Výsledky vyhledávání

Performance evaluation of self-leveling mortars using phosphogypsum and white ceramic waste

Autor: Elayne Thais Gruber, Carmeane Effting, Adilson Schackow, Gabriela Azambuja Mendes

Publikováno v: Revista IBRACON de Estruturas e Materiais, Volume: 17, Issue: 1, Article number: e17103, Published: 26 MAY 2023

This study investigates the properties of self-leveling subfloor mortar mixtures with natural and calcined phosphogypsum waste in the form of calcium sulfate called anhydrite and white ceramic, by replacing 50% of the mass of Portland cement CP II Z-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52d4d2ada47050f7be021eafeae3a479
https://doi.org/10.1590/s1983-41952024000100003

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Propriedades reológicas e hidratação de cimentos ternários contendo resíduos de mármore, porcelanato, bloco cerâmico e fosfogesso

Autor: Costa, Ana Rita Damasceno, Gonçalves, Jardel Pereira

Publikováno v: Ambiente Construído v.22 n.4 2022
Ambiente construído
Associação Nacional de Tecnologia do Ambiente Construído (ANTAC)
instacron:ANTAC
Ambiente Construído; Vol. 22 No. 4 (2022)
Ambiente Construído; Vol. 22 Núm. 4 (2022)
Ambiente Construído; v. 22 n. 4 (2022)
Ambiente Construído, Volume: 22, Issue: 4, Pages: 59-75, Published: 09 SEP 2022

No research demonstrates the effect of combined waste raw materials as an alternative to natural sources in Limestone Calcined Clay Cement (LC3). In this context, this study aimed to evaluate the influence of the composition of ternary cements (TCs)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::019f989a96d2a5328ef6dcc99f3b48cf
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212022000400059

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Parâmetros de moagem e caracterização de resíduos sólidos para aplicação como materiais cimentícios suplementares

Autor: Costa, Ana Rita Damasceno, Gonçalves, Jardel Pereira

Despite the increasing number of publications on residual raw materials as supplementary cementitious materials (SCM), the milling beneficiation process and its parameters have been underexplored and presented. In this context, this study aims to eva

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::2a50fd9d5ea7648bfa171efe54f96b5a
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212022000400035

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Akademický článek

Soil fertility, nutrition and yield of maize and barley with gypsum application on soil surface in no-till

Autor: Leandro Michalovicz, Marcelo Marques Lopes Müller, José Salvador Simoneti Foloni, Jackson Kawakami, Ronaldo do Nascimento, Luiz Fernando Machado Kramer

Publikováno v: Revista Brasileira de Ciência do Solo, Vol 38, Iss 5, Pp 1496-1505 (2014)

Annual crop yield and nutrition have shown differentiated responses to modifications in soil chemical properties brought about by gypsum application. The aim of this study was to evaluate the effect of gypsum application rates on the chemical propert

Externí odkaz: https://doaj.org/article/03a6e0eedf3a44478087d9a2c06eb6d0

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Akademický článek

Use of nuclear technique in samples for agricultural purposes Uso de técnica nuclear em amostras de interesse na agricultura

Autor: Kerley A. P. de Oliveira, Maria Ângela B. C. Menezes, Vanusa M. F. Jacomino, Eduardo Von Sperling

Publikováno v: Engenharia Agrícola, Vol 33, Iss 1, Pp 46-54 (2013)

The concern related to environment is growing. Due to this, it is needed to determine chemical elements in a large range of concentration. The neutron activation technique (NAA) determines the elemental composition by the measurement of artificial ra

Externí odkaz: https://doaj.org/article/82d852c8b3c9411991ee747a91b70604

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Akademický článek

Structural quality of a no-tillage red latosol 50 months after gypsum aplication

Autor: Marcelo Marques Lopes Müller, Cassio Antônio Tormena, Aline Marques Genú, Luiz Fernando Machado Kramer, Leandro Michalovicz, Eduardo Fávero Caires

Publikováno v: Revista Brasileira de Ciência do Solo, Vol 36, Iss 3, Pp 1005-1014 (2012)

Gypsum application may enhance the soil quality for plants in terms of soil chemical and physical properties. The objective of this study was to evaluate the effects of gypsum application on the structural quality of a no-tillage Red Latosol. The exp

Externí odkaz: https://doaj.org/article/a1d94f5105514281a16ee81f2726dad4

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Akademický článek

Surface application of gypsum in low acidic Oxisol under no-till cropping system Aplicação superficial de gesso num Latossolo de baixa acidez sob sistema plantio direto

Autor: Eduardo Fávero Caires, Evandro Henrique Gonçalves Maschietto, Fernando José Garbuio, Susana Churka, Hélio Antonio Wood Joris

Publikováno v: Scientia Agricola, Vol 68, Iss 2, Pp 209-216 (2011)

The conditions in which a favorable response to a gypsum application can be expected on crop yields are not clear. A 3-year field trial was carried out to evaluate the effects of gypsum application on soil chemical attributes and nutrition and yield

Externí odkaz: https://doaj.org/article/87635bee4e014bdfb70718c99c1a6fe7

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Akademický článek

Radionuclides and heavy metal contents in phosphogypsum samples in comparison to cerrado soils Conteúdo de radionuclídeos e metais pesados em amostras de fosfogesso, comparativamente ao de solos de cerrado

Autor: Vanusa Maria Feliciano Jacomino, Kerley Alberto Pereira de Oliveira, Maria Helena Tirollo Taddei, Maria Célia Siqueira, Maria Eleonora Deschamps Pires Carneiro, Marcos Roberto Lopes Nascimento, David Faria da Silva, Jaime Wilson Vargas de Mello

Publikováno v: Revista Brasileira de Ciência do Solo, Vol 33, Iss 5, Pp 1481-1488 (2009)

Phosphogysum (PG) or agricultural gypsum, a solid waste from the phosphate fertilizer industry, is used as soil amendment, especially on soils in the Cerrado region, in Brazil. This material may however contain natural radionuclides and metals which

Externí odkaz: https://doaj.org/article/4e99cd30d99e4a45a72b9c39d48a4b32

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Dissertation/ Thesis

Disponibilidade de 210Po na utilização do fosfogesso na agricultura

Autor: Groppo, Guilherme Henrique

As indústrias de fertilizantes fosfatados no Brasil são responsáveis pela produção anual de 5,5x106 toneladas de um subproduto denominado fosfogesso (PG), que pode ser considerado como TENORM (Technologically Enhanced Naturally Occurring Radioac

Externí odkaz: http://www.teses.usp.br/teses/disponiveis/85/85131/tde-10112014-142103/

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Dissertation/ Thesis

Disponibilidade de 238U e 232Th na utilização de fosfogesso na agricultura

Autor: Malheiro, Luciano Hasimoto

O fosfogesso (FG), um subproduto da indústria de fosfato, é classificado como Material Radioativo de Ocorrência Natural Tecnologicamente Aumentado (TENORM) ou como um resíduo NORM. Ele é obtido durante o ataque da rocha fosfática com ácido sul

Externí odkaz: http://www.teses.usp.br/teses/disponiveis/85/85131/tde-13102014-131309/

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