Blast testing of high performance geopolymer composite walls reinforced with steel wire mesh and aluminium foam

Liu, Jian; Wu, Chengqing; Li, Chunguang; Dong, Wenxue; Su, Yu; Li, Jun; Cui, Ningren; Zeng, Fanzi; Dai, Lan Hong; Meng, Qingfei; Pang, Jiabao

doi:10.1016/j.conbuildmat.2018.11.207

Cited by 35 publications

(11 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In another example of a recent investigation focusing on the use of high calcium GGBFS-based AAB in structural concretes, Liu et al (2019) studied the behavior of reinforced concrete walls, made with an AAB in which the precursor was composed of a blend of GGBFS and MK, when subjected to different kinds of TNT blasts. With this study, the authors intended to address the typical limitations of conventional OPC concrete in resisting shear and concrete spalling arising from blast loadings by replacing it with a cost-efficient concrete with, expectedly, higher strength and ductility.…”

Section: Ggbfs and Metakaolin As Precursorsmentioning

confidence: 99%

Structural performance of waste-based reinforced alkali-activated concrete

Miraldo

Lopes

Pacheco-Torgal

et al. 2022

Handbook of Advances in Alkali-Activated Concrete

View full text Add to dashboard Cite

Section: Ggbfs and Metakaolin As Precursorsmentioning

confidence: 99%

Structural performance of waste-based reinforced alkali-activated concrete

Miraldo

Lopes

Pacheco-Torgal

et al. 2022

Handbook of Advances in Alkali-Activated Concrete

View full text Add to dashboard Cite

“…At present, many scholars have used numerical simulation to explore the impact of different types of explosion-proof materials on the explosion-proof performance of structures under explosive impact loads and have made some theoretical achievements that are helpful in the selection and design of explosion-proof materials. [18][19][20] Liu et al 21 found that the damage degree of high-performance geopolymer composite walls reinforced by steel wire mesh (SWM) under explosive impact loads was lower than that of conventional reinforced concrete walls and SWM-and aluminum foam-reinforced high-performance geopolymer composite walls, and the integrity of the wall structure was improved, with a superior explosion-proof effect. Matsagar 22 concluded that noncomposite panels composed of steel fiberreinforced concrete plates and cenospheric aluminum alloy syntactic foam composite sandwich plates offer good explosion-proof performance.…”

Section: Introductionmentioning

confidence: 99%

Study on steel fiber synergistically reinforced cellular concrete explosion‐proof effect in an underwater near‐field environment

Cao,

Qiu,

Huang

et al. 2023

Structural Concrete

View full text Add to dashboard Cite

Based on the static and dynamic test results of steel fiber synergistically reinforced cellular concrete (SFSRCC) under a complex stress state, the yield surface equation and strain rate effect are modified to construct a modified Holmquist–Johnson–Cook (HJC) model suitable for the dynamic compression behavior characteristics of SFSRCC, and the modified HJC model is verified. At the same time, a finite width SFSRCC protective layer–roller compacted concrete (RCC) slab–water–explosive multimedia coupling model is established to explore the influence of setting different thicknesses of the SFSRCC protective layer (0, 0.1, 0.2, and 0.3 m) on the explosion‐proof performance and effect of the RCC slab structure. The results show that the heavy stress–strain curves and dynamic failure modes of the SFSRCC under different strain rates are in good agreement with the experimental results. The maximum errors of peak stress and peak strain between the simulation results and the experimental results are 1.04% and 6.6%, respectively, which confirms the validity of the HJC correction model and the accuracy of the simulation results. After setting different thicknesses of the protective layer, the RCC slab blast crater depth is reduced by 56.7%, 80%, and 93.3% compared with that at 0.18 m without a protective layer program, and almost no damage to the back explosion surface occurs. The failure volume ratio of the protected RCC slab structure gradually decreases from 38.53% to 3.24% with increasing protective layer thickness, and the protected RCC slab shows only slight damage after setting the protective layer. When the thickness of the protective layer is 0.3 m, the damage of the protected RCC slab structure is distributed in the surface area, which has little effect on the structural safety. These results show that the additional SFSRCC protective layer under the condition of underwater near‐field explosion can significantly reduce the damage degree of the slab structure and improve the explosion‐proof performance of the protected RCC slab structure. This research offers a theoretical reference for the explosion‐proof material selection and design of hydraulic structures and explosion‐proof application of SFSRCC under the action of underwater explosion impact loads.

show abstract

“…It is clear that the blast causes local damage to the load-bearing elements. Jian Liu, Chengqing Wu, Chunguang Li, Wenxue Dong, Yu Su, Jun Li, Ning Cui, Fan Zeng, Lan Dai, Qingfei Meng and Jiabao Pang [14] discussed two blast tests that study the blast resistance of high performance geopolymer composite walls reinforced with steel wire mesh (SWM) and aluminum. Conventional reinforced concrete (CRC) walls were also tested as control specimens.…”

Section: Introductionmentioning

confidence: 99%

Bio-Inspired of Pyramidical Concrete Barrier Walls against the Effects of Explosion Waves

Zahran¹,

Hassan²,

Osman³

2022

OJCE

View full text Add to dashboard Cite

Biomimicry is a technique that inspired solutions to engineering problems through the study of natural systems, designs and processes. Recently, the engineering Biomimicry technique has been used to inspire a protection system against the blast waves and that can mitigate, absorb, and reflect the blast waves. Hence, this work studies the effect of different geometrical configurations of concrete wall barriers inspired by nature against blast waves. The non-linear 3d numerical model is used to model the proposed configurations. The finite element modeling is validated with referenced experimental works. The response of the proposed structural configurations of the wall barrier is analyzed. The results showed that the new bio-inspired pyramidical structure configuration (PCBW) has a notable effect on the mitigation of blast hazards which gave the best performance for the protection of the area behind the wall barrier with 19.5% with respect to traditional concrete barrier wall (TCBW). Also, it is concluded that nature inspiration has a great effect on designing new protection systems against the effect of blast waves.

show abstract

Blast testing of high performance geopolymer composite walls reinforced with steel wire mesh and aluminium foam

Cited by 35 publications

References 38 publications

Structural performance of waste-based reinforced alkali-activated concrete

Structural performance of waste-based reinforced alkali-activated concrete

Study on steel fiber synergistically reinforced cellular concrete explosion‐proof effect in an underwater near‐field environment

Bio-Inspired of Pyramidical Concrete Barrier Walls against the Effects of Explosion Waves

Contact Info

Product

Resources

About