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- Title
引水隧道抗裂防水混凝土性能研究.
- Authors
龚艳琳
- Abstract
In order to study the performance of anti-cracking and waterproof concrete for diversion tunnel,based on an example of a water diversion tunnel project, the concrete seepage equation is used, and the crack moisture transmission model is established according to the environmental conditions inside and outside the tunnel and the concrete cracking and seepage conditions. On this basis, an impermeability test was carried out to study the law of water penetration in concrete cracks. In addition, in order to analyze the impact resistance and impermeability of composite concrete doped with different materials, the doped materials were steel fiber, carbon fiber and impact resistance and impermeability durability test of composite fiber concrete. The test results show that the toughness of the mixed material concrete is significantly improved compared to the basic concrete. The crack resistance of the structure is significantly enhanced. The penetration test results show that among the concrete samples with three different admixtures, the sample doped with composite fiber has the smallest permeability coefficient, which proves that the mixed fiber is better for improving the impermeability of concrete.
- Subjects
WATER tunnels; WATER diversion; CARBON fibers; FIBROUS composites; WATER laws; CRACKING of concrete; SEEPAGE
- Publication
Water Conservancy Science & Techonlogy & Economy, 2023, Vol 29, Issue 4, p141
- ISSN
1006-7175
- Publication type
Article
- DOI
10.3969/j.issn.1006-7175.2023.04.029