Influence of the Residue of Casting by Lost Wax in the Modulus of Elasticity and Porosity of Concretes

Carine F. Machado; Weber G. Moravia

doi:10.4028/www.scientific.net/MSF.805.343

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HomeMaterials Science ForumMaterials Science Forum Vol. 805Influence of the Residue of Casting by Lost Wax in...

Influence of the Residue of Casting by Lost Wax in the Modulus of Elasticity and Porosity of Concretes

Abstract:

This work evaluated the influence of additions of the ceramic shell residue (CSR), from the industries of Lost Wax Casting, in the modulus of elasticity and porosity of concrete. The CSR was ground and underwent a physical, chemical, and microstructural characterization. It was also analyzed, the environmental risk of the residue. In the physical characterization of the residue were analyzed, the surface area, and particle size distribution. In chemical characterization, the material powder was subjected to testing of X-ray fluorescence (XRF). Microstructural characterization was performed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The residue was utilized like addition by substitution of cement in concrete in the percentages of 10% and 15% by weight of Portland cement. It was evaluated properties of concrete in the fresh and hardened state, such as compressive strength, modulus of elasticity, absorption of water by total immersion and by capillarity. The results showed that the residue can be used in cement matrix and improve some properties of concrete. Thus, the CSR may contribute to improved sustainability and benefit the construction industry.

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Periodical:

Materials Science Forum (Volume 805)

Pages:

343-349

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.805.343

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Online since:

September 2014

Authors:

Carine F. Machado*, Weber G. Moravia

Keywords:

Lost Wax Casting, Waste of Ceramic Shell, Water Absorption

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