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Patent Searching and Data

Document Type and Number:
Japanese Patent JPH0623735
Kind Code:

PURPOSE: To control consistency by an extremely small addition amount of a water-absorbable polymeric material and to simplify the control of the whole of work by adding the water-absorbable polymeric material to concrete not hardened before hardening to absorb the moisture of the concrete not hardened to control the consistency of said concrete.

CONSTITUTION: The consistency of concrete not hardened is controlled by adding a water-absorbable polymeric material to the concrete not hardened before hardening to absorb the moisture thereof. This water-absorbable polymeric material develops water absorption 10-100 times its own wt. and about 1000 times its own wt. in the case of free water and has a characteristic absorbing water rapidly and not simply releasing water even when external pressure acts. Since consistency is controlled by adding the polymeric material having extremely high water absorbing power, a large amount of an additive is not required and proper consistency can be rapidly obtained by a small amount of the water-absorbable polymeric material.

Youda, Eiichi
Ito, Fumitaka
Application Number:
Publication Date:
February 01, 1994
Filing Date:
November 27, 1991
Export Citation:
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International Classes:
B28C7/04; B28C7/12; (IPC1-7): B28C7/12; B28C7/04
Attorney, Agent or Firm:
磯野 道造