Concrete applied to large-volume radiation-proof building and construction process thereof

Abstract

The invention relates to concrete applied to a large-size radiation-proof building and a construction process of the concrete. The concrete grout applied to the large-volume radiation-proof building comprises the following components: cement, sands, sandstones, barite, polymerized alcohol amine, polyhydroxy polyester, epoxy resin, and water; the construction process of the concrete applied to thelarge-volume radiation-proof building further comprises the following steps: 1), hardening a site; 2), mounting a formwork system; 3), binding reinforcing steel bars; 4), pouring concrete grout of thehorizontal structure; 5), controlling the layered pouring thickness of the concrete grout; 6), carrying out temperature control maintenance on mass concrete of all ages; 7), removing formwork framesand scaffolds in the formwork system; and 8), sealing lead plates at construction joints. According to the invention, the adiabatic temperature rise of the mass concrete can be effectively reduced, hydration heat can be reduced, the temperature difference between the inside and the outside of the concrete can be controlled, the radiation shielding performance and the crack resistance of the concrete can be improved, and the radiation protection performance effect of the structure can be achieved.

Description

technical field [0001] The present application relates to the field of concrete, in particular to a concrete used in large-volume radiation-proof buildings and its construction technology. Background technique [0002] In order to reduce the harm of rays to human body in the environment of higher radiation, people usually need to design radiation-proof buildings to shield radiation. [0003] Radiation-proof walls are generally thick and heavy. In order to reduce radiation leakage, the radiation-proof concrete walls and roof concrete must not leave construction joints, and need to be poured once. [0004] In view of the above-mentioned related technologies, the inventor believes that after pouring cement, it is easy to generate heat of hydration. When the volume of the radiation protection wall is large, the heat of hydration generated by the poured cement is high, because the heat loss inside the concrete is relatively slow. , so that the temperature inside the concrete ris...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that after pouring cement, it is easy to generate heat of hydration. When the volume of the radiation protection wall is large, the heat of hydration generated by the poured cement is high, because the heat loss inside the concrete is relatively slow. , so that the temperature inside the concrete rises faster, resulting in a large temperature difference between the inside and outside of the concrete, which makes the concrete prone to temperature cracks and shrinkage cracks and other adverse conditions, making it easy for rays to radiate to the outside of the wall through the cracks in the wall, resulting in radiation-proof walls. The effect of radiation protection becomes worse, therefore, there is still room for improvement

Images