Kinetics of the solid-phase reactions occurring during the production of clinker of a high-alumina cement by sintering

Refractories ◽  
1988 ◽  
Vol 29 (7-8) ◽  
pp. 445-449
Author(s):  
N. V. Pitak ◽  
L. G. Litvin ◽  
Ya. Z. Shapiro ◽  
A. N. Gaodu ◽  
A. P. Nikonova
Keyword(s):  
Solid Phase ◽  
High Alumina ◽  
Alumina Cement ◽  
High Alumina Cement ◽  
Solid Phase Reactions ◽  
Kinetics Of

The influence of NaCl on the reactivity of high alumina cement in water: Pore-solution and solid phase characterization

1994 ◽  
Vol 9 (6) ◽  
pp. 1533-1539 ◽  
Author(s):  
S. Goñi ◽  
M.T. Gaztañaga ◽  
J.L. Sagrera ◽  
M.S. Hernández
Keyword(s):  
Pore Solution ◽  
Solid Phase ◽  
High Alumina ◽  
Sodium Ions ◽  
X Ray Diffraction ◽  
Mechanical Pressure ◽  
Alumina Cement ◽  
X Ray ◽  
High Alumina Cement ◽  
Phase Characterization

The influence of NaCl (3% of Cl−by weight of cement) on the reactivity of High Alumina Cement (HAC) in water has been studied over a period of one month. The changes in microstructure were monitored by x-ray diffraction and scanning electron microscopy. The pore-solution, extracted by the application of high mechanical pressure (500 MPa), was studied for the chemical composition and changes caused by chloride and sodium ions.

The conversion of high alumina cement

1975 ◽  
Vol 27 (91) ◽  
pp. 59-77 ◽  
Author(s):  
H. G. Midgley ◽  
Ann Midgley
Keyword(s):  
High Alumina ◽  
Alumina Cement ◽  
High Alumina Cement

Production of high-alumina cement clinker by fusion in an electric furnace

Refractories ◽  
1984 ◽  
Vol 25 (5-6) ◽  
pp. 293-296 ◽  
Author(s):  
I. N. Sorokin ◽  
T. M. Golovina ◽  
D. S. Rutman ◽  
A. D. Popov ◽  
V. M. Ust'yantsev ◽  
...  
Keyword(s):  
Electric Furnace ◽  
Cement Clinker ◽  
High Alumina ◽  
Alumina Cement ◽  
High Alumina Cement

Physical and chemical characteristics of heat resistant materials based on high alumina cement

2021 ◽  
Author(s):  
Dana Koňáková ◽  
Eva Vejmelková ◽  
Vojtěch Pommer ◽  
Martin Keppert ◽  
Anton Trník ◽  
...  
Keyword(s):  
High Alumina ◽  
Chemical Characteristics ◽  
Alumina Cement ◽  
High Alumina Cement ◽  
Physical And Chemical Characteristics ◽  
Heat Resistant ◽  
Physical And Chemical

Measurement of high-alumina cement-calcium carbonate reactions using DTA

Clay Minerals ◽  
1984 ◽  
Vol 19 (5) ◽  
pp. 857-864 ◽  
Author(s):  
H. G. Midgley
Keyword(s):  
Compressive Strength ◽  
Calcium Carbonate ◽  
High Alumina ◽  
Curing Time ◽  
Lower Strength ◽  
Alumina Cement ◽  
High Alumina Cement ◽  
Strength Tests ◽  
The Stability

AbstractHydrating high-alumina cement will react with calcium carbonate to form the complex mineral calcium carboaluminate hydrate, 3CaO.Al2O3.CaCO3.12H2O. This mineral is reported to be capable of providing strength in concrete and so may provide an alternative to the minerals normally found in the hydration of high-alumina cement, which may under certain conditions convert to other minerals with a loss in strength. Some doubt has been cast on the stability of calcium carboaluminate hydrate and it has been found that in hydrated high-alumina cement, calcium carboaluminate hydrate decomposes at temperatures in excess of 60°C. Cube compressive strength tests on high-alumina cement and high-alumina cement-calcium carbonate pastes have shown that the latter have a lower strength than pastes made with high-alumina cement alone. When cured at 50°C the high-alumina cement-calcium carbonate pastes show a loss in strength with curing time. Cements made with the high-alumina cement-calcium carbonate mixture always have a lower strength than those made with high-alumina cement alone and so no advantage is gained from their use.

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