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Dissertations / Theses on the topic 'Pozzolanic properties'

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1

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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2

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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3

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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4

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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5

Morel, Bayram Murat. "Investigation Of The Effects Of Temperature On Physical And Mechanical Properties Of Monolithic Refractory Made With Pozzolanic Materials." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12606700/index.pdf.

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In recent years, scientific studies are carried out to find new refractory material. Having good mechanical properties under very high temperatures, refractories are widely used in industries like iron, steel, glass, cement and pottery. Researches are focused on monolithic refractory making because of their superior properties comparing to conventional firebrick refractories. Providing a mono-block body, having no joints makes the monolithic refractories more durable at elevated temperatures. Easier production and installation are two main points that people are choosing monolithic refractorie
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6

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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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

Fazzan, João Victor. "Avaliação da reatividade da cinza do bagaço de cana-deaçúcar em concretos por meio do fator k de eficácia cimentante /." Ilha Solteira, 2017. http://hdl.handle.net/11449/151394.

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Orientador: Jorge Luis Akasaki<br>Resumo: Com a vigente expansão dos canaviais brasileiros, um estudo direcionado para os resíduos provenientes da cana-de-açúcar torna-se imprescindível no cenário atual. Neste sentido, pesquisas estão sendo desenvolvidas para a utilização de cinza do bagaço da cana-de-açúcar (CBC) em compósitos cimentícios, sendo que esta cinza é obtida a partir da queima do bagaço que é utilizado como combustível em processos de cogeração de energia. A CBC é predominantemente constituída de dióxido de silício, e esta característica tem conduzido à avaliação da potencialidade
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9

Pyreňová, Eliška. "Studium vlastností polymery modifikovaných malt využívající pucolánově aktivní materiály." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240307.

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This diploma thesis is focused on the study of the properties of polymer-modified cementitious mortars which using pozzolanic active materials based on amorphous silica. Explores the possibilities of using the recycled glass as a partial replacement of cement in PMM. Properties of mortars are reviewed in mineralogical and technological point of view. For specification of the results were used the analysis RTG, DTA and REM.
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10

Daher, Suzanne. "Optimisation de la formulation d'un béton de chanvre : effet des interactions physico-chimiques entre les particules végétales et le liant." Electronic Thesis or Diss., Amiens, 2022. http://www.theses.fr/2022AMIE0041.

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Le béton de chanvre est l'un des matériaux de construction biosourcés le plus en vogue en France. Il est souvent utilisé comme matériau de remplissage et/ou d'isolation, dans un système éco-constructif. Compte tenu de sa forte porosité, ce béton présente des performances thermiques et hygriques particulièrement intéressantes. Toutefois, alors que son niveau d'isolation thermique s'améliore lorsqu'on diminue sa densité, ce béton de chanvre voit parallèlement ses propriétés mécaniques diminuer. C'est la raison pour laquelle, il est nécessaire d'optimiser sa formulation, afin d'obtenir le meilleu
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11

Chengula, Duwa Hamisi [Verfasser]. "Improving Cementitious Properties of Blended Pozzolan Based Materials for Construction of Low Cost Buildings in Mbeya Region, Tanzania / Duwa Hamisi Chengula." Kassel : Kassel University Press, 2018. http://d-nb.info/115379599X/34.

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12

Vicentini, Alan Henrique. "Caracterização de um novo aglomerante originado da combustão da mistura de argila e biomassa." Ilha Solteira, 2018. http://hdl.handle.net/11449/154548.

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Orientador: Jorge Luís Akasaki<br>Resumo: A indústria cimenteira tem passado por pressões cada vez mais constantes, referentes aos impactos ambientais causados pela emissão de gases na produção de cimento Portland e, atualmente, pela crise econômica que o setor da construção civil vem passando. Estes acontecimentos têm levado pesquisadores a investigarem novas formas de se obter aglomerantes alternativos, de maneira mais sustentável e econômica. Aliada a este problema, está a geração de resíduos de biomassa provenientes da atividade agroindustrial. Uma das alternativas criadas para a redução d
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13

Rousková, Jana. "Vliv částečné náhrady portlandského cementu diatomitovou zeminou na vybrané parametry cementových malt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240275.

