Research on High Ductility Cementitious Composites Improved by Water-Soluble Polymer and Micro-Fibers

Abstract:

The toughness of cement-based materials, related to the performance such as durability and strength, attracts much more attention nowadays. In this paper, the curve of bending load-deflection was adopted to research the influencesof polymers (dispersibility emulsion powder, PVA and styrene butadiene latex) and fibers (PVAF, steel fiber,basalt fiber) on basic mechanical properties and toughness. The results show that the PVAF pre-incorporate in cement motor could improve the toughness of cement motor. In addition, an environmental scanning electron microscopic analysis (ESEM) and hardness were adopted to analyze the microscope morphology of polymer films inside of hardened cementitious composites.

• Periodical: Advanced Materials Research (Volume 800)
• Pages: 284-289
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.800.284
• Online since: September 2013
• Authors: Li Ping Guo, Wen Xiao Zhang, Bo Chen, Li Hui Zhang, Lin Hong Jin
• Keywords: Cementitious Material, High Ductility, Micro-Fibers, Water-Soluble Polymer Latex

References

[1] YANG P, Research on preparation and performance of new type material for bridge deck overlays [D]. Wuhan University of Technology: School of materials physics and chemistry, 2007（in Chinese）.

[2] BAI Yong bing, Application research of epoxy asphalt concrete on steel bridge pavement [J]．Transpo World, 2008, 06: 145-146. （in Chinese）.

[3] GAO Jianguo, Preparation and construction technology of steel fiber reinforced high strength concrete [J]．Railway Survey and Design, 2006, 04: 36-40（in Chinese）.

[4] ZHANG Feng, Application of fiber in the cement concrete [J]．China Cement, 2004, 9: 70-71（in Chinese）.

[5] LI Weimin, XU Jinyu, Strengthening and toughening in basalt fiber-reinforced concrete [J]. Journal of the Chinese Ceramic Society, 2008, 04: 576-481（in Chinese）.

[6] XI Xiao-lin, FANG Man-man, Analysis of action mechanism of PVA Polymers on High Performance Cement-Based Composites [J]. Journal of Materials Science &Engineering, 2008, 02: 264-267（in Chinese）.

[7] LI Zhulong, LIANG Naixing, The Effect of Adding Styrene-Butadiene Latex on the Rigidity and Wearability of Mortar and Concrete [J]. Journal of Xi'an Highway University, 1996, 12: 38-41（in Chinese）.

[8] TENG Zhao-hui. Study on mechanism and application of redispersible emulsion powder[J]. China Adhesives, 2008, 11: 43-45（in Chinese）.