Modified cementitious materials incorporating Al2O3 and SiO2 nanoparticle reinforcements: An experimental investigation

Chunqing Li; Yapeng Cao; Guoyu Li; Qingguo Liang; Xuyang Wu; Gang Wu; Fei Wang; Qingsong Du; Yapeng Wang; Shunshun Qi; Liyun Tang; Jianwei Yue; Hang Zhang

Case Studies in Construction Materials (Dec 2023)

Modified cementitious materials incorporating Al2O3 and SiO2 nanoparticle reinforcements: An experimental investigation

Chunqing Li,
Yapeng Cao,
Guoyu Li,
Qingguo Liang,
Xuyang Wu,
Gang Wu,
Fei Wang,
Qingsong Du,
Yapeng Wang,
Shunshun Qi,
Liyun Tang,
Jianwei Yue,
Hang Zhang

Affiliations

Chunqing Li: State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China; Da Xing’anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Jagdaqi 165000, China
Yapeng Cao: State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China; Da Xing’anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Jagdaqi 165000, China; Corresponding authors at: State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China.
Guoyu Li: State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China; Da Xing’anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Jagdaqi 165000, China; Corresponding authors at: State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China.
Qingguo Liang: School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
Xuyang Wu: State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
Gang Wu: State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China; Da Xing’anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Jagdaqi 165000, China
Fei Wang: Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang 212013, China
Qingsong Du: State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China; Da Xing’anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Jagdaqi 165000, China
Yapeng Wang: State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China; Da Xing’anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Jagdaqi 165000, China
Shunshun Qi: State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China; Da Xing’anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Jagdaqi 165000, China
Liyun Tang: Architecture and Civil Engineering School, Xi’an University of Science and Technology, Xi’an 710054, China
Jianwei Yue: School of Civil Engineering and Architecture, Henan University, Kaifeng 475001, China
Hang Zhang: Electric Power Research Institute, State Grid Heilongjiang Electric Power Company Limited, Harbin 150030, China

Journal volume & issue: Vol. 19
p. e02542

Abstract

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This research presents the improvement effect and influence mechanism of nano-Al2O3 (NA) and nano-SiO2 (NS) on concrete performance from the macro and micro scales. The crucial parameter investigated in this research is the various concentrations of the nano-reinforcement 1, 2, and 3 wt% of cement, the results show that NA and NS can improve the compressive strength and resistance to chloride penetration (RCP) ability of concrete, the amount of 1 and 2 wt% exhibiting the best effect, especially in terms of compressive strength, which can be increased by more than 20 %. As nanoscale particles, NA and NS can fill the capillary pores in concrete and can also promote the cement hydration to produce more C-S-H gel, thereby reducing the total porosity of concrete by about 2 %, making its internal pores and cracks less and the microstructure denser. Based on the correlation analysis, the most important factors affecting the compressive strength and RCP ability of concrete were found, and the linear relationship equation between compressive strength and RCP ability was obtained.

Published in Case Studies in Construction Materials

ISSN: 2214-5095 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/case-studies-in-construction-materials

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