements. The heating elements heat a passenger's hands during transit up the mountain. As a result, the passenger is made more comfortable during transit, increasing his or her overall skiing experience.

Abstract: A railroad well car includes a pair of spaced trucks, and a railcar body supported on the trucks, the body comprising a pair of spaced end structures, each end structure supported on one truck, and a well structure extending between the end structures. The well structure comprises a pair of top chord members extending between the end structures; a pair of side sills extending between the end structures; a pair of end chords extending between the side sills; four corner container support members, each secured to one end chord and one side sill at four corners of the well structure; a plurality of floor beams extending between the side sills forming at least a portion of a floor for the well structure; and a plurality of side truss members extending between one side sill and one top chord on each side forming an open truss side for the well structure.

Abstract: An ink used in an ink-jet recording process in which ink droplets are ejected from a recording head by the action of thermal energy to record images on a recording medium; the ink containing at least (a) a pigment, (b) a dispersing agent, (c) a liquid medium and (d) an alkali metal salt of a malonic acid derivative, represented by the following Formula (1): wherein R represents an alkyl group, and M represents an alkali metal.

Abstract: Pigment compositions for oil-based lithographic printing ink systems are provided which comprise as colourant besides an organic pigment an organic dyestuff soluble in an organic solvent (solvent dye). The printing inks prepared from these pigment compositions show outstanding improvements in colour strength combined with improvements in both gloss and transparency of the prints obtained.

Abstract: An aqueous ink for inkjet recording is provided, which includes water, pigment, a water-soluble organic solvent incorporated at a content of not less than 30% by weight, a surfactant, and 3-methoxy-3-methyl-1-butanol. The surfactant is formed of at least one selected from the group consisting of acetylene glycol-based surfactant and a fluorinated surfactant.

Abstract: A running-in coating for gas turbines and a method for production of a running-in coating are provided. The running-in coating serves to seal a radial gap between a housing (11) of the gas turbine and the rotating blades (10) themselves, whereby the running-in coating (13) is applied to the housing. The running-in coating is made from a CoNiCrAIY-hBN material. The CoNiCrAIY-hBN material can be applied by thermal spraying, in particular plasma spraying.

Abstract: The invention relates to a chemically modified high molecular mixture for surface-painting on a plastic substrate, which consists of polyurethane emulsion, ionic type silicone solution, and ion exchange water, and to a method for preparation of the mixture comprising the steps of: (1) providing from about 40% to about 60% by weight of polyurethane emulsion, from about 30% to about 40% by weight of ionic type silicone solution, and from about 10% to about 25% by weight of ion exchange water; (2) adding sequentially the materials of step (1) into a stainless steel container; (3) stirring the materials in the container at a high speed of 3500-4500 rpm/min for 30 to 60 minutes to form a mixture; and (4) sieving the mixture via a 250 mesh sieve. The chemically modified high molecular mixture has advantages including no re-sticking, easy drying and high resistance to water, rubbing, solvent, and yellowing.

Abstract: A colorizing composition for adding color to a concrete structure comprises a color additive containing a pigment component, a vegetable oil based diluent, and a vegetable oil based sealer component. The combined sealer and color additive, when applied to a pervious concrete, will permit the flow of water through the pervious concrete.

Abstract: A cement admixture and a cement composition having a carbonation suppressing effect and a heat-of-hydration suppressing effect are provided. A cement admixture containing one or more non-hydraulic compounds selected from the group consisting of ?-2CaO.SiO2, ?-CaO.SiO2 and calcium magnesium silicate, a cement composition containing said admixture, and a carbonation suppressing method by use of said cement admixture or cement composition. According to the present invention, a remarkable carbonation suppressing effect can be obtained particularly when used in portland blast-furnace slag cement. This leads to an effective use of steelmaking slag and the like, and the load of clinker can be reduced, so that a cement composition of a low environmental load type can be attained. Further, this is suitable for cements in conformity with the EN standards, which are used in civil engineering and building industries.