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Dissertations / Theses on the topic 'Blended cements'

Author: Grafiati

Published: 4 April 2023

Last updated: 25 July 2025

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1

Kaya, Ayse Idil. "A Study On Blended Bottom Ash Cements." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612504/index.pdf.

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Cement production which is one of the most energy intensive industries plays a significant role in emitting the greenhouse gases. Blended cement production by supplementary cementitious materials such as fly ash, ground granulated blast furnace slag and natural pozzolan is one of the smart approaches to decrease energy and ecology related concerns about the production. Fly ash has been used as a substance to produce blended cements for years, but bottom ash, its coarser counterpart, has not been utilized due to its lower pozzolanic properties. This thesis study aims to evaluate the laboratory

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2

Stundebeck, Curtis J. "Durability of ternary blended cements in bridge applications." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5082.

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Thesis (M.S.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on November 6, 2007) Includes bibliographical references.

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3

Ulker, Elcin. "Comparison Of Compressive Strength Test Procedures For Blended Cements." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612506/index.pdf.

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The aim of this thesis is to twofold, in order to demonstrate the variabilities that can be faced within the compressive strength of blended cements, one blended cement namely CEM IV / B (P-V) 32.5N is selected and the 28-day compressive strength is obtained by 16 different laboratories following TS EN 196-1 standard. Later, to show the variabilities that could be faced by different standards, three different cement types were selected and their compressive strengths are determined following two procedures first with TS EN 196-1, later with similar procedure described in ASTM. The strength of

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4

Canham, Ian. "The control of alkali silica reaction using blended cements." Thesis, Aston University, 1987. http://publications.aston.ac.uk/9726/.

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It has been previously established that alkali silica reaction (ASR) in concrete may be controlled by blending Portland cement with suitable hydraulic or pozzolanic materials. The controlling mechanism has been attributed to the dilution of the cement's alkali content and reduced mobility of ions in concrete's pore solution. In this project an attempt has been made to identify the factors which influence the relative importance of each mechanism in the overall suppression of the reaction by the use of blended cements. The relationship between the pore solution alkalinity and ASR was explored b

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Ukpata, Joseph Onah. "Durability of slag-blended cements in composite chloride-sulphate environments." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/20968/.

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The problem of concrete durability in marine environments remains a major challenge for the construction industry. Chlorides and sulphates from sea water attack both the steel reinforcing bars and the concrete binder respectively. Chloride attack leads to steel corrosion, while sulphate attack leads to the formation of expansive ettringite. These challenges, combined with pressures to reduce CO2 emissions associated with conventional Portland cement production, have encouraged the increasing use of supplementary cementitious materials (SCMs). Ground granulated blast-furnace slag is one of the

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6

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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7

Erdem, Tahir Kemal. "Investigation On The Pozzolanic Property Of Perlite For Use In Producing Blended Cements." Phd thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/3/12605964/index.pdf.

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Perlite is a glassy volcanic rock that contains approximately 70-75% silica and 12-18% alumina. There are very large perlite reserves in the world (~6700 million tons) and approximately two thirds of these is in Turkey. Due to its high amounts of silica and alumina, at the beginning of such a study, it seemed that it would be worth first to find out whether perlite possesses sufficient pozzolanic property when it is a finely divided form and then to investigate whether it could be used as a pozzolanic addition in producing blended cements. In this study, perlites from two different regions

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8

Tyrer, Mark. "The Hydration chemistry of blended portland blastfurnace slag cements for radiactive waste encapsulation." Thesis, Aston University, 1991. http://publications.aston.ac.uk/14303/.

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Blended Portland-blastfumace slag cements provide a suitable matrix for the encapsulation of low and intermediate level waste due to their inherantly low connective porosity and provide a highly alkaline and strongly reduced chemical environment. The hydration mechanism of these materials is complex and involves several competing chemical reactions. This thesis investigates three main areas: 1) The developing chemical shrinkage of the system shows that the underlying kinetics are dominantly linear and estimates of the activation energy of the slag made by this method and by conduction calorime

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9

Tyrer, Mark. "The hydration chemistry of blended Portland blastfurnace slag cements for radioactive waste encapsulation." Thesis, Aston University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315145.

