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HAZARDOUS-MATERIAL PRECAUTIONS - 14071_318
CHAPTER 14 TECHNICAL ADMINISTRATION AND SUPERVISION - 14071_323

Engineering Aid 2 - Intermediate Structural engineering guide book
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hazardous  material  disposal  facility.  Check  with  your supervisor,  safety  officer,  or  hazardous  materials representative  for  proper  procedures. Q1. Q2. Q3. Q4. Q5. Q6. QUESTIONS What  is  the  primary  purpose  of  soil-compaction testing? When  performing  a  compaction  test  on  a  sandy soil, (a) what mold should you use and (b) how many  tamper  blows  per  layer  are  required? What is the overall objective of density testing? In  the  sand-displacement  method  of  density testing, the sand is calibrated to determine its bulk density. Why must you do this before each test? The  California  bearing  ratio  (CBR)  test measures the capacity of a soil to resist what type of  force? Of the cements discussed in the TRAMAN, which one  is  most  sulphate  resistant? Q7. Q8. Q9. Q1O. Q11. Q12. Q13. Q14. Q15. When the cement paste in a concrete mix does not bond with the aggregate particles, what is the probable cause? When  a  concrete  mix  contains  an  excessive amount of silt or clay, what surface defect may occur when the concrete is placed? As related to aggregate used in concrete, define the term surface moisture. What  is  the  primary  reason  for  adding  an air-entraining agent to a concrete mix? Define  the  term  hydration  as  it  applies  to concrete. In  concrete  flexural-strength  testing,  when should you use the formula R = 3Pa/bd2? In what three ways can asphalt be liquified? To identify an unknown bituminous material what  is  the  first  field  test  that  you  should perform? To  distinguish  the  type  and  determine  the approximate  grade  of  an  unknown  asphalt cutback,  what  laboratory  test  should  you perform? 13-51







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