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Radiation-proof concrete composition, preparation method and prefabricated container
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A concrete composition and radiation protection technology, applied in shielding, nuclear engineering, reactors, etc., can solve the problems of high cost of storage containers, achieve good chemical stability, improve compactness and durability, and have good durability.
Inactive Publication Date: 2021-03-26
CHINA TRIUMPH INT ENG
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Problems solved by technology
However, the only downside is that storage containers made of fiber-reinforced concrete can have a wall thickness of up to 520mm, so storage containers are still expensive in terms of transfer and transportation
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Embodiment 1
[0043] Embodiment 1: According to 100 parts of cement, 10 parts of aggregate, 10 parts of glass microspheres, 10 parts of fiber, 5 parts of admixture, 5 parts of silica fume, 0.1 part of diatomite for expanding pores, 0.1 part of superabsorbent polymer, and add It is prepared by weight ratio of 0.1 part of agent and 20 parts of water. The performance test results are shown in Table 1.
Embodiment 2
[0044] Embodiment 2: by 100 parts of cement, 15 parts of aggregate, 30 parts of glass microspheres, 15 parts of fiber, 10 parts of admixture, 15 parts of silica fume, 2 parts of diatomite for expanding pores, 0.5 part of superabsorbent polymer, plus It is prepared by the weight ratio of 0.9 parts of agent and 25 parts of water. The performance test results are shown in Table 1.
Embodiment 3
[0045] Embodiment 3: by 100 parts of cement, 30 parts of aggregate, 40 parts of glass microspheres, 30 parts of fiber, 40 parts of admixture, 30 parts of silica fume, 4 parts of expanded diatomite, 5 parts of superabsorbent polymer, plus It is prepared by weight ratio of 10 parts of agent and 40 parts of water. The performance test results are shown in Table 1.
[0046] Table 1 embodiment performance test result
[0047]
[0048] The present invention also provides a preparation method of the above-mentioned radiation-proof concrete composition, comprising the following steps:
[0049] S1, start the mixer, put cement, aggregates, glass beads, admixtures, silica fume, porous diatomite and superabsorbent polymer into the mixer in corresponding parts by weight, and the mixing time of the mixer is 2 to 4 minutes;
[0050] S2, putting the admixture and water corresponding to the parts by weight into the mixer until the mixture in the mixer is stirred into a fluidized state;
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Abstract
The invention provides an anti-radiation concrete composition, a preparation method and a prefabricated container. The anti-radiation concrete composition comprises the following components in parts by weight: 100 parts of cement; 10-30 parts of aggregate; 10-40 parts of micro glass beads; 10-30 parts of fibers; 5-40 parts of an admixture; 5-30 parts of silica fume; 0.1-4 parts of chambering diatomite; 0.1-5 parts of a super absorbentpolymer; 0.1-10 parts of an additive; and 20-40 parts of water. The anti-radiation concrete composition is good in mechanical property, good in durability, highin thermal stability and high in radiation resistance, so that the wall thickness and weight of a nuclear waste storage container are reduced, and the radiation resistance of the nuclear waste storagecontainer is improved.
Description
technical field [0001] The invention relates to the technical field of building materials, in particular to a radiation-proof concrete composition, a preparation method and a prefabricated container. Background technique [0002] Nuclear energy is a low-carbon and environmentally friendlyclean energy. Since nuclear energy does not produce air pollutants such as sulfur dioxide, nitrogen oxides, and fine particles during power generation, and the amount of carbon dioxide produced is far lower than fossil energy power generation, it still occupies an important position and role in the future energy development of our country and the world. . [0003] With the continuous development of nuclear power generation technology, the disposal of low and medium radioactive nuclear waste has become one of the key issues to be solved urgently. The current basic view of the academic circle is that as long as 300 years of isolation are enough to make the radioactivity of nuclear waste dec...
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