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Air-entrained concrete with lignin-containing air-entraining agent
Air-entrained concrete with lignin-containing air-entraining agent
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机译:用含木质素的引气剂引气的混凝土
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摘要
Resinous compositions comprising lignin and polymerized rosin. Use of salts of the resinous compositions as concrete air-entraining agents and asphalt emulsifiers.
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