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Erika Yukari Nakanishi
Research and Development Institute for the Agri-Environment, 2700, Rue Einstein, Quebec City, QC G1P 3W8, Canada

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Review
Published: 22 May 2021 in Sustainability
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Sometimes the contamination in pig facilities can persist even after the washing and disinfection procedure. Some factors could influence this persistence, such as bacteria type, biofilm formation, material type and washing parameters. Therefore, this review summarizes how the type of surface can influence bacteria colonization and how the washing procedure can impact sanitary aspects, considering the different materials used in pig facilities. Studies have shown that biofilm formation on the surface of different materials is a complex system influenced by environmental conditions and the characteristics of each material’s surface and group of bacteria. These parameters, along with the washing parameters, are the main factors having an impact on the removal or persistence of biofilm in pig facilities even after the cleaning and disinfection processes. Some options are available for proper removal of biofilms, such as chemical treatments (i.e., detergent application), the use of hot water (which is indicated for some materials) and a longer washing time.

ACS Style

Erika Nakanishi; Joahnn Palacios; Stéphane Godbout; Sébastien Fournel. Interaction between Biofilm Formation, Surface Material and Cleanability Considering Different Materials Used in Pig Facilities—An Overview. Sustainability 2021, 13, 5836 .

AMA Style

Erika Nakanishi, Joahnn Palacios, Stéphane Godbout, Sébastien Fournel. Interaction between Biofilm Formation, Surface Material and Cleanability Considering Different Materials Used in Pig Facilities—An Overview. Sustainability. 2021; 13 (11):5836.

Chicago/Turabian Style

Erika Nakanishi; Joahnn Palacios; Stéphane Godbout; Sébastien Fournel. 2021. "Interaction between Biofilm Formation, Surface Material and Cleanability Considering Different Materials Used in Pig Facilities—An Overview." Sustainability 13, no. 11: 5836.

Journal article
Published: 12 October 2020 in Journal of Wood Chemistry and Technology
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ACS Style

Matheus R. Cabral; Erika Y. Nakanishi; Mayara S. R. Franco; Sérgio F. Santos; Juliano Fiorelli. Treatments of residual pine strands: characterization and wood-cement-compatibility. Journal of Wood Chemistry and Technology 2020, 40, 396 -407.

AMA Style

Matheus R. Cabral, Erika Y. Nakanishi, Mayara S. R. Franco, Sérgio F. Santos, Juliano Fiorelli. Treatments of residual pine strands: characterization and wood-cement-compatibility. Journal of Wood Chemistry and Technology. 2020; 40 (6):396-407.

Chicago/Turabian Style

Matheus R. Cabral; Erika Y. Nakanishi; Mayara S. R. Franco; Sérgio F. Santos; Juliano Fiorelli. 2020. "Treatments of residual pine strands: characterization and wood-cement-compatibility." Journal of Wood Chemistry and Technology 40, no. 6: 396-407.

Journal article
Published: 25 February 2019 in Polymer Testing
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This paper studied two alternative polymeric films based on natural latex and rosin as a waterproofing coating for 3-layer sugarcane-bamboo-based particleboards (3LP). To study the roughness as well as evaluate the coating surfaces on the 3LP, scanning confocal electron microscopy (SCEM) was used. The wettability performance of the coatings was evaluated by the surface energy through the contact angle method. The 3LP coated thermal, physical and mechanical properties were evaluated following ASTM-E1530: 2011 and ABNT NBR 14810 standards, respectively. Physical results indicated latex and rosin coatings significantly decreased water permeability in the 3LP showing swelling in thickness (TS) values of 1.72 and 2.43%, respectively, when compared 3LP without coating (3LP-Control) of 12.90%. The latex and rosin coatings on the 3LP did not influence the thermal properties. Mechanical properties of modulus of rupture (MOR)and modulus of elasticity (MOE) under bending solicitation shown that all 3LP met the ANSI Standard A208.1–1999 requirements. Latex successfully formed a smooth and continuous film which covered the surface pores of the 3LP, whereas rosin did not form a smooth and continuous, forming only a thin film on the 3LP.

