Autoclaved phosphogypsum brick and method for preparing same

The invention discloses an autoclaved phosphogypsum brick completely prepared by industrial waste residues and a method for preparing the same and belongs to the technical field of construction materials. The autoclaved phosphogypsum brick is prepared from the following raw materials in part by weig...

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Bibliographic Details
Main Authors CHEN WEIGUI, MA GONGFU, YI ZUNLI, ZHONG XIANGANG, LUO WANLIN, PU ZHONGYUN, YANG SHOUMING
Format Patent
LanguageChinese
English
Published 11.01.2012
Subjects
ARTIFICIAL STONE
BUILDING
BUILDING MATERIALS
CEMENTS
CERAMICS
CHEMISTRY
CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
FIXED CONSTRUCTIONS
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
LIME, MAGNESIA
METALLURGY
PERFORMING OPERATIONS
REFRACTORIES
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
SLAG
STRUCTURAL ELEMENTS
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
TRANSPORTING
TREATMENT OF NATURAL STONE
WORKING CEMENT, CLAY, OR STONE
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Summary:The invention discloses an autoclaved phosphogypsum brick completely prepared by industrial waste residues and a method for preparing the same and belongs to the technical field of construction materials. The autoclaved phosphogypsum brick is prepared from the following raw materials in part by weight: 60 to 80 parts of phosphogypsum, 3.9 to 7.8 parts of neutralization modifying agent, 15 to 30 parts of activated admixture, 1 to 2 parts of cementing aggregate, 0.1 to 0.2 part of exciting agent and 10 to 15 parts of water, wherein the neutralization modifying agent is carbide slag or lime slag; the activated admixture is one or more of zinc smelting granulated slag, fluidized bed furnace fire coal slag and grate furnace fire coal slag; the cementing aggregate is construction sand; and the exciting agent is glauber salt or sodium sulfate. The compressive strength of the autoclaved phosphogypsum brick disclosed in the invention reaches 15 to 20MPa.
Bibliography:Application Number: CN20091305788