Suzanne Pickering, Gilberto Betancor, Rui Pedro Galão, Blair Merrick, Adrian W. Signell, Harry Wilson, Mark Tan Kia Ik, Jeffrey Seow, Carl Graham, Sam Acors, Neophytos Kouphou, Kathryn J. A. Steel, Oliver Hemmings, Amita Patel, Gaia Nebbia, Sam Douthwaite, Lorcan O’Connell, Jakub Lupták, Laura E. McCoy, Philip J. M. Brouwer, Marit J. van Gils, Rogier W. Sanders, Rocio Martinez Nunez, Karen Bisnauthsing, Geraldine O’Hara, Eithne MacMahon, Rahul Batra, Michael H. Malim, Stuart J. D. Neil, Katie J. Doores, Jonathan D. Edgeworth,
There is a clear requirement for an accurate SARS-CoV-2 antibody test, both as a complement to existing diagnostic capabilities and for determining community seroprevalence. We therefore evaluated the performance of a variety of antibody testing technologies and their potential use as diagnostic tools. Highly specific in-house ELISAs were developed for the detection of anti-spike (S), -receptor binding domain (RBD) and -nucleocapsid (N) antibodies and used for the cross-comparison of ten commercial serological ...
Tópico(s): COVID-19 Clinical Research Studies
2020 - Public Library of Science | PLoS Pathogens
Rui Pedro Galão, Suzanne Pickering, Rachel Curnock, Stuart J. D. Neil,
Tetherin (BST2/CD317) restricts the release of enveloped viral particles from infected cells. Coupled to this virion retention, hominid tetherins induce proinflammatory gene expression via activating NF-κB. We investigated the events initiating this tetherin-induced signaling and show that physical retention of retroviral particles induces the phosphorylation of conserved tyrosine residues in the cytoplasmic tails of tetherin dimers. This phosphorylation induces the recruitment of spleen tyrosine ...
Tópico(s): Herpesvirus Infections and Treatments
2014 - Cell Press | Cell Host & Microbe
María José Lista, Helena Winstone, Harry Wilson, A. Stephens Dyer, Suzanne Pickering, Rui Pedro Galão, Giuditta De Lorenzo, Vanessa M. Cowton, Wilhelm Furnon, Nicolás M. Suárez, Richard Orton, Massimo Palmarini, Arvind H. Patel, Luke B. Snell, Gaia Nebbia, Chad M. Swanson, Stuart J. D. Neil,
The appearance of new dominant variants of concern (VOC) of severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) threatens the global response to the coronavirus disease 2019 (COVID-19) pandemic. Of these, the alpha variant (also known as B.1.1.7), which appeared initially in the United Kingdom, became the dominant variant in much of Europe and North America in the first half of 2021. The spike (S) glycoprotein of alpha acquired seven mutations and two deletions compared to the ancestral ...
Tópico(s): COVID-19 Clinical Research Studies
2022 - American Society for Microbiology | Journal of Virology
Rui Pedro Galão, Harry Wilson, Kristina L. Schierhorn, Franka Debeljak, Bianca S. Bodmer, Daniel H. Goldhill, Thomas Hoenen, Sam J. Wilson, Chad M. Swanson, Stuart J. D. Neil,
Ebola virus (EBOV) causes highly pathogenic disease in primates. Through screening a library of human interferon-stimulated genes (ISGs), we identified TRIM25 as a potent inhibitor of EBOV transcription-and-replication-competent virus-like particle (trVLP) propagation. TRIM25 overexpression inhibited the accumulation of viral genomic and messenger RNAs independently of the RNA sensor RIG-I or secondary proinflammatory gene expression. Deletion of TRIM25 strongly attenuated the sensitivity of trVLPs ...
Tópico(s): interferon and immune responses
2022 - Public Library of Science | PLoS Pathogens
Suzanne Pickering, Rahul Batra, Blair Merrick, Luke B. Snell, Gaia Nebbia, Sam Douthwaite, Fiona Reid, Amita Patel, Mark Tan Kia Ik, Bindi Patel, Themoula Charalampous, Adela Alcolea-Medina, María José Lista, Penelope R. Cliff, Emma Cunningham, Jane Mullen, Katie J. Doores, Jonathan D. Edgeworth, Michael H. Malim, Stuart J. D. Neil, Rui Pedro Galão,
SummaryBackgroundLateral flow devices (LFDs) for rapid antigen testing are set to become a cornerstone of SARS-CoV-2 mass community testing, although their reduced sensitivity compared with PCR has raised questions of how well they identify infectious cases. Understanding their capabilities and limitations is, therefore, essential for successful implementation. We evaluated six commercial LFDs and assessed their correlation with infectious virus culture and PCR cycle threshold (Ct) values.MethodsIn ...
