Water-resistant Gypsum Compositions with Man-made Modifiers
| Autor: | Alexander Buryanov, G.N. Pervyshin, H.-B. Fischer, Jadvyga Keriene, Grigory Yakovlev, A.F. Gordina, Irina Polyanskikh, N.R. Rachimova |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Gypsum Water resistance 0211 other engineering and technologies chemistry.chemical_element 02 engineering and technology General Medicine Carbon nanotube engineering.material Calcium 021001 nanoscience & nanotechnology Microstructure Amorphous solid law.invention Compressive strength chemistry law 021105 building & construction engineering Composite material 0210 nano-technology Softening Engineering(all) |
| Zdroj: | Procedia Engineering. 172:867-874 |
| ISSN: | 1877-7058 |
| DOI: | 10.1016/j.proeng.2017.02.087 |
| Popis: | The work has studied the structure and properties of gypsum compositions modified with the manmade modifier based on metallurgical dust and multi-walled carbon nanotubes. The results show that changing the structure of solid gypsum leads to the increase in bending and compressive strength by 70,5% and 138% correspondingly, the water resistance increasing and the softening factor reaching 0,85. Modifying gypsum composition with complex additive leads to the formation of amorphous structures based on calcium hydrosilicates on the surface of primary gypsum crystallohydrates that bond gypsum crystals and reduce the access of water. |
| Databáze: | OpenAIRE |
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