Hydrated Lime
Mostrando 1-12 de 27 artigos, teses e dissertações.
-
1. Influência de aditivos químicos na produção de compósitos madeira-cimento de duas espécies tropicais da Amazônia
Resumo Este trabalho teve como objetivo avaliar o potencial de uso de três diferentes aditivos químicos (CaCl2, MgCl2 e cal hidratada) na produção de compósitos madeira-cimento manufaturados com a mistura de partículas de madeira de costaneira de piãozinho (Eschweilera coriaceae (DC.) Mart) e matá-mata-branco (Eschweilera odora (poepp.) Miers) e cime
Ciênc. Florest.. Publicado em: 02/12/2019
-
2. Avaliação do potencial reativo de adições de resíduos de blocos de cerâmica vermelha e de concreto cominuído de RCD em matriz cimentícia
Resumo Neste trabalho avaliou-se o potencial reativo de adições de resíduo de cerâmica vermelha (RCV) e de concreto de RCD, além de fíler calcário para referência. Avaliou-se o potencial pozolânico das adições por índice de atividade pozolânica (IAP) com cal, índice de desempenho (ID) com cimento, teor de hidróxido de cálcio fixado no Chapell
Cerâmica. Publicado em: 15/08/2019
-
3. 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
-
4. Optimal hydrated lime concentration in asphalt binder to improve photo degradation resistance
Abstract The effect of short-term oxidation, evaluated by using a Rolling Thin Film Oven Test, and the effect of weathering aging on the oxidation process of hydrated lime modified asphalts were studied. Hydrated lime (HL) has been known as an additive for asphalt mixtures and is now considered as a binder additive that increases asphalt mixture durability.
REM, Int. Eng. J.. Publicado em: 2018-04
-
5. Incorporation of ceramic waste into binary and ternary soil-cement formulations for the production of solid bricks
The incorporation of ceramic waste (CW) into solid bricks made with soil-cement mixtures has been studied in recent years. The aim of this study was to evaluate the physical and mechanical properties of solid bricks made with soil-cement mixtures uniaxially pressed with the addition of construction waste, having hydrated lime and CPII F-32 Portland cement as
Mat. Res.. Publicado em: 18/02/2014
-
6. Estudo da captura de dióxido de carbono por misturas de hidróxido de cálcio e óxido de magnésio em baixas temperaturas
The present work has studied the carbonation reaction of hydrated lime modified by small percentages of magnesium dioxide (MgO) by the carbon dioxide (CO2) from the exhaust gas of a petrol engine. For this purpose, spherical pellets of solid adsorbents were synthesized and submitted to carbonation essays in a lab-scale fixed bed reactor. The samples conversi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2012
-
7. Digestion of feed fractions and intake of heifers fed hydrolyzed sugarcane stored for different periods
The objective of this study was to evaluate, in Nellore heifers, intake and digestibility of hydrolyzed sugarcane stored for different periods. The experimental design used was a 4 × 4 Latin square, four diets, four Nellore heifers with ruminal cannulas (initial body weight 285.4±23.08 kg and average initial age 14 months) and four periods of 21 days. The
Revista Brasileira de Zootecnia. Publicado em: 2012-07
-
8. Evaluation of relative biological efficiency of additives in sugarcane ensiling
The objective of this study was to evaluate the effects of adding alkalis on the fermentative pattern, aerobic stability and nutritive value of the sugarcane silage. A completely randomized design with 6 additives in two concentrations (1 or 2%), plus a control group, totalizing 13 treatments [(6×2)+1] with four replications, was used. The additives were so
Revista Brasileira de Zootecnia. Publicado em: 2012-04
-
9. Uso de materais não convencionais para base de pavimentos asfálticos no muunicípio de Aparecida de Goiânia - GO / The use of non-conventional materials for asphalt pavements base in the city of Aparecida de Goiânia-GO
The city of Aparecida de Goiania-GO has a current estimate of 16,782,313 m of urban roads, and there are still 51.5% to be paved. However, the technical staff of the mayor is facing a challenge related to the purchase of lateritic gravel for paving of these streets. Taking into account that most roads in the city has a low volume of traffic (N ≤ 5.105)
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/03/2011
-
10. Influência da interação entre os parâmetros reológicos de argamassas e a área potencial de contato de substratos na aderência de argamassas de revestimento / Interaction between mortar rheological parameters and surface potential contact area on mortar renderings bond strength
and the shear bond strength of mortar rendering applied to concrete surfaces, this work intended to verify the influence of the interaction between surface potential contact area and mortar renderings¿ rheology on these performance properties. Moreover, this work has the objective to verify the influence of the mortar¿s rheology affected by the air-entrain
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
-
11. Recuperação da amônia liberada no processo de "air stripping" aplicado ao tratamento do lixiviado de aterros sanitários / Recovery of ammonia released from air stripping process applied to sanitary landfill leachate treatment
Sanitary landfill leachate is a pollutant liquid effluent mainly due to its high ammonia concentration. Its treatment is necessary due to environmental and labour legislation requirements, besides prevention of environmental impacts of leachate release in water bodies. This research proposes ammonia removal from leachate by air stripping process, which trans
Publicado em: 2010
-
12. Anaerobic sewage sludge treatment by liming / HIGIENIZAÇÃO DE LODO ANAERÓBIO DE ESGOTO POR MEIO ALCALINO ESTUDO DE CASO DA ETE LAGES APARECIDA DE GOIÂNIA - GO
The aim of the present study was to evaluate the efficiency of the alkaline treatment of sanitary sewage sludge produced in the upflow anaerobic sludge blanket (UASB) of the Lages Sewage Treatment Plant, located in Aparecida de Goiânia, GO, Brazil and operated by Saneamento de Goiás, S.A. Saneago. The sludge, which was dewatered into drying beds until a me
Publicado em: 2009