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Question:

Why the new cement road to be cut with a cutting machine

Why the new cement road to be cut with a cutting machine

Answer:

Concrete condensation hardening process, cement hydration to release a lot of heat, resulting in concrete temperature rise; most of the cement hydration reaction is over, the concrete temperature began to decline.
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
The cracks are generated along the cutting seam to prevent random cracks.
Then, the road shrinkage to fill the asphalt or sealant to seal, to prevent rain water into the roadbed.

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