Materials Reports  2020, Vol. 34 Issue (Z1): 246-248 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Study on the Adsorption Properties of Regenerated Micropowder toPolycarboxylic Acid Water-reducing Agents |
| ZHOU Wenjuan1,2, XIE Qian1, ZHAO Lei3
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1 College of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture;
2 Beijing Engineering Research Center for Engineering Structure and New Materials, Beijing 100044, China;
3 Shougang Environment Industry Co.,Ltd., Beijing 100041, China |
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Abstract Regenerated micropowder is a fine powder produced in the process of resource utilization of construction waste, with porous and rough surface properties. In this experiment, the specific surface area, net slurry flow and TOC content of the regenerated micropowder were determined to analyze and evaluate the effect of regenerated micropowder on the adsorption performance of polycarboxylic acid water-reducing agent. The results showed that the finer the micropowder, the stronger the adsorption of water-reducing agent; the adsorption of water-reducing agent was significant in pores from 20 nm to 100 nm.
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Published: 01 July 2020
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| Fund:This work was financially supported by the School Foundation Project of Beijing University of Civil Engineering and Architecture(FZ02 XJ 2018001704). |
| About author:: Wenjuan Zhou, associate professor and master supervisor of Beijing University of Civil Engineering and Architecture(BUCEA). Since July 2001, she has taught in Beijing University of Civil Engineering and Architecture. Served as the deputy secretary general of China Construction Waste Management and recycling Working Committee, the expert of Ready Mixed Concrete Branch of China Concrete and Cement Products Association, and the expert of Samsung Green Building Materials Evaluation Organization of China Academy of Building Sciences.The research field involves the theory and application technology of recycling construction waste, tailings and other solid waste, premixed mortar and so on. Especially around the management and resource utilization of construction waste, she presided over or mainly participated in more than 10 projects including tech- nical assistance from Beijing, national development and reform Commission, ministry of industry and information technology, national energy foundation, asian bank, etc. |
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