Tópico(s): Biosensors and Analytical Detection
2021 - Elsevier BV | The Lancet Microbe
Liane Dupont, Luke B. Snell, Carl Graham, Jeffrey Seow, Blair Merrick, Thomas Lechmere, Thomas J. A. Maguire, Sadie R. Hallett, Suzanne Pickering, Themoula Charalampous, Adela Alcolea-Medina, Isabella Huettner, Jose M. Jiménez-Guardeño, Sam Acors, Nathalia Almeida, Daniel Cox, Ruth E. Dickenson, Rui Pedro Galão, Neophytos Kouphou, Marie Jose Lista, Ana María Ortega-Prieto, Harry Wilson, Helena Winstone, Cassandra Fairhead, Jia Su, Gaia Nebbia, Rahul Batra, Stuart J. D. Neil, Manu Shankar‐Hari, Jonathan D. Edgeworth, Michael H. Malim, Katie J. Doores,
COVID-19 vaccine design and vaccination rollout need to take into account a detailed understanding of antibody durability and cross-neutralizing potential against SARS-CoV-2 and emerging variants of concern (VOCs). Analyses of convalescent sera provide unique insights into antibody longevity and cross-neutralizing activity induced by variant spike proteins, which are putative vaccine candidates. Using sera from 38 individuals infected in wave 1, we show that cross-neutralizing activity can be detected ...
Tópico(s): Long-Term Effects of COVID-19
2021 - Nature Portfolio | Nature Microbiology
Luke B. Snell, Chloe L. Fisher, Usman Taj, Oliver Stirrup, Blair Merrick, Adela Alcolea-Medina, Themoula Charalampous, Adrian W. Signell, Harry Wilson, Gilberto Betancor, Mark Tan Kia Ik, Emma Cunningham, Penelope R. Cliff, Suzanne Pickering, Rui Pedro Galão, Rahul Batra, Stuart J. D. Neil, Michael H. Malim, Katie J. Doores, Sam Douthwaite, Gaia Nebbia, Jonathan D. Edgeworth, Ali Raza Awan,
To analyse nosocomial transmission in the early stages of the coronavirus 2019 (COVID-19) pandemic at a large multisite healthcare institution. Nosocomial incidence is linked with infection control interventions.Viral genome sequence and epidemiological data were analysed for 574 consecutive patients, including 86 nosocomial cases, with a positive PCR test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) during the first 19 days of the pandemic.Forty-four putative transmission clusters ...
Tópico(s): SARS-CoV-2 detection and testing
2021 - Elsevier BV | Clinical Microbiology and Infection
María José Lista, Pedro M. Matos, Thomas J. A. Maguire, Kate Poulton, Elena Ortiz‐Zapater, Robert L. Page, Helin Sertkaya, Ana María Ortega-Prieto, Edward J. Scourfield, Aoife M. O’Byrne, Clément R. Bouton, Ruth E. Dickenson, Mattia Ficarelli, Jose M. Jiménez-Guardeño, Mark Howard, Gilberto Betancor, Rui Pedro Galão, Suzanne Pickering, Adrian W. Signell, Harry Wilson, Penelope R. Cliff, Mark Tan Kia Ik, Amita Patel, Eithne MacMahon, Emma Cunningham, Katie J. Doores, Monica Agromayor, Juan Martin‐Serrano, Esperanza Perucha, Hannah E. Mischo, Manu Shankar‐Hari, Rahul Batra, Jonathan Edgeworth, Mark Zuckerman, Michael H. Malim, Stuart J. D. Neil, Rocío T. Martínez-Nuñez,
There is a worldwide need for reagents to perform SARS-CoV-2 detection. Some laboratories have implemented kit-free protocols, but many others do not have the capacity to develop these and/or perform manual processing. We provide multiple workflows for SARS-CoV-2 nucleic acid detection in clinical samples by comparing several commercially available RNA extraction methods: QIAamp Viral RNA Mini Kit (QIAgen), RNAdvance Blood/Viral (Beckman) and Mag-Bind Viral DNA/RNA 96 Kit (Omega Bio-tek). We also compared ...
