1560-1500 cm.-' and 1350-1300 cm.-l as the frequencies of the C-NO, valence vibrations in aromatic compounds, and comments that absorption bands in the low-frequency region are to be expected from skeletal vibrations and from deformation modes involving the R-NO, group. In an examination of fifty-si
A simple method for determination of the aggregate content in hardened concrete
โ Scribed by Ping Xie; Yan Fu; Ping Gu; J. J. Beaudoin
- Publisher
- Springer
- Year
- 1994
- Tongue
- English
- Weight
- 151 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0261-8028
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