Plain and Reinforced Concrete Targets Subjected to Projectile Impact

Iqbal, Mohammad; Rajput, Abhishek; Bhargava, Pradeep

doi:10.1016/j.proeng.2016.12.050

Cited by 24 publications

(10 citation statements)

References 8 publications

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“…The urgent necessity of obtaining high-strength concretes based on ordinary cements necessitates the search for new technological approaches, using mineral modifying admixtures and an organic modifier [2][3][4][5]. At the same time, it was proposed to use the waste of metallurgical production as modifying admixtures [12,13].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Fine-grained concretes are expedient to use for manufacturing thin-walled, densely reinforced, and other structures whose fabrication implies a constraint for the size of a filler. Such concretes are a multicomponent composition system [1] and contain both a fine-grained filler and a finely-dispersed filler in its composition, as well as Portland cement [2][3][4][5] and high-performance superplasticizers acting as deflocculants. Optimal application makes it possible to control the rheological properties of concrete admixtures.…”

Section: Introductionmentioning

confidence: 99%

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Research into effect of complex nanomodifiers on the strength of fine-grained concrete

Shishkina

Shishkin

2018

EEJET

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Досліджено вплив наномодифікаторів на міц ність дрібнозернистого бетону. Встановлено вплив найбільш широко розповсюджених нанонаповнюва чів, а саме мікрокремнезему, каоліну, вапна та гіпсу на змінення міцності цементного каменю та дрібно зернистого бетону. Виконано порівняння впливу означених нанонаповнювачів на міцність дрібнозер нистого бетону. Показано, що найбільш ефективни ми нанонаповнювачами є речовини, що містять спо луки кальціюКлючові слова: дрібнозернистий бетон, міце ли, поверхневоактивні речовини, нанонаповнювач, наномодифікатор, міцність Исследовано влияние наномодификаторов на прочность мелкозернистого бетона. Установлено влия ние наиболее широко распространенных нано наполнителей, а именно микрокремнезема, каолина, извести и гипса на изменение прочности цементного камня и мелкозернистого бетона. Выполнено сравне ние влияния указанных нанонаполнителей на проч ность мелкозернистого бетона. Показано, что наи более эффективным нанонаполнителем являются вещества, содержащие соединения кальцияКлючевые слова: мелкозернистый бетон, мицел лы, поверхностноактивные вещества, нанонапол нитель, наномодификатор, прочность UDC 666.948: 666.972.112

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research into effect of complex nanomodifiers on the strength of fine-grained concrete

Shishkina

Shishkin

2018

EEJET

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“…In this case, it is also possible to change the structure of cement stone at the macro level. This allows to provide specific properties that provide high operational reliability of structures made using nanotechnology 3 , in particular with the use of artificial raw materials 4 .…”

Section: Introductionmentioning

confidence: 99%

Influence of Nanomodifiers on the Properties of Concrete

Shishkina¹,

Shishkin²

2020

Prospects and Priorities of Research in Science and Technology

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“…Experimental studies of plain and reinforced concrete targets subjected to impact loading were of great interest to researches such as Rajput et al (2016) [6] who studied the influence of impact of rigid projectile on the ballistic performance of plain and reinforced concrete plates with different thickness; while Iqbal et al (2016) [7] compared the effect of rigid projectile normal impact on ballistic limit and the damaged area of both plain and reinforced concrete. An investigation of a new type of composite concrete called corundum-rubble concrete (CRC) was done by Xue et al (2017) [8], they compared the experiments results of CRC to reinforced concrete and they get much higher values for strength and hardness.…”

Section: Introductionmentioning

confidence: 99%

Investigation of High-Velocity Projectile Penetrating Concrete Blocks Reinforced by Layers of High Toughness and Energy Absorption Materials

Elhozayen

Laissy²,

Attia

2019

Civ Eng J

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Recently, the need to protect people and structures against attacks of terrorists are of a high increase. The main objective of this paper is to enhance the concrete resistance against ballistic impact of high velocity projectile by using different combination layers from different materials as reinforcement for concrete and investigate their effect on the penetration depth of projectile and the resulted damage of concrete. The investigation presents the development of a finite element accurate models using AUTODYN 3D. The Lagrangian formulation numerical techniques is used to model the projectile and concrete target. The investigated models are reinforced using different layers combinations of several materials such as ceramics, fiber composite, polymer and metal: (AL2O3 - 99.7% and Kevlar- epoxy, Teflon and aluminum alloy 6061-T6) .Those materials were chosen because of their high thermal shock resistance or their great capability in energy absorption. The main findings showed a significant enhancement in the reduction of penetration depth compared to the concrete resistance without reinforcement, which demonstrate the great performance of the used combinations in the shock wave propagation. Hence from the findings of this work we can say that the concrete reinforced by ceramics or aluminum alloy with fiber composite or polymer can be used for several applications as it represents a successful anti-penetration composite structure.

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Plain and Reinforced Concrete Targets Subjected to Projectile Impact

Cited by 24 publications

References 8 publications

Research into effect of complex nanomodifiers on the strength of fine-grained concrete

Research into effect of complex nanomodifiers on the strength of fine-grained concrete

Influence of Nanomodifiers on the Properties of Concrete

Investigation of High-Velocity Projectile Penetrating Concrete Blocks Reinforced by Layers of High Toughness and Energy Absorption Materials

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