Tópico(s): Biosensors and Analytical Detection
2021 - Public Library of Science | PLoS ONE
Beatriz del Moral Delgado, F. Javier Baeza, R. Navarro, Ó. Galao, E. Zornoza, José Ramón Navarro Vera, Catalina Farcas, P. Garcés,
Cement composites with hybrid conductive fillers carbon nanotubes (CNT) and graphite products (GP), have been tested as strain sensors under varying temperatures (0 °C–60 °C), and moisture conditions (0%–100% saturation degree (SD)). Cement pastes with 1% CNT and 5% GP (purified expanded graphite) presented resistivity values between 50 and 75 Ohm·cm, and their strain sensing response was observed to be independent of the loading conditions. However, the gage factor increased up to four times for higher ...
Tópico(s): Concrete Corrosion and Durability
2021 - Elsevier BV | Construction and Building Materials
Patrick Harrington, Katie J. Doores, Chandan Saha, Jamie Saunders, Fiona Child, Richard Dillon, Sukran Saglam, Kavita Raj, Donal P. McLornan, Daniele Avenoso, Shahram Kordasti, Amy O’Reilly, Andreas Espehana, Thomas Lechmere, Hataf Khan, Michael H. Malim, Claire Harrison, Varun Mehra, Hugues de Lavallade,
... A. Hemmings O. O'Byrne A. Kouphou N. Galao R.P. et al.Longitudinal observation and decline ...
Tópico(s): COVID-19 and healthcare impacts
2021 - Cell Press | Cancer Cell
Catalina Farcas, Ó. Galao, R. Navarro, E. Zornoza, F. Javier Baeza, Beatriz del Moral Delgado, R. Pla, P. Garcés,
Abstract This paper aims to study the viability of conductive cement paste and conductive concrete with the hybrid addition of carbon nanotubes (CNT) and graphite powder (GP) as a self-heating material for heating, ice formation prevention and de-icing in pavements. Different heating tests, ice-preventing tests and de-icing tests were performed with cement paste and concrete specimens. Results confirm that the conductive cement composites studied, with the addition of 1% CNT + 5% GP, exhibited heating, ...
Tópico(s): Concrete and Cement Materials Research
2021 - IOP Publishing | Smart Materials and Structures
Carl Graham, Jeffrey Seow, Isabella Huettner, Hataf Khan, Neophytos Kouphou, Sam Acors, Helena Winstone, Suzanne Pickering, Rui Pedro Galão, Liane Dupont, María José Lista, Jose M. Jiménez-Guardeño, Adam G. Laing, Yin Wu, Magdalene Joseph, Luke Muir, Marit J. van Gils, Weng M. Ng, Helen M. E. Duyvesteyn, Yuguang Zhao, Thomas A. Bowden, Manu Shankar‐Hari, Annachiara Rosa, Peter Cherepanov, Laura E. McCoy, Adrian Hayday, Stuart J. D. Neil, Michael H. Malim, Katie J. Doores,
Interaction of the SARS-CoV-2 Spike receptor binding domain (RBD) with the receptor ACE2 on host cells is essential for viral entry. RBD is the dominant target for neutralizing antibodies, and several neutralizing epitopes on RBD have been molecularly characterized. Analysis of circulating SARS-CoV-2 variants has revealed mutations arising in the RBD, N-terminal domain (NTD) and S2 subunits of Spike. To understand how these mutations affect Spike antigenicity, we isolated and characterized >100 monoclonal ...
Tópico(s): Viral gastroenteritis research and epidemiology
2021 - Cell Press | Immunity
Helena Winstone, María José Lista, Alisha C. Reid, Clément R. Bouton, Suzanne Pickering, Rui Pedro Galão, Claire Kerridge, Katie J. Doores, Chad M. Swanson, Stuart J. D. Neil,
The cellular entry of severe acute respiratory syndrome-associated coronaviruses types 1 and 2 (SARS-CoV-1 and -2) requires sequential protease processing of the viral spike glycoprotein. The presence of a polybasic cleavage site in SARS-CoV-2 spike at the S1/S2 boundary has been suggested to be a factor in the increased transmissibility of SARS-CoV-2 compared to SARS-CoV-1 by facilitating maturation of the spike precursor by furin-like proteases in the producer cells rather than endosomal cathepsins ...