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10

Oliveira, Morais de Sousa Girão Ana Violeta. "The nanostructure and degradation of C-S-H in Portland and blended cements." Thesis, University of Leeds, 2007. http://etheses.whiterose.ac.uk/712/.

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The microstructure and composition of water and KOH activated hardened pastes of commercial neat white Portland cement (WPC) and blends with 30% fly ash (PFA) have been characterised using a multi-technique approach, With particular emphasis on the nature of the C-S-H phase. The neat and fly ash blended pastes were activated with water or a 5M KOH solution and cured for one year at 25'C, one month at 55'C and one month at 85'C. The mean length of the aluminosilicate anion structure of C-S-H (29 Si MAS NMR) increased with age and it was higher in the fly ash blended systems. Formulae were prese

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11

Delibas, Tughan. "Effects Of Granulated Blast Furnace Slag Trass And Limestone Fineness On The Properties Of Blended Cements." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614072/index.pdf.

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The aim of this research was to determine the effects of the fineness of different mineral additives on loss on ignition, heat of hydration, physical, mechanical and chemical properties of blended cements. For that purpose, portland cement clinker was replaced with granulated blast furnace slag (GBFS), natural pozzolan (NP) and limestone (L) at 6%, 20% and 35% replacement levels. Blended cements containing GBFS and NP were ground to a fineness of 3000, 5000 and 6000 cm2/g. Cements containing L were ground to 3000 cm2/g, 4000 cm2/g and 4500 cm2/g. All of the blended cement types mentioned above

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12

Kurkcu, Mehmet. "Utilization Of Fly Ash From Fluidized Bed Combustion Of A Turkish Lignite In Production Of Blended Cements." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607507/index.pdf.

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Fly ashes generated from fluidized bed combustion of low calorific value, high ash content Turkish lignites are characterized by high content of acidic oxides, such as SiO2, Al2O3 and Fe2O3, varying in the range 50-70%. However, there exists no study for the investigation of the possibility of using these ashes as concrete admixture. Therefore, in this study, characterization of fly ashes from fluidized bed combustion of a Turkish lignite and evaluation of these fly ashes as a substitute for Portland cement in production of pastes and mortars were carried out. The samples were subjected to ch

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13

Sheikh, Vassiem. "Fresh properties, temperature rise and strength development of high strength concrete with binary and tertiary blended cements." Thesis, University College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395651.

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The use of high strength concrete in the construction industry has become more frequent as both the knowledge of the behaviour of the material and the confidence in its production have increased. An appropriate formulation of materials and mix proportions can result in significantly enhanced performance such as high early strength, reduced heat of hydration and increased durability. As a step towards obtaining optimum performance, an investigation has been carried out on the fresh properties (workability), temperature rise during hydration and strength development. This research was aimed at u

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14

Poussardin, Victor. "Utilisation d'argiles et de marnes calcinées dans le développement de ciments composés." Electronic Thesis or Diss., Ecole centrale de Nantes, 2022. http://www.theses.fr/2022ECDN0040.

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L’utilisation de Supplementary Cementitious Materials (SCMs) en substitution du clinker est une technologie aujourd’hui bien connue qui permet de réduire le coût environnemental du ciment. Parmi les SCMs largement utilisés on retrouve les cendres volantes, les laitiers de hauts fourneaux ou encore la poudre de verre. Dans les dernières années, un intérêt grandissant s’est développé pour l’utilisation d’argiles calcinées comme ajouts cimentaires, notamment du fait de leur forte réactivité et leur grande disponibilité. Ce projet de thèse s’intéresse à l’utilisation d’argiles et de marnes calciné

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15

Saeed, Huda. "Glass powder blended cement hydration modelling." Thèse, Université de Sherbrooke, 2008. http://savoirs.usherbrooke.ca/handle/11143/1900.

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The use of waste materials in construction is among the most attractive options to consume these materials without affecting the environment. Glass is among these types of potential waste materials. In this research, waste glass in powder form, i.e. glass powder (GP) is examined for potential use in enhancing the characteristics of concrete on the basis that it is a pozzolanic material. The experimental and the theoretical components of the work are carried out primarily to prove that glass powder belongs to the "family" of the pozzolanic materials. The chemical and physical properties of the

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16

Li, Shuangxin. "Carbonation of 20-year-old blended cement pastes." Thesis, University of Leeds, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.589003.

