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Patent Searching and Data


Title:
BUILDING MATERIAL PRODUCT PREPARED USING BUILDING GYPSUM AND SLAKED LIME, AND PREPARATION METHOD FOR BUILDING MATERIAL PRODUCT
Document Type and Number:
WIPO Patent Application WO/2020/015465
Kind Code:
A1
Abstract:
A building material product prepared using building gypsum and slaked lime, and a preparation method for the building material product. By mass percentage, the product consists of 60%-90% building gypsum and 10-40% slaked lime, wherein the water-to-material ratio is 0.1-0.3. The product is prepared via a carbonation curing method, wherein the pressure for press-forming is 1-5MPa, the pressure of a carbon dioxide reaction vessel is 0.2-0.3MPa, and the carbonation curing lasts for 2-24 hours. The product is placed in the carbon dioxide curing vessel for curing, the carbonation efficiency is high, and the product has a 2-hour compressive strength of ≥20MP and a 24-hour strength of ≥30MPa. In addition, the water resistance is good, the water resistance coefficient being approximately 1.0, and the product may be used as an outdoor load-bearing wall material.

Inventors:
WANG YULI (CN)
ZHANG BO (CN)
LUO SHUQIONG (CN)
LI HAIYAN (CN)
LIU SONGHUI (CN)
Application Number:
CN2019/089118
Publication Date:
January 23, 2020
Filing Date:
May 29, 2019
Export Citation:
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Assignee:
UNIV HENAN POLYTECHNIC (CN)
International Classes:
C04B28/14; C04B111/27
Foreign References:
CN109020453A2018-12-18
CN108892467A2018-11-27
CN109053112A2018-12-21
CN103601458A2014-02-26
CN1101635A1995-04-19
JP2000086312A2000-03-28
JP2015224168A2015-12-14
CN104891933A2015-09-09
CN101357829A2009-02-04
Attorney, Agent or Firm:
BEIJING WUZHOUYANGHE & PARTNERS (CN)
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