Tópico(s): Phagocytosis and Immune Regulation
2021 - American Society for Microbiology | Journal of Virology
Beatriz del Moral Delgado, Ignacio Martı́n-Gullón, R. Navarro, Ó. Galao, F. Javier Baeza, E. Zornoza, Blanca Calderón, Isabel Rodríguez, Noelia Arnaiz, Miguel Sánchez, P. Garcés,
Different studies in the literature indicate the effectiveness of CNTs as reinforcing materials in cement-matrix composites due to their high mechanical strength. Nevertheless, their incorporation into cement presents some difficulties due to their tendency to agglomerate, yielding a non-homogeneous dispersion in the paste mix that results in a poor cement-CNTs interaction. This makes the surface modification of the CNTs by introducing functional groups on the surface necessary. In this study, three ...
Tópico(s): Concrete Corrosion and Durability
2020 - Multidisciplinary Digital Publishing Institute | Nanomaterials
Andrew M. Shaw, Christopher Hyde, Blair Merrick, Philip H. James-Pemberton, Bethany K. Squires, Rouslan V. Olkhov, Rahul Batra, Amita Patel, Karen Bisnauthsing, Gaia Nebbia, Eithne MacMahon, Sam Douthwaite, Michael H. Malim, Stuart J. D. Neil, Rocio Martinez Nunez, Katie J. Doores, Mark Tan Kia Ik, Adrian W. Signell, Gilberto Betancor, Harry Wilson, Rui Pedro Galão, Suzanne Pickering, Jonathan D. Edgeworth,
An evaluation of a rapid portable gold-nanotechnology measuring SARS-CoV-2 IgM, IgA and IgG antibody response to spike 1 (S1), spike 2 (S) and nucleocapsid (N) antigens using serum from 74 RNA(+) patients and RNA(+) 47 control patients.
Tópico(s): Advanced biosensing and bioanalysis techniques
2020 - Royal Society of Chemistry | The Analyst
Jeffrey Seow, Carl Graham, Blair Merrick, Sam Acors, Suzanne Pickering, Kathryn J. A. Steel, Oliver Hemmings, Aoife M. O’Byrne, Neophytos Kouphou, Rui Pedro Galão, Gilberto Betancor, Harry Wilson, Adrian W. Signell, Helena Winstone, Claire Kerridge, Isabella Huettner, Jose M. Jiménez-Guardeño, María José Lista, Nigel Temperton, Luke B. Snell, Karen Bisnauthsing, Amelia Moore, Adrian J. Green, Lauren Martinez, Brielle Stokes, Johanna Honey, Alba Izquierdo-Barras, Gill Arbane, Amita Patel, Mark Tan Kia Ik, Lorcan O’Connell, Geraldine O’Hara, Eithne MacMahon, Sam Douthwaite, Gaia Nebbia, Rahul Batra, Rocío T. Martínez-Nuñez, Manu Shankar‐Hari, Jonathan D. Edgeworth, Stuart J. D. Neil, Michael H. Malim, Katie J. Doores,
Antibody responses to SARS-CoV-2 can be detected in most infected individuals 10-15 d after the onset of COVID-19 symptoms. However, due to the recent emergence of SARS-CoV-2 in the human population, it is not known how long antibody responses will be maintained or whether they will provide protection from reinfection. Using sequential serum samples collected up to 94 d post onset of symptoms (POS) from 65 individuals with real-time quantitative PCR-confirmed SARS-CoV-2 infection, we show seroconversion ( ...
Tópico(s): SARS-CoV-2 detection and testing
2020 - Nature Portfolio | Nature Microbiology
Mattia Ficarelli, Harry Wilson, Rui Pedro Galão, Michela Mazzon, Irati Antzin-Anduetza, Mark Marsh, Stuart J. D. Neil, Chad M. Swanson,
CpG dinucleotides are suppressed in most vertebrate RNA viruses, including HIV-1, and introducing CpGs into RNA virus genomes inhibits their replication. The zinc finger antiviral protein (ZAP) binds regions of viral RNA containing CpGs and targets them for degradation. ZAP does not have enzymatic activity and recruits other cellular proteins to inhibit viral replication. We found that KHNYN, a protein with no previously known function, interacts with ZAP. KHNYN overexpression selectively inhibits ...
