Plastic Shrinkage
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Histopathological effect of sub-lethal concentration of aluminum phosphide (phostoxin) on Clarias gariepinus juveniles
Abtsract: The study evaluated the effect of sub-lethal concentration of phostoxin on Clarias gariepinus juveniles. C. gariepinus juveniles belonging to the same cohort (40.1±1.2g; 18.1±1.1cm) from a commercial fish farm were randomly placed ten in each of 15 plastic tanks containing 15 liters of water. They were exposed for 96 hrs to three sub-lethal conce
Pesq. Vet. Bras.. Publicado em: 2016-07
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2. Effect of steel fibers on plastic shrinkage cracking of normal and high strength concretes
Naturally concrete shrinks when it is subjected to a drying environment. If this shrinkage is restrained, tensile stresses develop and concrete may crack. Plastic shrinkage cracks are especially harmful on slabs. One of the methods to reduce the adverse effects of shrinkage cracking of concrete is by reinforcing concrete with short randomly distributed fiber
Materials Research. Publicado em: 2010-06
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3. Influência da substituição do agregado miúdo natural por agregado reciclado fino em propriedades de argamassas e concretos
Construction and demolition waste (CDW) recycling has been a good alternative to reducing the impact caused by the consumption and high demand of raw materials for civil construction. In this sense, it has been tried to incorporate those wastes in the production of concrete and decrease strength mortar, what would increase its potential use. This study was d
Publicado em: 2008
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4. Influência do lodo de ETE na massa para fabricação de cerâmica vermelha
The WTP produce many kinds of residue on your treatment stages, but the sludge is the more problematic from the final disposition point view. The actual rate of residue production deriving from technological evolution and the crescent population needs prevents the subtle equilibrium generation between consumption and recycling/reuse, creating problems of pol
Publicado em: 2008
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5. Evaluation of a plastic clay from the state of Rio de Janeiro as a component of porcelain tile body
The objective of this work was to evaluate the possibility of using a clay from the city of Silva Jardim, State of Rio de Janeiro, Brazil, in the composition of porcelain tile body. The clay investigated was a plastic kaolinitic type with white color. Initially, a typical porcelain body composed of the mixture of this clay with feldspar, quartz, kaolin and t
Matéria (Rio de Janeiro). Publicado em: 2007
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6. RETRAÇÃO, FLUÊNCIA E FRATURA EM COMPÓSITOS CIMENTÍCIOS REFORÇADOS COM POLPA DE BAMBU / SHRINKAGE, CREEP AND FRACTURE OF CEMENTITIOUS COMPOSITES REINFORCED WITH BAMBOO PULP
The application of cimentitious composites using vegetal fibers in substitution of asbestos is a worldwide fact in the fiber cement industry. Despite their good mechanical properties and durability, the use of asbestos fibers causes well-known health hazards. Although vegetal fibers have relatively poor mechanical properties compared with synthetic fibers, t
Publicado em: 2006
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7. Avaliação da aderência dos revestimentos argamassados: uma contribuição à identificação do sistema de aderência mecânico
The evaluation of finishing coat of mortar in the construction practice is commonly carried out by a macroscopic approach. However, for a better understanding of the several mechanisms related to mortar characterization and performance a microstructure assessment on these materials is necessary. The adherence of a mortar to the substrate proceeds by mechanic
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/04/2005
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8. A Biophysical Analysis of Stem and Root Diameter Variations in Woody Plants
A comprehensive model of stem and root diameter variation was developed. The stem (or root) was represented using two coaxial cylinders corresponding with the mature xylem and the extensible tissues. The extensible tissues were assumed to behave as a single cell separated from the mature xylem by a virtual membrane. The mature xylem and the extensible tissue
American Society of Plant Physiologists.
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9. The Biophysical Basis of Elongation Growth in Internodes of Deepwater Rice 1
Partial submergence induces rapid internodal elongation in deepwater rice (Oryza sativa L., cv Habiganj Aman II). We measured in vivo extensibility, tissue tension, hydraulic conductance and osmotic potential in the region of cell elongation in the uppermost internode. The in vivo extensibility of the internode, measured by stretching of living tissue with a