Microstructural analysis of recycled concrete using X-ray microtomography
TLDR
In this article, an investigation of the recycled concrete microstructure using synchrotron microtomography (μCT) at the Advanced Light Source combined with Scanning Electron Microscopy analysis was performed.About:
This article is published in Cement and Concrete Research.The article was published on 2016-03-01 and is currently open access. It has received 131 citations till now. The article focuses on the topics: Saturated-surface-dry.read more
Citations
More filters
Journal ArticleDOI
A critical review and assessment for usage of recycled aggregate as sustainable construction material
TL;DR: In this paper, the authors provide an account of properties of concrete prepared with recycled aggregate, analyses the important findings on Recycled Aggregate Concrete (RAC) in the recent time and discusses the suitability of its usage in construction.
Journal ArticleDOI
Properties of recycled concrete aggregate and their influence in new concrete production
TL;DR: In this paper, the authors present a review of the potential and challenge of using recycled concrete aggregate (RCA) as the substitute for natural aggregate (NA) in concrete mixtures.
Journal ArticleDOI
Influence of the incorporation of recycled coarse aggregate on water absorption and chloride penetration into concrete
TL;DR: In this article, the effect of the incorporation of coarse recycled concrete aggregates (RCAs) on the durability of cement-based cementitious materials was experimentally investigated, and the results indicate that the incorporation generally decreases the compressive strength, and inversely increases water and chloride transport coefficient compared to those of the control concrete.
Journal ArticleDOI
Methods for improving the microstructure of recycled concrete aggregate: A review
Ruijun Wang,Ningning Yu,Yang Li +2 more
TL;DR: In this article, the authors summarized the principles, advantages and disadvantages of the methods for improving the microstructure of RCA from four aspects, such as removal of attached mortar in the RCA, surface coating on RCA and different mixing methods and CaCO3 precipitation.
Journal ArticleDOI
Use of fine recycled concrete aggregates in concrete: A critical review
TL;DR: In this article, the state-of-the-art of the fine recycled concrete aggregates (fRCA), focusing on their physical and chemical properties, engineering properties and durability of concretes with fRCA, is discussed.
References
More filters
Journal ArticleDOI
Influence of Amount of Recycled Coarse Aggregates and Production Process on Properties of Recycled Aggregate Concrete
TL;DR: In this paper, four different recycled aggregate concretes were produced; made with 0, 25, 50, 50 and 100% of recycled coarse aggregates, respectively, in order to achieve the same compressive strengths.
Journal ArticleDOI
Study on the influence of attached mortar content on the properties of recycled concrete aggregate
TL;DR: In this article, the authors analyzed data from experimental works carried out in CEDEX and also from literature review to obtain experimental relationships between the attached mortar content and other recycled aggregate properties, covering a wide range of different aggregates qualities.
Journal ArticleDOI
Effect of microstructure of ITZ on compressive strength of concrete prepared with recycled aggregates
TL;DR: In this article, the influence of these aggregates (recycled and natural) on the microstructure and compressive strength of the new concrete were studied, and the results are explained by the differences in porosity and pore structure of the two types of aggregates, and possible interactions between the aggregates and the cement paste.
Journal ArticleDOI
Three-Dimensional X-ray Microtomography
TL;DR: The new technique of x-ray microtomography nondestructively generates three-dimensional maps of the x-rays attenuation coefficient inside small samples with approximately 1 percent accuracy and with resolution approaching 1 micrometer.
Journal ArticleDOI
Microstructural analysis of recycled aggregate concrete produced from two-stage mixing approach
TL;DR: In this paper, a two-stage mixing approach (TSMA) is proposed to improve the compressive strength for recycled aggregate concrete and hence lower its strength variability, which can fill up some pores and cracks, resulting in a denser concrete, an improved interfacial zone around recycled aggregate and thus a higher strength when compared with the traditional mixing approach.