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Dissertations / Theses on the topic 'Pozzolana'

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Published: 4 June 2021
Last updated: 26 July 2025

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1

Vazifdar, Rukshana. "The addition of microsilicas to the ordinary Portland cement (OPC) system." Thesis, University of Greenwich, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309788.

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2

Nicotera, Marco Valerio. "Effetti del grado di saturazione sul comportamento di una pozzolana del napoletano." Doctoral thesis, La Sapienza, 1998. http://hdl.handle.net/11573/917002.

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3

Chang, E., E. Chang, J. Villalta, C. Fernandez, and G. Duran. "Improvement of physical, mechanical and strength behavior of cohesive soils with natural pozzolana and brick dust." Institute of Physics Publishing, 2020. http://hdl.handle.net/10757/651792.

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This research project seeks to improve soil properties through experimentation with geotechnical purposes. For this, will be used natural volcanic pozzolana in 5%, 10%, 15% and brick dust in 10% giving it a second reuse. The soil improvement will be analyzed with the proposed additions and its influence on the results. It is concluded that the addition improves the behavior of the soil by decreasing its plasticity index, increases the compaction index and improves the geotechnical parameters.
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4

Lindroos, Alf. "Carbonate phases in historical lime mortars and pozzolana concrete : implications for 14C dating /." Åbo : Department of geology and mineralogy, Åbo akademi university, 2005. http://catalogue.bnf.fr/ark:/12148/cb41081971h.

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5

Lima, Samantha Pinheiro Buás de. "Estudo da Produção e Aplicação em Pastas Cimentícias de Sílica Gel Proveniente das Cinzas da Casca do Arroz." Universidade Federal do Amazonas, 2009. http://tede.ufam.edu.br/handle/tede/3483.

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Made available in DSpace on 2015-04-22T22:08:53Z (GMT). No. of bitstreams: 1 Dissertacao Final Samantha Lima.pdf: 10148784 bytes, checksum: da28d9e29cbe9877d46e4cfcdfeb3027 (MD5) Previous issue date: 2009-05-18<br>Fundação de Amparo à Pesquisa do Estado do Amazonas<br>The experimental program of this research was developed in order to evaluate the silica gel performance in cement based pastes. Thus, parameters of silica gel from rice husk ash were studied extraction. The incorporation of silica gel was made by the partial replacement of 0%, 2,5% e 5% of the cement mass in 0,45 water-cement
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6

Vaníček, Štěpán. "Studium vlastností malt s pucolánově aktivními materiály." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227243.

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This thesis is focused on the study of the properties of mortars and pastes with active pozzolanic materials. It deals with monitoring cementitious composites which describes both the effect of compensation pozzolanic cement mortar admixtures active based on amorphous silica and the modifying polymeric additive. The main criteria for the assessment of these modified mortars and pastes are particularly adhesive and achieved strength compared with the reference mortar. The detailed work also examined the microstructure past through images from REM, records RTG, DTA and high pressure mercury poro
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7

Olekambainei, Arip-Kituyan Emmanuel. "The influence of moulding moisture content on the engineering properties of aggregate-lime-natural pozzolan mixes." Diss., Pretoria : [s.n.], 2004. http://upetd.up.ac.za/thesis/available/etd-06092005-094814.

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8

Barthelemy, Kévin. "Adsorption des anions phosphate par des composés ferriques en vue du traitement des eaux usées : approche en réacteur homogène et en mode hydrodynamique contrôlé." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0237.

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Les travaux présentés dans ce mémoire sont consacrés à l'étude des processus d'adsorption des anions phosphate par la rouille verte ferrique carbonatée et la ferrihydrite. L'objectif final vise une application au traitement des eaux usées en milieu rural. La synthèse des deux oxydes de fer a été réalisée et leurs propriétés physico-chimiques caractérisées. Un intérêt particulier a été consacré à comparer les propriétés structurales de la rouille verte ferrique en fonction de différents paramètres de synthèse. Une étude approfondie des propriétés physico-chimiques de surface de la ferrihydrite
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9

Hansen, Débora Magali. "Avaliação das propriedades pozolânicas de um resíduo de cerâmica vermelha para emprego como material cimentício suplementar." Universidade do Vale do Rio dos Sinos, 2016. http://www.repositorio.jesuita.org.br/handle/UNISINOS/5397.