ACS Style

Erika Yukari Nakanishi; Matheus Roberto Cabral; Juliano Fiorelli; André Luís Christoforo; Paulo De Souza Gonçalves; Holmer Savastano Junior. Latex and rosin films as alternative waterproofing coatings for 3-layer sugarcane-bamboo-based particleboards. Polymer Testing 2019, 75, 284 -290.

AMA Style

Erika Yukari Nakanishi, Matheus Roberto Cabral, Juliano Fiorelli, André Luís Christoforo, Paulo De Souza Gonçalves, Holmer Savastano Junior. Latex and rosin films as alternative waterproofing coatings for 3-layer sugarcane-bamboo-based particleboards. Polymer Testing. 2019; 75 ():284-290.

Chicago/Turabian Style

Erika Yukari Nakanishi; Matheus Roberto Cabral; Juliano Fiorelli; André Luís Christoforo; Paulo De Souza Gonçalves; Holmer Savastano Junior. 2019. "Latex and rosin films as alternative waterproofing coatings for 3-layer sugarcane-bamboo-based particleboards." Polymer Testing 75, no. : 284-290.

Articles
Published: 18 October 2018 in Matéria (Rio de Janeiro)
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In recent years, agro-industrial residues have focused attention in the scientific community as a new source of pozzolans. In Brazil, for example, one of the wastes generated from agro-industrial activities comes from elephant grass that is cultivated as biomass for energy cogeneration. This study evaluated the effect of hot water treatment on the crystalline structure of elephant grass ashes calcinated in two different temperature (700 and 900°C). To study the chemical structure and the composition of the ashes the X-ray fluorescence (XRF) and X-ray diffractions (XRD) analyses were carried out. The results achieved in the present work shown that, elephant grass ashes meet the ASTM C-618 standard, for the minimum sum content of the silica (SiO2), aluminum (Al2O3) and iron (Fe2O3) oxides, of 50% to be considered as a pozzolanic material. The presence of an amorphous phase has been detected in all XRD patterns. The ashes calcinated at 700°C showed lower crystallinity and the treatment with hot water decreased crystallite size, i.e., the material became more amorphous. On the other hand, the ashes calcinated at 900°C, less reactive, had a lower content of K2O. Therefore, the hot water treatment was effective to reduce the potassium content in the ashes. Additionally, it contributed to reduce the crystallite size of silica in the ash calcinated at 700°C, while the effect is contrary to the ash calcinated at 900°C.

ACS Style

Erika Yukari Nakanishi; Valdemir Alexandre dos Santos; Matheus R Cabral; Sérgio Francisco Santos; Michelle Santos Rodrigues; Moisés Frías; Holmer Savastano Junior. Hot water treatment effect in the elephant grass ashes calcinated at different temperatures. Matéria (Rio de Janeiro) 2018, 23, 1 .

AMA Style

Erika Yukari Nakanishi, Valdemir Alexandre dos Santos, Matheus R Cabral, Sérgio Francisco Santos, Michelle Santos Rodrigues, Moisés Frías, Holmer Savastano Junior. Hot water treatment effect in the elephant grass ashes calcinated at different temperatures. Matéria (Rio de Janeiro). 2018; 23 (3):1.

Chicago/Turabian Style

Erika Yukari Nakanishi; Valdemir Alexandre dos Santos; Matheus R Cabral; Sérgio Francisco Santos; Michelle Santos Rodrigues; Moisés Frías; Holmer Savastano Junior. 2018. "Hot water treatment effect in the elephant grass ashes calcinated at different temperatures." Matéria (Rio de Janeiro) 23, no. 3: 1.

