Cement-based ultra-high performance artificial stone slab

Abstract

Cement-based ultra-high-performance artificial stone slabs, including ultra-high-performance concrete slab bodies prepared by strong pressure as one of the necessary means, are characterized in that a mesh is embedded in the slab body, and nuts are arranged on the mesh. The screw opening is exposed on the back of the plate body. The invention adopts the necessary basic materials and formula technology of ultra-high performance concrete (UHPC) as the basic requirements, and takes strong vibration, strong pressure and vacuuming as the main plate making methods. The plate produced by the present invention has the remarkable characteristics of ultra-high strength, high toughness, and high durability of ultra-high performance concrete, and is several times superior to the performance indicators of ordinary strength concrete, thereby completely overcoming the strength of the inventor's original cement-based plate Low, low density, poor demolition resistance, poor weather resistance, poor freeze-thaw resistance and other defects.

Description

technical field [0001] The invention relates to the field of architectural decoration, in particular to a cement-based ultra-high-performance artificial stone plate. Background technique [0002] Existing building walls are decorated with stone-effect plates, which mainly include natural stone plates and ceramic imitation stone plates. Natural stone plates are decorative plates made of naturally formed stone through cutting, grinding, sandblasting, etc. The ceramic imitation stone board is a board with natural stone effect by firing clay at high temperature. There are two main installation methods: wet paste and dry hang. 1. Wet paste: Wet paste is to use sticky mortar to paste the board on the wall to be decorated. It is a rigid connection. Due to the thermal expansion and contraction caused by outdoor wind pressure, rain, and temperature difference, the viscosity of the mortar will be accelerated. In addition, due to the high weight of the board, it is easy to cause the b...

AI Technical Summary

Problems solved by technology

1. Wet paste: Wet paste is to use sticky mortar to paste the board on the wall to be decorated. It is a rigid connection. Due to the thermal expansion and contraction caused by outdoor wind pressure, rain, and temperature difference, the viscosity of the mortar will be accelerated. In addition, the weight of the board is relatively large, so it is easy to cause the board to fall off, and the rigid connection is extremely poor in shock resistance. The current wet paste method is only used for decoration at the low-rise of the building, and the use of high-rise buildings is basically prohibited.

2. Dry hanging: The dry hanging of the board first needs to be installed on the wall to be decorated, and the metal dragon skeleton used to carry the board is installed. Since the naturally formed stone itself is in a solid state, the embedded parts for the external connection cannot be placed inside. Ceramics are also unable to place embedded parts because of high-temperature firing. When installing the two types of plates, only grooves or holes can be made on the side of the plates or holes can be drilled on the back of the plates, so that metal connectors can be used to connect and install the load-bearing frame. Stone and ceramics are relatively brittle. The connectors stuck in the side grooves or holes during installation need to bear the weight of the board. If the board is thin, the thin wall is easy to cause chipping and falling off; the back is punched, and the thinner board Punching holes are easy to break, and shallow holes are low in strength and poor in safety. Therefore, the thickness of dry-hanging stones is now stipulated to be no less than 25mm, and the time for ceramics to be dry-hanged is relatively short. To ensure its safety, the weight of the dry-hanging stone per square meter exceeds 65 kilograms, so that the dragon frame used to carry the plate also needs to maintain a certain strength to carry its weight, so the production and installation of the metal dragon frame is costly and heavy The cost of panel installation is also very high, and due to the heavy weight of the panel, the structure of the house needs to be enlarged to carry it, which also increases the cost of housing construction, stone mining damages the environment, and high-temperature firing of ceramics wastes energy and easily causes pollution

[0003] After searching, it was found that in order to solve the above problems, in the patent (patent number: 2014100884568) a kind of artificial slab stone production and its installation method, and in the patent (patent number: 201410694568X) a cement-based artificial slab that combines dry hanging and wet pasting In the stone installation method, the inventor made use of the characteristics of cement-based materials from liquid to solid, and pre-buried nuts and hooks that can be connected externally. After the board is solidified, the nut or hook is integrated with the board, which solves the problem of natural stone and ceramic boards. The defect of pre-buried external connectors, the board is laid with mesh and fiber, so that the board is not easy to break even in the case of thinner, thus greatly reducing the weight of the board, and solving various problems caused by the heavy weight of natural stone and ceramic boards. There are two kinds of defects. The board adopts waste stone chips of various colors and low-cost cement as the main materials. It uses the advantages of concrete forming to overcome the defects of stone mining and high-temperature firing of ceramics, which destroys the environment and wastes energy. Although the above defects are effectively solved, However, the design of the plates is produced by low-strength technology, which has disadvantages such as low strength, low density, poor weather resistance, high water absorption, and poor freeze-thaw resistance. The buried hook protrudes from the back of the board, which can easily affect the assembly line processing of the board, and the protruding hook is not easy to stack during transportation, and it is easy to cause the board to break

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