Results 1 to 10 of about 18,220 (209)

Mechanical properties and energy evolution of cemented tailings-rock powder backfill under uniaxial compression: effect of rock powder type and content [PDF]

open access: yesScientific Reports
Economic investment and mechanical characteristics represent primary limitations to the widespread adoption of cemented tailings backfill. This study introduces an approach of using quarry waste to generate rock powder, which is subsequently mixed with ...
Jiyong Zhang   +5 more
doaj   +3 more sources

Experimental research and energy analysis of a new type of dry ice powder pneumatic rock breaking technology

open access: yesInternational Journal of Mining Science and Technology, 2023
When the traditional drill and blast method is applied to rock crushing projects, it has strong vibration, loud noise and dust pollution, so it cannot be used in densely populated areas such as urban public works.
Xiaofei Wang   +4 more
doaj   +3 more sources

Effects of Rock Powder Additions to Cattle Slurry on Ammonia and Greenhouse Gas Emissions

open access: yesAtmosphere, 2021
For several decades, farmers have been mixing rock powders with livestock slurry to reduce its NH3 emissions and increase its nutrient content. However, mixing rock powders with slurry is controversial, and there is currently no scientific evidence for ...
Philipp Swoboda   +4 more
doaj   +3 more sources

Experimental research on the glass fiber-reinforced effect and mechanisms of sand powder 3D-printed rock-like materials

open access: yesJournal of Materials Research and Technology
Conducting laboratory tests on natural rocks has significant value for the scientific and practical advancement of various types of rock engineering. The investigation of a rock-like materials that is similar in characteristics and structure to natural ...
Lishuai Jiang   +6 more
doaj   +3 more sources

Design and Low-Temperature Performance Evaluation of High-Modulus Co-Modified Asphalt Mixes with Rock Asphalt/Rubber Powder

open access: yesApplied Sciences, 2023
High-modulus asphalt mixes are effective means to solve rutting problems, but they perform poorly at low temperatures. This study aims to enhance the modulus and low-temperature properties of mixes.
Lianfang Wang, Lijun Sun, Quan Lv
doaj   +3 more sources

Influence of waste calcareous rock powder on concrete transmission performance [PDF]

open access: yesE3S Web of Conferences, 2021
Reuse of stone powder formed in the production of manufactured sand is of great significance to environmental protection and resource utilization. In this paper, the waste calcareous rock powder formed in the manufactured sand production line was added ...
Cheng Jianping
doaj   +1 more source

Rock powder amendment mitigates microplastic induced destabilization of soil organic carbon by modulating molecular composition and microbial assembly

open access: yesGeoderma
Microplastic contamination poses a significant threat to soil organic carbon (SOC) stability, while enhanced weathering via rock powder application is a promising carbon sequestration technology that enhances SOC through mineral protection.
Zhidong Zhou   +5 more
doaj   +3 more sources

Powder factor prediction in blasting operation using rock geo-mechanical properties and geometric parameters [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2022
Prediction of powder factor is a major activity while preparing drilling and blasting operation, as the total production cost depends on it. It is a major input parameter in blast design as it influences the efficiency of subsequent operations in mining.
Patrick Adesida
doaj   +1 more source

"Performance and viscoelastic analysis of rock asphalt/rubber powder co-modified asphalt"

open access: yesHecheng xiangjiao gongye, 2022
Qingchuan rock asphalt and rubber powder were used to modify the basis asphalt, and rubber powder modified asphalt and rock asphalt/rubber powder co-modified asphalt were prepared by changing the amount of rock asphalt with the constant mass fraction of ...
ZHANG Shuai1,2, WANG Lian-fang1,2, ZHAO Xu1, LIU Yi-mei3
doaj   +1 more source

Effects of Mixing Hyperaccumulated Straw and Phosphate Rock Powder on Cd Content in Chinese Cabbage [PDF]

open access: yesE3S Web of Conferences, 2019
In this paper, hyperaccumulator straw (Solanum nigrum L., Amaranthus chinense L., and Siegesbeckia orientalis L.) and phosphate rock powder were selected as materials, a pot experiment was used to study the effects of three compounding modifiers on the ...
Luo Xian   +6 more
doaj   +1 more source

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