Results 171 to 180 of about 8,920 (223)

Limestone-filled pozzolanic cement

Cement and Concrete Research, 2000
Fillers are specially selected, natural or artificial inorganic materials, which improve the physico-chemical and mechanical properties of the cement such as workability or water retention. They can be inert or have slightly hydraulic, latent hydraulic or pozzolanic properties.
M. Heikal, H. El-Didamony, M.S. Morsy
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Effects of pozzolanic and non-pozzolanic nanomaterials on cement-based materials

Construction and Building Materials, 2019
Abstract Although it has been verified that nanomaterials can improve the properties of cement-based materials, the research on the characteristics and mechanism of different types of nanomaterials is still inadequate. Two typical types of nanomaterials, nano-SiO2 (pozzolanic material) and nano-TiO2 (non-pozzolanic material), are utilized in this ...
Huigang Xiao, Fengling Zhang, Rui Liu, Rongling Zhang, Zhiguo Liu, Hongxia Liu   +5 more
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Mechanical and Microstructural Properties of Alkali Pozzolan Cement (APC)

International Journal of Civil Engineering, 2020
Alkali Pozzolan cement (APC) comprises a high volume of fly ash, lime, ordinary Portland cement (OPC), and a dry Na2SO4 activator. APC can be stored in dry form and only requires water to create a cementitious binder. Mechanical and microstructural properties of APC were investigated to determine the compressive strength and hydration products of ...
Kulasuriya, Chandana, Dias, W. P. S., Vimonsatit, Vanissorn, De Silva, P.   +3 more
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Cementation processes of Roman pozzolanic binders from Caesarea Maritima (Israel)

Construction and Building Materials, 2022
A multi-analytical characterization study was performed on the pozzolanic binding composites used for the construction of Sebastos harbor in Caesarea Maritima, comparing underwater concretes to on-land mortars. Historically dated to the 1st Century BCE, the structure was erected by King Herod the Great as the largest ancient artificial harbor in the ...
Michele Secco, Yotam Asscher, Giulia Ricci, Sergio Tamburini, Nereo Preto, Jacob Sharvit, Gilberto Artioli   +6 more
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Wettability of cement and pozzolan particle surfaces

Advances in Cement Research, 2015
This study investigated the concept of wettability, which defines the interaction between a liquid and a solid, on the basis of sustainability for reference cements, pozzolans and blended cements. Chemical, physical, mineralogical and electromagnetic analyses of samples were conducted.
Demirer A., Yilmaz B.
openaire   +3 more sources

Experimental Research on Natural Pozzolan as Cement Replacement

ABUAD International Journal of Natural and Applied Sciences, 2023
This paper presents the properties of mortar and concrete with NBRRI pozzolan as partial replacement of cement. In this research, NBRRI pozzolan from NBRRI and local cement (Dangote) are used. Firstly, chemical composition of NBRRI pozzolan and Dangote cement are analyzed.
Jighjigh Eric Annune, Abimiku Yohanna, Charles Arome Oguche, C. B. Wali   +3 more
openaire   +1 more source

Efficiency of pozzolans in Portland cement composits

2007
Pozzolans materials have long been used as active additions in Portland cement concrete. Among these supplementary cementing materials (SCMs), the industrial wastes produced during various treatments(silica fume, blast-furnace slag and fly ashes) are mainly used to improve the mechanical properties and durability of concrete.
Zelić, Jelica, Zelić, Damir, Vodanović, Ante, Krpan-Lisica, Draga   +2 more
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SIMULATION OF POZZOLAN BLENDED CEMENT HYDRATION

2013
Civil Engineering and ...
Ukrainczyk, N. (author), Koenders, E.A.B. (author), Van Breugel, K. (author)   +2 more
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POZZOLAN AND CEMENTS WITH POZZOLAN

2015
Yapı mühendisliğinin temel malzemelerinden olan çimento, yapının dayanımı ve maliyeti bakımından önemli bir yere sahiptir. İnşaat sektöründeki gelişmeye paralel olarak çimento tüketimi de artmaktadır. Çimento üreticileri açısından, yeni yeni kaynaklar bulunarak üretimin minimum maliyetle yapılması ve talebin karşılanması, yapımcı ve kontrolluk ...
KAPLAN, Hasan, BİNİCİ, Hanifi
openaire   +1 more source

Alkali activated natural pozzolans for geopolymer cement

2021
This thesis deals with the use of six natural pozzolans from Germany and Italy for geopolymer production. As the first part, a detailed study was conducted on the effect of silica modulus of sodium silicate solution and mineralogical composition of natural pozzolans on the extend of geopolymer reaction, reaction kinetics, mechanical properties, and ...
openaire   +1 more source