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Submitted by Silvana Teresinha Dornelles Studzinski (sstudzinski) on 2016-06-15T15:50:42Z No. of bitstreams: 1 DÉBORA MAGALI HANSEN_.pdf: 2330600 bytes, checksum: 74a7605994355dc5762f8c364bddf4c9 (MD5)<br>Made available in DSpace on 2016-06-15T15:50:42Z (GMT). No. of bitstreams: 1 DÉBORA MAGALI HANSEN_.pdf: 2330600 bytes, checksum: 74a7605994355dc5762f8c364bddf4c9 (MD5) Previous issue date: 2016-03-30<br>CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>PROSUP - Programa de Suporte à Pós-Gradução de Instituições de Ensino Particulares<br>A destinação final ambientalm
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10

Kulasuriya, Chandana. "Alkali Pozzolan Cement for Integral Sustainability." Thesis, Curtin University, 2015. http://hdl.handle.net/20.500.11937/610.

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This thesis presents the design and development of an alternative cement called ‘Alkali Pozzolan Cement’ (APC) for ‘integral sustainability’. The term ‘integral sustainability’ is a philosophical concept that implies an integration of not only the aspects related to ecological sustainability, but also those of technological, economic and social sustainability. Accordingly, this research can be considered as engineering as well as philosophical research; hence, mixed research methods were adopted to achieve the research objectives.
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11

Uzal, Burak. "Properties And Hydration Of Cementitious Systems Containing Low, Moderate And High Amounts Of Natural Zeolites." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608974/index.pdf.

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The extent of the benefits provided by use of SCMs in cementitious systems increases as their percentage amounts in total binder increases. However, the proportion of SCMs in cementitious systems is limited, especially for natural pozzolans, by some factors such as increase in water requirement and decrease in rate of strength development. Therefore investigations are needed to increase the amount of natural pozzolans in blended cements or in concrete as much as possible without decreasing their performance. This aim requires studies on cementitious systems with more reactive natural pozzolans
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12

Prince, Agbodjan William. "Etude de la reactivite de materiaux naturels actives par voie thermique ou mecanique en vue de leur utilisation comme liant." Toulouse 3, 1987. http://www.theses.fr/1987TOU30077.

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Etude de la reactivite des silicoaluminates avec la chaux en presence de sulfates et de chlorures en vue de leur utilisation comme liant. On synthetise preferentiellement la gehlinite hydratee malgre la presence de portlandite, ce qui accroit la resistance et la stabilite des liants. Deux liants ternaires, a base d'argile activee et de chaux ont pu etre obtenus
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13

Tashima, Mauro Mitsuuchi [UNESP]. "Cinza de casca de arroz altamente reativa: método de produção, caracterização físico-química e comportamento em matrizes de cimento Portland." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/91490.

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Made available in DSpace on 2014-06-11T19:25:22Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-10-31Bitstream added on 2014-06-13T20:53:09Z : No. of bitstreams: 1 tashima_mm_me_ilha_prot.pdf: 3625758 bytes, checksum: 6fad98acc3467ec6096e67472b6e906d (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Universidade Politecnica de Valencia- Espanha<br>O presente trabalho apresenta um método de produção de cinza de casca de arroz (CCA) altamente reativa e de coloração clara, bem como o seu compor
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14

Acar, Ilker. "Characterization And Utilization Potential Of Class F Fly Ashes." Phd thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615688/index.pdf.

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In this thesis, characterization of two class F fly ashes (FA) from &Ccedil<br>atalagzi and Sug&ouml<br>z&uuml<br>thermal power plants were carried out and their utilization potentials in three different fields were examined. Characterization of sintered samples and determination of their utilization potentials in ceramic industry is the first research area in this thesis. For this purpose, the class F fly ash samples were first pressed into cylindrical specimen without the addition of any organic binders or inorganic additives, and then sintered to form ceramic materials. Effects of sinterin
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15

Tashima, Mauro Mitsuuchi. "Cinza de casca de arroz altamente reativa : método de produção, caracterização físico-química e comportamento em matrizes de cimento Portland /." Ilha Solteira : [s.n.], 2006. http://hdl.handle.net/11449/91490.

