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Experimental Study on Cement-Based Materials Modified by Nano-Zinc Oxide and Nano-Zirconia Based on Response Surface
Hongyin Hu1, Fufei Wu1, Jiao Chen2
1School of Materials and Architectural Engineering, Guizhou Normal University, Guiyang 550025, China.
Materials (Basel, Switzerland)
|April 24, 2025
Summary
Nano-zinc oxide and nano-zirconia enhance cement performance, significantly boosting compressive strength. These nanomaterials improve mechanical properties, durability, and workability of cement-based materials.
Area of Science:
- Materials Science
- Civil Engineering
- Nanotechnology
Background:
- Replacing cement with nanomaterials is a key strategy to improve cement-based material performance.
- Nanomaterials offer unique microscopic properties beneficial for material enhancement.
Purpose of the Study:
- To investigate the effects of nano-zinc oxide and nano-zirconia substitution on cement-based material properties.
- To analyze the influence of varying substitution levels and water-cement ratios on material performance under different conditions.
Main Methods:
- Response surface analysis was employed for experimental design.
- Tests were conducted on mechanical properties, water saturation, shrinkage, and high-temperature calcination.
Main Results:
- Compressive strength increased by up to 88.17% (lower limit) and 15.14% (upper limit) with nano-material substitution.
- Lower compressive strength was observed with 0.4-0.6% nano-zinc oxide due to reduced CSH content.
- Water saturation coefficient decreased with age, and was low in high-performance concrete.
- Nano-zirconia significantly affected mass loss in autogenous and drying shrinkage; high mass loss occurred with 0.4-0.8% nano-zinc oxide.
Conclusions:
- Nanomaterials like nano-zinc oxide and nano-zirconia can significantly enhance the mechanical properties and durability of cement-based materials.
- Optimizing the substitution amount of nanomaterials and the water-cement ratio is crucial for achieving desired performance characteristics.
- The study highlights the potential of nanomaterials to improve various aspects of cement-based materials, including performance and workability.
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