a conduction calorimetric study of gasifier slag portland
The role of the alumina content of slag plus the presence
1 The Role of the Alumina Content of Slag plus the Presence of Additional 2 Sulphate on the Hydration and Microstructure of Portland Cement-Slag 3 Blends 4 Mark Whittakera Maciej Zajacb Mohsen Ben Haha b Frank Bullerjahn Leon Black 5 a 6 aUniversity of Leeds Woodhouse Lane Leeds LS2 9JT 7 bHeidelberg Technology Center Rohrbacher Str. 95 69181 Leimen Germany
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Calorimetric Study of Cement Blends Containing Fly Ash Silica Fume and Slag at Elevated Temperatures. Use of High Volumes of Class C and Class F Fly Ash in Concrete. Strength Measurement of Concrete Using Different Cylinder Sizes A Statistical Analysis. Accelerated Sulfate
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silicate activated slag-metakaolin pastes showed similar calorimetric signals to those of sodium silicate activated slag paste as long as slag was the major component in the blends. According to the aforementioned calorimetric studies among others in the literature like 25–28
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Use of Isothermal Conduction Calorimetric Method for Measuring the Heat of Hydration of Cement. Utilization of Discarded Fly Ash as a Raw Material in the Production of Portland Cement. Effects of Supplementary Cementitious Materials on Apparent Activation Energy
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The influence of calcium sulfate with different reactivities (anhydrite α-hemihydrate and gypsum) on the Portland cement–calcium aluminate cement (PC/CAC) mixtures was presented in the paper. The hydration process and main hydration products (ettringite) of the binders with different content of calcium sulfate was investigated by isothermal conduction calorimetry setting times
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Utilization of Discarded Fly Ash as a Raw Material in the Production of Portland Cement. Use of Isothermal Conduction Calorimetric Method for Measuring the Heat of Hydration of Cement. Effect of Continuous Agitation on Concrete Rheology. Comparison of the Life Cycle Assessments of an Insulating Concrete Form House and a Wood Frame House
Get PriceThe effect of metakaolin upon the formation of ettringite
Dec 14 2017 · The present study reports the results of investigation on the role of metakaolin in the formation of ettringite in a model relevant to Portland cement. The model consists of ternary system (Trio) metakaolin–lime–gypsum. Five samples of defined ternary system were cured at different temperatures 20 30 40 50 and 60 °C. Conduction calorimeter TAM AIR was mainly used to capture
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A discussion of the paper "Conduction calorimetric studies of the effect of sulphate on the hydration reactions of portland cement". Cement and Concrete Research 1974 4 (5) .
Get PriceCONDUCTION CALORIMETRY Thermometric TAM Air
Study of late expansion potential of some rapid-hardening mortars. a mortar prism in the ampoule filled with water b results of long-time calorimetric and expansion measurement. Figure 5 Gypsum addition to an OPC-slag cement. Modified from Kocaba (2009). a b
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1 Calorimetric study of white portland cement hydration. Effect of nanosilica and temperature 2 3 I.F. Sáez del Bosque1 S. Martínez-Ramírez 1 2 M.T. Blanco-Varela1 4 1 stituto de Ciencias de la Construcción "Eduardo Torroja" (IETCC-CSIC) 5 Consejo Superior de Investigaciones Científicas 28026 Spain 6 2. Instituto de Estructura de la Materia (IEM-CSIC) Consejo Superior de
Get PriceThe chemistry of Portland cement-gasifier slag
Gassifier slag (GS) is a potential new cement replacement material which is intermediate in composition between granulated blastfurnace slag (GBFS) and pulverized fuel ash (P FA). Three GSs have been blended with an ordinary Portland cement (OPC) and a sulphate-resisting Portland cement (SRPC) and comparisons made with a G BFS and a P FA blended with the two cements.
