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Updated: Mar 15, 2026

Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion
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Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion

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在露天采矿中全面提高爆破性能和抑制灰尘,使用改性泥石飞地质聚合物干材料

Xiaohua Ding1, Yuansong Wang2, Zhihao Shi1

  • 1School of Mines, China University of Mining and Technology, Xuzhou, 221116, China.

Scientific reports
|March 14, 2026
PubMed
概括

一种由回收钻井切片和飞灰制成的新型地质聚合物支柱材料,有效地抑制开采煤矿的源头尘埃. 这种可持续的解决方案提高了喷射效率,并减少了对环境的影响.

关键词:
这是一种除尘器.地质聚合物的地质聚合物.泥石泥石是一种泥石.业绩表现 业绩表现 业绩表现表现固体废弃物利用的利用方法

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Operation of a 25 KWth Calcium Looping Pilot-plant with High Oxygen Concentrations in the Calciner06:34

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Pozzolans01:21

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Pozzolans are siliceous or aluminous materials blended with Portland cement. They interact with the calcium hydroxide produced during the hydration of Portland cement and contribute to improved strength and durability of concrete. The pozzolanic activity, a measure of a pozzolan's effectiveness, is typically assessed using the strength activity index, as defined in ASTM C 618-93, which calculates the ratio of the compressive strength of cement mixtures with and without pozzolan.
Fly ash is...
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Shotcrete01:18

Shotcrete

Shotcrete is a specialized technique where mortar or small aggregate concrete rich in cement content is sprayed onto a surface at high velocity. The force of impact compacts the material and enables it to cling to vertical or overhead areas without sagging. The technique involves layering the shotcrete in stages until it reaches approximately 4 inches in thickness. Operator skill in nozzle management is pivotal in deciding the quality of the shotcrete. Shotcrete is used in constructing tunnel...
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Portland blast-furnace cement is made by blending Portland cement clinker with granulated blast-furnace slag, which accounts for 25 to 65 percent of the cement's weight. Despite its similarities to ordinary Portland (Type I) cement in terms of fineness and setting times, its early strength is lower, though it achieves comparable strength later on. It's particularly suited for mass concrete structures and marine environments due to its lower heat of hydration and superior sulfate...
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Quarrying is the process of extracting stone from a quarry, where specialized techniques are employed to remove large blocks of stone safely and efficiently. This process can involve controlled explosions or more precision-oriented methods such as cutting and drilling.
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Preplaced Aggregate Concrete01:29

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Preplaced aggregate concrete is ideal for construction environments that are not easily accessible. The process begins by properly wetting the gap-graded coarse aggregates to remove the dirt, then placing it in the form and compacting it. Voids are filled with a mortar mix pumped under pressure through slotted pipes. This mortar typically consists of Portland cement, pozzolan, fine aggregates, water, and a fluidizing aid. The pozzolan helps reduce bleeding and segregation while improving the...
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