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Maximizing SCM content of blended cements
2015 IEEE-IAS/PCA Cement Industry Conference (IAS/PCA CIC), 2015Today Portland cement substitutes known as supplementary cementitious materials or SCMs are used to improve the peiformance while reducing the environmental footprint of concrete. There are several factors that impact the amount of SCMs that can be added to concrete while maintaining its basic integrity. This paper describes a newly developed framework
John Guynn, John Kline
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Sulfate Attack on Blended Portland Cements
SP-192: 2000 Canmet/ACI Conference on Durability of Concrete, 2000Paste and mortar specimens were manufactured by using ordinary portland cement (OPC), C3A-free portland cement, slag cement and pozzolan cement. A carbonaceous or siliceous filler (10% by cement weight) was blended with each of the above portland cements. Limestone or quartz sands were used for mortar mixtures.
Borsoi, Antonio +4 more
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Hydration of slag-blended cements
Cement and Concrete Composites, 2012Abstract In this paper, the hydration of slag in blended cements is investigated through the measurement of hydration reaction indicators such as portlandite content, non-evaporable and free water, and hydration heat. Three substitution rates of cement by slag were used (30%, 50% and 70%).
B. Kolani +5 more
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1986
Description Nine papers present recent research on the properties of blended cements and how they compare with portland cements. They examine Portland fly ash cements, and blended cements with slag and pozzolans.
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Description Nine papers present recent research on the properties of blended cements and how they compare with portland cements. They examine Portland fly ash cements, and blended cements with slag and pozzolans.
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Slag Blended Cement and Concrete
HKIE Transactions, 1996Although blastfumace slag has been in use in many countries for many years, its use in Hong Kong is only beginning, In addition to environmental and economical benefits, slag-blended concretes have...
Shao-Dong Wang, Anthony S. Read
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Hydration of portland blended cements
Cement and Concrete Research, 1995Abstract Hydration of portland cement blended with granulated blast furnace slag and rice husk ash in presence of bag house dust has been studied, by measuring non-evaporable water contents, heat of hydration and compressive strengths. Analysis of liquid phase for Ca++ ion estimations has been made. Hydration characteristics have been discussed.
N.B. Singh +2 more
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Blended cements—Applications and implications
Cement and Concrete Composites, 1993Abstract The paper aims to emphasise that the practical aspects of producing and using concretes made from blended cements is equally important as research and development work on these materials when considering the long-term durability aspects of structures in which they form part. The manufacture of the base materials is given, as are a number of
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2012
Blending of Portland cement with silica-rich materials leads to changes in composition of the hydrated cement and of its pore solution. Blends rich in SiO2 result in the absence of portlandite and the formation of more C-S-H with a lower Ca/Si ratio. At higher SiO2 additions also monocarbonate is unstable and stratlingite might form. Blending with very
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Blending of Portland cement with silica-rich materials leads to changes in composition of the hydrated cement and of its pore solution. Blends rich in SiO2 result in the absence of portlandite and the formation of more C-S-H with a lower Ca/Si ratio. At higher SiO2 additions also monocarbonate is unstable and stratlingite might form. Blending with very
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Properties of Metakaolin blended cements
Advanced Cement Based Materials, 1994Abstract Metakaolin is a supplementary cementitious material with pozzolanic properties. Its activation by triacalcium silicate (C3S), triacalcium aluminate (C3A), and ordinary Portland cement is reported. The early hydration period of pastes containing metakaolin was investigated using isothermal calorimetry and conductivity.
Jean Ambroise +2 more
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SIMULATION OF POZZOLAN BLENDED CEMENT HYDRATION
2013Civil Engineering and ...
Ukrainczyk, N. (author) +2 more
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