Issues concerning coal mining application in civil and water engineering in a synthetic way. The properties of the material have been characterized and examples of practical applications are given. 98lO2091 Diffusion of oxygen into pitch
98/02125 Properties of cement containing German lignite fly ashes : Dietz, S. et al. Proc. Int. Congr. Chem. Cem., 10th, 1997, 3, 3ii087, 10pp. Edited by Justnes, H., Amarkai AB, Goeteborg, Sweden
- Publisher
- Elsevier Science
- Year
- 1998
- Weight
- 208 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0140-6701
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โฆ Synopsis
04 By-products related to fuels suitable for use as the feedstock. Adhesive resin is produced from the entire good strength contributions.
The fly ash-cement mixes also had a good tar product by shifting the pH from acidic to basic with NaOH and stability of volume and low expansion rates. Up to lO-15% fly ash content, combining and heating the resulting resole with phenol and formaldehyde, by mass, displayed no negative effects on the fly ash-cement properties due similarly to conventional resins. to fly ash addition in most of the mixes.
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suitable for use as the feedstock. Adhesive resin is produced from the entire good strength contributions. The fly ash-cement mixes also had a good tar product by shifting the pH from acidic to basic with NaOH and stability of volume and low expansion rates. Up to lO-15% fly ash content, combining
04 By-products related to fuels 9ai02104 ' ' The reactivity of coal-derived residues varied widely towards breakdown into lower boiling products. High catalyst activity and solubilization appeared necessary for the conversion of these materials.