Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Expanding agent for roof-contacted filling of underground goaf
The invention discloses an expanding agent for roof-contacted filling of underground goaf. The expanding agent is prepared from the following components in percentage by weight: 40% of Portland cementclinker, 35% of fly ash, 15% of dry lime powder, 5% of desulfurized gypsum powder, 1% of sodium chloride, 1% of sodium silicate, 1% of aluminum powder paste, 1% of sodium abietate and 1% of sodium carboxymethyl cellulose. According to the invention, 35% of the fly ash and the desulfurized gypsum powder are added to prepare the expanding agent for roof-contacted filling of the underground goaf; and compared with similar products, the expanding agent of the invention has the advantages that the effective utilization of the fly ash and the desulfurized gypsum powder meets the requirements of thenational environmental science and technology industry in China, and the fly ash seriously polluting the environment is turned into the wealth to generate economic benefits.
本发明公开了井下采空区充填接顶膨胀剂，由以下重量比的组分制成：硅酸盐水泥熟料40％、粉煤灰35％、干石灰粉15％、脱硫石膏粉5％、氯化钠1％、硅酸钠1％、铝粉膏1％、松香酸钠1％、羧甲基纤维素钠1％。本产品添加了35％的粉煤灰和脱硫石膏粉配制出了井下采空区充填接顶膨胀剂，跟同类产品相比，粉煤灰和脱硫石膏粉的有效利用符合国家环保科技产业要求，使污染环境严重的粉煤灰变为宝产生经济效益。
Expanding agent for roof-contacted filling of underground goaf
The invention discloses an expanding agent for roof-contacted filling of underground goaf. The expanding agent is prepared from the following components in percentage by weight: 40% of Portland cementclinker, 35% of fly ash, 15% of dry lime powder, 5% of desulfurized gypsum powder, 1% of sodium chloride, 1% of sodium silicate, 1% of aluminum powder paste, 1% of sodium abietate and 1% of sodium carboxymethyl cellulose. According to the invention, 35% of the fly ash and the desulfurized gypsum powder are added to prepare the expanding agent for roof-contacted filling of the underground goaf; and compared with similar products, the expanding agent of the invention has the advantages that the effective utilization of the fly ash and the desulfurized gypsum powder meets the requirements of thenational environmental science and technology industry in China, and the fly ash seriously polluting the environment is turned into the wealth to generate economic benefits.
本发明公开了井下采空区充填接顶膨胀剂，由以下重量比的组分制成：硅酸盐水泥熟料40％、粉煤灰35％、干石灰粉15％、脱硫石膏粉5％、氯化钠1％、硅酸钠1％、铝粉膏1％、松香酸钠1％、羧甲基纤维素钠1％。本产品添加了35％的粉煤灰和脱硫石膏粉配制出了井下采空区充填接顶膨胀剂，跟同类产品相比，粉煤灰和脱硫石膏粉的有效利用符合国家环保科技产业要求，使污染环境严重的粉煤灰变为宝产生经济效益。
Expanding agent for roof-contacted filling of underground goaf
井下采空区充填接顶膨胀剂
XIE MINGCHAO (Autor:in)
24.11.2020
Patent
Elektronische Ressource
Chinesisch
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