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Orientador: Jorge Luis Akasaki<br>Banca: Marco Antonio Moraes Alcantara<br>Banca: Antônio Alberto Nepomuceno<br>Resumo: O presente trabalho apresenta um método de produção de cinza de casca de arroz (CCA) altamente reativa e de coloração clara, bem como o seu comportamento em matrizes de cimento Portland com o intuito de avaliar a atividade pozolânica da CCA. O trabalho está dividido em quatro etapas, a saber: construção de um forno e produção da cinza de casca de arroz, caracterização físico-química da CCA, verificação da atividade pozolânica do material através de métodos instrumentais e, fi
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16

Claus, Julien. "Investigations on a new high-strength pozzolan foam material." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/31804.

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Thesis (M. S.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Doyoyo Mulalo; Committee Member: Will Kenneth; Committee Member: Yavari Arash. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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17

Over, Derya. "Early Heat Evolution In Natural Pozzolan-incorporated Cement Hydration." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614533/index.pdf.

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Portland cement hydration is an exothermic process. The heat evolved during the hydration process is especially important in mass concrete, and hot and cold weather concreting. Heat of hydration is affected by several factors like chemical composition of cement, fineness of cement and ambient temperature. The major aim of this thesis is to investigate the effect of cement composition and fineness, amount and composition of the fine portion (&lt<br>45 &micro<br>m) of natural pozzolan-incorporated cement on hydration heat. For this purpose, a portland cement and pozzolan-incorporated blended ce
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18

Elbadri, Hatim A. "The effect of pozzolans in the stabilization of sulfide tailings." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0028/MQ50603.pdf.

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19

Elbadri, Hatim A. "The effect of pozzolans in the stabilization of sulfide tailings /." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=21290.

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In recent years the disposal and the treatment of mine waste has been increasingly causing concern to the mining industry. One of the biggest challenges today is acid mine drainage (AMD), which is associated in particular with sulfide bearing tailings. As a consequence of AMD, heavy metals and sulfates are released into the environment.<br>This project has studied the effect of lime-based treatments in the stabilization of two sulfide tailings, one waste predominately containing pyrite minerals and the second containing pyrrhotite minerals. Different proportions of pozzolans (fly ash and slag)
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20

Christodoulou, George. "Freeze-thaw resistance and microstructural characteristics of concretes containing pozzolans." Thesis, University of South Wales, 2001. https://pure.southwales.ac.uk/en/studentthesis/freezethaw-resistance-and-microstructural-characteristics-of-concretes-containing-pozzolans(a9a15e52-b504-4894-8968-bd8a46d49237).html.

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The thesis describes a study undertaken to determine the effect of air entrainment on workability and air content of fresh concrete incorporating silica fume (SF), metakaolin (MK), fly ash (FA) and blends of FA and MK and to assess the effects of such pozzolans on freeze-thaw durability, air void system and microstructure of hardened concrete. Cement was partially replaced by various quantities of the pozzolanic materials. The results demonstrated that the increase in workability attributed to the air-entraining admixture was greater in MK concrete than in SF concrete and occurred for a greate
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21

Duru, Kevser. "Sulfate Resistance Of Blended Cements With Fly Ash And Natural Pozzolan." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607569/index.pdf.

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Numerous agents and mechanisms are known to affect the durability of a concrete structure during its service life. Examples include freezing and thawing, corrosion of reinforcing steel, alkali-aggregate reactions, sulfate attack, carbonation, and leaching by neutral or acidic ground waters. Among these, external sulfate attack was first identified in 1908, and led to the discovery of sulfate resistant Portland cement (SRPC). Besides SRPC, another way of coping with the problem of sulfate attack is the use of pozzolans either as an admixture to concrete or in the form of blended cements This
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22

Mason, Blair Joseph. "The Analysis of Taupo Pumice as an Effective Partial Cement Replacement in Concrete." Thesis, University of Canterbury. Geological Sciences, 2012. http://hdl.handle.net/10092/6825.

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Concrete is an integral material in modern infrastructural requirements worldwide. The production of Portland cement is however expensive, energy intensive, and results in globally significant greenhouse gas emissions. Natural pozzolans such as pumice can be used as a partial replacement for Portland cement in concrete, which can reduce production costs and greenhouse gas emissions, and improve concrete performance. A fluvial pumice deposit which may be suited for use as a natural pozzolan has been identified on the floodplains of the Waikato River. A sample was milled in Germany, and return
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23

Bordeian, Georgeta Simona. "Characterisation and properties of alkali activated pozzolanic materials." Thesis, Sheffield Hallam University, 2000. http://shura.shu.ac.uk/19371/.

