Results of an investigation of the use of high-aspect-ratlo mica flakes in hardened portland cement matrices are reported. Increases in flexural strength by a factor of 2 and in fracture toughness by a factor of 4, depending on matrix porosity, are obtained by the addition of small amounts of mica.
Effect of mica addition of the microstructure of portland cement paste
โ Scribed by J.J. Beaudoin
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 353 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0008-8846
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โฆ Synopsis
In assessing the effect of mica reinforcement on cement paste microstructure, modifications to pore-size distribution, porosity, ~on-evaporable water content, and CH particle size distribution were observed for samples hydrated for up to five years. Microstructural changes were dependent on water-cement ratio and amount of mica added.
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