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A mixed material and inorganic technology, applied in the field of construction waste recycling, can solve the problems of natural environment damage, consumption of large natural sand and gravel, and expensive raw materials
Inactive Publication Date: 2021-02-02
SHOUGANG ENVIRONMENTAL IND
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The preparation of ordinary inorganic mixtures requires a large amount of natural sand and gravel, which is not only expensive for raw materials, but also causes damage to the natural environment
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preparation example Construction
[0040] According to another typical embodiment of the present invention, the preparation method of inorganic compound is provided, such as figure 1 shown, including:
[0041] S1. Perform pre-wet treatment on 10-38 parts of waste tile fine aggregate and 55-86 parts of construction waste recycled aggregate, respectively, to obtain pre-wet waste tile fine aggregate and pre-wet construction waste recycled aggregate;
[0042] S2, mixing 4-7 parts of cement and 5-9 parts of water to obtain a gel;
[0043] S3. Mix the pre-wetted waste ceramic tile fine aggregate, the pre-wetted construction waste regenerated aggregate and the gel to obtain a mixture;
[0044] S4. Molding, forming and curing the mixture in sequence to obtain an inorganic mixture.
[0045] The pre-wet treatment in step S1 is a necessary step, the purpose of which is that the regenerated aggregate of construction waste has strong water absorption, and the water-cement ratio of inorganic materials can be kept stable by...
Embodiment 6
[0060] In Example 6, the total weight of the waste ceramic tile fine aggregate and the first grade aggregate, the weight ratio of the second grade aggregate and the third grade aggregate is 4:2: 4. Within the scope of the present invention, the ratio of the weight of the waste tile fine aggregate to the total weight of the waste tile fine aggregate and the first grade aggregate is less than 25%, and the prepared inorganic mixture The optimal water content is as high as 9.4%, and the residual strength of waste ceramic tile inorganic mixture after 5 freeze-thaw cycles reaches 87.5%; the water-binder ratio of the inorganic binder is high, and the structural density is low, and the frost resistance is worse than that of Example 1- 5.
[0061] Through the analysis of comparative examples and Examples 1-6, it can be seen that the residual strength ratio of the waste ceramic tile inorganic mixture after 5 freeze-thaw cycles increases significantly with the increase of the waste ceram...
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Abstract
The invention discloses an inorganic mixture and a preparation method thereof. The inorganic mixture comprises the following components in parts by weight: 10-38 parts of waste ceramic tile fine aggregate, 55-86 parts of construction waste recycled aggregate, 4-7 parts of cement and 5-9 parts of water, wherein the particle size d of the waste ceramic tile fine aggregate is larger than 0 and smaller than or equal to 5 mm; the construction waste recycled aggregate comprises first-particle-grade aggregate with a particle size d larger than 0 and smaller than or equal to 5 mm, second-particle-grade aggregate with a particle size d larger than 5 and smaller than or equal to 10 mm and third-particle-grade aggregate with a particle size d larger than 10 and smaller than or equal to 31.5 mm; and aweight ratio of the total weight of the waste ceramic tile fine aggregate and the first-particle-grade aggregate to the weight of the second-particle-grade aggregate to the weight of the third-particle-grade aggregate is (3.8-4.2): (1.8-2.2): (3.8-4.2). The inorganic mixture prepared from waste ceramic tile construction waste is excellent in mechanical property and remarkably enhanced in durability, and is a green and environment-friendly novel building material.
Description
technical field [0001] The invention relates to the technical field of construction waste recycling, in particular to an inorganic mixture and a preparation method thereof. Background technique [0002] With the continuous deepening of urbanization in our country, people's requirements for living environment are constantly improving, and indoor building construction is becoming more and more frequent. The resulting construction waste is huge and growing rapidly. Ceramic materials, including tiles and other ceramic products, make up a large proportion of construction waste. At present, most of the discarded ceramics in my country are disposed of in the open air or simply crushed and landfilled, which not only occupies land but also pollutes the environment, which does not meet the development requirements of a "waste-free city". [0003] Inorganic mixture is a general term for a class of road construction materials in transportation engineering, which is used to build the ro...
Claims
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