Journal article
Published: 01 October 2018 in Industrial Crops and Products
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Matheus R. Cabral; Erika Yukari Nakanishi; Gonzalo Mármol; Joahnn Palacios; Stéphane Godbout; Robert Lagacé; Holmer Savastano; Juliano Fiorelli. Potential of Jerusalem Artichoke (Helianthus tuberosus L.) stalks to produce cement-bonded particleboards. Industrial Crops and Products 2018, 122, 214 -222.

AMA Style

Matheus R. Cabral, Erika Yukari Nakanishi, Gonzalo Mármol, Joahnn Palacios, Stéphane Godbout, Robert Lagacé, Holmer Savastano, Juliano Fiorelli. Potential of Jerusalem Artichoke (Helianthus tuberosus L.) stalks to produce cement-bonded particleboards. Industrial Crops and Products. 2018; 122 ():214-222.

Chicago/Turabian Style

Matheus R. Cabral; Erika Yukari Nakanishi; Gonzalo Mármol; Joahnn Palacios; Stéphane Godbout; Robert Lagacé; Holmer Savastano; Juliano Fiorelli. 2018. "Potential of Jerusalem Artichoke (Helianthus tuberosus L.) stalks to produce cement-bonded particleboards." Industrial Crops and Products 122, no. : 214-222.

Journal article
Published: 01 September 2018 in Archives of Civil and Mechanical Engineering
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In the present study, physical, chemical, morphological, crystallographic analysis of the non-treated and treated (100 °C during 30 min) sugarcane bagasse fibers were examined. Sugarcane bagasse fibers pre-treatment effect on the Portland cement hydration was monitored by inhibition tests and differential scanning calorimetry in the first 24 h. Furthermore, 28 days age physical-mechanical properties of cement composite materials with sugarcane bagasse fibers were also evaluated. Inhibition index of treated sugarcane bagasse fibers was 5.9%, while for the non-treated sugarcane bagasse fibers it was 67.3%. Cement composites containing treated sugarcane bagasse fibers showed lower physical properties (water absorption and thickness swelling) than the cement composites reinforced with non-treated sugarcane bagasse fibers (p < 0.05). Likewise, mechanical properties under flexure (modulus of rupture, MOR, and modulus of elasticity, MOE) of cement composites with treated sugarcane bagasse fibers showed higher values than the cement composites with non-treated sugarcane bagasse fibers (p < 0.05), thus proving the pre-treatment efficiency on sugarcane bagasse fibers for cement composites.

ACS Style

Matheus R. Cabral; Erika Yukari Nakanishi; Valdemir Alexandre dos Santos; Joahnn H­. Palacios; Stéphane Godbout; Holmer Savastano Junior; Juliano Fiorelli. Evaluation of pre-treatment efficiency on sugarcane bagasse fibers for the production of cement composites. Archives of Civil and Mechanical Engineering 2018, 18, 1092 -1102.

AMA Style

Matheus R. Cabral, Erika Yukari Nakanishi, Valdemir Alexandre dos Santos, Joahnn H­. Palacios, Stéphane Godbout, Holmer Savastano Junior, Juliano Fiorelli. Evaluation of pre-treatment efficiency on sugarcane bagasse fibers for the production of cement composites. Archives of Civil and Mechanical Engineering. 2018; 18 (4):1092-1102.

Chicago/Turabian Style

Matheus R. Cabral; Erika Yukari Nakanishi; Valdemir Alexandre dos Santos; Joahnn H­. Palacios; Stéphane Godbout; Holmer Savastano Junior; Juliano Fiorelli. 2018. "Evaluation of pre-treatment efficiency on sugarcane bagasse fibers for the production of cement composites." Archives of Civil and Mechanical Engineering 18, no. 4: 1092-1102.

