
(from the article `environmental works`) Distribution pipes are made of asbestos cement, cast iron, ductile iron, plastic, reinforced concrete, or steel. Although not as strong as iron, ...
Found on
http://www.britannica.com/eb/a-z/a/109

Asbestos cement is a mix of 15% asbestos and 85% cement, formerly much used to make prefabricated building units.
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http://www.probertencyclopaedia.com/browse/TA.HTM

Cement with 10-15% asbestos fibre used as reinforcement, often used in the past for roofing sheets, gutter, roof tiles. It is fragile and will not bear heavy weights. Hazardous fibres may be released if cut, drilled or otherwise broken.
Found on
https://www.diydata.com/general_building/building_glossary.php

a compound of asbestos fiber and Portland cement formerly used for various nonstructural building purposes.
Found on
https://www.infoplease.com/dictionary/asbestos-cement
No exact match found.