Effect of combining different cement clinkers and slag with controlled finenesses on mortar strength and heat of hydration

Download
index.pdf
2013
Çelikkol Koçak, Tümay
Show full item record
199
views
88
downloads
Portland cement production is an energy consuming activity. Increasing efficiency in concrete production is one of the ways of reducing energy consumption. To improve the efficiency of the properties of both materials and concrete system, reduction of undesired effects (loss of strength, decrease in lifetime, etc.) is important. The main purpose of this study is to combine different Portland cement clinkers and blast furnace slag with different fineness to obtain a cement with a controlled grading, in order to investigate their effects on properties of concrete. For this purpose three different Portland cements, and a blast furnace slag, each ground to three finenesses, are used. Strength and hydration heat development of these combinations are measured. Isothermal calorimetry is used to measure heat of hydration. Results obtained are used to determine relationships between controlled gradation, strength, fineness and composition of the cements. According to this study, the individual strength of clinkers is the main factor affecting strength development mixtures containing fine blast furnace slag and mixtures containing clinkers only. Meanwhile, activation of blast furnace slag is the main factor affecting strength development for mixtures containing medium blast furnace slag.
Portland cement., Portland cement, Slag cement., Heat of hydration.
http://etd.lib.metu.edu.tr/upload/12616634/index.pdf
https://hdl.handle.net/11511/23163
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

Early heat evolution in natural pozzolan - incorporated cement hydration
Över, Derya; Tokyay, Mustafa; Erdoğan, Sinan Turhan; Department of Civil Engineering (2012)
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 (<45 µm) of natural pozzolan-incorporated cement on hydration heat. ...
The Effect of nanosilica on the properties of pumice incorporated blended cement
Dündar, Burak; Yaman, İsmail Özgür; Şahmaran, Mustafa; Department of Civil Engineering (2016)
Because of the high energy requirement and high CO2 amount as a waste of burned CaCO3 present in raw material, Portland Cement production is also responsible from the CO2 emission among other responsible industries. In order to reduce such an energy consumption, use of portland cement clinker is aimed to be reduced in construction industry. For this aim, use of materials called pozzolan has become widespread. Through the use of pozzolans, the amount of Portland Cement Clinker in structural concrete can be r...
Comparison of the strength developments of interground and separately ground marble-incorporated cement mortars
Kava, İsmail Tolga; Erdoğan, Sinan Turhan; Hoşten, Çetin; Department of Cement Engineering (2013)
Production of Portland cement clinker contributes significantly to global warming and has a large environmental footprint. To reduce the amount of kiln-produced clinker in cement, the use of substitute natural or industrial waste materials has been gaining popularity. The use of CaCO 3- containing natural materials such as limestone and waste marble pieces has been increasing around the world, particularly after modifications made to cement production standards. Two types of marble-containing blended Portla...
Utilization of GGBFS blended cement pastes in well cementing
Alp, Barış; Yaman, İsmail Özgür; Akın, Serhat; Department of Cement Engineering (2012)
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 c...
Early heat evolution of different – sized portland cements incorporating ground granulated blast furnace slag
Çetin, Can; Erdoğan, Sinan Turhan; Tokyay, Mustafa; Department of Civil Engineering (2013)
Heat of hydration and rate of heat evolution are two important characteristics of portland cement hydration, significant for various concrete applications such as mass, hot-weather, and cold-weather concreting. The heat of hydration and rate of heat liberation of cement pastes, and concrete made with it, depend heavily on the chemical composition, fineness, and mineral admixture content of the cement used. This thesis investigates the influence of compound composition and GGBFS incorporation in different-si...
Citation Formats
T. Çelikkol Koçak, “Effect of combining different cement clinkers and slag with controlled finenesses on mortar strength and heat of hydration,” M.S. - Master of Science, Middle East Technical University, 2013.
METU IIS - Integrated Information Service open@metu.edu.tr