Abstract: In recent years, smart composite materials have been employed in various science and engineering applications such as aerospace structures, nondestructive testing devices, medical devices, and sensing and actuating applications. One of the most popular classes is a 1-3 piezocomposite that composes of homogeneous transversely isotropic piezoelectric cylinders embedded in an isotropic elastic material. The 1-3 piezocomposites can produce higher electro-mechanical coupling effects, more conformable and less brittle than pure piezoelectric materials. For optimal design of these composites to meet high requirements in practical science and engineering applications, it is essential to know the effective properties that couple electromechanical properties of the composites. This paper is concerned with the development of an efficient methodology to determine the effective properties of smart composite materials with special emphasis on 1-3 piezocomposites. A micromechanics theory based on a p

• Publication Date: 11-Oct-2015
• DOI: 10.15224/978-1-63248-065-1-42
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Abstract: This work investigates the strength development of alkali activated blast furnace slag mortars (AAS) with tile dust (TD) at certain rates. BFS was used instead of cement at the rate of 60% and 80%. Sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) alkalis were added as solution into the mixture. First stage Na2O 6, 7 and 8 wt% of the BFS was added. Better results were obtained from the strength values of the sample containing 8% Na2O. Because of this result, in the second stage, tile dust was used instead of 5% and 10% of the BFS. However, silicate modules (MS = SiO2/Na2O) in both experimental studies were calculated as 0.5, 0.75 and 1.00. Twenty eight-days strength value of AAS+TD (tile dust was used instead of 5% and MS=0.75) specimen are higher than rate of 60% BFS specimen.

• Publication Date: 11-Oct-2015
• DOI: 10.15224/978-1-63248-065-1-43
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