Journal article
Published: 01 September 2018 in Journal of Cleaner Production
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Commercial binders based on formaldehyde are the main adhesive to produce particleboards, however, these binders are harmful to human health and the environment. In this scenario, alternative binders are a possibility to reduce the formaldehyde content in the particleboards. Therefore, the focus of this original scientific study is to explore the thermal, physical and mechanical properties of particleboards produced with natural rubber latex as a potential polymeric binder. Bagasse-latex particleboard (BLP) with nominal density of 800 kg/m3, with different latex content: 28% (BLP-28), 42% (BLP-42) and 56% (BLP-56) by mass were evaluated. The quality of the particleboards produced was assessed by determining their thermal, physical and mechanical properties. The formation process of interfacial structure between sugarcane bagasse and latex was observed, configuring the adhesion of the two phases. The thermal conductivity of all the particleboard formulations showed attractive performance as thermal insulating material, considering that these are medium to high nominal density particleboards. According to physical tests, higher latex contents in the particleboard did not affect the density, however, it created a binder protection against water absorption. Contrarily, an increase in the latex content (as in BLP-56 formulation) did not cause increase in the mechanical properties under flexural loading. The BLP-42 particleboards performed better mechanically based on modulus of rupture (MOR) and modulus of elasticity (MOE) with average values of 6.32 MPa and 1275 MPa, respectively. These results indicated the potential use of latex natural rubber as an alternative to produce insulation particleboards in civil construction.

ACS Style

Erika Yukari Nakanishi; Matheus R Cabral; Paulo De Souza Gonçalves; Valdemir Santos; Holmer Savastano Junior. Formaldehyde-free particleboards using natural latex as the polymeric binder. Journal of Cleaner Production 2018, 195, 1259 -1269.

AMA Style

Erika Yukari Nakanishi, Matheus R Cabral, Paulo De Souza Gonçalves, Valdemir Santos, Holmer Savastano Junior. Formaldehyde-free particleboards using natural latex as the polymeric binder. Journal of Cleaner Production. 2018; 195 ():1259-1269.

Chicago/Turabian Style

Erika Yukari Nakanishi; Matheus R Cabral; Paulo De Souza Gonçalves; Valdemir Santos; Holmer Savastano Junior. 2018. "Formaldehyde-free particleboards using natural latex as the polymeric binder." Journal of Cleaner Production 195, no. : 1259-1269.

Journal article
Published: 07 July 2018 in Construction and Building Materials
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This study evaluated the technical viability and performance of two different production processes of 3-layer sugarcane-bamboo-based particleboard (3LP) (3LP-PL: pressing in each layer; and 3LP-NPL: non-pressing in each layer) throughout their thermal, physical, mechanical and microstructural properties. The thermal conductivity was determined according to the methodology established by ASTM-E1530: 2011. Physical and mechanical properties were evaluated following the ABNT NBR 14810:2013 Brazilian Standards recommendations. Microstructural properties of the 3LP studied was assessed by using the Micro-CT technique. Thermal conductivity values of both 3LP were lower than the value required by Brazilian Standards for wood-based particleboards. Physical results indicated that the non-pressing in each layer during the 3LP production resulted in less thickness swelling (TS) and water absorption (WA). Modulus of rupture (MOR) and modulus of elasticity (MOE) of the 3LP-NPL showed an increase of 38 and 29% compared to the 3LP-PL respectively. Additionally, an increase of 31% was found for the internal bond (IB) value of the 3LP-NPL compared to the 3LP-PL. Considering the results achieved for the 3-layer sugarcane-bamboo-based particleboard the non-pressing in each layer during production presented lower TS and WA values and higher MOR, MOE and IB values.

ACS Style

Erika Yukari Nakanishi; Matheus R Cabral; Juliano Fiorelli; Valdemir Santos; André Luís Christoforo; Holmer Savastano Junior. Study of the production process of 3-layer sugarcane-bamboo-based particleboards. Construction and Building Materials 2018, 183, 618 -625.

AMA Style

Erika Yukari Nakanishi, Matheus R Cabral, Juliano Fiorelli, Valdemir Santos, André Luís Christoforo, Holmer Savastano Junior. Study of the production process of 3-layer sugarcane-bamboo-based particleboards. Construction and Building Materials. 2018; 183 ():618-625.