Tópico(s): RNA Research and Splicing
2019 - eLife Sciences Publications Ltd | eLife
Eduardo Luiz Longui, Ana T. D. Galão, Kishore S. Rajput, Antônio Carlos Galvão de Melo,
La madera varía entre las especies, desde la médula hasta la corteza, desde las raíces hasta la corona dentro de la misma planta, para garantizar la seguridad y la eficiencia hidráulica. La heterogeneidad de la madera de Inga laurina (Sw.) Willd. es aquí investigada, siendo una especie que prospera bien en todos los bosques brasileños importantes. La madera de tallo de I. laurina poseía vasos estrechos; fibras de paredes gruesas; rayos más anchos, altos y en mayor frecuencia, características que ...
Tópico(s): Wood Treatment and Properties
2018 - University of Murcia | Anales de Biología
F. Javier Baeza, Ó. Galao, Iñígo Vegas, M.J. Cano, P. Garcés,
The electrical resistivity of carbon fiber reinforced cement composites (CFRCC) has been widely studied for the functional applications of these composites. CFRCC with enhanced electrical properties can be used as strain or damage sensor, heating or deicing material, or anode in different electrochemical techniques, like chloride extraction or cathodic protection. In this work, carbon fiber reinforced cement mortars have been prepared using a conductive aggregate produced from the valorization of ...
Tópico(s): Advanced Energy Technologies and Civil Engineering Innovations
2018 - Elsevier BV | Construction and Building Materials
Ó. Galao, F. Javier Baeza, E. Zornoza, P. Garcés,
Cement composites with nano-additions have been vastly studied for their functional applications, such as strain and damage sensing. The capacity of a carbon nanofiber (CNF) cement paste has already been tested. However, this study is focused on the use of CNF cement composites as sensors in regular concrete samples. Different measuring techniques and humidity conditions of CNF samples were tested to optimize the strain and damage sensing of this material. In the strain sensing tests (for compressive ...
Tópico(s): Advanced Energy Technologies and Civil Engineering Innovations
2017 - Multidisciplinary Digital Publishing Institute | Nanomaterials
Josep Vilaplana, F. Javier Baeza, Ó. Galao, E.G. Alcocel, E. Zornoza, P. Garcés,
Alkaline activation has become a useful procedure to obtain high strength cement composites without Portland cement. Different industrial byproducts can be activated using this technique, e.g. blast furnace slag, fly ash or metakaolin. Thus a new generation of more sustainable composites is being developed. However, the main disadvantage of these composites is their high drying shrinkage strain. Among the different approaches to address this problem, shrinkage reducing admixtures are the most used, ...
Tópico(s): Innovative concrete reinforcement materials
2016 - Elsevier BV | Construction and Building Materials
Ó. Galao, Luis Bañón, F. Javier Baeza, Jesús Carmona Calero, P. Garcés,
This paper aims to study the feasibility of highly conductive carbon fiber reinforced concrete (CFRC) as a self-heating material for ice formation prevention and curing in pavements. Tests were carried out in lab ambient conditions at different fixed voltages and then introduced in a freezer at −15 °C. The specimens inside the freezer were exposed to different fixed voltages when reaching +5 °C for prevention of icing and when reaching the temperature inside the freezer, i.e., −15 °C, for curing of icing. ...
Tópico(s): Advanced Energy Technologies and Civil Engineering Innovations
2016 - Multidisciplinary Digital Publishing Institute | Materials
Produção Nacional
Revisado por pares
Mariana Machado Lemos Fochi, Sabrina Baring, Lígia Cosentino Junqueira Franco Spegiorin, Denise Cristina Mós Vaz-Oliani, Eloísa Aparecida Galão, Antônio Hélio Oliani, Luíz Carlos de Mattos, Cinara Cássia Brandão de Mattos,
Gestational Toxoplasma gondii infection is considered a major risk factor for miscarriage, prematurity and low birth weight in animals. However, studies focusing on this topic in humans are scarce. The objective of this study is to determine whether anti-Toxoplasma gondii maternal serum profiles correlate prematurity and low birth weight in humans. The study examined 213 pregnant women seen at the High-Risk Pregnancy Hospital de Base, São José do Rio Preto, São Paulo, Brazil. All serological profiles ( ...
