Manville process

Among several production methods the most commonly used were the so-called Hatschek, Magnani and Manville processes. The asbestos fibre cement elements were also produced by shotcreting. More details on the production methods may be found, among other sources, in Hannant (1978) and in Bentur and Mindess (1990). 

Celite o Trademark for diatomaceous earth and a line of produc ts processed from it by Johns-Manville. Celites occur at Lompoc,... 

The diatomaceous earths are skeletal remains of tiny aquatic plants deposited centuries ago while the perlites are processed from volcanic rock. Typical properties of the diatomaceous earths manufactured by Johns-Manville are presented in Table 2. 

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