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Many of the waste materials produced from modem heavy industries are pozzalans, which develop cementitious properties when finely divided in the presence of free lime. This property allows a potential industrial use for this waste as a cement replacement material in concrete. An example of such a waste material is blast furnace slag from the smelting of iron and steel. The US produces 26 million tons of blast furnace slag annually. Most of the slag is slowly cooled in air and it makes a poor pozzolan. Only 1.6 million tons of the slag is available in the granulated form, which is suitable as a
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Bondar, Dali. "Alkali activation of Iranian natural pozzolans for producing geopolymer cement and concrete." Thesis, University of Sheffield, 2009. http://etheses.whiterose.ac.uk/14553/.

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The challenge for the civil engineering community in the near future will be to realize the building of structures in harmony with the concept of sustainable development, through the use of high performance materials which have low environmental impact and can be produced at reasonable cost. Geopolymers are novel binder materials that could provide a route towards this objective. Although research on geopolymer has advanced, most of the previous research conducted on geopolymers has dealt with pastes and concentrated on the material's chemistry and microstructure. There is little information a
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25

Teixeira, Joelane Maria de Carvalho. "UtilizaÃÃo dos produtos da combustÃo do carvÃo mineral como aditivos na produÃÃo de argamassa para revestimento." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11115.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>A utilizaÃÃo de resÃduos como materiais alternativos tem se mostrado uma soluÃÃo satisfatÃria de acordo com vÃrias pesquisas realizadas. Os produtos da combustÃo do carvÃo mineral (PCCs) sÃo resÃduos que causam impacto ambiental, mas apresentam grande potencial de utilizaÃÃo no setor da construÃÃo civil na produÃÃo de argamassas e concretos. Apresentam elevado teor de sÃlica (SiO2), podendo ser utilizados como pozolanas. Esta pesquisa objetivou verificar a viabilidade da utilizaÃÃo dos produtos da combustÃo do carvÃo mineral em arg
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Grist, Ellen. "The implementation of innovative and sustainable construction materials." Thesis, University of Bath, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619149.

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This research uses a novel construction material (lime-pozzolan concrete) and real-world project (a school) as a vehicle for investigating the implementation or applied-innovation process in construction. The implementation of new technologies at a product-level is recognised to be an antecedent of technological change in the construction industry. A ‘real world’ construction project aiming to implement a novel lime-pozzolan concrete in the field, has been used as a process-tracing case study. Rigorous analysis of this case study project, expressly focusing on project-level communication, has
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27

Sio, Jeanette Dorol. "Influence of Pozzolanic Material in the Conversion and Corrosion Behaviour of Calcium Aluminate Cement." Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/12694.

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Calcium aluminate cement (CAC) is used as a protective lining to combat attack by microorganisms and their metabolic products on reinforced concrete sewer pipes. CAC corrosion behaviour is related to the conversion process of the aluminate hydrates. Full conversion can result to a 5-8 times increase in corrosion rate. Hence, understanding and controlling the rate and the processes that affect conversion is important in the effective use of CAC as a mitigation strategy against the attack of microorganisms. This study was focussed on the role of the pozzolanic material, i.e. fly ash, in supp
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28

Chapagain, Indra Prasad. "Mechanical properties of self-consolidating concrete with pozzolanic materials." FIU Digital Commons, 2008. http://digitalcommons.fiu.edu/etd/2111.

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Self-consolidating concrete has been described as the most revolutionary development in concrete technology in several decades with the ability to flow freely through closely spaced reinforcements, expel entrapped air and self compact without vibration. Since it was first developed in Japan in the early 1980's, major development in the chemical admixture technology has made SCC more viable. An experimental study was conducted to identify the mechanical properties of SCC by optimizing the use of pozzolanic materials and local aggregates with some proposed statistical models. The research was fo
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Duerden, Susan Lynn. "PFA morphology, pozzolanic activity and contribution to concrete performance." Thesis, University of Dundee, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327806.

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Ramezanianpour, Ali Akbar. "Properties and durability of pozzolanic cement mortars and concretes." Thesis, University of Leeds, 1987. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.640162.