Chicago/Turabian Style

Erika Yukari Nakanishi; Matheus R Cabral; Juliano Fiorelli; Valdemir Santos; André Luís Christoforo; Holmer Savastano Junior. 2018. "Study of the production process of 3-layer sugarcane-bamboo-based particleboards." Construction and Building Materials 183, no. : 618-625.

Journal article
Published: 01 June 2018 in Journal of Materials in Civil Engineering
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This study aimed to evaluate cement-bonded panels produced with sugarcane bagasse cured by accelerated carbonation at early ages. The cement-bonded bagasse panels produced were subjected to two separate curing processes: (1) curing for 2 days (48 h) in a climatic chamber, followed by 25 days in an air-saturated environment; and (2) curing for 2 days (48 h) in a climatic chamber, and after in environment with carbon dioxide (24 h), followed by 24 days in an air-saturated environment. After 28 days of curing, physical and mechanical characterizations were conducted following the recommendations of European regulations. The physical results of the cement-bonded bagasse panels were lower than that the required by international standards. Moreover, accelerated carbonation decreased the water absorption value by 37.29% and the thickness swelling value by 64.84%, i.e., there was an improvement on dimensional stability of the carbonated cement-bonded bagasse panels. In addition, accelerated carbonation increased the mechanical strength values in the bending of the modulus of rupture by 78.69% and the modulus of elasticity by 125.13% of the cement-bonded bagasse panels.

ACS Style

Matheus Roberto Cabral; Erika Yukari Nakanishi; Juliano Fiorelli. Cement-Bonded Panels Produced with Sugarcane Bagasse Cured by Accelerated Carbonation. Journal of Materials in Civil Engineering 2018, 30, 04018103 .

AMA Style

Matheus Roberto Cabral, Erika Yukari Nakanishi, Juliano Fiorelli. Cement-Bonded Panels Produced with Sugarcane Bagasse Cured by Accelerated Carbonation. Journal of Materials in Civil Engineering. 2018; 30 (6):04018103.

Chicago/Turabian Style

Matheus Roberto Cabral; Erika Yukari Nakanishi; Juliano Fiorelli. 2018. "Cement-Bonded Panels Produced with Sugarcane Bagasse Cured by Accelerated Carbonation." Journal of Materials in Civil Engineering 30, no. 6: 04018103.

Journal article
Published: 23 March 2018 in Materials and Structures
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This study aimed to assess the potential usage of balsa wood to produce cement-bonded particleboards as well as to study the effects of accelerated carbonation on the cement-bonded balsa particleboard. Particleboards were subjected to two different curing conditions, (1) conventional curing: control—curing for 48 h in a climatic chamber, followed by 25 days in a saturated environment (98 ± 2%) in sealed plastic bags at 23 °C, (2) accelerated carbonation—curing for 48 h in a climatic chamber, and then in environment with CO2 (24 h concentration of 15%), followed by 24 days in a saturated environment (98 ± 2%) in sealed plastic bags at 23 °C. After 28 days of curing, the particleboards degree of carbonation was evaluated by TG-DTG and XRD analysis. Thermal, physical and mechanical characterizations were conducted following the recommendations of ASTM-E1530 and DIN: 310, 322, 323 standards, respectively. Accelerated carbonation decreased the portlandite content and increased of calcium carbonate content of the studied particleboards. Thermal properties showed that the particleboards could be used as an insulation material in accordance to European Standard (BS EN 13986). Physical and mechanical properties of the studied materials showed that they are potential building particleboard, because this material satisfied the requirements of ISO 8335 standard.

ACS Style

Matheus R Cabral; Erika Yukari Nakanishi; Valdemir Alexandre dos Santos; Christian Gauss; Sergio Francisco Dos Santos; Juliano Fiorelli. Evaluation of accelerated carbonation curing in cement-bonded balsa particleboard. Materials and Structures 2018, 51, 52 .

AMA Style

Matheus R Cabral, Erika Yukari Nakanishi, Valdemir Alexandre dos Santos, Christian Gauss, Sergio Francisco Dos Santos, Juliano Fiorelli. Evaluation of accelerated carbonation curing in cement-bonded balsa particleboard. Materials and Structures. 2018; 51 (2):52.

