Like concrete filling material suitable for road large cavity goaf treatment

The invention discloses a like concrete filling material suitable for road large cavity goaf treatment. The material comprises 32.5 grade slag Portland cement, fly ash, medium sand, gangue and a high efficiency water reducer, and a ratio of water to cement to fly ash to medium sand to gangue is 12.4...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG XIAO, SUI LAICAI, HAO WEIGUO, XUE CHUNMEI, WU JUN, WU TIANJUN, WEI YIQIANG, SU PEIREN
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 invention discloses a like concrete filling material suitable for road large cavity goaf treatment. The material comprises 32.5 grade slag Portland cement, fly ash, medium sand, gangue and a high efficiency water reducer, and a ratio of water to cement to fly ash to medium sand to gangue is 12.4:3.2:12.05:12.05:60.3. The density of like concrete is greater than the density of water, so underground water residual in large cavities is discharged; and the like concrete has a high concretion rate, so large goaf is filled and densified to realize no future troubles. Ingredients of the like concrete are changed to valuables, so the like concrete filling material saves resources, protects environment, can meet pumping transmission demands, and has very good economic benefits and social values.