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31

Rodier, Loïc. "Matériaux de construction en zone tropicale humide : Potentialités de sous-produits ou de matériaux naturels locaux en substitution ou addition à la matrice cimentaire." Thesis, Antilles-Guyane, 2014. http://www.theses.fr/2014AGUY0804/document.

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L’incorporation de sous-produits agricoles ou de matériaux naturels dans la matrice cimentaire confère des propriétés intéressantes aux composites élaborés. L’objectif de cette thèse est d’élaborer un matériau pouvant répondre aux exigences mécaniques, thermiques et de durabilité des matériaux de construction en zone tropicale humide. Dans un premier temps, l’activité pouzzolanique d’une pouzzolane naturelle, de cendres de tronc de bambou et de cendres de bagasse de canne à sucre ont été évaluées. L’influence de leur incorporation a été ensuite étudiée sur les propriétés mécaniques et la durab
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Ahmed, Mohammad Sharfuddin Aerospace Civil &amp Mechanical Engineering Australian Defence Force Academy UNSW. "Effects of systematic increase in pozzolanic materials on the mechanical, durability, and microstructural characteristics of concrete." Awarded by:University of New South Wales - Australian Defence Force Academy. School of Aerospace, Civil and Mechanical Engineering, 2007. http://handle.unsw.edu.au/1959.4/38645.

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The use of high performance concrete in construction has been enhanced by the use of pozzolanic materials. However, the use of these materials has not been optimized. Such optimization may be achieved by a systematic increase in the amount and combination of pozzolanic material additions, with accompanying studies of their effects on the mechanical, durability and microstructural characteristics of blended concrete. This work evaluated various concrete durability issues by studying systematic increases of pozzolanic materials such as fly ash and blast furnace slag (BFS) in the range of 25, 50
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Tank, Suresh Bhagwanji. "The use of condensed silica fume in Portland cement grouts." Thesis, University College London (University of London), 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307794.

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Meral, Cagla. "Using Perlite As A Pozzolanic Addition In Blended Cement Production." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/3/12605259/index.pdf.

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Perlite is a volcanic glass which has high amount of silica and alumina. Those properties make it a candidate, if finely ground, for being used as a pozzolan. The studies on the pozzolanic properties of perlite are very limited, and none of them has dealt with the use of perlite in the blended cement production. The aim of this study is to investigate the pozzolanic properties of perlite, and if appropriate to investigate perlite&rsquo<br>s usability in blended cement production. For this purpose, perlites from two different sources &ndash<br>Izmir and Erzincan - are used as replacement of
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Kalakada, Zameer. "Experimental Investigation on Recycled Glass Powder as a Pozzolanic Cement." Thesis, Griffith University, 2020. http://hdl.handle.net/10072/393612.

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Cement is the main ingredient in concrete, and the production of cement is a costly and energy absorbing process. In addition, production of cement ominously contributes to environmental pollution, as 1 ton of cement releases about 0.9 ton of CO2 in the atmosphere. Since cement is the material which is primarily responsible for the cost and the pollution, there is a critical need to develop materials which exhibit cementitious property and could be used as a substitute of cement. Supplementary Cementitious Materials (SCM), are substances which possess cementitious properties, hence they can be
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Aslan, Ozlem. "Predicting Long Term Strength Of Roller Compacted Concrete Containing Natural Pozzolan By Steam Curing." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607727/index.pdf.

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Roller Compacted Concrete (RCC) is new technology gaining popularity in the recent years due to its low cost, rapid construction, and using opportunity of by-products. RCC is widely used in the world. However, the use of RCC has been restricted to construction of few cofferdams, and limited to local use in dam construction up to date. In this thesis, two types of cement, two types of natural pozzolan, aggregates with varying gradations, and a type of water reducing chemical admixture were used. Prior to carrying out the tests, the chemical and physical properties of materials were determined.
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Guney, Bilge Alp. "Development Of Pozzolanic Lime Mortars For The Repair Of Historic Masonry." Phd thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614330/index.pdf.

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The use of lime mortars with pozzolanic additives is of special importance for the repair of historic masonry. In this study, the effect of pozzolanic materials on the final characteristics of mortars was investigated. Metakaolin, fly ash and historic brick powder were used as pozzolanic materials in mortar mixes with varying binder:pozzolan:aggregate ratios. Historic mortar samples from rubble stone masonry of Kahta Castle, a medieval structure in close vicinity of the Nemrut Dag Monument, were also investigated to serve as a starting point for the preparation of repair mortars. Physical and
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Cengiz, Okan. "Effects Of Pozzolan Incorporation And Curing Conditions On Strength And Water Resistance Of Natural Gypsum Pastes." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610922/index.pdf.

