Water Lime Ratio
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Efeitos do uso de areia de praia nas propriedades de argamassas mistas: análise da variação granulométrica
RESUMO Devido ao alto consumo de areia de rio na construção civil e sua extração abusiva, cujos resultados são a geração de diversos impactos ambientais, este estudo analisa a influência da utilização de areia de praia em substituição à areia proveniente de leito de rio na produção de argamassas de revestimento. A partir da areia de rio, foram
Matéria (Rio J.). Publicado em: 10/06/2019
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2. Modern High-Yielding Maize, Wheat and Soybean Cultivars in Response to Gypsum and Lime Application on No-Till Oxisol
ABSTRACT Modern maize, wheat, and soybean cultivars are usually characterized by a short cycle, high shoot-root ratio, and high responsiveness to nutrient input. Continuous no-tillage management (NTS) frequently leads to a steep gradient in soil chemical quality with depth, thus decreasing yield under conditions of acid subsoil and water stress. This study a
Rev. Bras. Ciênc. Solo. Publicado em: 09/11/2017
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3. Tratamento de Ãgua residuÃria de fecularia em reator anaerÃbio com leito fixo de pedras de calcÃrio dolomÃtico / Starch wastewater treatment in anaerobic reactor containing Dolomitic limestone
The cassava processing for starch or flour production generates some wastewater (manipueira) with high organic load and toxic compounds, which cause environmental degradation. In the western Paranà region, there are several starch factories, so its waste generation is a concern for the correct treatment and disposal. Thus, anaerobic reactors are a cost-effe
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/02/2012
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4. Calda sulfocálcica em pomares de citros: evolução da resistência em Brevipalpus phoenicis (Acari: Tenuipalpidae) e impacto sobre Iphiseiodes zuluagai (Acari: Phytoseiidae) / Lime sulfur in citrus groves: resistance evolution in Brevipalpus phoenicis (Acari: Tenuipalpidae) and impact on Iphiseiodes zuluagai (Acari: Phytoseiidae)
The use of the lime sulfur as an alternative product for controlling Brevipalpus phoenicis (Geijskes) has intensified in Brazilian citrus groves. The lime sulfur is the only efficient product used to control B. phoenicis and certified by organic producers with an average of 11 sprayings per year. Due to intense use of this product, the major objectives of th
Publicado em: 2010
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5. Parâmetros de controle da resistência mecânica de solos tratados com cal, cimento e rocha basáltica pulverizada / Key parameters for strength control of soils treated with lime, cement and pulverized basaltic rock
Cada vez mais freqüente a utilização de técnicas tradicionais da engenharia geotécnica depara-se com obstáculos de caráter econômico e ambiental. A técnica do solo-cal torna-se atrativa quando o melhoramento das propriedades do solo do local constitui-se numa alternativa de projeto. A técnica de tratamento de solos com cal encontra aplicação, por
Publicado em: 2008
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6. CaracterizaÃÃo e variabilidade espacial de Atributos FÃsicos em um Argissolo Amarelo no estado do Cearà / Characterization to spatial variability of physical attributes of a alfisols in the state of the CearÃ
The objective of this research was characterize and determine to spatial variability of physical attributes of a Alfisols, using methods geostatistical e and making of surface maps for the method of Kriging, in two soil depths. They were made soil collections in regular intervals of 2.5 m, in an area of 400 m2, being 81 points in each one of the layers (0 â
Publicado em: 2007
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7. Impact of use and management on the organic matter fractions of latosols from the Rio das Mortes Basin. / Impacto de uso e manejo em fraÃÃes da matÃria orgÃnica de latossolos da Bacia do Rio das Mortes - MG
Rio das Mortes basin is an important area of coffee and potato production in Minas Gerais state (Brazil). In these crops, it is frequent the application of lime and phosphorus, as well as the use of practices of intensive revolving of soil, especially in potato croplands. Although these management practices are important for agricultural process, they affect
Publicado em: 2007
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8. 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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9. CARBONATION OF CONCRETES WITH HIGH AMOUNT OF MINERAL ADDITIONS AND HYDRATED LIME / CARBONATAÇÃO DE CONCRETOS COM ALTOS TEORES DE ADIÇÕES MINERAIS E CAL HIDRATADA
The present worked aimed to study the effect of the addition of lime hydrated on the carbonation of concretes with high amount of mineral additions of fly ash, rice husk ash and blast furnance slag, in binary and ternary mixtures. The amount substitution varied of 50% to 90% of cement mass. The amount of lime were of 15% and 18%, on the aglomerant mass. They
Publicado em: 2003