Chicago/Turabian Style

Matheus R Cabral; Erika Yukari Nakanishi; Valdemir Alexandre dos Santos; Christian Gauss; Sergio Francisco Dos Santos; Juliano Fiorelli. 2018. "Evaluation of accelerated carbonation curing in cement-bonded balsa particleboard." Materials and Structures 51, no. 2: 52.

Journal article
Published: 01 June 2017 in Journal of Materials in Civil Engineering
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ACS Style

Matheus Roberto Cabral; Erika Yukari Nakanishi; Juliano Fiorelli. Evaluation of the Effect of Accelerated Carbonation in Cement–Bagasse Panels after Cycles of Wetting and Drying. Journal of Materials in Civil Engineering 2017, 29, 04017018 .

AMA Style

Matheus Roberto Cabral, Erika Yukari Nakanishi, Juliano Fiorelli. Evaluation of the Effect of Accelerated Carbonation in Cement–Bagasse Panels after Cycles of Wetting and Drying. Journal of Materials in Civil Engineering. 2017; 29 (6):04017018.

Chicago/Turabian Style

Matheus Roberto Cabral; Erika Yukari Nakanishi; Juliano Fiorelli. 2017. "Evaluation of the Effect of Accelerated Carbonation in Cement–Bagasse Panels after Cycles of Wetting and Drying." Journal of Materials in Civil Engineering 29, no. 6: 04017018.

Journal article
Published: 01 March 2016 in Journal of Cleaner Production
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In recent years, agro-industrial residues are focusing attention worldwide as a new source of pozzolans; in Brazil one of the wastes generated from agro-industrial activities comes from elephant grass that is cultivated as biomass for energy cogeneration. The goal of this paper is to analyze the influence of elephant grass, once activated at 700 °C for 1 h in electric furnace, on the evolution of the hydration reaction as well as physical and mechanical properties in blended cement elaborated with 20% of elephant grass ash. For the present study, different instrumental techniques of characterization and methodologies (XRF, XRD, TG/DTG, mercury porosimetry, isothermal calorimetry and mechanical strength) were used. The results obtained in the present work show, that due to its high pozzolanic activity, the elephant grass ash activated at 700 °C can be used as an alternative pozzolan in the blended cement manufacture. Additions of 20% of ash confirm the formation of CSH gels and hexagonal C4AH13 as main products from hydration as well as pozzolanic reaction. The 20% ash blended cement showed lower heat evolution than OPC and similar to the 20% silica fume blended cement, a 12% of reduction of compressive strength and an important reduction of pore sizes below 50 nm.

ACS Style

Erika Y. Nakanishi; Moisés Frías; Sérgio F. Santos; Michelle S. Rodrigues; Raquel Vigil de la Villa; Olga Rodriguez; Holmer Savastano Junior. Investigating the possible usage of elephant grass ash to manufacture the eco-friendly binary cements. Journal of Cleaner Production 2016, 116, 236 -243.

AMA Style

Erika Y. Nakanishi, Moisés Frías, Sérgio F. Santos, Michelle S. Rodrigues, Raquel Vigil de la Villa, Olga Rodriguez, Holmer Savastano Junior. Investigating the possible usage of elephant grass ash to manufacture the eco-friendly binary cements. Journal of Cleaner Production. 2016; 116 ():236-243.

Chicago/Turabian Style

Erika Y. Nakanishi; Moisés Frías; Sérgio F. Santos; Michelle S. Rodrigues; Raquel Vigil de la Villa; Olga Rodriguez; Holmer Savastano Junior. 2016. "Investigating the possible usage of elephant grass ash to manufacture the eco-friendly binary cements." Journal of Cleaner Production 116, no. : 236-243.