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ABSTRACT EFFECTS OF POZZOLAN INCORPORATION AND CURING CONDITIONS ON STRENGTH AND WATER RESISTANCE OF NATURAL GYPSUM PASTES Cengiz, Okan Ph.D., Department of Civil Engineering Supervisor : Prof. Dr. Turhan Y. Erdogan September 2009, 189 pages There are large reserves of gypsum rock (CaSO4&middot<br>2H2O) in Turkey and in various regions of the world. Heating gypsum rock to 140 - 190 0C causes it to lose three-fourths of its water molecules and turn into gypsum, called plaster of Paris<br>heat application over 190 0C results in loss of all the water molecules and this form of the material is cal
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RAHELIARILALAO-RANAIVO, RABEHAJA BIENVENUE. "Etude des caracteristiques thermiques et mecaniques de betons de pouzzolane." Paris 7, 1986. http://www.theses.fr/1986PA077220.

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Etude des pouzzolanes naturelles de l'ile de la reunion, comme composants de base de beton alleges, en soulignant les avantages thermiques. Proprietes chimiques, mineralogiques et physiques des granulats de pouzzolane. Adaptation d'une modelisation thermique pour les corps poreux, avec nouvelle methode de determination de la diffusivite. Description des appareillages de mesure de la conductivite et diffusivite thermiques, et presentation des resultat
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Waller, Vincent. "Relations entre composition des bétons, exothermie en cours de prise et résistance Fen compression." Marne-la-vallée, ENPC, 1999. http://www.theses.fr/1999ENPC9909.

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La maitrise des risques de fissuration d’origine thermique dans les structures en béton passe par la connaissance de l’exothermie qui accompagne l’hydratation des liants, en particulier dans le cas de liants mixtes contenant du ciment et des pouzzolanes (fumée de silice ou cendre volante silico-alumineuse). Les travaux présentés ici ont consisté à modéliser cette exothermie en fonction de la composition du béton, après une étude bibliographique sur le sujet et la réalisation d’une campagne expérimentale, comportant entre autres de nombreux essais calorimétriques, complétant les résultats trouv
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Dickie, Jennifer M. "Mineralogical and Geochemical Indicators of Subaerial Weathering in the Pozzolane Rosse Ignimbrite (Alban Hills Volcanic District, Italy)." Digital Archive @ GSU, 2010. http://digitalarchive.gsu.edu/geosciences_theses/23.

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The Pozzolane Rosse ignimbrite [PR] (457±4 ka) in the Alban Hills Volcanic District, Rome, Italy was exposed ~ 40 ka prior to a subsequent volcanic event which coverd it entirely. XRF, XRD, and clay separation results from PR samples from INGV and CA1 boreholes and Castel di Leva quarry show evidence of paleopedogenesis. All locations display loss of base cations, loss of K is consistent with XRD datat showing dissolution or alteration of leucite to analcime. Accumulation of Al and high L.O.I. support XRD evidence of 1:1 clay species at upper depth. Data suggest alteration extent can be determ
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KOTENG, DAVID OTIENO, and DAVID OTIENO KOTENG. "DEVELOPMENT OF HIGH-STRENGTH LIME-POZZOLANA PASTE." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/26218732227464273668.

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博士<br>國立臺灣科技大學<br>營建工程系<br>103<br>Limestone which produces lime is available in large quantities in many parts of the world. Continuous formation through the deposit of shells and skeletons of land and marine animals and organisms ensures that it will always be available and is thus a sustainable material. On the other hand, fly ash and silica fume are ready-to-use industrial wastes produced respectively during the burning of coal and in the manufacture of silicon and its alloys. These materials are ideal for the production of cement for the construction industry. Lower burning temperatures of
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Di, Fonzo Giada. "Analisi sperimentale e numerica del comportamento meccanico di chiodi infissi in una pozzolana non satura." Tesi di dottorato, 2008. http://www.fedoa.unina.it/3254/1/Giada_Di_Fonzo_tesi_dottorato.pdf.

