Use of rubberized concrete as a cushion layer in bulletproof fiber reinforced concrete panels

Sukontasukkul, Piti; Jamnam, Sittisak; Rodsin, Kittipoom; Banthia, Nemkumar

doi:10.1016/j.conbuildmat.2012.12.068

Cited by 42 publications

(16 citation statements)

References 8 publications

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“…Moreover, a higher ratio of GTR indicates the presence of more spaces in the polymeric network due to the incomplete cross-linking of GTR. Therefore, it may be concluded that the presence of GTR reduces the cross-linking of EPDM and HDPE and cannot protect the blend from deterioration, particularly at higher doses, thus acting only as filler [36].…”

Section: Concrete With Waste and Recycled Materials: Effects Of Gammamentioning

confidence: 99%

Gamma Radiation as a Recycling Tool for Waste Materials Used in Concrete

Barrera¹,

Córdoba²,

López³

et al. 2015

Evolution of Ionizing Radiation Research

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Over the course of the last 50 years, a large number of major technological advances have contributed to the development of higher-strength, high-performance materials that provide excellent benefits. Nevertheless, in most cases, after a very short useful life, these products become waste material and contribute to environmental degradation. This situation has created an environmental crisis that has reached global proportions. In efforts to combat this issue and to promote sustainable development and reduce environmental pollution, some investigations have focused on recycling using innovative and clean technologies, such as gamma radiation, as an alternative to conventional mechanical and chemical recycling procedures. In this context, the reuse and recycling of waste materials and the use of gamma radiation are useful tools for improving the mechanical properties of concrete; for example, the compressive strength and modulus of elasticity are improved by the addition of waste particles and application of gamma radiation. In this chapter, we propose the use of gamma radiation as a method for modifying waste materials; for instance, polyethylene terephthalate plastic bottles, automotive tire rubber, and the cellulose in Tetra Pak containers, and their reuse to enhance the properties of concrete.

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Section: Concrete With Waste and Recycled Materials: Effects Of Gammamentioning

confidence: 99%

Gamma Radiation as a Recycling Tool for Waste Materials Used in Concrete

Barrera¹,

Córdoba²,

López³

et al. 2015

Evolution of Ionizing Radiation Research

View full text Add to dashboard Cite

show abstract

“…Normal reinforced concrete does not perform well when subject to impact or explosion loading (Millard et al, 2009) as it is inherently weak in tension (Concrete Society, 2014). Sukontasukkul et al (2013) define concrete as a quasi-brittle material, which when subject to loading beyond its tensile strength, usually fractures. Concrete is often reinforced with steel, to cater for the tensile strength deficiencies.…”

Section: Impact Analysis On Concrete Structuresmentioning

confidence: 99%

The addition of synthetic fibres to concrete to improve impact/ballistic toughness

Richardson

Coventry

Lamb

et al. 2016

Construction and Building Materials

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Concrete is relatively weak in tension and may require some form of reinforcement to cope with tensile forces. Steel reinforcing bar is often used to cater for tensile and compressive forces. However, current research shows that the use of steel reinforcing bar does not afford concrete protection against impact. Alternatively it has been shown that where fibres are added to concrete mixes protection is afforded through increased energy absorption. It would appear that the dispersion of fibres throughout a concrete mix affords a degree of toughness between the reinforcement bar spacing.This research investigates the use of Type 1 micro synthetic fibres, Type 2 macro synthetic fibres and steel fibres used as post crack reinforcement in concrete samples when subject to a variety of stress induced states and compares the performance of these fibre mixes to that of a plain concrete mix. The test program adopted, subjected cube specimens to compressive strength tests, beam samples to both three point flexural bending and single point impact loading, and concrete slab sections to shot gun fire. The parameters investigated under test were: compressive strength, flexural strength, load deflection analysis, energy absorption and impact performance/resistance. Modelling the impact of shot fire on the test specimens was carried out using Finite Element Analysis, to inform slab design. The results of this investigation are of particular significance to the resilience of concrete structures under terrorist attack.The results show that the adoption of Type 2 macro synthetic fibres as concrete post crack reinforcement provide the greatest toughness when compared with the other fibre types and offer the greatest protection from spalling of the back face of the concrete slab, being the main consideration with regard to the performance of the slab on testing with shotgun fire. 2Damage containment after ballistic testing was also noted where Type 2 fibres were used.The Finite Element Analysis models were successful at predicting the damage recorded to the concrete slabs, when subject to the shotgun fire performance test.

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“…Compared to normal concrete, rubberised concrete is less brittle [Zheng 2008] and has higher damping coefficient [Hernandez-Olivares 2002] and impact energy absorption capacity [Sukontasukkul 2013, Atahan 2012, Liu 2012]. The concrete brittleness index decreases with increasing the rubber content, and can tend to zero for a concrete composite containing 40% rubber aggregate content [Topcu 2009, Hernandez-Olivares 2002.…”

Section: Mechanical Behaviourmentioning

confidence: 99%

“…Rubber aggregates also increase the concrete toughness up to a certain rubber content, after which the concrete toughness decreases due to the very low compressive strength [Hernandez-Olivares 2002]. The above properties make rubberised concrete attractive for applications such as slabs [Holmes 2014, Najim 2010, columns under seismic loads [Son 2011, Youssf 2014, precast lightweight blocks [Sukontasukkul 2009], pavements [Tian 2011, Meddah 2014, and bullet-proof panels [Sukontasukkul 2013]. The toughness and ductility of rubberised concrete with low rubber volume fraction (1-3%) can be further improved by adding steel fibres [Jian- He 2015].…”

Section: Mechanical Behaviourmentioning

confidence: 99%