دانلود رایگان مقاله لاتین اثر عرض ترک در بهبود کامپوزیت سیمانی از سایت الزویر
عنوان فارسی مقاله:
اثرات همراه عرض ترک، محتوای سرباره، و تهویه قلیایی در بهبود تولید شده بطور خودبخود از کامپوزیت سیمانی مهندسی
عنوان انگلیسی مقاله:
Coupled effects of crack width, slag content, and conditioning alkalinity on autogenous healing of engineered cementitious composites
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Infrastructures, for public transportation, energy harvesting, and commercial activities, are vital to the economic well-being of a nation and life quality of the citizens. While the importance of infrastructures in economic development is well recognized, the disrepair, especially of concrete structures, is reaching an alarming level. In most developed countries, concrete maintenance and rehabilitation cost about 50% of the outlay on infrastructures [1]. While the effort in maintenance is undoubtedly important, improving the durability of concrete is the only fundamental solution in the long term. Deterioration of concrete infrastructure, such as corrosion of reinforcing steel, is associated with the formation of cracks. Reinforced concrete members could crack under structural loading, but more often due to constrained shrinkage/thermal deformations, which are practically inevitable [2]. Cracks in concrete become the pathways for various aggressive agents to penetrate, which accelerates deterioration of reinforced concrete structures; they also reduce the load capacity of some unreinforced concrete members such as plain concrete pavement [3] and concrete railway sleepers [4]. As a result, it is highly desirable to engage self-healing in concrete, i.e. the cracks being healed in natural environment without human interference. The phenomenon of self-healing in cement-based material has been known for many years. It was observed that cracks of some old concrete structures were lined with white crystalline material, which demonstrated that concrete itself is capable of sealing the cracks with certain new substance, which were chemically formed in presence of water from the rain and carbon dioxide in the air. A number of studies [5e7] investigated water permeation through cracked concrete, also noted a gradual reduction of permeability over time, which again demonstrated the capability of the cracked concrete to seal itself.
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کلمات کلیدی:
[PDF]Effects of Slag Content on Self-Healing Behavior of Engineered ... icshm2015.pratt.duke.edu/sites/.../ICSHM%20extended%20abstract_EHYang.pdf by J Qiu - Related articles Keywords: ECC, self-healing, slag content, resonant frequency recovery. Abstract ID ... Specifically, each conditioning cycle consists of one day in ... Ca(OH)2 in matrix and the alkalinity of pore solution. ... Autogenous healing of engineered. Matrix cracking repair and filling using active and passive modes for ... iopscience.iop.org/article/10.1088/0964-1726/3/2/006/meta by C Dry - 1994 - Cited by 278 - Related articles This research specifically concerns the repair or healing of cracks and filling of ... of crack width, slag content, and conditioning alkalinity on autogenous healing ... Jishen Qiu - Google Scholar Citations scholar.google.com.sg/citations?user=VdtKur8AAAAJ&hl=en Nanyang Technological University - ntu.edu.sg Surface treatment of recycled concrete aggregates through microbial ... effects of crack width, slag content, and conditioning alkalinity on autogenous healing of ... Cement and Concrete Composites - 文献云阅读 - 科学之家 www.kexuehome.com/sci/detail/sci_1911.html Recovery of mechanical properties will hence be correlated to the identified .... of crack width, slag content, and conditioning alkalinity on autogenous healing of ... Cement & concrete composites - Engineering - Terkko Navigator https://www.terkko.helsinki.fi/cement-concrete-composites Coupled effects of crack width, slag content, and conditioning alkalinity on autogenous healing of engineered cementitious composites. 204 daysCement ... Journals - Engineering - RSS Feeds to Fulltext Articles https://www.terkko.helsinki.fi/feednavigator/index.php?j=5126&journal...c... Coupled effects of crack width, slag content, and conditioning alkalinity on autogenous healing of engineered cementitious composites · Cement & concrete ...
