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Question:

What is the concrete slotting for?

What is the concrete slotting for?

Answer:

In the cooling process, the concrete has been condensed hardening, cooling shrinkage will lead to concrete cracking, and the direction of the cracks more random, seriously affecting the road quality and service life.
Therefore, usually after the concrete pouring 8 to 12 hours (must be in the concrete pavement temperature began to decrease before), spacing 4 to 6 meters to cut the shrinkage, cutting depth of about one-third of the thickness of the pavement, which can induce concrete shrinkage
Then, the road shrinkage to fill the asphalt or sealant to seal, to prevent rain water into the roadbed.

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