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WorksheetsL06_Blockwork System
Total questions: 15
Worksheet time: 8mins
Which of the following is NOT one of the six IBS classifications identified by CIDB Malaysia?
Blockwork system
Formwork system
Timber framing system
Reinforced masonry system
Concrete masonry units are mainly produced from which four ingredients?
Cement, aggregate, water, admixtures
Cement, steel fibers, water, lime
Sand, lime, gypsum, bitumen
Clay, fly-ash, water, fibers
One standard concrete block has a face area roughly equal to how many conventional clay bricks?
2
4
6
8
Which option is NOT listed among the basic types of concrete blocks?
Solid block
Cellular block
Hollow block
Slotted block
“AAC” stands for ________.
Autoclaved Aerated Concrete
Advanced Aggregated Cement
Aerated Aggregate
Composite Adaptive Aluminum Concrete
The working density range for AAC blocks is approximately ____ kg/m³.
300–450
550–650
700–910
1000–1200
Using AAC instead of clay brick for internal walls reduces the dead load by roughly:
30%
45%
65%
80%
Typical wall-installation productivity is about ________ for AAC versus ________ for brickwork (m²/man-day).
10 ; 22
20–22 ; 10
30 ; 15
50–75 ; 40
Which drawback is specifically associated with AAC blocks?
High water absorption
Brittle nature requiring special fixings
Excessive weight
Low thermal insulation
Which step is NOT part of the standard block manufacturing process shown in the slides?
Mixing
Moulding
Curing
Welding
Which AAC advantage most directly leads to a 30% reduction in cooling/heating costs?
Light weight
Superior thermal insulation
Precise dimensions
Speedy construction
The blockwork system is categorised under “Innovative System” in CIDB’s list of IBS classifications.
TRUE
FALSE
A 100 mm-thick AAC wall can achieve up to 4 hours fire resistance according to BS 476 Part 22.
TRUE
FALSE
AAC blocks usually weigh more than an equivalent area of conventional clay bricks.
TRUE
FALSE
The standard manufacturing flow for concrete blocks includes mixing, moulding, curing, and cubing & storing.
TRUE
FALSE
