This standard stimulates the natural radionuclides in building materials tile for wall of radium - 226 and thorium - 232, k - 40 radioactive specific activity limit and test method.This standard applies to build all kinds of buildings used by the inorganic nonmetal materials, including mineral building materials industrial waste residue.
2, terms and definitions of the following term nuclear definition is applicable to this standard.
2.1, building materials building materials
This standard of building materials is to point to: used to build all kinds of buildings used by the inorganic nonmetallic materials.This standard building materials can be divided into: building materials and decoration materials.
2.1.1, building main body material is the main materials for building
Used to build buildings used by the principal part of the project construction materials.Including: cement and concrete products, concrete, brick, tile, prefabricated concrete, brick, wall insulation materials, industrial waste residue, mixed building materials industrial waste residue, and various kinds of new wall materials, etc.
2.1.2, decoration materials decorative materials
Used for indoor and outdoor building facing with building material.Including: granite, building ceramics, gypsum products, condole top material, paint and other new facing material, etc.
2.2 building, building
For human life, work, production or other activities of a house or indoor Spaces.According to different buildings use, this standard will be divided into two categories, civil buildings and industrial buildings.
2.2.1, civil building civil building
For human living, working, learning, entertainment, shopping and other buildings.This standard civil buildings can be divided into the following two categories:
Ⅰ civil construction, such as residential, senile apartment, nurseries, hospitals and schools, etc
Ⅱ civil construction, such as shopping malls, stadiums, bookstore, hotel, office building, library, cultural entertainment, exhibition hall and public transportation waiting room, etc.
2.2.2, industrial building industrial building
For human production activities of buildings.Such as production workshop, packing workshop, maintenance workshop and warehouse.
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