Results 31 to 40 of about 5,017 (196)

Technological foundations for solving problem of metallurgy and TPP waste utilization for development of "Green" technology for composite cements production [PDF]

open access: yesE3S Web of Conferences, 2023
The chemical-mineralogical compositions and physic-chemical properties of slag waste from the Angren TPP and Uzmetkombinat JSC were determined. A Conclusion was issued on their suitability for use as additives in cement and the possibility of using them ...
Iskandarova Mastura   +4 more
doaj   +1 more source

Hybrid binders containing Portland clinker [PDF]

open access: yes, 2020
This bachelor thesis is focused on the use of cement kiln dust in combination with portland clinker. Cement kiln dust is a fine bulk material which is not good to mix further with cement, due to its unsuitable chemical composition.
Kratochvilová, Lucie
core   +2 more sources

Gabbroid Rock of Karakalpakstan Valuable Raw Materials for the Production of Portland Cement [PDF]

open access: yesE3S Web of Conferences
The results of a study of the chemical composition of technological samples of the “ Dusshebulak ” limestone, the “ Sheikhdzhelil ” gabbroic rock, the dune sand of the “Muynak” deposit and the brown ferruginous rock “ Khujakul ” are presented in order to
Orazimbetova Gulistan   +2 more
doaj   +1 more source

Rheological behavior of Portland clinker-calcium sulphoaluminate clinker-anhydrite ternary blend [PDF]

open access: yesCement and Concrete Composites, 2019
Abstract In this paper, the rheological behavior of blended cements consisting of calcium sulphoaluminate clinker (CSA), ordinary Portland clinker (OPC) and anhydrite (C S ¯ ) were investigated. The shear stress-shear rate curves of OPC-CSA-C S ¯ blends with different OPC/CSA/C S ¯ ratios were analyzed.
Tingjie Huang   +5 more
openaire   +1 more source

Preparation of Low-Heat Portland Cement Clinker with Coal Gangue [PDF]

open access: yes, 2011
A kind of low-heat Portland cement clinker was prepared with coal gangue, limestone and gypsum through optimizing the mix proportion of raw materials, and its properties and hydration characteristics were studied.
Guang Li Chen, Wen Hong Tao, Xing Hua Fu
core   +1 more source

The influence of mechanical activation on the process of reaction sintering of Portland cement clinker [PDF]

open access: yesScience of Sintering, 2002
In this paper, results of an investigation of the influence of mechanical activation of a raw material mixture on processes of synthesis and reaction sintering of Portland cement clinker are given.
Živanović Branka D.   +2 more
doaj   +1 more source

Properties of concrete incorporating locally produced Portland limestone cement

open access: yesAin Shams Engineering Journal, 2018
Blended cements are increasingly being used in concrete to reduce the amount of clinker in the cement, thus achieving both economic and environmental gains. The use of limestone as a component of Portland cement is now common practice worldwide. Reducing
Fatma Shaker   +2 more
doaj   +1 more source

Elaboration of α’L-C2S form of belite in phosphatic clinker. Study of hydraulic activity

open access: yesMateriales de Construccion, 1998
Solid state synthesis associated to X-ray diffraction and free lime analysis have been carried out to determine proper conditions (chemical compositions, optimum time and temperature of burning) under which phosphatic belitic clinker is elaborated.
A. Diouri   +4 more
doaj   +1 more source

The relationship between the compressive strength of cement mortar and the chemical composition and fineness of cement [PDF]

open access: yes, 1993
Includes bibliography.The purpose of this research was to determine a method whereby predictions of compressive strength could be made with regard to the chemical composition and fineness of Portland cement.
James, S D
core  

The compressive strength of fly ash concrete and its mineralogy [PDF]

open access: yes, 1994
Includes bibliographical references.The use of fly ash as a cement extender in portland cement concrete is well established. Strict requirements are set for the fly ash on its physical properties and chemical composition to ensme its successful ...
Gogol, Volker R
core  

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