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This PhD study aims to understand the carbonation mechanism of slag-rich waste forms and consequently benefits assessing the long term efficiency of immobilising waste materials with cementitious disposals. Three phases of experiments had been managed to achieve the aim. The first was an examination of three 20-year-old alkali-activated neat slag pastes. This section supplied the information about the immobilisation mechanism of alkaline metal cations within a cement system. The second was a characterisation of four 20-year-old water- activated slag-bearing pastes with curing at 40°C for the i

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17

Alp, Baris. "Utilization Of Ggbfs Blended Cement Pastes In Well Cementing." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614683/index.pdf.

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In well cementing, the cement slurry is exposed to the conditions far different than those of ordinary Portland cement (PC) used in construction. After placement, hardened cement paste should preserve integrity and provide zonal isolation through the life of the well. American Petroleum Institute (API) Class G cement is the most common cement type used in various well conditions. Class G cement has a high degree of sulfate resistance which makes it more stable than PC when subjected to the compulsive well conditions. Ground granulated blast furnace slag (GGBFS) blended cement has a long histor

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Dyson, Heather Margaret. "Early hydration in binary and ternary blended cement systems." Thesis, University of Leeds, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422065.

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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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Feng, Chen [Verfasser], and Michael [Akademischer Betreuer] Fiederle. "Investigating the pore structure of blended cement with synchrotron microtomography." Freiburg : Universität, 2015. http://d-nb.info/1119805899/34.

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21

Brown, Ashley Vannoy. "Cement Stabilization of Aggregate Base Materials Blended with Reclaimed Asphalt Pavement." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1314.pdf.

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22

Chanda, S. "The mechanical properties of a pulverised fuel ash blended cement paste." Thesis, University of Surrey, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370690.

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23

Dočkal, Jakub. "Vliv technologie mletí na vlastnosti směsných cementů s pucolánovou složkou." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-239954.

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The aim of this thesis was to summarize and assess the possibility of using recycled glass in the manufacture of blended portland cements. Work was focused on examining the possibilities to improve pozzolanic properties of recycled glass with new milling processes. The formation of agglomerates material during the course of grinding and their subsequent effect on the hydration process of binders has been also examining. Part of the thesis was also focused on grindability of materials and determination of using separate or inters grinding.

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24

De, Weerdt Klaartje. "Blended cement with reduced CO2 emission- utilizing the fly ash-limestone synergy." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for konstruksjonsteknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-12038.

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During cement production large amounts of CO2 are emitted, about 1 tonne CO2 per tonne clinker, if no measures are taken. About 40% originates from fuel combustion, grinding and other operations, and 60% from the de-carbonation of limestone to form the clinker phases. One way to reduce these emissions on the short term is by replacing part of the clinker with other materials such as slag, limestone powder, fly ash, silica fume and natural pozzolans. The type of replacement materials used depends on their availability (e.g. amount available, price and transportation) and is therefore dependent

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25

Gergab, Faisel Ahmed. "The use of corrosion inhibitors for the protection of steel in blended cement concrete." Thesis, University of Surrey, 2002. http://epubs.surrey.ac.uk/842852/.

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Repairing reinforced concrete structures experiencing corrosion of the reinforcing bars is a problem all too common in today's climate. When corrosion is the result of chloride ion ingress the use of such patch repairs is likely to create more problems than it solves. In recent years there has been a considerable interest in the development of additives and admixtures which reduce or eliminate the ingress of chloride ions into reinforced concrete. One method of increasing the tolerance of reinforced concrete structures to the presence of chloride ions is the application of corrosion inhibitors

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26

Jia, Shanshan. "Micro/nano-structural evolution in blended cement paste due to progressive deionised water leaching." Thesis, University of Leeds, 2014. http://etheses.whiterose.ac.uk/7429/.