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The subject of this thesis is selected parameters cement mortars with partial replacement of Portland cement diatomaceous earth. This work provides information on the basic properties of diatomaceous earth and its deposits with a focus on deposit in Borovany. From the properties is very important pozzolanic activity due to the high content of amorphous silica of this soil. The main use of diatomaceous earth is in the area filtration and is used widely as a nutritional supplement. In the building industry, diatomite can be applied as an admixture to mortar and concrete, where it can, with its a
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14

Soyluoglu, Serdar. "Effects Of Separate And Intergrinding On Some Properties Of Portland Composite Cements." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12611365/index.pdf.

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In the production of cement, to increase the cement/clinker ratio and decrease CO2 emission, the most important alternative is to produce mineral admixture incorporated cements (CEM II-III-IV-V) instead of portland cement (CEM I). These cements are usually produced by intergrinding the portland cement clinker and the mineral admixtures. However, the difference between grindabilities of the different components of such cements may cause significant effects on the particle size distribution and many other properties. For this reason, separate grinding of additives and clinker may be thought as a
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15

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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16

Tsai, Yen-Kai, and 蔡焱凱. "Burgers Model to simulate the Damping Properties of Concrete adding Pozzolanic Materials." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/3xxya7.

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碩士<br>國立高雄應用科技大學<br>土木工程與防災科技研究所<br>102<br>Material damping ratio is a evaluate of material damping performance indicators, if the concrete structures have good self-damping properties of the impact load, wind and earthquakes have better soothing ability, using Burgers model to predict the mechanical damping properties of concrete pozzolan materials, pozzolanic materials furnace slag, fly ash and silica fume content of 0%, 10%, 20% and 30%, a total of 10 kinds of ratios, age 3 days, 7 days, 28 days and 56 days, the number of research participation have aggregate particle size, pozzolan, conten
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17

Jhang, Rong-Chen, and 張榮宸. "Effect of Engineering Properties on Cement Mortar with Pozzolanic and Rice Husk." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/40856300132756087305.

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碩士<br>國立雲林科技大學<br>營建工程系<br>102<br>In the developed countries, the fine aggregate of cement concrete is lack due to environment protection and over-exploitation of resources. Then, it is important to effectively re-use waste resources for example Pozzlanic and rice husk for concrete material to sustainable development. Moreover, the concrete industry are towards greening and energy-saving. This study investigates engineering properties of cement mortar with husk and pozzolanic (fly ash, slag). The test program includes slump flow test, the compressive strength and water absorption analysis of c
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18

Yung-FengChen and 陳永勛. "A Study of the Mechanical Properties of Pozzolanic Cement under Sulfate Enviroments." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/97864749289445671948.

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碩士<br>國立成功大學<br>資源工程學系碩博士班<br>101<br>There are many researches to study the resistant ability of cement as building materials in the complex environments, and the study of sulfate resistance is one of the most important subjects. American Society for Testing and Materials (ASTM) uses the expansion coefficients and uniaxial compressional strengths of the cements as indices to define the resistant ability of cement in the sulfate environment. In this study, the uniaxial compressional strengths and mode I fracture tougthnesses were used to record the mechanical behavior of cement samples in the s
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19

Pin, Li, and 李斌. "Research of Engineering Properties on Cement Mortar withDesulfurization Slag and Pozzolanic Materials." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/66588922110455209079.

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碩士<br>正修科技大學<br>營建工程研究所<br>103<br>Desulfurization steelworks slag is solid waste arising from the blast furnace via desulfurizer desulphurization, the annual output of about 250,000 tons, desulfurization slag is a general industrial waste, the Environmental Protection Administration Announcement of "recyclable waste." In this study, desulfurization slag, furnace slag, fly ash and other admixtures replace most of the cement, to find the best ratio in order to reduce consumption and waste of natural resources regeneration, the purpose of recycling. In this study, we desulfurization slag and
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20

Liao, Shu-Wei, and 廖書緯. "Effect of Magnetic water on Engineering Properties of Cement Mortar with Pozzolanic Materials." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/12737467066565223218.

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碩士<br>國立雲林科技大學<br>營建工程系碩士班<br>95<br>This research is after the water through the magnetic field transforms the magnetic water, the magnetic water is mixed with waste catalyst, fly ash and slag to the cement mortar. The objects of this paper are to discussion chemical reaction, fresh mixing strategy, fresh properties, mechanics properties and micro structure. Because the water reconfigures to the regular water molecule after magnetizing, increases electricity attraction between water molecule, and more easily permeate into the cement particle, and make the hydraulic reaction proceeding more ade
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21

Liu, Chia-Hao, and 劉珈豪. "Effect of Engineering Properties on Cement Mortar with Nano-precipitated Calcium Carbonate and Pozzolanic Materials." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/92633860934415675334.

