Behind HIPERPAV

Early Age Behavior

Why is HIPERPAV Important?

The service life of concrete pavements is highly dependent upon their early-age behavior. Portland cement concrete pavements (PCCP) are significantly affected by temperature and moisture changes during the first 72 hours following placement.

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Stresses in the concrete build up primarily due to the combined effects of curling and warping and restraint to axial movements at the slab-subbase interface. These stresses may be of sufficient magnitude to cause cracking because concrete strength is relatively low during this “early-age” period.

Monitoring of the stresses during this time is extremely important since problems during this early-age may lead to loss of pavement performance in the long term. A pavement designed for a life of 30-years, for example, may only last 10-years if problems occur during this critical early-age period. Conversely, if no problems occur during this period, the pavement may exceed the intended design life, resulting in an overall cost-savings.

What Can HIPERPAV Consider?

With HIPERPAV, you can input everything you know about a concrete project – mix design, joint design, subbase type, curing method, weather conditions, sawcut timing, everything – and accurately predict the stress and strength behavior of the concrete over the first critical 72 hours.

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