10 Questions
What is the purpose of a screed in construction?
To create a level surface for applying floor finishes
What is the minimum thickness required for an anhydrite compound screed if a floating finish is needed?
35mm
In what scenario would you use a bonded screed?
When you need the screed to bond and harden with concrete
What is the purpose of spraying a retarder on concrete?
To slow down drying of the screed
Which type of screed is recommended to be at least 40mm thick with good bonding to the concrete base?
Semi-bonded screed
What is the purpose of reinforcing a screed with a light mesh?
Reduce crack formation
In un-bonded screed, what effect does a lower proportion of cement to sand have?
Increases rate of shrinkage
What is the typical ratio of cement to sharp sand used in a floor screed?
1:4
In the context of floor screeds, what is the purpose of a fine metal mesh or fibres like polypropylene or glass?
To provide reinforcement if required
When applying a floor screed, what are the two main methods discussed in the text?
Directly bonding to the base or laying un-bonded over insulation
Test your knowledge on ready-mixed sand and cement screeds used in construction. Learn about the benefits of factory-mixed screeds over site-mixed ones, and the features of pumpable flowing screeds. Explore different types of screeds such as anhydrite compounds.
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