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碩士<br>雲林科技大學<br>營建工程系碩士班<br>98<br>In construction engineering, the problem of overusing the construction materials are becoming gradually exhausted. The concrete caused the increase of CO2 emission and limited in aggregate to cement, aggregate demand, therefore, to develop green construction and sustainability will be the main issue around. The purpose of new techniques or the substitution is to maintain the sustainability. Nowadays, the nanometer technological was been approved that it is beneficial in material applications. The intrinsically physical properties of materials changed with decr
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22

Huang, Wei-hsiang, and 黃偉翔. "Effect of Pozzolanic Material on The Mechanical Properties and Durability of Concrete with Different Lightweight Aggregate." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/8vg48u.

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碩士<br>國立臺灣科技大學<br>營建工程系<br>95<br>This study discuss about using three kind of coarse aggregate respectively in concrete (normal-weight aggregate, lightweight aggregate type I, and lightweight aggregate type II), with adding different content of fly ash and slag (20%, 40%), and the same water-to-binder ratio (w/b = 0.3) to investigate the mechanical, durability and thermal properties of concrete. The results show: (1) 40% fly ash content gives the highest result of compressive strength at 91 days for normal-aggregate concrete, the value is 84.53 MPa, reach 17.5% for control normal concrete; 40%
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23

Chang, Kai-Hsun, and 張凱勛. "Effect of Pozzolanic Materials with Lime and Cement on the Engineering Properties of a Soft Clay." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/a7xx59.

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碩士<br>國立宜蘭大學<br>土木工程學系碩士班<br>107<br>This study focuses on the engineering properties of improved soft soil. In response to 17 global indicators(Sustainable Development Goals, SDGs), and studies on the direction of green soil improvement research by using of fly ash from coal-fired power plants and slag from steelmaking in steelworks as green improvement materials. Besides, comparing with lime and cement used in traditional soil improvement, assessing the bearing capacity and soil liquefaction potential of soil improvement. This study analyzed the literature by using soft soil in Suao Town, Yil
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24

吳東昇. "= The macro-and micro-properties of cement pastes mixed with high silicon pozzolanic materials cured by wet-mixed steaming injection." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/70066399652995455765.

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25

Ou, Hung-Yi, and 歐宏毅. "Influence of Adding Pozzolans on the Properties of Portland Cement Type II." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/29808971469658026153.

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碩士<br>國立屏東科技大學<br>土木工程系所<br>95<br>Fly ash and furnace slag are the dispose waste both of the fossil power plant and the steel industry. Several researches and experiment show those can be recycled. They can replace the cement as the additive and make the concrete structure more environmental and then reach the economic benefit by recycling them. Because the fly ash and furnace slag have pozzolans’ characteristic, they can not only replace partial cement, but also improve and upgrade the mechanics and physical property. So this research will mainly focus on the different amount of fly ash a
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26

Lee, Weng-Kai, and 李文愷. "A Study of Engineering Properties of Taipei Silty Clay Improved by Quicklime and Pozzolan Material." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/91281444456800219544.

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碩士<br>國立臺灣海洋大學<br>河海工程學系<br>94<br>This study is putting different contents of quicklime and pozzolan material into Taipei silty clay to research what’s the influence of quicklime and pozzolan material to the engineering behavior of Taipei silty clay and the effect on soil improvement. There’re following test results from this research: (1)According to the soil basic test, soil specific gravity is reduced gradually by adding different content materials, the liquid limitation and plastic limitation are control by quicklime content. (2)The unconfined compression strength of composite soil attain
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27

SHIEH, JING-SHUH, and 謝景樹. "On the Engineering Properties of Offshore Sand Improved by Cement, Pozzolan Material and Low-Deflocculant Agent." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/44138844315029668237.

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28

Lu, En-Szu, and 呂恩賜. "A Study of Engineering Properties of Self-Compacting Concrete on the Substitution of Waste Catalyst and Pozzolan for Cement." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/21128839211022311425.

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碩士<br>國立雲林科技大學<br>營建工程系碩士班<br>94<br>The objective of this research is investigating the strength, workability, durability, and the microstructure of concrete using the waste fluid catalytic cracking catalysts to replace cement in self-compacting concrete (SCC), the test methods in self-compacting concrete include: Flowing, U-test, V-test, Compressive strength, Chloride permeability, SEM and XRD. Test results show that concrete will have the best workability when the waste catalyst substitutes for cement 5%, but workability is worse when the waste catalyst substitution quantity increase and m
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