Drying Shrinkage
Mostrando 1-12 de 60 artigos, teses e dissertações.
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1. Influence of bottom ash and red mud additions on self-leveling underlayment properties
Abstract Self-levelling underlayments (SLUs) based on Portland cement (PC) are susceptible to cracking due to drying shrinkage. The present study evaluated the influence of binder contents on systems consisting of calcium aluminate cement (CAC), PC, and a source of calcium sulfate (C$), derived from the flue gas desulfurization process (FGD), on the mechanic
Cerâmica. Publicado em: 2022
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2. Influence of the physical characteristics of sand and the crushed filler content on the properties of self-leveling mortars
Abstract The properties of self-leveling mortars (SLMs) in the fresh and hardened state are strongly affected by their formulation. In this study, the influence of three different quartz sands (different physical characteristics) was investigated in SLMs, as well as the replacement of these sands by crushed basalt filler. The tests performed were: spreading,
Cerâmica. Publicado em: 2021-06
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3. Influence of drying methods on the physicochemical properties and nutritional composition of instant Tremella fuciformis
Abstract Instant Tremella fuciformis is ready to eat after adding hot water and is a delicious edible mushroom food. However, the drying method affects the quality of product. The present work evaluated the effects of freeze drying (FD), microwave drying (MD), and hot air drying (HAD) on shrinkage ratio, rehydration ratio, microstructure, polysaccharide and
Food Sci. Technol. Publicado em: 2020-09
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4. Influence of drying methods on the physicochemical properties and nutritional composition of instant Tremella fuciformis
Abstract Instant Tremella fuciformis is ready to eat after adding hot water and is a delicious edible mushroom food. However, the drying method affects the quality of product. The present work evaluated the effects of freeze drying (FD), microwave drying (MD), and hot air drying (HAD) on shrinkage ratio, rehydration ratio, microstructure, polysaccharide and
Food Sci. Technol. Publicado em: 13/12/2019
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5. Efeito da adição de resíduo de vidro em massa de cerâmica de alvenaria
RESUMO Este trabalho investigou o efeito da adição de resíduo de vidro para fabricação de cerâmica de alvenaria. Foram conformados corpos-de-prova cilíndricos de 27 mm de diâmetro por 45 mm de altura, a partir da massa padrão de uma indústria de cerâmica vermelha e outras 3 formulações (5, 10 e 20%) com incorporação de vidro, baseado em estudo
Matéria (Rio J.). Publicado em: 25/11/2019
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6. Influence of Drying Conditions on the Final Quality of Cherry and Grape Tomatoes
ABSTRACT The convective drying process of cherry and grape tomatoes for dried tomato production was studied taking into account operational and sensorial aspects. The tomatoes were physicochemical characterized and dried at three air temperatures in a drying chamber. Thus, it was possible to the determinate the physicochemical characteristics, drying kinetic
Braz. arch. biol. technol.. Publicado em: 14/11/2018
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7. Characterization and Evaluation of Ceramic Properties with Spherical and Prismatic Samples of Clay Used in Red Ceramics
The Brazilian red ceramic industry monthly consumes about 10.3 million tons of clay, its main raw material. In most potteries, characterization of the clay is made empirically, which can result in roof tiles and blocks not according to standards. In this sense, this paper aims to characterize clays used in the manufacturing of red ceramic products in a facto
Mat. Res.. Publicado em: 09/11/2017
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8. Clay Mineralogy of Brazilian Oxisols with Shrinkage Properties
ABSTRACT Shrinkage capacity (caráter retrátil in Portuguese) is a new diagnostic characteristic recently introduced in the Brazilian System of Soil Classification (SiBCS) to indicate shrink and swell properties observed in subtropical soils from highland plateaus in southern Brazil, specifically in Oxisols with brown colors. In soils located in road cuts e
Rev. Bras. Ciênc. Solo. Publicado em: 24/08/2017
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9. Drying Contraction Assessment of Ceramic Products Produced by Extrusion or Pressing Formulated with Sheep Wool Waste
The main aim of this paper was to evaluate ceramic products containing a percentage of ash from sheep wool waste through drying linear shrinkage from a small brickyard in Bagé - RS. The ash percentages used in the formulation were 0, 5, 10, 20 and 30%. Raw materials were analyzed by Energy Dispersive X - ray Fluorescence (XRF/EDX). The methods used to shape
Mat. Res.. Publicado em: 18/05/2017
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10. QUALITY, PERFORMANCE ANALYSIS, MASS TRANSFER PARAMETERS AND MODELING OF DRYING KINETICS OF SOYBEAN
Abstract Different aspects of soybean drying such as energy and exergy analyses, quality, mass transfer parameters, and modeling of drying kinetics were investigated in a microwave dryer. Results showed that energy and exergy efficiency increased with increasing microwave power, while values of energy efficiency (33.70 to 66.0%) were higher than exergy effic
Braz. J. Chem. Eng.. Publicado em: 2017-01
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11. The impact of convective drying on the color, phenolic content and antioxidant capacity of noni (Morinda citrifolia L.)
Abstract The effect of thin-layer drying temperature on color, phenolic content and antioxidant capacity of noni slices was investigated. Noni slices were air-dried at 50, 60 and 70 °C under natural convection conditions. Drying curves were fitted to thin-layer drying models in order to evaluate the drying characteristics of the product. In addition, an uns
Food Sci. Technol. Publicado em: 08/12/2016
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12. Effects of drying air temperature and grain initial moisture content on soybean quality (Glycine Max (L.) Merrill)
ABSTRACT This study aimed to evaluate the effect of air-drying temperature and initial moisture content on volume shrinkage, physical quality and oil extraction yield of soybean grains. The grains used in this experiment were harvested at two distinct moisture levels of 19 and 25%. Then, these grains were taken to dryness at three different air temperatures
Eng. Agríc.. Publicado em: 2016-10