Abstract
There are numerous chemical agents to achieve the specified air entrainment system. Generally, these are organic chemicals which are broadly classified as soaps and detergents. One of the best known chemical agents of this type is known in the art as Vinsol resin, manufactured by Hercules, Inc., which is a wood resin salt and is the standard against which other air-entraining agents are tested under ASTM C-233.
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References
Paul F. Gutmann and D. R Lane, US Patent No. 4,689,083 (25 August, 1987).
D. Rodriguez, Professional Services, Inc., Report No. 2571, 1987 (Unpublished).
W. L. Dolch, June 1987 (Unpublished).
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Gutmann, P.F. Bubble Characteristics as they Pertain to Compressive Strength and Freeze–Thaw Durability. MRS Online Proceedings Library 114, 271 (1987). https://doi.org/10.1557/PROC-114-271
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DOI: https://doi.org/10.1557/PROC-114-271