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Method for preparing ceramic wall and floor tile by utilizing construction waste
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A technology of wall and floor tiles and ceramics, which is applied in the field of resource utilization of construction waste, can solve the problems of low added value, low strength, and difficulty in widespread promotion, and achieve easy industrial promotion, low water absorption of products, and good antifouling performance Effect
Active Publication Date: 2012-07-18
GUANGZHOU SHIZHENG ENVIRONMENT CO LTD
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Problems solved by technology
Because these bricks have not been fired, a large amount of cement or phosphogypsum is used to solidify them, the product has high water absorption (poor antifouling performance) and low strength, so it cannot be applied to interior and exterior wall tiles and floor tiles (in a strict sense, they are None of them are ceramics), and can only be used for low value-added blocks, road bricks, square bricks and mortar, cement admixtures, etc., and the utilization rate of construction waste is low
[0005] In addition, the reports of using construction waste as part of the raw material to burn into bricks include: "A method for producing new building materials using construction waste and industrial waste residue" (CN.200310110163.7), "Coalgangue and construction waste hollow ceramic insulation board and its production method" (CN.201010507514.8), etc. Although they have been fired, the products still have high water absorption (poor antifouling performance) and low strength, and cannot be applied to interior and exterior wall and floor tiles, and construction waste is used rate is also low (the latter can reach up to 30%)
[0006] The existing technology has problems such as low utilization rate of construction waste, high water absorption rate of the product (poor antifouling performance), low strength, and low added value. It is not suitable for the preparation of ceramic interior and exterior wall tiles and floor tiles. Requirements for resource utilization of discharged construction waste
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Embodiment 1
[0017] (1) In terms of parts by mass, take 10 parts of construction waste powder, 90 parts of ceramic clay, 2 parts of quartz, and 5 parts of feldspar; mix the above raw materials, add 100 parts of water, and after ball milling and spray granulation, pass 30 mesh sieve to obtain uniform powder.
[0018] (2) The above-mentioned powder is pressed under 100 MPa into a floor tile body.
[0019] (3) The above green body was fired at 1080° C. for 30 minutes.
[0022] (1) In terms of parts by mass, weigh 100 parts of construction waste powder, 10 parts of quartz, and 90 parts of ceramic waste; mix the above raw materials, and pass through an 80-mesh sieve after stirring to obtain a uniform powder.
[0023] (2) Press the above-mentioned powder under 10 MPa to form an exterior wall brick body.
[0024] (3) The above green body was fired at 1260° C. for 3 minutes.
[0027] (1) In terms of parts by mass, take 50 parts of construction waste powder, 50 parts of ceramic clay, and 15 parts of feldspar; mix the above raw materials, add 50 parts of water, and pass through a 30-mesh sieve after ball milling and spray granulation. A homogeneous powder was obtained.
[0028] (2) The above-mentioned powder is pressed under 200 MPa to form an interior wall brick body.
[0029] (3) The above green body was fired at 900° C. for 420 minutes.
[0030] After firing, the water absorption rate of the sample is 3.0%, the compressive strength is 15MPa, and the bulk density is 1580kg / m 3 , The thermal conductivity is 0.76w / m.k, which is suitable for ceramic interior wall tiles of buildings.
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Abstract
The invention discloses a method for preparing a ceramic wall and floor tile by utilizing construction waste. The wall and floor tile is lower than 3.0 percent in water absorption and is higher than 15MPa in compression strength. According to the method for preparing the ceramic wall and floor tile by utilizing the construction waste, a ceramic glazed tile, a light tile (including a light insulating tile), an ultra-thin tile, a polished tile and the like can be directly prepared by taking the construction waste as a raw material by utilizing a traditional ceramic interior and exterior wall tile or floor tile production line. By adopting the technology provided by the invention, the utilization ratio of the construction waste is high, the water absorption of the wall and floor tile is low, the antifouling property is good, the strength is high and industrialization popularization is easy.
Description
technical field [0001] The invention relates to the field of resource utilization of construction waste, in particular to a method for preparing ceramic interior and exterior wall tiles and floor tiles with low water absorption, good antifouling performance and high strength by using construction waste, that is, construction waste. Background technique [0002] With the development of economy and urbanization, the speed of renovation and demolition of old buildings, construction of new buildings and infrastructure construction is also accelerating. According to statistics, my country demolishes 400 million square meters of old buildings every year, generating about 500 million tons of construction waste; 2 billion square meters of new buildings are built every year, generating more than 100 million tons of construction waste; 40 million tons of garbage. At present, the annual discharge of construction waste in my country has exceeded 640 million tons. [0003] If such a lar...
Claims
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Application Information
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