Blinding Flashcards
1
Q
Why do we use blinding above the hardcore layer?
A
To prevent the hardcore penetrating the DPM
2
Q
What depth will blinding be?
A
Will almost always be 50mm thick
3
Q
What is a second purpose of blinding other than to protect the DPM from being punctured?
A
To prevent the wet concrete running down between the lumps of broken brick/concrete (hardcore) as this would make it easier for water to to seep up through the hardcore and would be wasteful of concrete