Tópico(s): Heme Oxygenase-1 and Carbon Monoxide
2015 - Public Library of Science | PLoS ONE
Produção Nacional
Revisado por pares
Kelly Roberta Spacino, Elisângela Tavares da Silva, Karina Gomes Angilelli, Ivanira Moreira, Olívio Fernandes Galão, Dionísio Borsato,
Soybean oil is currently the most widely used raw material for biodiesel production, but its main fatty acids are unsaturated, which makes the addition of antioxidants necessary. This study used alcoholic extracts of natural antioxidants rosemary, oregano and basil to evaluate the protection factor in biodiesel. The analysis of total phenolics content of the extracts showed that the highest values were found for rosemary extract, followed by oregano and basil. Thermogravimetric analysis indicated ...
Tópico(s): Plant biochemistry and biosynthesis
2015 - Elsevier BV | Industrial Crops and Products
Produção Nacional
Revisado por pares
Frederico Augusto Cariello Delunardo, Luciano Rodrigues de Carvalho, Bruno Ferreira da Silva, Michel Galão, Adalberto Luís Val, Adriana Regina Chippari-Gomes,
This study explored the suitability of the seahorse Hippocampus reidi (Ginsburg, 1933) for assessing biomarkers of genotoxic effects and its use as a sentinel organism to detect the effects of acute exposure to petroleum hydrocarbons. Fish were exposed to three concentrations of crude oil (10, 20 and 30 g/kg) for 96 h, and the activity of phase II biotransformation enzyme glutathione S-transferase (GST) was measured. In addition, we performed genotoxicity assays, such as comet assay, micronucleus (MN) ...
Tópico(s): Environmental Toxicology and Ecotoxicology
2015 - Elsevier BV | Ecotoxicology and Environmental Safety
Ó. Galao, F. Javier Baeza, E. Zornoza, P. Garcés,
The viability of carbon nanofiber (CNF) composites in cement matrices as a self-heating material is reported in this paper.This functional application would allow the use of CNF cement composites as a heating element in buildings, or for deicing pavements of civil engineering transport infrastructures, such as highways or airport runways.Cement pastes with the addition of different CNF dosages (from 0 to 5% by cement mass) have been prepared.Afterwards, tests were run at different fixed voltages (50, ...
Tópico(s): Advanced Energy Technologies and Civil Engineering Innovations
2014 - Spanish National Research Council | Materiales de Construcción
María Del Carmen Camacho, Ó. Galao, F. Javier Baeza, E. Zornoza, P. Garcés,
In the present paper, changes in mechanical properties of Portland cement-based mortars due to the addition of carbon nanotubes (CNT) and corrosion of embedded steel rebars in CNT cement pastes are reported. Bending strength, compression strength, porosity and density of mortars were determined and related to the CNT dosages. CNT cement paste specimens were exposed to carbonation and chloride attacks, and results on steel corrosion rate tests were related to CNT dosages. The increase in CNT content ...
Tópico(s): Concrete and Cement Materials Research
2014 - Multidisciplinary Digital Publishing Institute | Materials
Joaquı́n Gomis, Ó. Galao, Vicente Gomis, E. Zornoza, P. Garcés,
This research studies the self-heating produced by the application of an electric current to conductive cement pastes with carbonaceous materials. The main parameters studied were: type and percentage of carbonaceous materials, effect of moisture, electrical resistance, power consumption, maximum temperature reached and its evolution and ice melting kinetics are the main parameters studied. A mathematical model is also proposed, which predicts that the degree of heating is adjustable with the applied ...
Tópico(s): Concrete Corrosion and Durability
2014 - Elsevier BV | Construction and Building Materials
Juan F. Arias, David T. Evans,
... virus release from infected cells. In this issue, Galão et al. (2014) provide important insights into the ...
Tópico(s): RNA regulation and disease
2014 - Cell Press | Cell Host & Microbe
F. Javier Baeza, J. Payá, Ó. Galao, José Miguel Saval, P. Garcés,
Binary and ternary combinations of sewage sludge ash (SSA) with marble dust (MD), fly ash (FA) and rice husk ash (RHA) as replacement in Portland cement pastes, were assessed. Several tests were carried out at different curing ages: thermogravimetry, density, water absorption, ultrasonic pulse velocity and mechanical strengths. Pozzolanic effects of the mineral admixtures, densities similar to control sample and improved absorptions when combining waste materials were identified. In general, the compressive ...
Tópico(s): Recycled Aggregate Concrete Performance
2014 - Elsevier BV | Construction and Building Materials