Decorative constructional expanded clay lightweight concrete on cement slurry processing gravel
Journal Title: Вісник Одеської державної академії будівництва та архітектури - Year 2017, Vol 1, Issue 66
Abstract
Mechanical properties and color range of decorative expanded clay lightweight concrete were investigated. Red and yellow iron-oxide synthetic pigments were applied. Structural expanded clay lightweight concrete was manufactured using two technologies. The first series was manufactured using traditional technology; the second series was produced by the technology with the application of porous gravel treatment with cement slurry. The slurry was prepared by introducing 30% cement into water. The expanded clay gravel with a size of 5-10 mm. was used. It was found that the technology of preparation does not affect the water/cement mixture. The strength of decorative lightweight concrete changes little when using pigments. The compressive strength of expanded clay lightweight concrete is increased by an average of 1 MPa by treating the porous gravel with cement slurry. The density of lightweight concrete is also increased by 10-20 kg/m3 when processing porous gravel. However, the processing with the cement slurry does not affect the tensile strength of the decorative expanded clay lightweight concrete. The color range of decorative expanded clay lightweight concrete was analyzed using digital photos in the RGB color scheme. It was found that the amount of pigment significantly affects the color of concrete. Due to the processing of gravel with cement slurry, the saturation of the color of the decorative concrete slightly improves.
Authors and Affiliations
S. O. , Kroviakov, S. M. , Petrichko, L. V. , Dudnik, G. G. , Tkachenko
Keywords
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