# US 4,391,664 A · Process for fixing tiles in position

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- Number: US 4,391,664 A
- Document ID: US4391664A
- Status: Granted
- Kind: A
- Application number: 06/183,228
- Filed: 1980-09-02
- Granted: 1983-07-05
- Earliest claimed: 1980-02-26
- Assignees: Schmelzbasaltwerk Kalenborn, Dr. Ing. Mauritz KG
- Inventors: Wilhelm Kramer
- Web page: https://patentgrep.com/patent/US4391664A

## CPC

- B65G 11/166: {for bulk}
- C04B 26/10: obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B 2111/00482: {Coating or impregnation materials}
- Y10T 156/1089: of discrete laminae to single face of additional lamina
- Y10T 156/1092: All laminae planar and face to face
- Y10T 428/166: Glass, ceramic, or metal sections [e.g., floor or wall tile, etc.]
- Y10T 428/31522: Next to metal
- B65G: TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS (packaging B65B; handling thin or filamentary materials, e.g. paper sheets or thread, B65H; cranes B66C; portable mobile or lifting or hauling appliances, e.g. hoists, B66D; devices for lifting or lowering goods for loading or unloading purposes, e.g. fork-lift trucks, B66F9/00; emptying bottles, jars, casks, barrels or similar containers, not otherwise provided for, B67C9/00; delivering or transferring liquids B67D; filling or discharging vessels for liquefied, solidified or compressed gases F17C; pipe-line systems for fluids F17D)
- 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
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A process for fixing wear-resistant armoring tiles to cement mortar. In accordance with the process, the back sides of the tiles are coated with a mixture of polyester epoxy resin composition including sand and quartz or sand powder, with a curing agent. A material having an affinity for the cement mortar (like quartz sand or lavalite) is dusted and rolled into the coated back side of the tiles, so as to thoroughly be mixed up with the resin mixture coating. After the hardening of the coating including the material having affinity to cement mortar, the tiles are embedded in the cement mortar. Accordingly, this process substantially eliminates the well known poor adhesive properties of such tiles with respect to cement mortar.

## Claims

### Claim 1

A process for fixing in position on a cement mortar coated supporting structure wear-resistant lining tiles of ceramic, fused mineral and metallic material for highly abrasive bulk material such as coal ores and rock, said process comprising:
cleaning the back side to be coated of each of said tiles,
applying an epoxy-containing coating to the cleaned back side of said tiles, said epoxy-containing coating having a thickness of 1.5-2 mm and consisting of a resin mixture and a curing agent mixed at a ratio of 100 to 17, the curing temperature for said epoxy-containing coating being in the range of 290-310 K..degree.,
the resin mixture consisting of
36.9 parts by weight epoxy resin,
25.2 parts by weight of fine sand,
34.9 parts by weight of quartz sand powder,
1.0 parts by weight of thixotropic agent, and
2.0 parts by weight of conducting carbon stock,
dusting and rolling in the epoxy-containing coated back side of said tiles a layer of material having an affinity for cement mortar, the material being selected from the group consisting of quartz sand, lavalite and broken expanded clay, with a grain size of 1-3 mm,
said material being rolled into the epoxy-containing coated back side of said tiles at a pressure of 1 to 2 N/square mm, and
following the rolling in of said material, hardening said epoxy-containing coating, placing and fixing in position said coated tiles on the cement mortar coated supporting structure and filling up the spaces between said tiles by a pointing compound, so as to produce a high shear strength in said tiles.

### Claim 2 (depends on 1)

The process as claimed in claim 1, further comprising applying a conducting epoxy-containing coating and working the coating into any small pores in the back side of the tiles so as to completely coat the same.

### Claim 3 (depends on 1)

The process as claimed in claim 1, in which, within a time period of 20 minutes after applying the epoxy-containing coating to the back side of said tiles, dusting and rolling into the coated back side of said tiles, round-grained quartz sand having a grain size of 2 to 3 mm, and using more material than is needed for fully covering said tiles.

### Claim 4 (depends on 1)

The process as claimed in claim 1, in which, within a time period of 20 minutes after applying the epoxy-containing coating to the back side of said tiles, dusting and rolling into the coated back side of said tiles, lavalite with a grain size of 2 to 3 mm, and using more material than is needed for fully covering said tiles.

### Claim 5 (depends on 1)

The process as claimed in claim 1, in which said tiles are fixed to a cement mortar composition having plastic material additives that increase water retention, strength and adhesive properties of the mortar composition.

### Claim 6 (depends on 1)

The process as claimed in claim 1, in which said epoxy-containing coating is conductive and said material is thoroughly mixed with said epoxy-containing coating, but without inactivating the surface of said epoxy-containing coating.