Heat of hydration of high reactive pozzolans in blended cements: Isothermal conduction calorimetry

2005 ◽  
Vol 435 (2) ◽  
pp. 162-167 ◽  
Author(s):  
N.Y. Mostafa ◽  
P.W. Brown
Keyword(s):  
Heat Of Hydration ◽  
Blended Cements ◽  
Conduction Calorimetry

SETTING TIME AND HEAT OF HYDRATION OF WASTEPAPER SLUDGE ASH-GROUND GRANULATED BLASTFURNACE SLAG BLENDED CEMENTS

2005 ◽  
pp. 825-834 ◽  
Author(s):  
Arnon Chaipanich ◽  
J Bai ◽  
M O'Farrell ◽  
J M Kinuthia ◽  
B B Sabir ◽  
...  
Keyword(s):  
Setting Time ◽  
Heat Of Hydration ◽  
Blended Cements ◽  
Blastfurnace Slag ◽  
Sludge Ash

scholarly journals RELATIONSHIP BETWEEN HEAT OF HYDRATION AND COMPRESSIVE STRENGTH IN BLENDED CEMENTS

2015 ◽  
Vol 69 (1) ◽  
pp. 191-198
Author(s):  
Yuya YODA ◽  
Yutaka AIKAWA ◽  
Daiki ATARASHI ◽  
Etsuo SAKAI
Keyword(s):  
Compressive Strength ◽  
Heat Of Hydration ◽  
Blended Cements

scholarly journals Characteristics of Blended Cements Produced from Selected Hardwood Ashes

2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Akeem A Raheem ◽  
Blessing O Orogbade
Keyword(s):  
Chemical Composition ◽  
Wood Ash ◽  
Heat Of Hydration ◽  
Cement Clinker ◽  
Potassium Oxide ◽  
Cassia Siamea ◽  
Suitable Material ◽  
Blended Cements ◽  
Setting Times ◽  
Portland Cement Clinker

In an attempt to find an alternative binding material for construction industry, this study considered the use of wood ash from three different hardwoods namely: Tectonagrandis, Cassia siamea and Vitellariaparadoxa as a pozzolan in cement production. The study investigates the chemical composition (silica (SiO2), aluminum oxide (Al2O3), ferric oxide (Fe2O3), calcium oxide (CaO), magnesium oxide (MgO), sulphur trioxide (SO3), sodium oxide (Na2O) and potassium Oxide (K2O)) of the ashes and the clinker. The production of blended cements were carried out in the factory by replacing 5- 50% by weight of Ordinary Portland Cement Clinker with the ashes during the manufacturing process. The cement without wood ash serves as the control. The physical characteristic (fineness, initial and final setting times, heat of hydration and residue on 45µm sieve), and the chemical composition of the blended cements were also investigated. The results showed that all the wood ashes (Tectonagrandis ash (TGA), Cassia siamea ash (CSA) and Vitellariaparadoxa ash (VPA)) were suitable material for use as pozzolan since they satisfied the requirement for such a material by having a combined SiO2, Fe2O3 and Al2O3 of more than 70%. The TGA, CSA and VPA blended cements satisfied standard requirements for up to 20% replacement level. It was concluded that all the wood ashes were suitable for use in the production of blended cements.

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