Journal article
Published: 06 January 2015 in Acta Scientiarum. Technology
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This work aimed at the construction and structural evaluation of modular panel with reforested wood, particleboards of sugarcane bagasse and a bi-component resin based on castor oil, for use in lateral closing for construction of crowding pens and chutes for cattle handling facilities. The quality of the particleboards was evaluated considering the requirements of NBR 14810 (ABNT, 2006) and A208.1 (ANSI, 1999). The structural performance of the modular panel was evaluated by the soft body impact testing. The results indicate that the particleboards have physical and mechanical properties that meet the minimum recommendations of the normative documents for structural use. The modular panel shows structural performance suitable to withstand impact loads equivalent to conditions of use, and can be used in cattle handling facilities.

ACS Style

Diogo De Lucca Sartori; Julio Cesar Machado Cravo; Nubia Garzon Barrero; Juliano Fiorelli; Holmer Savastano Júnior; Erika Yukari Nakanishi. Modular panel with wood and particleboards of sugarcane bagasse for cattle handling facilities. Acta Scientiarum. Technology 2015, 37, 3-9 .

AMA Style

Diogo De Lucca Sartori, Julio Cesar Machado Cravo, Nubia Garzon Barrero, Juliano Fiorelli, Holmer Savastano Júnior, Erika Yukari Nakanishi. Modular panel with wood and particleboards of sugarcane bagasse for cattle handling facilities. Acta Scientiarum. Technology. 2015; 37 (1):3-9.

Chicago/Turabian Style

Diogo De Lucca Sartori; Julio Cesar Machado Cravo; Nubia Garzon Barrero; Juliano Fiorelli; Holmer Savastano Júnior; Erika Yukari Nakanishi. 2015. "Modular panel with wood and particleboards of sugarcane bagasse for cattle handling facilities." Acta Scientiarum. Technology 37, no. 1: 3-9.

Journal article
Published: 01 December 2014 in Construction and Building Materials
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This work presents the behavior of two elephant grass ashes, as pozzolans, elephant grass cameroon (EGC) and napier (EGN), calcined under controlled conditions (700 °C). The ashes were initially submitted to a chemical treatment with HCl in order to reduce the potassium content. Both ashes showed high pozzolanic activity after 7 days of curing, with at least 85% of fixed lime. The thermogravimetric and micro-Raman analysis in elephant grass ashes/Ca(OH)2 pastes confirmed that the main hydrated phases during the pozzolanic reaction consisted of CSH gels, by the weight loss between 60 and 300 °C in TG analysis and the band at 680 cm-1 in Raman spectrums. Based on the achieved results, it is possible to conclude that elephant grass ashes can be used as supplementary cementing materials. © 2014 Elsevier Ltd.The authors would like to thank the FAPESP (Grant n°. 2011/16842-5, 2010/16524-0 and 2009/17293-5) and to CSIC-FAPESP program (Grant n° 2013/50790-8) for their financial support. The authors are also grateful to the Framework Agreement of Collaboration between IETcc/CSIC (Spain) and FZEA/USP (Brazil) and to CNPq (Grant #306386/2013-5).Peer Reviewe

ACS Style

Erika Yukari Nakanishi; Moisés Frías; Sagrario Martinez-Ramirez; Sergio Francisco Santos; Michelle S. Rodrigues; Olga Rodríguez; Holmer Savastano. Characterization and properties of elephant grass ashes as supplementary cementing material in pozzolan/Ca(OH)2 pastes. Construction and Building Materials 2014, 73, 391 -398.

AMA Style

Erika Yukari Nakanishi, Moisés Frías, Sagrario Martinez-Ramirez, Sergio Francisco Santos, Michelle S. Rodrigues, Olga Rodríguez, Holmer Savastano. Characterization and properties of elephant grass ashes as supplementary cementing material in pozzolan/Ca(OH)2 pastes. Construction and Building Materials. 2014; 73 ():391-398.

