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Abstract:
The control principles of early-age temperature field were put forward based on the temperature stress, built-in basic temperature, built-in temperature difference and curing temperature of cement concrete pavement. The specialized early-age temperature field numerical simulation program of cement concrete pavement was used, the sensitivities and influencing characteristics of pavement early-age temperature field parameters were researched, and the effectivenesses of pavement early-age temperature field control measures were evaluated. Analysis result shows that compared with material parameters, environment construction parameters are major factors effecting pavement early-age temperature characteristics. Appropriate paving time and environment condition may change the temperature difference between the top and the bottom of slab more than 20°C. Proper curing methods and curing materials may reduce the temperature of pavement more than 12°C. Concrete paving temperature, water cement ratio and cement content significantly effect built-in basic temperature. For specific temperature control target, the sensitivities of influencing parameters are not the same, field pavement early-age temperature simulation should be combined to balance the effects of control measures.
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Journal of Traffic and Transportation Engineering
ISSN: 1671-1637
CN: 61-1369/U
Year: 2013
Issue: 5
Volume: 13
Page: 1-9
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
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