Centro de Documentación de Fundación MAPFRE - Effect of wetting agents on water penetration into asbestos insulations

MAP20071020366

Effect of wetting agents on water penetration into asbestos insulations / Stephen K. Brown

Sumario: The effect of wetting agents on the penetration of water into asbestos insulations has been investigated in a laboratory test. The insulations behaved like porous bodies with capillary structures and exhibited large differences in wetting behavior with water. The addition of a wetting agent generally caused no change or reduction in the rate of wetting. Only amosite-calcium silicate showed improved wetting with some surfactants, possibly because of a very high contact angle with water. Use of heated water, at 60ºC, resulted in a significant but moderate increase in wetting rate for all insulations and is considered the most effective practical aid to wetting

En: American Industrial Hygiene Association journal. - Akron, Ohio. - Vol. 51, nº 7, July 1990 ; p. 384-389

1. Higiene industrial . 2. Contaminantes químicos . 3. Amianto . 4. Aislamiento . 5. Materiales aislantes . 6. Humidificación . 7. Humedad . I. Título. II. Título: American Industrial Hygiene Association journal.