Chicago/Turabian Style

Erika Yukari Nakanishi; Moisés Frías; Sagrario Martinez-Ramirez; Sergio Francisco Santos; Michelle S. Rodrigues; Olga Rodríguez; Holmer Savastano. 2014. "Characterization and properties of elephant grass ashes as supplementary cementing material in pozzolan/Ca(OH)2 pastes." Construction and Building Materials 73, no. : 391-398.

Journal article
Published: 01 January 2014 in Química Nova
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Elephant grass ash (EGA) was produced at 700 °C, with two different treatments: hot water (EGAhw) or acid solution (EGAas). The efficiency of the treatments at removing the potassium oxide was evaluated with the aim of using the EGA as a pozzolanic mineral addition for cement-based composites. Characterizations were carried out by X-ray fluorescence (XRF), X-ray diffraction (XRD), pozzolanic activity by electric conductivity and application of the kinetic-diffusive model. The analysis evidenced that the chemical treatment was more efficient for removing potassium oxide. The pozzolanic activity test and the kinetic parameters for the EGAas indicated that this ash is suitable for cement-based composites

ACS Style

Erika Yukari Nakanishi; Ernesto Villar-Cociña; Sergio Francisco Santos; Michelle S. Rodrigues; Pedro S. Pinto; Holmer Savastano Junior. THERMAL AND CHEMICAL TREATMENTS FOR REMOVAL OF ALKALI OXIDES OF ELEPHANT GRASS ASHES. Química Nova 2014, 1 .

AMA Style

Erika Yukari Nakanishi, Ernesto Villar-Cociña, Sergio Francisco Santos, Michelle S. Rodrigues, Pedro S. Pinto, Holmer Savastano Junior. THERMAL AND CHEMICAL TREATMENTS FOR REMOVAL OF ALKALI OXIDES OF ELEPHANT GRASS ASHES. Química Nova. 2014; ():1.

Chicago/Turabian Style

Erika Yukari Nakanishi; Ernesto Villar-Cociña; Sergio Francisco Santos; Michelle S. Rodrigues; Pedro S. Pinto; Holmer Savastano Junior. 2014. "THERMAL AND CHEMICAL TREATMENTS FOR REMOVAL OF ALKALI OXIDES OF ELEPHANT GRASS ASHES." Química Nova , no. : 1.

Journal article
Published: 01 January 2014 in Ciência Rural
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A avicultura brasileira é uma atividade econômica com expressiva participação no agronegócio brasileiro, porém o setor se depara com desafios, entre esses, destaca-se o estresse térmico dos animais provocado pelas variações climáticas. Dentro desse contexto, este trabalho teve como objetivo estudar as propriedades térmicas de um forro ecológico de baixa densidade a base de partículas de resíduos agroindustriais (casca de amendoim e fibra de coco verde) aglutinadas com resina poliuretana bi-componente à base de óleo de mamona e avaliar seu desempenho quando aplicado como forro em galpões avícolas. Os resultados obtidos demonstram a eficiência do material quando aplicado como forro em aviários.

ACS Style

Julio Cesar Machado Cravo; Diogo De Lucca Sartori; Erika Yukari Nakanishi; Juliano Fiorelli; Júlio César De Carvalho Balieiro; Wilson Nunes Dos Santos. Forro ecológico de resíduos agroindustriais para galpões avícolas. Ciência Rural 2014, 44, 1466 -1471.

AMA Style

Julio Cesar Machado Cravo, Diogo De Lucca Sartori, Erika Yukari Nakanishi, Juliano Fiorelli, Júlio César De Carvalho Balieiro, Wilson Nunes Dos Santos. Forro ecológico de resíduos agroindustriais para galpões avícolas. Ciência Rural. 2014; 44 (8):1466-1471.

Chicago/Turabian Style

Julio Cesar Machado Cravo; Diogo De Lucca Sartori; Erika Yukari Nakanishi; Juliano Fiorelli; Júlio César De Carvalho Balieiro; Wilson Nunes Dos Santos. 2014. "Forro ecológico de resíduos agroindustriais para galpões avícolas." Ciência Rural 44, no. 8: 1466-1471.