Mix Proportions
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. Mix design formulation range for metakaolin-based geopolymer synthesis
Abstract This article presents a range of mix design formulations to obtain metakaolin-based geopolymer synthesis. Geopolymer samples were synthesized from metakaolin, a 10 M sodium hydroxide solution, and alkaline sodium silicate. These three components were mixed in different proportions to form a paste which was molded in a cylindrical shape, set at room
REM - International Engineering Journal. Publicado em: 2022
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2. Ternary system Portland cement-calcium aluminate cement-calcium sulfate applied to self-leveling mortar: a literature review
Abstract The modernization of building systems is increasingly demanding products that improve efficiency during their processing. The development of self-leveling mortars for the regularization of flooring is a consequence of this evolution. The high contents of binder and water to obtain self-flowing property, plus the application of thin layers over large
Cerâmica. Publicado em: 2021-03
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3. Powdered beverage mix with acerola pulp, whey and maltodextrin
RESUMO A mistura de polpa de acerola com soro lácteo, subproduto da indústria de laticínios, conduziu a base deste trabalho, cujo objetivo foi desenvolver uma bebida composta em pó de polpa de acerola, soro lácteo e maltodextrina (dextrose equivalente 20). Para determinação das proporções da mistura foi utilizado um delineamento de misturas de tipo
Rev. Ciênc. Agron.. Publicado em: 04/11/2019
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4. Application of Support Vector Machine and Finite Element Method to predict the mechanical properties of concrete
Abstract Compressive strength and Young’s modulus are the main properties used in the design of concrete structures. They are responsible for the cost, safety and dimensioning of the structure, and are generally measured in expensive and time-demanding tests. This fact encourages researches for fast and cost-effective methods to investigate the concrete’
Lat. Am. j. solids struct.. Publicado em: 12/08/2019
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5. Behavior of the self-compacting mortar with sugarcane bagasse ash in the fresh and hardened state
Resumo O concreto autoadensável (CAA) é um material que apresenta alta trabalhabilidade e moderada viscosidade quando comparado ao concreto convencional. Em função de suas vantagens, nas últimas décadas, o CAA vem sendo investigado e as pesquisas abordam a utilização de novos componentes em sua estrutura e a busca pela melhoria de seu desempenho, tan
Rev. IBRACON Estrut. Mater.. Publicado em: 2019-02
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6. Utilization of gypsum from construction and demolition waste in Portland cement mortar
Abstract Civil construction generates the largest amount of construction and demolition waste (CDW), most of which is not reused and is discarded as inert waste in landfills. The purpose of this study was to evaluate the feasibility of reusing gypsum recovered from CDW in the preparation of mortar. This material was examined to determine its specific mass, m
Cerâmica. Publicado em: 2019-01
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7. Mycobacterium paratuberculosis detection in cow's milk in Argentina by immunomagnetic separation-PCR
Abstract The aim of this study was to standardize a diagnosis procedure to detect Mycobacterium avium subsp. paratuberculosis (Map) DNA in raw cow milk samples under field conditions. A procedure that combines both immunomagnetic separation and IS900 -PCR detection (IMS-IS1 PCR) was employed on milk samples from 265 lactating Holstein cows from Map infected
Braz. J. Microbiol.. Publicado em: 2016-06
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8. Produção de painéis de partículas orientadas (OSB) a partir da madeira de um híbrido de Pinus elliottii var. elliottii var. Pinus caribaea var. hondurensis / Production of oriented strand board (OSB) from a hybrid of Pinus elliottii var. elliottii x Pinus caribaea var. hondurensis
The study about the quality of the wood of Pinus hybrids in Brazil is still recent. On the other hand, some data indicate that the material can be considered promising from the point of view silvicultural. This study aimed to evaluate the potential use of wood hybrid Pinus elliottii var. elliottii x Pinus caribaea var. hondurensis for the production of orien
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/06/2012
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9. Método de dosagem de concreto pelo volume de pasta com emprego de cinza volante / Concrete mix-proportioning method by cement paste volume using fly ash
This study was developed in order to create and a streamlined methodology of concrete mix proportioning using fly ash to reduce the cement content and an intensive use of a pollutant contributing to the increase of sustainability in construction through reducing consumption of clínquer and the release of carbono dioxide to the atmosphere. It was established
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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10. Estudo da ação de diferentes proporções de torta de castanha do brasil sobre a concentração dos hormonios da tireoide, niveis sanguineos de glutationa reduzida e alguns parametros metabolicos em ratos Wistar / Study of the action of different proportions of Brazil nut deffated cake on the concentration of thyroid hormones, blood levels of reduced glutathione and some metabolic parameters in rats
O objetivo do presente trabalho foi o de avaliar os efeitos do selênio oriundo da torta de castanha do Brasil sobre a concentração dos hormônios da tireóide, níveis de glutationa reduzida e alguns parâmetros bioquímicos de ratos Wistar decorrentes da ingestão de dietas com diferentes proporções de torta de castanha. Assim, o estudo se iniciou com
Publicado em: 2009
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11. Estudo comparativo de colágeno hidrolisado e comercial com adição de PVA / Comparative study of commercial and anionic collagen blended with PVA
The development of new materials has been based on the mix of two or more polymers or biopolymers where solutions are mixed in different portions trying to get materials with distinct properties from their precursors. In this work different collagen solutions and collagen-PVA blends were analyzed. The used collagen was the type I, however obtained from two d
Publicado em: 2009
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12. Process parameter optimization for fly ash brick by Taguchi method
This paper presents the results of an experimental investigation carried out to optimize the mix proportions of the fly ash brick by Taguchi method of parameter design. The experiments have been designed using an L9 orthogonal array with four factors and three levels each. Small quantity of cement has been mixed as binding materials. Both cement and the fly
Materials Research. Publicado em: 2008-06