New sulfur cements : Director E. R. Weidlein

• Book ID: 104129930
• Publisher: Elsevier Science
• Year: 1935
• Tongue: English
• Weight: 153 KB
• Volume: 220
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(35)90392-1

✦ Synopsis

I47

containing 2 per cent. carbon black was found to be as much as 50 per cent. greater than the strength of the same cement without the carbon black.

Also, various physical tests on concrete containing 2 per cent. dispersed black showed in every instance improved strength, this improvement being as much as 2.5 per cent. in some cases. Undoubtedly, the colloidal black besides coloring the concrete improves, in some manner, the bond between the hydrated cement and aggregate.

It may be that these aqueous dispersions of carbon black will have a considerable use for increasing the strength of all compositions such as concrete, mortars and artificial stone.

C.