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Full-Text Articles in Engineering
Using Long-Term Outdoor Exposure Data To Benchmark Accelerated Durability Test Methods, R. Hooton
Using Long-Term Outdoor Exposure Data To Benchmark Accelerated Durability Test Methods, R. Hooton
International Conference on Durability of Concrete Structures
Many performance-based durability test methods adopted in various national and international standards were developed decades ago based on short-term evaluations. Most durability tests use various methods to accelerate reactions in order to obtain results in a reasonably short period of time. Then pass/fail criteria are set for these tests in standard specifications. However, the acceleration techniques used maybe overly severe, and preclude the use of concrete materials and mix designs that perform perfectly well in the field. The inclusion of long-term field tests or outdoor exposure tests can be used to verify the appropriateness of both the test methods and …
Research On Chloride Penetration Resistance Of Hybrid Fiber Reinforced Self-Compacting Concrete, Wu-Jian Long, Zhe-Ming Mai, Jin-Guang Shi, Tian-Tian Zhao, Wu-Lei Peng
Research On Chloride Penetration Resistance Of Hybrid Fiber Reinforced Self-Compacting Concrete, Wu-Jian Long, Zhe-Ming Mai, Jin-Guang Shi, Tian-Tian Zhao, Wu-Lei Peng
International Conference on Durability of Concrete Structures
The properties of chloride penetration of hybrid fiber reinforced self-compacting concrete (SCC) were investigated in this study. The results show that, the chloride penetration resistance of concrete can be improved by single incorporation either carbon or cellulose fibers. The concrete chloride diffusion coefficient DRCM of 12-cm length carbon SCC with fiber content of 1.7 kg/m3, 2.72 kg/m3, and 3.4 kg/m3 decreases by 10.3%, 25.5%, and 18.2% compared to reference concrete without any fibers, respectively. Moreover, the concrete chloride diffusion coefficient DRCM of cellulose SCC with fiber content of 1.2 kg/m3, 1.6 …
Research On Chloride Penetration Resistance Of Phosphoaluminate Cement Concrete, Wu-Jian Long, Ning Xu Han, Da Wang Li, Feng Xing, Ya-Man Zhao
Research On Chloride Penetration Resistance Of Phosphoaluminate Cement Concrete, Wu-Jian Long, Ning Xu Han, Da Wang Li, Feng Xing, Ya-Man Zhao
International Conference on Durability of Concrete Structures
The chloride penetration resistance of phosphoaluminate cement (PAC) concrete was investigated in this study. The effects of mixture proportioning parameters, including cement content, water–cement ratio (w/c), and superplasticizer content on chloride ion penetration resistance of PAC concrete were investigated by the rapid chloride migration test (RCM). The result shows that the increase of cement content and the decrease of w/c can reduce the coefficient of chloride ion penetration of PAC concrete at a certain range. Moreover, the penetration of chloride ion can be declined effectively when polycarboxylate superplasticizer is employed. The PAC concrete exhibited better chloride penetration resistance compared with …