| 摘要 |
1286798 Cementitious compositions KAO SOAP CO Ltd 20 Feb 1970 [21 Aug 1969] 8232/70 Heading C1H A dispersing agent for cementitious compositions comprises a gluconate and a salt (defined) of a high condensate of naphthalene sulphonic acid with formaldehyde. The composition can also contain accelerators, retarders, sand and gravel. Cement includes, Portland, natural, pozzuolanic and lime.
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