Mix proportion design method with multiple indexes for continuously reinforced concrete

ZHANG Hong-liang; CHEN Jiang; SU Man-man; LI Ning-li

Volume 14 Issue 1

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ZHANG Hong-liang, CHEN Jiang, SU Man-man, LI Ning-li. Mix proportion design method with multiple indexes for continuously reinforced concrete[J]. Journal of Traffic and Transportation Engineering, 2014, 14(1): 11-17.

Citation:

ZHANG Hong-liang, CHEN Jiang, SU Man-man, LI Ning-li. Mix proportion design method with multiple indexes for continuously reinforced concrete[J]. Journal of Traffic and Transportation Engineering, 2014, 14(1): 11-17.

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Mix proportion design method with multiple indexes for continuously reinforced concrete

1.
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China
2.
Xi'an Municipal Engineering Design and Research Institute Co., Ltd., Xi'an 710086, Shaanxi, China

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Author Bio:
ZHANG Hong-liang(1974-), male, professor, PhD, +86-29-62630056, zhliang0105@163.com
Received Date: 2013-08-18
Publish Date: 2014-02-25

Abstract

Abstract

The sensibilities of continuously reinforced concrete pavement (CRCP) performances on concrete parameters such as compressive strength, drying shrinkage strain and temperature shrinkage coefficient were analyzed by using MEPDG software. The influences of mix proportion parameters of cement content, water-cement ratio etc on pavement design parameters were studied through laboratory tests. According to balanced design theory, the mix proportion design method with multiple indexes for continuously reinforced concrete was set up. The appropriate scopes of mix proportion parameters were recommended, the regression formulae of water-cement ratio with drying shrinkage strain and temperature shrinkage coefficient were established, and the formula of flexural-tensile strength and compressive strength was also established. Analysis result indicates that compressive strength, drying shrinkage strain and temperature shrinkage coefficient are fitted to be control indices of mix proportion design method for continuously reinforced concrete. The mass content of cement slurry should be less than 22%. Nominal maximum aggregate size should be 19.0-26.5 mm. It is shown that the concrete designed according to the mix proportion design method with multiple indexes can better satisfy the performance requirement of CRCP.
- road engineering,
- continuously reinforced concrete,
- mix proportion design,
- parameter sensitivity analysis,
- compressive strength,
- drying shrinkage strain,
- temperature shrinkage coefficient

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References(18)

References

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