Research of Performance and Durability of long span prestress concrete box Girder Bridge of gravel concrete
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Bibliographic Details
| Author(s): |
Fang-Wen Weng
(The Second Harbor Engineering Company, Hubei , China)
Mingqiang Qing (The Second Harbor Engineering Company, Hubei , China) Can Huang (The Second Harbor Engineering Company, Hubei , China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Conference: Structural Engineering: Providing Solutions to Global Challenges, Geneva, Switzerland, September 2015 | ||||
| Published in: | IABSE Conference Geneva 2015 | ||||
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| Page(s): | 120-123 | ||||
| Total no. of pages: | 4 | ||||
| Year: | 2015 | ||||
| DOI: | 10.2749/222137815818356972 | ||||
| Abstract: |
The Zemun-Borca Bridge Project as the basis, based on the nearest drawn, resource conservation and environmental protection principles, and effective use of the bridge located at the gravel resources. This paper carry out a comparative study with crushed stone concrete in the material properties of pebbles from the mix, durability, creep characteristics. Studies have shown that, compared to the same mix, working performance of gravel concrete is better than rubble concrete, but the intensity is lower than rubble concrete, natural gravel can be formulated to meet the engineering application of concrete mix. In the same compression under the conditions of strength, creep coefficient is slightly larger than rubble concrete with 5d, 7d, 14d and 28d loading age. With the extension of age, the difference between the two is narrowing. |
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| Keywords: |
creep gravel concrete rubble concrete working performance concrete mixture ratio
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