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Azaibelyite shielding concrete
The invention relates to the technical field of concrete radiation shielding, and discloses ascharite shielding concrete which is prepared from, by weight, 5%-10% of cement, 5%-10% of boron particles, 20%-40% of sand, 30%-60% of gravel, 2.5%-5% of water, 0.25%-0.5% of additives, 1%-5% of fly ash and 2%-7% of mineral powder. The ascharite shielding concrete adopts an artificial admixture as a fine aggregate. Boron carbide, iron powder and polyethylene are adopted for granulation, the iron powder adjusts the density of boron polyethylene particles, the density of the boron polyethylene particles is close to that of ordinary concrete stones, the stability of boron is good, and the density of aggregate is close, so that the construction process of the boron concrete is simple. And a certain amount of hydrogen element can be introduced into polyethylene, so that the neutron protection effect is better than that of ascharite concrete. A test block mixing test is carried out on the boron polyethylene particle concrete, the particle addition amount is 3-7%, the influence on the concrete strength is small, and the strength can meet the design requirement in 28 days, so that the construction performance of the concrete is ensured, the durability of the concrete is improved, and the cracking condition of the concrete is avoided.
本发明涉及混凝土辐射屏蔽技术领域，且公开了硼镁矿屏蔽混凝土，混凝土配方按照重量组分其排列如下：水泥5％‑10％、硼颗粒5％‑10％、砂20％‑40％、碎石30％‑60％、水2.5％‑5％、外加剂0.25％‑0.5％、粉煤灰1％‑5％、矿粉2％‑7％；该硼镁矿屏蔽混凝土，采用人工掺合料作为细骨料。采用碳化硼和铁粉和聚乙烯造粒，铁粉调节硼聚乙烯颗粒密度，使硼聚乙烯颗粒密度接近普通混凝土石子，硼的稳定性较好，骨料密度接近使得硼混凝土的施工工艺较为简单。而且聚乙烯可以引入一定量的氢元素，对中子防护效果好于硼镁矿混凝土。对硼聚乙烯颗粒混凝土做了试块拌合试验，颗粒加入为3％‑7％，对混凝土强度影响较小，28天强度就可以达到设计要求，从而保证混凝土施工性能，提高混凝土耐久性，避免混凝土出现开裂情况。
Azaibelyite shielding concrete
The invention relates to the technical field of concrete radiation shielding, and discloses ascharite shielding concrete which is prepared from, by weight, 5%-10% of cement, 5%-10% of boron particles, 20%-40% of sand, 30%-60% of gravel, 2.5%-5% of water, 0.25%-0.5% of additives, 1%-5% of fly ash and 2%-7% of mineral powder. The ascharite shielding concrete adopts an artificial admixture as a fine aggregate. Boron carbide, iron powder and polyethylene are adopted for granulation, the iron powder adjusts the density of boron polyethylene particles, the density of the boron polyethylene particles is close to that of ordinary concrete stones, the stability of boron is good, and the density of aggregate is close, so that the construction process of the boron concrete is simple. And a certain amount of hydrogen element can be introduced into polyethylene, so that the neutron protection effect is better than that of ascharite concrete. A test block mixing test is carried out on the boron polyethylene particle concrete, the particle addition amount is 3-7%, the influence on the concrete strength is small, and the strength can meet the design requirement in 28 days, so that the construction performance of the concrete is ensured, the durability of the concrete is improved, and the cracking condition of the concrete is avoided.
本发明涉及混凝土辐射屏蔽技术领域，且公开了硼镁矿屏蔽混凝土，混凝土配方按照重量组分其排列如下：水泥5％‑10％、硼颗粒5％‑10％、砂20％‑40％、碎石30％‑60％、水2.5％‑5％、外加剂0.25％‑0.5％、粉煤灰1％‑5％、矿粉2％‑7％；该硼镁矿屏蔽混凝土，采用人工掺合料作为细骨料。采用碳化硼和铁粉和聚乙烯造粒，铁粉调节硼聚乙烯颗粒密度，使硼聚乙烯颗粒密度接近普通混凝土石子，硼的稳定性较好，骨料密度接近使得硼混凝土的施工工艺较为简单。而且聚乙烯可以引入一定量的氢元素，对中子防护效果好于硼镁矿混凝土。对硼聚乙烯颗粒混凝土做了试块拌合试验，颗粒加入为3％‑7％，对混凝土强度影响较小，28天强度就可以达到设计要求，从而保证混凝土施工性能，提高混凝土耐久性，避免混凝土出现开裂情况。
Azaibelyite shielding concrete
硼镁矿屏蔽混凝土
SHEN FEI (author) / FAN LIN (author) / XIA YUANGUANG (author) / YIN WEN (author)
2024-04-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| Springer Verlag | 2017
Shielding properties of concrete
| Engineering Index Backfile | 1959
Concrete for radiation shielding
Engineering Index Backfile | 1962
Technology of shielding concrete
| Engineering Index Backfile | 1963