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Author

Jianzhuang Xiao

Bio: Jianzhuang Xiao is an academic researcher from Tongji University. The author has contributed to research in topics: Aggregate (composite) & Materials science. The author has an hindex of 43, co-authored 283 publications receiving 7821 citations. Previous affiliations of Jianzhuang Xiao include Guangxi University & Chinese Ministry of Education.


Papers
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Journal ArticleDOI
TL;DR: In this article, the compressive strength and the stress-strain curve (SSC) of recycled aggregate concrete (RAC) with different replacement percentages of recycled coarse aggregate (RCA) are investigated experimentally.

834 citations

Journal ArticleDOI
TL;DR: A series of investigations on the mechanical property, durability, and structural performance of recycled aggregate concrete (RAC) have been carried out in the past 15 years (1996-2011) in China.

739 citations

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TL;DR: A critical review of existing studies on the effects of using sea-sand and/or seawater as raw materials of concrete on the properties of the resulting concrete, including its workability, short and long-term strength as well as durability is presented in this paper.

471 citations

Journal ArticleDOI
TL;DR: In this paper, the properties of new Interfacial Transition Zone (ITZ) and old ITZ in Recycled Aggregate Concrete (RAC) were investigated by atomic force microscopy (AFM), Scanning Electron Microscopy (SEM) and nanoindentation.
Abstract: The properties of new Interfacial Transition Zone (ITZ) and old ITZ in Recycled Aggregate Concrete (RAC) were investigated by Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM) and nanoindentation. From the SEM images, obvious voids and high concentration of calcium hydroxide can be found in both old ITZ and new ITZ in RAC. Based on the nanoindentation study, it is indicated that the thicknesses of old and new ITZs are in the range 40–50 μm and in the range 55–65 μm, respectively. It is also found that the average indentation modulus of old ITZ is 70–80% of that of old paste matrix, while the average indentation modulus of new ITZ is 80–90% of that of new paste matrix. Additionally, the influences of mix proportion, aggregate types and hydration age on the properties of ITZs in RAC are discussed in this study.

374 citations

Journal ArticleDOI
TL;DR: In this paper, three recycled coarse aggregate (RCA) replacement percentages (i.e., 0, 50% and 100%) and two types of steel rebars (plain and deformed) were considered in order to investigate the bond behavior between recycled aggregate concrete (RAC) and rebars.

258 citations


Cited by
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Journal ArticleDOI

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08 Dec 2001-BMJ
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

33,785 citations

Journal ArticleDOI
TL;DR: A brief status of recycled aggregate concrete made from recycled aggregate, summarizes and critically analyses some of the most important research findings over the past few years regarding the material aspects is given in this article.

763 citations

Journal ArticleDOI
TL;DR: A series of investigations on the mechanical property, durability, and structural performance of recycled aggregate concrete (RAC) have been carried out in the past 15 years (1996-2011) in China.

739 citations

Journal ArticleDOI
Ömer Arıöz1
TL;DR: In this article, the effects of elevated temperatures on the physical and mechanical properties of various concrete mixtures prepared by ordinary Portland cement, crushed limestone, and river gravel were investigated and the results indicated that the relative strength of concrete decreased as the exposure temperature increased.

581 citations

Journal ArticleDOI
TL;DR: In this paper, the authors present the status of construction and demolition waste generation around the world and subsequently provide a critical review of the recent studies conducted to improve the properties of recycled aggregate concrete through different supplementary materials.

544 citations