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This study investigates the structural evolution of the blended cement pastes at micro-, nano-, and atomic-scale due to environmental factors, such as, water leaching, ageing and curing temperature, with the aid of the analytical techniques, i.e. thermal analysis, XRD, SEM, TEM and SS MAS NMR. The water leaching experiments are performed on the one year old WPC cement paste blended with 30% PFA, as well as 13 years old WPC cement paste blended with 30% and 50% PFA. It is observed that the water leaching induces the phase dissolution and precipitation, e.g. CH, anhydrous cement, AFm and TAH dis

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Matyk, Tomáš. "Studium vlastností betonů s „green cementy“." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226718.

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The thesis focuses on collecting available information about possible ways of using and usage restriction of portland blended cements and portland cements with limestone for production of concrete. The experimental part of the thesis describes the behavior of portland blended cements and portland cements with limestone in aggressive environments. Furthermore, the thesis concerns the dependence of rheological properties of cement pastes of portland cements and portland cements with limestone on type of plasticizing additives.

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Stachová, Jana. "Snižování emisí CO2 při výpalu hydraulických pojiv." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-390263.

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The thesis is focused on research and development of hydraulic binders based on FBC-ashes. It examines the possibilities of using this ash in the clinker so that the properties of the final cement are comparable to Portland cement. As an integral part of this thesis the research of emission reduction possibilities in the cement industry - a very current topic these days - is presented.

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Jensen, Hans-Ulrich. "The effect of sea-water on the hydration of Portland cement and fly ash cement blends." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47124.

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Sirtoli, Davide (ORCID:0000-0003-2717-9509). "Mechanical performance of sulfo-based rapid hardening concrete systems focusing on blends with Portland cement." Doctoral thesis, Università degli studi di Bergamo, 2018. http://hdl.handle.net/10446/104982.

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Calcium sulfoaluminate cement (CSA) represents an eco-friendly alternative to Portland cement (PC) thanks to its low CO2 emission during production. Its main phase is the ye’elimite (C4A3‾S) which reacts with water forming ettringite. This reaction is characterized by the rapidity and the initial high heat production; indeed, CSA is known as a rapid hardening cement. Moreover, the huge ettringite formation during hydration is the main responsible of its performance, like the high early age strength and the low shrinkage evolution. Thanks to its properties, CSA cement was widely used in China d

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Martykán, Jiří. "Sledování vývoje AFt fází ve směsných portlandských cementech s fluidním popílkem." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240190.

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Dobrovolný, Petr. "Možnosti využití skelného recyklátu pro přípravu směsných cementů." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227741.

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This work focuses on the possibility of using recycled glass in the manufacture of blended portland cements. It examines the possibilities to improve pozzolanic properties of recycled glass with new milling processes, the formation of agglomerates material during the course of grinding and their subsequent effect on the hydration process of binders. It is also the optimization of the grinding process with respect to the wear of grinding bodies, grinding energy consumption and maximize the performance of the mill.

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Snelson, David Geoffrey. "Hydration, pore development and chemical resistance of Metakaolin-fly ash-Portland cement (MK-PFA-PC) blends." Thesis, University of South Wales, 2005. https://pure.southwales.ac.uk/en/studentthesis/hydration-pore-development-and-chemical-resistance-of-metakaolin--fly-ash--portland-cement-mkpfapc-blends(4d662a75-989d-4bb5-9c67-fe6c4c752de4).html.

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The aim of the project is to utilise fly ash (PFA), a waste material/industrial byproduct, with metakaolin (MK), as a partial replacement for Portland cement (PC) in mortar and paste. The influence of various compositions of MK-PFA-PC blends on the resistance to the action of sulphate and synthetic seawater solutions, setting time and heat of hydration will be examined. MK is calcinated clay and is a relatively new pozzolanic material. Although it is a very effective pozzolan it is also very expensive. Using FA, which is a much less expensive material, as a PC replacement material, is problema

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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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Trauchessec, Romain. "Mélanges de ciments sulfoalumineux et Portland." Thesis, Université de Lorraine, 2013. http://www.theses.fr/2013LORR0234/document.

