Title:
HIGH-EFFICIENCY RETARDING WATER REDUCER FOR CONCRETE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/196017
Kind Code:
A1
Abstract:
A high-efficiency retarding water reducer for concrete and a preparation method therefor. The high-efficiency retarding water reducer for concrete comprises a water reducer A, a retarder B, a retarder C, and a shrinkage reducing agent D, the ratio of the water reducer A : the retarder B : the retarder C : the shrinkage reducing agent D being 1200 : 20 : 10 : 1. The water reducer A comprises in parts by weight: 1200-1400 parts of a naphthalene sulfonate formaldehyde condensate water reducer and 400-500 parts of an amino acid salt water reducer; the retarder B comprises in parts by weight: 90-100 parts of castor oil; the retarder C comprises in parts by weight: 300-400 parts of calcium carbonate, 64-74 parts of citric acid, and 50-60 parts of sodium tripolyphosphate. The shrinkage reducing agent D comprises in parts by weight: 2-3 parts of a cellulose ether. As such, the high-efficiency retarding water reducer for concrete can be quickly dispersed in water by stirring and mixing for only a short time during use. It can be stored for a long time, does not easily coagulate, and has increased strength.
Inventors:
CHEN KAI (CN)
Application Number:
PCT/CN2017/082888
Publication Date:
November 01, 2018
Filing Date:
May 03, 2017
Export Citation:
Assignee:
CHEN KAI (CN)
International Classes:
C04B24/38
Domestic Patent References:
| WO2012175582A1 | 2012-12-27 |
Foreign References:
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| CN106145744A | 2016-11-23 | |||
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Attorney, Agent or Firm:
SBZL IP LAW OFFICE (CN)
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