Light Weight and High Density Concrete

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Across
  1. 3. Permanent structural weight acting on a building
  2. 5. Mass per unit volume of concrete
  3. 8. Ability of concrete to withstand high temperature
  4. 11. Iron-rich mineral used to increase concrete density
  5. 13. Structure containing many small air voids
  6. 17. Artificial lightweight aggregate produced by heating clay
  7. 20. Reduction in volume of concrete during drying
  8. 22. Expanded volcanic material used as lightweight aggregate
  9. 24. Iron ore aggregate used in dense concrete mixes
  10. 25. Source of radiation requiring protective concrete structures
  11. 26. Property of aggregates containing many voids
  12. 27. Property that reduces heat transfer through concrete
  13. 29. Concrete produced without fine aggregates
  14. 30. Granular material used in concrete mixtures
Down
  1. 1. Concrete used where high mass and radiation protection are required
  2. 2. Natural porous volcanic rock used in lightweight concrete
  3. 4. Concrete with significantly lower density than normal concrete
  4. 6. Lightweight concrete produced by introducing air or gas bubbles
  5. 7. Ease of mixing and placing concrete
  6. 9. Property describing heat transfer through materials
  7. 10. Dense aggregate commonly used in radiation shielding concrete
  8. 12. Iron oxide mineral used as heavyweight aggregate
  9. 14. Expanded mineral used for insulation concrete
  10. 15. Volcanic aggregate used in lightweight concrete production
  11. 16. Heavy material used to add weight in structures
  12. 18. Nuclear particles requiring shielding in reactors
  13. 19. High energy radiation requiring dense shielding materials
  14. 21. Separation of heavy particles during mixing
  15. 23. Nuclear facility where high density concrete is used for protection
  16. 28. Industrial by-product used as lightweight aggregate