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Graded A+
What is the minimum thickness of coarse grout required between
steel reinforcing bars and the masonry unit? - Correct Answer -1/2"; RCMCI 6th
Edition, Section
1.13.3.5.
Welds used to splice steel reinforcing bars must conform to the provisions of -
Correct Answer -AWS D 1.4; 2006 IBC 2107.6
Mechanical connectors shall be used for splicing steel reinforcing
bars larger than - Correct Answer -#9; 2006 IBC 2107.6
When epoxy coated bars are used, lap lengths must be increased by - Correct
Answer -50%; 2006 IBC 2107.5
In masonry not exposed to earth or weather, reinforcing bars shall
,have a minimum masonry cover of not less than - Correct Answer -1 1/2"; ACI 530
For reinforced grouted-brick masonry, the minimum reinforcing bar lap length
required for Grade 40 steel is - Correct Answer -40 bar diameters; RGBM 14th
Edition, Section 5.13
C.C.R. Title 24 requires reinforcing steel spacing is to be at a
maximum of 2 feet each way and a minimum splice of - Correct Answer -48 bar
diameters; RGBM 14th Edition, page 88 5.9
When exposed to earth or weather, longitudinal wires of joint
reinforcement must be fully embedded in mortar or grout with a
minimum cover of - Correct Answer -5/8"
The maximum misalignment of bed joints form one wythe to the
other is? - Correct Answer -1 1/4"; ACI 530, S-21, Section 3.4C (4) (C)
What is the minimum thickness of fine grout required between steel
, reinforcing bars and the masonry unit? - Correct Answer -1/4"; ACI 530, S-21,
Section 3.4B (3)
When using a mechanical vibrator to consolidate grout in the cells of
hollow unit masonry, the vibrator is activated for a time period of - Correct
Answer -1 to 2 seconds; ACI 530, SC-20, section 3.5E
For grout lifts over 5 feet, what is the time period stipulated to provide sufficient
curing time to minimize potential displacement of units during the consolidation
and reconsolidation process? - Correct Answer -4 hours; ACI 530, SC-20, section
3.5D
Cleanouts are required for pours over - Correct Answer -5 ft; ACI 530, SC-20,
section 3.5D
When high lift grouting, the grout is required to be consolidated by
means of - Correct Answer -Mechanical vibration; RCMC 6th Edition, Section 6.7
Grout must be consolidated by mechanical means when the grout lift exceeds -
Correct Answer -12"; RCMC 6th Edition - section 6.8