Production of polymer-plaster composite by gamma irradiation

Gazineu, Maria Helena Paranhos; Santos, Valdemir Alexandre dos; Hazin, C.A.; Vasconcelos, Wagner Eustáquio de; Dantas, C.C.

doi:10.1016/j.pnucene.2011.06.014

Cited by 10 publications

(10 citation statements)

References 4 publications

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“…The rigidity of cellulose fibers increases, while flexibility decreases, with an increasing ratio of crystalline to amorphous regions. Moreover, the addition of cellulose fibers improves the bending behavior of the composites [11].…”

Section: Recycled and Waste Materials Used In Concretementioning

confidence: 98%

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: Recycled and Waste Materials Used In Concretementioning

confidence: 98%

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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“…Gypsum composites are widely used in the construction industry depending on their good sound insulation, thermal and fire resistance properties (Gazineu et al, 2011;Heim et al, 2004;Li et al, 2011;Vimmrova et al, 2011). Different types of materials can be added for enhancing mechanical properties of the gypsum based composites (Eve et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Mechanical performance comparison of glass and mono fibers added gypsum composites

Yıldızel¹,

Çarbaş²

2018

CJSMEC

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Gypsum and gypsum based composite are widely preferred in construction industry for various purposes. Mechanical performances of gypsum composite have been enhanced by researchers in order to increase its area of usage. In this research, gypsum composites containing expanded glass were reinforced by glass fibers (GF) and mono polypropylene fibers (MPF). GF and MPF were used up to 1.5 %. The flexural strength, compressive strength, and shrinkage behavior of the composites were examined within the scope of this study. 50 x 50 x 50 mm and 40 x 40 x 160 sized specimens were prepared for the mechanical performance tests. It was obtained that flexural and shrinkage behavior of the composite were enhanced with the addition of MPF compared to GF added mixes; however, compressive strength values were not as high as GF reinforced composites.

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“…This is used as a soil improvement material and cement raw material. PS ash increased the strength of extremely stiff concrete; moreover, 2 Advances in Materials Science and Engineering it has high water absorption [8,9]. Different composite materials have been produced by incorporating cellulosic materials for improvement of mechanical properties: (a) bending behavior is improved by incorporating cellulose fibers from waste paper; (b) toughness and tensile behavior of thin-sheet cement products are improved by adding fibers of recycled waste paper; (c) shore hardness (SH) values are increased as the resin concentration increases in composites elaborated with Tetra Pak and resin materials; and (d) maximum of strengthening is achieved for cement matrixes when adding plant-fibers and man-made cellulose fibers (from 8 to 10 wt%); the costs are reduced with this substitution [4,5,9,10].…”

Section: Introductionmentioning

confidence: 99%

“…Some studies covering the effects of ionizing radiation on polymer-ceramic composite materials, for example, in gypsum/poly(methyl) acrylate composites showed that the yield of polymerization increased with increasing radiation dose and leveled off at a dose around 3-4 kGy, where a yield of 87-88% is achieved [9]. As this process is completed at room temperature, there is much economy of heat energy, besides the reduction in costs to keep the composite under pressure.…”

Section: Introductionmentioning

confidence: 99%

Waste Cellulose from Tetra Pak Packages as Reinforcement of Cement Concrete

Martínez-Barrera

Dı́az

Cuevas-Yáñez

et al. 2015

Advances in Materials Science and Engineering

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The development of the packaging industry has promoted indiscriminately the use of disposable packing as Tetra Pak, which after a very short useful life turns into garbage, helping to spoil the environment. One of the known processes that can be used for achievement of the compatibility between waste materials and the environment is the gamma radiation, which had proved to be a good tool for modification of physicochemical properties of materials. The aim of this work is to study the effects of waste cellulose from Tetra Pak packing and gamma radiation on the mechanical properties of cement concrete. Concrete specimens were elaborated with waste cellulose at concentrations of 3, 5, and 7 wt% and irradiated at 200, 250, and 300 kGy of gamma dose. The results show highest improvement on the mechanical properties for concrete with 3 wt% of waste cellulose and irradiated at 300 kGy; such improvements were related with the surface morphology of fracture zones of cement concrete observed by SEM microscopy.

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Production of polymer-plaster composite by gamma irradiation

Cited by 10 publications

References 4 publications

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

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

Mechanical performance comparison of glass and mono fibers added gypsum composites

Waste Cellulose from Tetra Pak Packages as Reinforcement of Cement Concrete

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