Detonation Velocity of Emulsion Explosives Containing Cenospheres

Anshits, A. G.; Anshits, N. N.; Deribas, A. A.; Karakhanov, S. M.; Kasatkina, N. S.; Пластинин, А. В.; Reshetnyak, A. Yu.; Сильвестров, В. В.

doi:10.1007/s10573-005-0074-3

Cited by 31 publications

(23 citation statements)

References 3 publications

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“…The study of spherical liquid layers is a task of current interest in connection with the investigation of properties of some new materials, such as spheroplast or sensitizers for emulsion explosives [1,2]. The mathematical and numerical modeling of the formation of spherical microballoons is held in [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of heat and mass transfer processes in a spherical layer of viscous incompressible liquid with free boundaries

Zakurdaeva

2016

MATEC Web Conf.

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Abstract.The results of mathematical modelling of the dynamics of a mixture of the viscous incompressible liquid and gas, which fills a spherical layer with free boundaries and contains a gas bubble within itself, are presented in this paper. Spherical symmetry is assumed, and it is considered that the dynamics of the layer is determined by thermal, diffusive and inertial factors. On the basis of constructed numerical algorithm the studies of the formation of the liquid glass layers, which contain the carbon dioxide gas within themselves, have been conducted. The impact of the external thermal regime, external pressure and the density of gas in the bubble at the initial time on the dynamics of the layer, diffusion and heat-and-mass processes inside it is investigated. The results of numerical investigation of the full and simplified thermal problem statement, without consideration of gas diffusion, are compared.

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Section: Introductionmentioning

confidence: 99%

Numerical investigation of heat and mass transfer processes in a spherical layer of viscous incompressible liquid with free boundaries

Zakurdaeva

2016

MATEC Web Conf.

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“…Many researchers have indicated the extensive use and advantages of emulsion explosives for better and cost-effective fragmentation of rocks in mining activities. Although the continual process of development and trials of emulsion explosives started several decades ago, emulsions attract the attention of researchers even now and are considered the most modern and widely used explosives [2][3][4][5][6][7][8][9] . One of the main features, apart from low sensitivity to mechanical stimulus which makes it so popular, is the ability to vary density over a wide range resulting in different detonation velocities.…”

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confidence: 99%

“…An LDEX is preferable in soft or medium hard rock or highly jointed rock structures, as it permits a controllable energy for rock fragmentation. The low VOD provides sufficient shattering action needed for the required fragmentation 7,32 . Detonation impedance measures the relative ability of different explosives to transmit their pressure to stress waves in a given rock and is a product of density and VOD of the explosives.…”

mentioning

confidence: 99%

“…Based on chemistry and petrography, granitoids are usually classified into I-S-M and A-types [3][4][5] . The term A-type granite was introduced by Loiselle and Wones 4 for a specific suite of granitoids, which are anhydrous, alkaline and anorogenic 6,7 . A-type granites occur in a number of regionally extension-related environments, such as continental rift zones, post-collisional setting, and even in subduction-related settings 4,[7][8][9][10][11] .…”

mentioning

confidence: 99%

“…The term A-type granite was introduced by Loiselle and Wones 4 for a specific suite of granitoids, which are anhydrous, alkaline and anorogenic 6,7 . A-type granites occur in a number of regionally extension-related environments, such as continental rift zones, post-collisional setting, and even in subduction-related settings 4,[7][8][9][10][11] . Therefore, they provide significant information on the extensional magmatic processes that contribute to the chemical evolution of upper continental crust 10,12 .…”

mentioning

confidence: 99%

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Influence of Density of Emulsion Explosives on its Velocity of Detonation and Fragmentation of Blasted Muckpile

Mishra

Rout²,

Singh

et al. 2017

Current Science

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Opencast mining accounts for about 86% of the produced coal in India. Most of the opencast mines in the country use bulk emulsion explosives. The total consumption of explosives in India is around 550,000 tonnes annually. It has been shown that detonation velocities vary with the density of the emulsion explosive. Here we describe experiments that have been conducted to understand the influence of velocity of detonation of emulsion explosives on fragmentation of blasted muckpile over a range of densities. The density of explosives was varied from 0.6 to 1.1 g/cc which resulted in the variation of detonation velocity from 3262 to 4624 m/s.

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Study on a New Cleaner Emulsion Explosive Containing Common Clay

Zhou

Shen

et al. 2018

Propellants Explo Pyrotec

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This paper introduces a novel emulsion explosive, which has three primary advantages, namely, the ability to easily adjust various detonation properties to desired values, decrease the overall cost of civil explosive products, and minimize environmental pollution during use. Immediate and time‐related experiments are performed in order to identify changing detonation properties of these new formulas. Our results show that both common clay and hollow glass micro‐spheres (HGMs) function as thermal diluents, which indicates that for a larger quantity of these additives, the weaker are the detonation properties under the condition of our experimental ratios (HGMs: from 5 wt.% to 15 wt.%; common clay: from 0 wt.% to 20 wt.%). Furthermore, a comparison of four alternative emulsion explosive compositions reveals that the longest storage time in this study is 5 weeks with No. 3‐3, which contains 15 wt.% HGMs and 10 wt.% common clay. In addition, nonlinear attenuation is observed and explained for that period.

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Detonation Velocity of Emulsion Explosives Containing Cenospheres

Cited by 31 publications

References 3 publications

Numerical investigation of heat and mass transfer processes in a spherical layer of viscous incompressible liquid with free boundaries

Numerical investigation of heat and mass transfer processes in a spherical layer of viscous incompressible liquid with free boundaries

Influence of Density of Emulsion Explosives on its Velocity of Detonation and Fragmentation of Blasted Muckpile

Study on a New Cleaner Emulsion Explosive Containing Common Clay

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