A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Clinker-free fly ash composite cementing material, preparation method thereof and coal mine filling paste
The invention provides a clinker-free fly ash composite cementing material, which comprises the following components in percentage by mass: 40-70% of fly ash, 10-20% of fly ash, 10-20% of fly ash, 10-20% of fly ash, 10-20% of fly ash, and 10-20% of fly ash. 10-40% of water-quenched slag; 5-18% of desulfurized gypsum; 3-15% of quick lime; 0.2 to 1.5% of a composite activator; 0.01%-0.5% of an auxiliary additive; the composite exciting agent comprises an alkaline exciting agent and a salt exciting agent. According to the invention, industrial solid waste fly ash and water-quenched slag are used as main raw materials, the fly ash and the water-quenched slag have similar excitation activity, the fly ash and the water-quenched slag are matched to form a matrix, a composite activator is supplemented with lime and desulfurized gypsum to jointly excite the activity of the fly ash and the water-quenched slag, and an auxiliary additive is used to improve the performance of the paste. When the cementing material provided by the invention is used for paste filling, the paste fluidity is good, the bleeding rate is low, the compressive strength is high, and the cementing material has good adaptability to different types of aggregates.
本发明提供了一种无熟料粉煤灰复合胶结料，本发明提供了一种无熟料粉煤灰复合胶结料，包括以下质量百分含量的组分：粉煤灰40～70％；水淬矿渣10～40％；脱硫石膏5～18％；生石灰3～15％；复合激发剂0.2～1.5％；辅助外加剂0.01～0.5％；所述复合激发剂包括碱性激发剂和盐激发剂。本发明以工业固废粉煤灰和水淬矿渣为主要原料，粉煤灰和水淬矿渣具有相似的激发活性，采用粉煤灰与水淬矿渣搭配，构成基体，并用复合激发剂辅以石灰、脱硫石膏联合激发粉煤灰和水淬矿渣的活性，利用辅助外加剂改善膏体性能。本发明提供的胶结料用于膏体充填时，膏体流动性好，泌水率低，抗压强度高，对不同种类的骨料都有很好的适应性。
Clinker-free fly ash composite cementing material, preparation method thereof and coal mine filling paste
The invention provides a clinker-free fly ash composite cementing material, which comprises the following components in percentage by mass: 40-70% of fly ash, 10-20% of fly ash, 10-20% of fly ash, 10-20% of fly ash, 10-20% of fly ash, and 10-20% of fly ash. 10-40% of water-quenched slag; 5-18% of desulfurized gypsum; 3-15% of quick lime; 0.2 to 1.5% of a composite activator; 0.01%-0.5% of an auxiliary additive; the composite exciting agent comprises an alkaline exciting agent and a salt exciting agent. According to the invention, industrial solid waste fly ash and water-quenched slag are used as main raw materials, the fly ash and the water-quenched slag have similar excitation activity, the fly ash and the water-quenched slag are matched to form a matrix, a composite activator is supplemented with lime and desulfurized gypsum to jointly excite the activity of the fly ash and the water-quenched slag, and an auxiliary additive is used to improve the performance of the paste. When the cementing material provided by the invention is used for paste filling, the paste fluidity is good, the bleeding rate is low, the compressive strength is high, and the cementing material has good adaptability to different types of aggregates.
本发明提供了一种无熟料粉煤灰复合胶结料，本发明提供了一种无熟料粉煤灰复合胶结料，包括以下质量百分含量的组分：粉煤灰40～70％；水淬矿渣10～40％；脱硫石膏5～18％；生石灰3～15％；复合激发剂0.2～1.5％；辅助外加剂0.01～0.5％；所述复合激发剂包括碱性激发剂和盐激发剂。本发明以工业固废粉煤灰和水淬矿渣为主要原料，粉煤灰和水淬矿渣具有相似的激发活性，采用粉煤灰与水淬矿渣搭配，构成基体，并用复合激发剂辅以石灰、脱硫石膏联合激发粉煤灰和水淬矿渣的活性，利用辅助外加剂改善膏体性能。本发明提供的胶结料用于膏体充填时，膏体流动性好，泌水率低，抗压强度高，对不同种类的骨料都有很好的适应性。
Clinker-free fly ash composite cementing material, preparation method thereof and coal mine filling paste
无熟料粉煤灰复合胶结料及其制备方法和煤矿充填膏体
MA YING (author) / GAN JIANDONG (author) / LI LIANG (author) / LI MENG (author)
2022-03-22
Patent
Electronic Resource
Chinese
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