USING USA IBC CH.9

1.           Name the standard which governs all aspects of concrete; materialsused to produce concrete, concrete itself
               and testing thereof.

               What other standards are also permitted to be used in compliancetests for concrete?

2.           There are many documents for structural concrete construction usingsteel as reinforcement. List five such documents.

3.          For GroupR-3 buildings not more than three stories above grade plane, thespecified compressive strength of concrete in vertical wallsexposed to weather shall not be less than _______.

               A. 2000psi                         B. 2500psi                         C. 3000psi                         D. 3500 psi

4.           For nonstructural concrete subjected to freeze-thaw exposure classF3, the specified minimum compressive strength of concrete is______.

               A. 2000psi                         B. 2500psi                         C. 3000psi                         D. 3500 psi

5.           Under certain condition, the thickness of plain concrete footingsfor buildings of light-frame construction which are less than twostories above the grade plane may be reduced by _____.

               A. 3inches                         B. 3.5inches                      C. 4inches                        D. 6 inches

6.          Thethickness of concrete floor slabs supported directly on the groundshall not be less than ______.

               A. 3.5inches                     B. 4.5inches                      C. 5.5inches                     D. 7.5 inches

7.           Avapor retarder placed between the base course or the subgrade and aconcrete floor is not required for:

               A. Group R-3, detached unheated garages
B. Group R-3, detached and unheated storage rooms of any size
C. Group R-3, detached and unheated utility room
D. Driveways that will not be enclosed at a later date

8.           With respect to shotcrete concrete, which one of the followingis not true?

               A. Coarse aggregate size is ¾ inch or less
B. Maximum size of steel rebar is #5 in the absence of anypreconstruction test
C. When using #5 or smaller bars, minimum clearance betweenparallel bars is 2 ½ inches
D. When larger than #5 bars are permitted based on preconstructiontests, minimum clearance between the
     parallel bars equals 4 x bar diameterused

9.          During thecuring period of shotcrete concrete, a minimum temperature of______ is maintained.

               A. 32⁰F                                B. 36⁰F                                C. 40⁰F                               D. 44⁰ F

10.          Whennormal cement is used, final curing for shotcrete concrete shallcontinue for _____ after pouring.

A. 12hours                        B. 24hours                        C. 7days                            D. 28 days