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Preethi, R. K. "Studies on alkali activated compressed earth bricks for structural masonry." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/4834.

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Earth based construction materials are acknowledged as low carbon and low embodied energy materials. The investigations dealt in the thesis were mainly focused on exploring the geopolymer and lime-ground slag binders for the stabilised compressed earth bricks. A brief summary of the literature review on geopolymer and lime-pozzolana binders is presented. The thesis work is mainly based on experimental investigations. The initial part of the thesis presents the results of the investigations on the geopolymer stabilised compressed earth specimens and the brick specimens. Locally available red so
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Melo, João Paulo da Silva. "Incorporação de cal em misturas cimentícias com elevados teores de adições minerais." Master's thesis, 2012. http://hdl.handle.net/1822/29493.

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Dissertação de mestrado integrado em Engenharia Civil<br>A indústria do betão gera alguns problemas ambientais e de sustentabilidade associados à incorporação do Cimento Portland, cujo fabrico é, conforme sabido, altamente consumidor de energia e é responsável por cerca de 7% das emissões de CO2 para a atmosfera. As adições minerais Pozolânicas permitem substituir o Cimento, contribuindo com uma quantidade adicional de silicatos de cálcio hidratado (CSH). Para a formação do CSH adicional a pozolana tem de reagir com o hidróxido de cálcio proveniente da hidratação do Cimento, originando a
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Dash, Ashish Kumar. "Effect of Pozzolanas on Fiber Reinforced Concrete." Thesis, 2010. http://ethesis.nitrkl.ac.in/2032/1/FINAL_PROJECT_OF_M_TECH.pdf.

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High-performance concrete is defined as concrete that meets special combinations of performance and uniformity requirements that cannot always be achieved routinely using conventional constituents and normal mixing, placing, and curing practices. Ever since the term high-performance concrete was introduced into the industry, it had widely used in large-scale concrete construction that demands high strength, high flowability, and high durability. A high-strength concrete is always a high-performance concrete, but a high-performance concrete is not always a high-strength concrete. Durable concre
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Chen, Ian-Hau, and 陳彥豪. "Durability of Pozzolanic Concrete." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/16687691703131210544.

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Acharya, Indra Prasad. "Synthesis and Characterization of Geopolymers as Construction Materials." Thesis, 2014. http://etd.iisc.ac.in/handle/2005/2988.

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Geopolymers are a relatively new class of materials that have many broad applications, including use as substitute for ordinary Portland cement (OPC), use in soil stabilisation, fire resistant panels, refractory cements, and inorganic adhesives. Geopolymers are an alternative binder to Portland cement in the manufacture of mortars and concrete, as its three-dimensional alumino silicate network develops excellent strength properties. Use of geopolymers in place of ordinary Portland cement is also favoured owing to the possible energy and carbon dioxide savings. Geopolymer is typically synthesiz
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Acharya, Indra Prasad. "Synthesis and Characterization of Geopolymers as Construction Materials." Thesis, 2014. http://etd.iisc.ernet.in/handle/2005/2988.

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Geopolymers are a relatively new class of materials that have many broad applications, including use as substitute for ordinary Portland cement (OPC), use in soil stabilisation, fire resistant panels, refractory cements, and inorganic adhesives. Geopolymers are an alternative binder to Portland cement in the manufacture of mortars and concrete, as its three-dimensional alumino silicate network develops excellent strength properties. Use of geopolymers in place of ordinary Portland cement is also favoured owing to the possible energy and carbon dioxide savings. Geopolymer is typically synthesiz
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Hsieh, Rung-Ren, and 謝鎔任. "Effect of Pozzolans on Shear Behavior of Concrete Beams." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/73185473337130000136.

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碩士<br>國立中興大學<br>土木工程學系所<br>99<br>The purpose of this research is to investigate the shear behavior of reinforced concrete beams with the addition of pozzolans. A total of 20 beam specimens were fabricated in this study. All beam specimens were designed without shear reinforcement. The compressive strength of concrete in 10 of the beams was 31.30 MPa, and that in the other 10 was 51.00 MPa. Four substitute ratios of cement with slag(5 %,10 %,15 %,and 20 %), four substitute ratios of sand with fly ash(5 %,10 %,15 %,and 20 %), two substitute ratios of cement with silica fume(2.5 %,5 %), were use
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