Method for fabricating moistureproof building materials of gypsum

• Main Authors: JIANYUAN YU, ERCHANG XU
• Format: Patent
• Language: English
• Published: 26.10.2005
• Edition: 7
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF NATURAL STONE

The present invention discloses a production method of damp-proof gypsum building material. It is characterized by that before the traditional production method of gypsum building material a fly ash pretreatment procedure is added, namely, in the fly ash a small quantity of desulfurated gypsum can b...