Low-base and low-dosage swelling agent for concrete

The expanding agent for concrete is made up by using aluminium powder, anhydrous or dihydrated gypsum and calcium oxide or calcium carbide as expanding components, alum mud as early strength component, and aluminous slag or pyrophyllite as reinforcing component through the processes of proportioning...

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Bibliographische Detailangaben
Hauptverfasser:	CHAOMIN NI, SHUQING JIN, XIZUO SHEN
Format:	Patent
Sprache:	eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	The expanding agent for concrete is made up by using aluminium powder, anhydrous or dihydrated gypsum and calcium oxide or calcium carbide as expanding components, alum mud as early strength component, and aluminous slag or pyrophyllite as reinforcing component through the processes of proportioning,mixiing and ball grinding. Its alkali content is less than 0.6%,and its adulteration quantity is 4-5%,and its expanding property is excellent, so that it can effectively compensate the contraction crack of concrete early-contraction or after contraction, at the same time it can effectively preventpotential harm due to alkali-aggregate reaction of concrete.