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Les mélanges de ciment sulfoalumineux et de ciment Portland sont des liants hydrauliques innovants permettant de moduler les propriétés des bétons, telles que la vitesse de montée en résistance ou la stabilité dimensionnelle. Les performances du liant peuvent ainsi être ajustées pour de nombreuses applications. Au-delà de cet avantage, les émissions de dioxyde de carbone liées à la production du ciment sulfoalumineux sont significativement réduites comparées à celles du ciment Portland traditionnellement utilisé. La diversité des propriétés de ces liants résulte de la variété des mélanges pouv

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Deschner, Florian [Verfasser], Jürgen [Akademischer Betreuer] Neubauer, Christian [Akademischer Betreuer] Kaps, and Frank [Akademischer Betreuer] Winnefeld. "Reaction of siliceous fly ash in blended Portland cement pastes and its effect on the chemistry of hydrate phases and pore solution / Florian Deschner. Gutachter: Jürgen Neubauer ; Christian Kaps ; Frank Winnefeld." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2014. http://d-nb.info/1054731675/34.

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Stephant, Sylvain. "Etude de l'influence de l'hydratation des laitiers sur les propriétés de transfert gazeux dans les matériaux cimentaires." Thesis, Dijon, 2015. http://www.theses.fr/2015DIJOS090/document.

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L’utilisation de ciment à haute teneur en laitier est envisagée dans le cadre du conditionnement des déchets nucléaires. Dans ce contexte, il est nécessaire de connaître les propriétés structurales et de transport des gaz formés par la radiolyse de l’eau contenue dans cette matrice. Selon la littérature, ces propriétés sont impactées par l’ajout de laitier de haut-fourneau. L’objectif de cette thèse est de relier les processus d’hydratation des ciments au laitier aux propriétés de transport des gaz. La première partie de cette étude est consacrée à l’étude de l’hydratation des ciments au laiti

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Іващишин, Ганна Степанівна. "Низькоемісійні змішані цементи та модифіковані бетони і будівельні розчини на їх основі". Diss., Національний університет "Львівська політехніка", 2020. https://ena.lpnu.ua/handle/ntb/53805.

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Zaťko, Petr. "Vliv rozptýlené výztuže na průběh zrání polymercementových hmot." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265336.

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The diploma thesis is focused on polymercement materials with dispersed reinforcement. The aim of this work is development of suitable polymercement mixture and monitoring of the impact of dispersed reinforcement on the course of maturation of these materials and physico-mechanical properties. The effect of high temperatures on the properties of the mortar is also examined. Emphasis is placed on the use of alternative resources and byproducts. Mixed binder of cement and slag and admixture of microsilica was used. Recycled cellulose was used as dispersed reinforcement and was compared with comm

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Perlot, Céline. "Influence de la décalcification de matériaux cimentaires sur les propriétés de transfert : application au stockage profond de déchets radioactifs." Toulouse 3, 2005. http://www.theses.fr/2005TOU30211.

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Les matériaux cimentaires ont été retenus afin de composer la barrière ouvragée du site français de stockage des déchets nucléaires en formation géologique profonde. Ce choix se justifie par les capacités physico-chimiques propres aux bétons : les hydrates de la matrice cimentaire (CSH) et le pH de sa solution interstitielle contribuent à la rétention des radionucléides ; d'autre part la compacité de ces matériaux limite le transport d'éléments. Il convient de s'assurer de la pérennité de cette structure pendant une durée au moins égale à celle de la vie des déchets (jusqu'à 100 000 ans). Sa d

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"INVESTIGATION ON THE POZZOLANIC PROPERTY OF PERLITE FOR USE IN PRODUCING BLENDED CEMENTS." Phd thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/3/12605964/index.pdf.

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42

Sharma, Rakesh Chandra. "Studies on the reactivity of some Indian fly ashes and cements blended with them as influenced by their chemical and physical characteristics." Thesis, 1991. http://localhost:8080/xmlui/handle/12345678/3091.

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Chang, Chengcheng, and 張正成. "Engineering Properties of LED Sludge-blended Cement Mortar." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/34307870586889133079.

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碩士<br>國立聯合大學<br>土木與防災工程學系碩士班<br>100<br>The Taiwan government promote the energy saving and carbon reduction policy in recent years, they were encouraged to product Light Emitting Diode (LED) for energy saving. Therefore, the LED sludge a by-product in the LED manufacturing process sludge was been produced largely and may compromise the environment. Since the LED sludge is rich in nano-particles SiO2, Al2O3 and SiC, these hazardous ingredients are harmful to the ecological environment and endanger human health if improper disposal. The purpose of this study is to explore the possibility of

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Tzeng, Bor-Yu, and 曾博榆. "Hydration Characteristics of MSWI Ashes Modified Slag Blended Cement." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/84616308271529480885.

