Results 91 to 100 of about 900,629 (184)

A high-pressure X-ray diffraction study of the crystalline phases in calcium aluminate cement paste

open access: yes, 2018
Calcium aluminate cement (CAC) has wide application in civil engineering and castable refractory materials. The main binding phases of hardened CAC paste, CaO·Al2O3·10H2O (CAH10), inevitably converts to 2CaO·Al2O3·8H2O (C2AH8), 3CaO·Al2O3·6H2O (C3AH6 ...
Monteiro, Paulo JM   +13 more
core   +1 more source

Early-age behavior of calcium aluminate cement systems [PDF]

open access: yes, 2008
textCompared to the knowledge base for ordinary portland cement concrete (OPCC), relatively little information exists for calcium aluminate cement concrete (CACC), despite its existence for over 100 years.
Ideker, Jason H.
core  

Effect of Polycarboxylate–Ether Admixtures on Calcium Aluminate Cement Pastes. Part 1: Compatibility Studies

open access: yes, 2016
In calcium aluminate cements (CAC), it is recommended to work with low water/cement ratios (for example using superplasticizers admixtures) to avoid the negative effects of metastable hexagonal hydrate conversion to stable cubic ones.
María del Mar Alonso (1872034)   +2 more
core   +1 more source

Conduction calorimetric studies of ternary binders based on Portland cement, calcium aluminate cement and calcium sulphate

open access: yes
Different binders of Portland cement, calcium aluminate cement and calcium sulphate (PC/CAC/CS) have been investigated to determinate the in¿uence the CAC and CS amount in the reactions mechanism.
Torrens Martín, David   +2 more
core  

Temperature effect on calcium aluminate cement based composite binders

open access: yes, 2006
In calcium aluminate cement (CAC) systems the hydration process is different than portland cement (PC) systems. The hydration products of CAC are subjected to conversion depending on temperature, moisture, water-cement ratio, cement content, etc ...
ÖNDER KIRCA
core  

High temperature behavior of calcium aluminate cement pastes [PDF]

open access: yes, 2020
: Calcium aluminate cements (CAC) are important materials today, as they cover a good number of applications in civil engineering, refractory industry and materials science, which is mainly due to their excellent high temperature mechanical properties ...
Zapata Mesa, John Fernando
core  

Reactions of fly ash with calcium aluminate cement and calcium sulphate

open access: yes
The hydration processes in the ternary system fly ash/calcium aluminate cement/calcium sulphate (FA/CAC/C$) at 20 °C were investigated; six compositions from the ternary system FA/CAC/C$ were selected for this study.
Fernández Carrasco, Lucía   +1 more
core  

Limestone reaction in calcium aluminate cement–calcium sulfate systems [PDF]

open access: yes
This paper reports a study of ternary blends composed of calcium aluminate cement, calcium sulfate hemihydrate and limestone. Compressive strength tests and hydration kinetics were studied as a function of limestone and calcium sulfate content. The phase
Bizzozero, Julien, Scrivener, Karen
core   +2 more sources

Sulphoaluminate-Aluminate Cement-Based Composites: Mechanical Behaviors and Negative Poisson’s Ratio Mechanism Under Static Loads

open access: yesBuildings
Because of their excellent properties, calcium aluminate cement (CAC) and sulphoaluminate cement (SAC), as building materials, have been used in infrastructure construction. However, due to the defects in microstructure, their application and development
Qin Chang   +7 more
doaj   +1 more source

The Hydration Products of a Refractory Calcium Aluminate Cement at Low Temperatures [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2007
Calcium aluminates (CA) are the most important hydraulically setting cements used for preparing refractory castables, because they develop high strength at very early ages after placements.
Mohammad Reza Nilforoushan   +1 more
doaj  

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