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Neutron irradiation preventing low-hydration-heat barite concrete
The invention relates to the technical field of concrete, and particularly relates to neutron irradiation preventing low-hydration-heat barite concrete. The neutron irradiation preventing low-hydration-heat barite concrete comprises the following components in content: 163.8-168kg/m<3> of water, 200-280kg/m<3> of cement, 90-140kg/m<3> of slag powder, 9.5-10.5kg/m<3> of boron glass powder, 850-900kg/m<3>of iron ore sand, 340-360kg/m<3> of iron sand, 1558-1600kg/m<3> of barite, 300-330kg/m<3> of barite sand, 0.85-0.95kg/m<3> of polypropylene fiber and 4% to 7% of a polycarboxylate-type water reducing agent. The neutron irradiation preventing low-hydration-heat barite concrete disclosed by the invention is larger than 3600kg/m<3> in apparent density, larger than 110kg/m<3> in retained crystal water and good in neutron irradiation prevention effect; when being applied to a large-size concrete structure of which the minimum geometric dimension is larger than 1.2m, the neutron irradiation preventing low-hydration-heat barite concrete is low in hydration heat, the internal and external temperature difference is smaller than or equal to 20 DEG C, the adiabatic temperature rise is smaller than or equal to 55 DEG C, and the neutron irradiation preventing low-hydration-heat barite concrete is applicable to a large-size radiation-proof structure. The concrete can reach relatively high requirements in aspects such as retained crystal water, fluidity, cohesiveness and water retention property and has the advantages of guaranteeing the strength and the compactness and controlling the hydration heat.
Neutron irradiation preventing low-hydration-heat barite concrete
The invention relates to the technical field of concrete, and particularly relates to neutron irradiation preventing low-hydration-heat barite concrete. The neutron irradiation preventing low-hydration-heat barite concrete comprises the following components in content: 163.8-168kg/m<3> of water, 200-280kg/m<3> of cement, 90-140kg/m<3> of slag powder, 9.5-10.5kg/m<3> of boron glass powder, 850-900kg/m<3>of iron ore sand, 340-360kg/m<3> of iron sand, 1558-1600kg/m<3> of barite, 300-330kg/m<3> of barite sand, 0.85-0.95kg/m<3> of polypropylene fiber and 4% to 7% of a polycarboxylate-type water reducing agent. The neutron irradiation preventing low-hydration-heat barite concrete disclosed by the invention is larger than 3600kg/m<3> in apparent density, larger than 110kg/m<3> in retained crystal water and good in neutron irradiation prevention effect; when being applied to a large-size concrete structure of which the minimum geometric dimension is larger than 1.2m, the neutron irradiation preventing low-hydration-heat barite concrete is low in hydration heat, the internal and external temperature difference is smaller than or equal to 20 DEG C, the adiabatic temperature rise is smaller than or equal to 55 DEG C, and the neutron irradiation preventing low-hydration-heat barite concrete is applicable to a large-size radiation-proof structure. The concrete can reach relatively high requirements in aspects such as retained crystal water, fluidity, cohesiveness and water retention property and has the advantages of guaranteeing the strength and the compactness and controlling the hydration heat.
Neutron irradiation preventing low-hydration-heat barite concrete
HUANG JIAN (author) / YUAN BIN (author) / LI HONGLIANG (author) / HE CHENGYONG (author) / XIE MUJUN (author) / HE ZHIYONG (author) / LIANG WENXIONG (author) / HUANG QIUYUN (author)
2015-04-22
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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