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碩士<br>國立中央大學<br>環境工程研究所<br>90<br>This study investigated the pozzolonic reactions and engineering properties of municipal solid waste incinerator (MSWI) ash modified slag blended cements (SBC) with various replacement ratios. The modified slags were characterized by melting the MSWI ash mixtures at 1,400℃ for 30 min. The mixtures were composed of different types of MSWI ash, including fly ash, scrubber ash and bottom ash, with various formulas. Bottom ash and scrubber ash, in general, have higher melting points, and are more energy intensive to melt than fly ash. Therefore, fly ash was used to

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Tu, Geng-Ye, and 塗耕業. "Hydration Characteristic of Cement Paste Blended with Pozzolanic Materials." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/34248824734755988221.

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碩士<br>國立中興大學<br>土木工程學系所<br>95<br>The purpose of this research is to investigate the effects of adding pozzolanic materials on the hydration characteristics of the cement paste. First, for the conditions of varied experimental parameters including water-to-binder ratios(w/b), pozzolanic material replacements and testing ages, the compressive strength tests, the ignited loss analysis, and the MIP porosity measurements were conducted on three series of pastes— ordinary Portland cement (OPC) paste, fly ash-cement (FC) paste and slag-cement (SC) Paste. Second, the effects of experimental variables

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Yu-Hsien, Lin, and 林育賢. "Engineering Properties of White Carbon Sludge-blended Cement Mortar." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/c8qp57.

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碩士<br>國立聯合大學<br>土木與防災工程學系碩士班<br>101<br>The purpose of this study is to explore the possibility of using White Carbon Sludge (WCS) sludge, a by-product from the manufacturing rubber of chemical industry, to replace partial cement in cement-paste, cement-mortar. The emphases are on its material strength and engineering properties. WCS sludge is rich in hazardous nano-particles of SiO2 and other debris of unknown organics. These hazardous ingredients may harmful to the ecological environment, and the WCS sludge may be a pozzlanic material suitable recycling in cement concrete, which worth to inve

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Singh, Ram Ashish. "Experimental study on Ternary and Quaternary Blended Cement Mortar." Thesis, 2018. http://ethesis.nitrkl.ac.in/9538/1/2018_MT_216CE2055_RASingh_Experimental.pdf.

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The aim of the present work is to investigate the properties of mortars made from binary, ternary and quaternary blends of fl y ash, silica fume, metakaolin and Portland Slag Cement . The 50% of PSC, in the mixture is partially replaced with FA, SF, MK and combination of them . At the fresh state standard consistency, setting times, soundness of mixes is evaluated while at hardened state compressive strength and porosity at the age of 7 - days and 28 - days are evaluated . Tests were carried out on binary, ternary and quaternary cement mortars mixes prepared with different fraction of them . E

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"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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Chen, Chung-Yuan, and 陳忠元. "Effect of Superplasticizers on the Early Behaivor of Blended Cement." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/08197174833563137839.

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碩士<br>國立中央大學<br>土木工程學系<br>86<br>Superplasticizer(SP)and pozolans, fly ash and slag, are commonlyused in making high performance concrete (HPC) to achieve high flowability and high strength. The flowability and early behavior of freshHPC are highly dependent on the interaction of SP with cement and pozzolans. This research is to investigate the effects of SPs on the earlybehavior of cement paste containing pozzolans. Three SPs including SNF,SMF and PCA were used to study the compatibility wi

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Koong, Jan Min, and 孔建民. "Hydration Mechanism of Dry Blended Fly Ash Cement With Steam." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/25725656626607205694.

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碩士<br>國立交通大學<br>土木工程研究所<br>82<br>In 1991 the National Science Council of Republic of China funded a research program, entitled"Hydration Mechanisms and Physical Properties of Cementitious Materials Hardened through The Dry-mix/Steam-Injection Process". The test results indicate that the transfer of heat energy from steam to cement particles at the moment of contact triggers a repid hydration reaction when the activation energy reaches the energy barrier. Concrete thus made developed high st

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