DataVXAdvances in Cement ResearchPaper
journal article·2021-10

The microstructure evolution of cement paste modified by cationic asphalt emulsion

Wei Li, Ziming Mao, Guodong Xu, Jinxiang Hong, Honglei Chang, Haitao Zhao, Zhicheng Liu

Advances in Cement Research· Volume 33· Issue 10
Publisher page
Source abstract

Abstract

Cationic asphalt emulsion (CAE) is a type of organic latex that could be used to modify cement hydration products in order to improve the performance of cement paste. In this study, different methodologies were used to investigate the influence of CAE on the process of cement hydration. The results showed that with an increase in the mass ratio of asphalt to cement, the setting time of the cement paste was prolonged while the compressive strength and water absorption of the cement mortar showed obvious reductions. Other techniques were also used to investigate the cement hydration process and the microstructure evolution caused by the addition of CAE, including conductivity measurements, 29Si nuclear magnetic resonance, low-field nuclear magnetic resonance, measurements of chemically bound water and field emission scanning electron microscopy. It was found that the formation of cement hydration products was delayed with an increase in CAE and the microstructure was affected by the CAE in that the pores were separated by asphalt film and the total porosity decreased.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Concrete and Cement Materials Research · Asphalt Pavement Performance Evaluation · Innovative concrete reinforcement materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Lecturer, Research Institute of Green Building Materials, College of Civil Science and Engineering, Yangzhou University, Yangzhou, China (corresponding author: )

Master student, Research Institute of Green Building Materials, College of Civil Science and Engineering, Yangzhou University, Yangzhou, China

Engineer, Jiangsu Testing Center for Quality of Construction Engineering, Nanjing, China

Professor, State Key Laboratory of High Performance Civil Engineering Materials, Nanjing, China

Lecturer, School of Qilu Transportation, Shandong University, Jinan, China

Associate Professor, College of Civil and Transportation Engineering, Hohai University, Nanjing, China

PhD, Department of Civil, Environmental and Geomatic Engineering, University College London, London, UK

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