Silicate containing agent and cement surface modified with said

Compositions: coating or plastic – Coating or plastic compositions – Saturating or indurating

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10628724, 10628734, 427140, C04B 3100

Patent

active

045212490

ABSTRACT:
An agent and method for modifying a surface layer of hardened cement structures or substrates with use of the agent which comprises in a specified ratio of an alkali silicate solution and a sodium naphthalenesulfonate-formaldehyde condensate. Said agent has an excellent stability and a remarkable permeability into the cement structure to form a deeper strengthened surface layer thereon.

REFERENCES:
patent: 2709661 (1955-05-01), Dietz
patent: 4006030 (1977-02-01), Yoshida et al.
patent: 4345944 (1982-08-01), Kazama et al.
patent: 4443496 (1984-04-01), Obitsu

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