Glazed tile

Wechsel-stein, m. glazed tile, glazed brick. 

With its black concrete bar, parchment paper sconces and walls of grass cloth and glazed tile, the place has the kind of relaxed ambi-... 

Fig. 1.1 Cracks and pores formed on the surface of a glazed tile (Manises, 18th century) from the floor of the balconies of the Basflica de la Virgen de los Desamparados de Valencia, Spain...

Preparation of Chromium. Perform the experiment in the presence of your instructor, in a fume cupboard Wear eye protection or a mask ) Roast chromium(III) oxide in an iron crucible. Triturate potassium dichromate crystals in a mortar, melt the powder in a porcelain crucible with the flame of a gas burner, pour the substance onto a glazed tile plate, and after it solidifies again triturate it into a powder. Weigh 12 g of roasted chromium(III) oxide, 12 g of the fused potassium dichromate, and 10 g of an aluminium powder, and thoroughly mix all the substances in a mortar. Spill 10 g of a calcium fluoride powder onto the bottom of a chamotte crucible, and then the prepared mixture. (If there is no chamotte crucible in your laboratory, make a box from asbestos paper in the form of a crucible and fasten it with wire.) Tamp the substance with a pestle and make a hollow in the middle using a test tube (see Fig. 120). 

Preparation and Properties of Sodium Ferrite. Mix 2 g of an iron(III) oxide powder and 20 g of anhydrous sodium carbonate in an iron crucible. Fuse the mixture on the flame of a gas burner or in a muffle furnace at 800-900 °C. Pour out the hot melt onto a glazed tile. When it solidifies, grind pieces of the melt in a mortar and spill the powder into a beaker with water. What settles onto the bottom of the beaker Write the equations of the reactions. What type of oxides does iron(III) oxide belong to Which salts hydrolyze more strongly, iron(II) or iron(III) salts What does this depend on ... 

The celebrated whita-glazed tiles which are now so much appreciated for the walls of bath-rooms, dairies, and other domestic comforts, are largely manufactured by this firm under the same process. 

Very large beaters (capacity 25 m3), may be used (Figs. 155 and 156). Here, the cutting drum is situated at one end of the tub which is made either of cast iron, from a couple of units to be assembled together, or of concrete. Concrete vessel are lined internally with glazed tiles. The trough is divided into two by means of a vertical baffle plate. In these compartments the bottom is inclined in opposite directions in order to facilitate the circulation of the pulp. 

The hard, glaring, and highly reflective surfaces of polished terrazzo floors, glazed-tile walls, and white ceiling tiles ere-... 

The production room itself should have a minimum ceiling height of 2.5 m and the floors should be watertight and made from concrete with acid brick tiles or other suitable material. The floors should slope appropriately toward drainage points. The walls should be covered with glazed tiles or other suitable material at a minimum height of 1.7 m and the transition between the floor and wall should... 

In chemical plants where corrosive, wet conditions are anticipated, walls are protected with membranes and brick veneers in the same manner as floors. Alternatively, a divider wall between two rooms, or one that is to support a roof or other load, may be built entirely of "acid brick" and mortar. A different, more attractive system, is usually followed in food plants such as dairies, often employing glazed tile or block. The latter are laid just as are regular cement block, except that the face joints are left void to a depth of % in. or more, or raked back to that depth before the joints set up. After cure, the surfaces of the joint are cleaned usually with dilute hydrochloric acid, and the joints pointed full with a furan mortar. See Drawing 14 to see how this kind of a wall is mated to an "acid brick" floor and membrane. 

The masonry units used in the pulp and paper industry include fireclay, shale, and carbon brick, structural glazed tile and Portland cement/aggregate brick. Structural glazed tile and Portland cement/aggregate brick are relatively unique to this industry and have not been widely used outside of it. 

Another masonry product, structural glazed tile, found its first use in the pulp and paper industry in the early 1930s. A number of different configurations of these tile are shown in Figure 51-1. 

Installations producing ceramic products by means of firing, particularly tiles, bricks, refractory bricks, glazed tiles, stoneware or porcelain articles, with a production capacity in excess of 75 tonnes per day and a firing capacity of over 4 m3 and over 300 kg/m3 load density per kilo. ... 

The fabric is then piled uniformly in the storage pits or glazed tile lined piling pits. The bin pilers (Fig, 7-46) drop the fabric on pits. The pilers are mounted on rails... 

With nonaqueous media, apparatus constructed of iron and lined with plastics, such as Teflon, Kel-F, Saran, polyvinyl chloride, polyesters, epoxy resins, or with stoneware, enamel, porcelain, glass, lead, nickel, Inconel, stainless steel, Hastelloy, Duriron, glazed tile, carbon brick, Karbate, titanium, tantalum, and zirconium can be used for the whole plant or specific apparatus. 

In aqueous media where hydrochloric and hypochlorous acid and halogens are present in either vapor or liquid phase, the utility of the above materials of construction is severely lin ited and can best be determined by rates of corrosion study during pilot laboratory operation. Tantalum, zirconium, and titanium are usually resistant but expensive. The plastics are of variable resistance and are severely limited by temperature and solvent attack. Stoneware, Karbate, glass, glazed tile, carbon brick, and enameled steel all have utility within rigid limits. The other metals and alloys are usually questionable but may be desirable for replaceable piarts i... 

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