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Daily Quiz (16)


True or false: ICRI developed the Code Requirements for Evaluation, Repair, and Rehabilitation of Concrete Buildings.


According to the JPCL article, “The Six Essential Elements of Successful Concrete Repair,” flexible, 100-percent-solids acrylic coatings applied over repaired concrete have a great track record in preventing further carbonation of the concrete.


True or false: Concrete repair materials can be created to match the appearance of the original concrete.


True or false: In general, thicker toppings over horizontal concrete require minimal profile.


What organization publishes a guide for selecting concrete repair materials?


True or false: A Bresle patch is used to treat dynamic cracks in concrete, especially in secondary containment structures around tanks.


What surface preparation method for concrete produces the largest profile?


True or false: The main reason for using citric acid to etch concrete is to create a profile coarser than that created by other etching agents.


ICRI recommends how much profile in its surface preparation requirements for polymer overlays on concrete?


True or False? Aesthetic repairs to concrete, in which the repair materials match the appearance of the original concrete, are possible only with the use of coatings.


True or false: Aesthetic repairs to concrete, in which the repair materials match the appearance of the original concrete, are possible only with the use of coatings.


According to a survey conducted by the Corps of Engineers, about what percentage of concrete repairs were rated as achieving results less than good (fair, poor, or failed).


Which of the following organizations has standards for selecting and using concrete repair materials?


True or false: The American Concrete Institute (ACI) has a guide to selecting concrete repair materials.


True or false: Both the International Concrete Repair Institute (ICRI) and the American Concrete Institute (ACI) have guides for selecting concrete repair materials.


True or false: There is an ASTM test method for comparing relative performance of concrete repair mortars in their resistance to cracking.


 
 
   

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