Get Price(PDF) Hydration of alkali-activated slag comparison with
IntroductionGround granulated blast-furnace slag can be activated with alkalis to obtain a clinker-free binder. The production of alkali-activated slag (AAS) utilises industrial by-products requires less energy than ordinary Portland cement (OPC) and is associated with low CO 2 emission.The reactivity and strength development of slag depend on various factors such as composition glass
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Many calorimetric studies have been carried out to investigate the reaction process of alkali-activated slag paste. However the origin of the induction period and action mechanism of soluble Si in the dissolution of slag are still not clear. Moreover the mechanisms behind different reaction periods are not well described. In this study the reaction kinetics of alkali-activated slag paste
Get Price(PDF) Reactivity and performance of blastfurnace slags of
Conduction calorimetric study of gasifier slag-Portland cement blends. Cem Concr Res 199121(2–3) 359–67. low. It should be emphasised however that these findings and the 16 Bland CH Sharp JH. The chemistry of Portland cement-gasifier slag interrelationships between the various parameters studied should interactions. Adv Cem Res 19903
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Calorimetric Study of Cement Blends Containing Fly Ash Silica Fume and Slag at Elevated Temperatures Cement Concrete and Aggregates (16)(2)(1994) 93-99 6 Broda M. Wriquin E. Duthoit B. Conception of an Isothermal Calorimeter for ConcreteDetermination of the Apparent Activation Energy Materials and Structures (35)(2002)
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ing of calorimetric peak in VM and occurrence of new peaks in 19 Kumar S Kumar R Bandopadhyay A Alex TC RaviKumar B Das SK et al. AM and VM is associated with faster rate of reaction and accel- Mechanical activation of granulated blast furnace slag and its effect on the properties and structure of portland slag cement.
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calorimetric signal. The effects of reaction temperature and calcium addition have been studied by isothermal conduction calorimetry (ICC) in the research program conducted by Granizo et al. and by Alonso and Palomo 10-12 . Chithiraputhiran and Neithalath 13 studied the reaction kinetics and
Get PriceCONDUCTION CALORIMETRY Thermometric TAM Air
Study of late expansion potential of some rapid-hardening mortars. a mortar prism in the ampoule filled with water b results of long-time calorimetric and expansion measurement. Figure 5 Gypsum addition to an OPC-slag cement. Modified from Kocaba (2009). a b
Get Price(PDF) Reactivity and performance of blastfurnace slags of
Conduction calorimetric study of gasifier slag-Portland cement blends. Cem Concr Res 199121(2–3) 359–67. low. It should be emphasised however that these findings and the 16 Bland CH Sharp JH. The chemistry of Portland cement-gasifier slag interrelationships between the various parameters studied should interactions. Adv Cem Res 19903
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study aimed to determine the behaviour of this waste as a pozzolan in OPC systems the mechanical strength in OPC alkali-activated slag (AAS) and fly ash (AAFA) mortars and the effect of partial replacement of the slag and ash themselves with ground fractions of the waste. The pozzolanic behaviour of clay-based waste was confirmed.
Get PriceEncapsulation of Sn(II) and Sn(IV) Chlorides in Composite
A Conduction Calorimetric Study of Gasifier Slag-Portland Cement Blends. (PFA). A conduction calorimetric study has been made of three GS blended with an ordinary Portland cement (OPC) and a
Get PriceEffect of Temperature and pH on Early Hydration Rate and
In order to investigate the effect of temperature and pH on the early hydration rate of alkali-activated slag (AAS) NaOH was used as alkali activator and the nonevaporable water (NEW) content of the slag paste at different temperatures (5 20 and 35°C) and pH (12.10 12.55 13.02 and 13.58) was measured. On the basis of the Arrhenius formula the hydration rate of slag was characterized by
Get PriceCalorimetric study of white portland cement hydration
1 Calorimetric study of white portland cement hydration. Effect of nanosilica and temperature 2 3 I.F. Sáez del Bosque1 S. Martínez-Ramírez 1 2 M.T. Blanco-Varela1 4 1 stituto de Ciencias de la Construcción "Eduardo Torroja" (IETCC-CSIC) 5 Consejo Superior de Investigaciones Científicas 28026 Spain 6 2. Instituto de Estructura de la Materia (IEM-CSIC) Consejo Superior de
Get Price(PDF) Determination of Kinetic Equations of Alkaline
A Conduction Calorimetric Study of Gasifier Slag-Portland Cement Blends. March 1991 · Cement and Concrete Research. C. H. Bland J. H. Sharp Gasifier slag (GS) is intermediate in chemical
Get PriceThe chemistry of Portland cement-gasifier slag
Gassifier slag (GS) is a potential new cement replacement material which is intermediate in composition between granulated blastfurnace slag (GBFS) and pulverized fuel ash (P FA). Three GSs have been blended with an ordinary Portland cement (OPC) and a sulphate-resisting Portland cement (SRPC) and comparisons made with a G BFS and a P FA blended with the two cements.
Get PriceEffect of Temperature and pH on Early Hydration Rate and
In order to investigate the effect of temperature and pH on the early hydration rate of alkali-activated slag (AAS) NaOH was used as alkali activator and the nonevaporable water (NEW) content of the slag paste at different temperatures (5 20 and 35°C) and pH (12.10 12.55 13.02 and 13.58) was measured. On the basis of the Arrhenius formula the hydration rate of slag was characterized by
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