Test your basic knowledge |

Civil Engineering Materials

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. High Early Strength- fast track projects - we want low set time






2. By vibrating - otherwise rock pockets occure -






3. Cement+water






4. Volcanic - hardening and crystal molten material ex- granite






5. Trapped air - reduces strength - ups permeabiity






6. Stop and reactivate hydration process






7. Good stability






8. To improve workability for fresh concrete






9. Loss of water from paste (evap) - 1% vol lowers - cracking - prevent by water loss control -






10. Bending moment - no shear in middle third






11. From chemicals or excessive drying






12. Low Heat of Hydration- for careful control of heat - dams






13. Distributes cement grains - cement becomes more mushy -






14. Sometimes worse






15. Ups set time






16. makes it mushier because cement grains more distributed






17. Tricalcium silicate (C3S) - dicdalcium silicate (C2S) - tricalcium aluminate (C3A) - tetracalcium aluminoferrite (C4AF)






18. Crush clinker into super fine powder






19. Moderate Sulfate Resistance- large piers






20. Cement+course aggregate






21. Heavy traffic






22. Water beyond SSD condition






23. Nonpotable/potable >90% - the acceptable






24. To increase stability of materials - reduce rutting






25. Ponding/immersion - spraying/fogging - wet coverings -impervious papers/plastic sheets - membrane forming - steam - insulating blankets/covers - electric/hot oil/ infrared -






26. Freeze-thaw cycles - bad curing or too much water






27. Source of hotgases - biggest piece of moving equipment






28. B/c of trucks over time






29. 94 lbs






30. Near surface water is cause






31. misplaced joints - more specific- spalling- breaking away of edges






32. Calcareous (calcium) - argillaceous (aluminum) - iron oxide (iron) - gypsum (silicon)






33. For early strength gain






34. Sum of cumul % retained / 100 - higher= bigger particle sizes= smaller amount of agg needed






35. Corner was hotter on top than bottom - it warped and lifted - pressure makes corner crack -






36. Heat and pressure ex- marble - quaertzile






37. Stratified structure - disintegrated exitisting rocks - inorganice remains of marine animals - ex- limestone






38. Water used for hydration - water beyond SSD - min- .22-.25 - typical- .4-.5 (.44) - lower WC ratio = more strength -






39. Trim subgrade - moisten subgrade - compact (use vibratory roller) - do NOT deposit frozen subgrade or disturb it - uniform - NO water added in front of paver -






40. Low stability






41. Space between layers in CSH - water in interparticle space held by hydrogen bonds






42. Greater =less free water needed to get a given slump






43. Consolidation - strike off - depress agg - darby or bull float - (TIME) - edging - jointing - floating - (TIME) - texturing - curing






44. Cement paste has bulk SG< cement particles






45. Delay initial set - for long hauls or unusual placement






46. Do NOT dump in separate piles - deposit in large piles -






47. Ups capilary voids - lowers strength






48. Normal- for general work






49. For continued hydration and strength gains - otherwise only 50% strength gained - ups durability and abrasion resistance - prevent shrinkage cracking -






50. Air bubbles for sapce for water to expand when freezes







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests