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WorksheetsBlocks vs Bricks
Total questions: 11
Worksheet time: 6mins
Which of the following is NOT a property of blockworks?
Faster to construct
Good fire resistance
Highly reflective to sound
Poor speed of construction
Blocks heavier than 20 kg should be lifted by a single person.
True
False
Which British standards property is specified for blocks that is not included in bricks standards?
Color
Type of aggregate used (lightweight or dense)
Price
Manufacturer
Name two types of concrete blocks shown in the image.
Cellular, Hollow
Reinforced, Precast
Lightweight, Perforated
Which of the following can be included in dense aggregate for the manufacture of concrete blocks?
Crushed granite
Limestone
Gravel
All of the above
Medium and lightweight aggregate include expanded clay, expanded blast furnace slag, sintered ash and _______.
pumice
granite
limestone
marble
Lightweight concrete blocks can be made of aircrete by the addition of which metal powder to a fine mix of sand, lime, fly ash and Portland cement?
Iron
Aluminium
Copper
Zinc
Hydrogen gas is generated in the manufacture of aircrete by the dissolution of the metal powder, giving non-interconnecting cellular structure.
True
False
Some lightweight concrete blocks with less than 7 MPa crushing strength should not be used below DPC level, except for the inner skin of cavity construction.
True
False
What does U-value measure in building elements?
U-value measures thermal transmittance, i.e., how well a building element (like a wall, roof, or window) transmits heat.
U-value measures the sound insulation properties of a building element.
U-value measures the fire resistance of a building element.
U-value measures the structural strength of a building element.
A lower U-value is better for thermal insulation in buildings.
True
False
