Design of concrete mix to improve its properties against nuclear radiation (gamma rays) | ||
| The International Conference on Civil and Architecture Engineering | ||
| Article 23, Volume 7, 7th International Conference on Civil and Architecture Engineering, May 2008, Pages 606-632 PDF (672.97 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/iccae.2008.45486 | ||
| Abstract | ||
| This study was carried out for designing a concrete has ability to resist the effects of nuclear explosions, this leads to discuss theses effects (blast, thermal, radiation and so on). The present study has been carried out with a view to establish the basic engineering data and information about the technology of heavy weight concrete from such local materials. It can be used as shielding materials against gamma rays because of its potential properties, radiation attenuation (gamma rays) mechanical characteristics, durability and economic structural use. In this study Ilmenite is used as coarse aggregate, serpentine is used as fine aggregate mixed with normal Portland cement and water, also steel fibers were added with different percentages. Different concrete mixes were designed, produced, cured, and tested for compressive, tensile, flexural, ultrasonic test and bulk density. Admixtures were employed to improve the mechanical properties. The results showed that the steel fiber Ilmeniteserpentine heavy weight concrete has good mechanical properties for construction of nuclear shelters. Results show that Ilmenite-serpentine heavy weight concrete has a good mechanical property compared with the ordinary concrete in most of tests specially the tensile and flexural strengths. It has been found that the ISFHWC can be produced with a maximum density of the order 3.35 t/m3. Also results show that the effect of Ilmenite-serpentine heavy weight concrete of suitable thickness provides adequate protection against nuclear radiation emitted during nuclear burst, specilly gamma rays, ordinary concrete can be used for shielding but excessive thickness may be required. The choice of suitable materials will improve the attenuation of radiation and reduce the required thickness. In this study gamma rays of different energies were used to study the attenuation properties of Ilmenite-serpentine heavy weight concrete. Experimental measurements have been carried out to study the gamma rays attenuation of different types of Ilmeniteserpentine heavy weight concrete. | ||
| Keywords | ||
| design; Ilimonite; serpentine; steel fiber; nuclear; Gamma rays; Radiation | ||
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