A ternary optimization of alkali-activated cement mortars incorporating glass powder, slag and calcium aluminate cement

2020 ◽  
Vol 240 ◽  
pp. 117983 ◽  
Author(s):  
Pingping He ◽  
Binyu Zhang ◽  
Jian-Xin Lu ◽  
Chi Sun Poon
Keyword(s):  
Calcium Aluminate ◽  
Glass Powder ◽  
Calcium Aluminate Cement ◽  
Cement Mortars ◽  
Aluminate Cement ◽  
Alkali Activated ◽  
Alkali Activated Cement

Composite Geopolymeric Binders of Fly Ash, Effect of the Particle Size and Addition of Calcium Aluminate Cement

2013 ◽  
Vol 1612 ◽  
Author(s):  
L.L Cardona-Hernández ◽  
J.I. Escalante-García
Keyword(s):  
Particle Size ◽  
Fly Ash ◽  
Calcium Aluminate ◽  
Calcium Aluminate Cement ◽  
Curing Temperature ◽  
Chemical Characteristics ◽  
Factorial Experimental Design ◽  
Response Variable ◽  
Aluminate Cement ◽  
Alkali Activated

ABSTRACTAn investigation on composite geopolymeric binders, based on alkali activated fly ash (PFA) substituted with low-alumina calcium aluminate cement (CAC), was carried out using a Factorial experimental design in which the factors and levels were: %Na2O, 8-12%; modulus of the solution Ms=SiO2/Na2O =0 - 2, 10-30 wt% of CAC and fineness of PFA (D90) from 161.8 to 6.46 microns. The contribution of each factor was estimated with the 28-day compressive strength as the response variable. The curing temperature was 24h@60°C, and then at 20°C until mechanical testing. The specimens were also characterized by XRD and SEM. The results showed that the grinding modified the morphology of the PFA without changing the crystallographic or chemical characteristics as detected by XRD; and improved the mechanical properties of the geopolymers. The strength increased notably with the Ms up to 1, and reduced for Ms >1; the strength increased with the %Na2O and %CAC. Electron microscopy showed a higher densification at smaller PFA particle size, and the CAC addition promoted the formation of zeolite and Na2O-Al2O3-SiO2-H2O products.

Alkali-activated blends of calcium aluminate cement and slag/diatomite

2013 ◽  
Vol 39 (8) ◽  
pp. 9237-9245 ◽  
Author(s):  
K. Arbi ◽  
A. Palomo ◽  
A. Fernández-Jiménez
Keyword(s):  
Calcium Aluminate ◽  
Calcium Aluminate Cement ◽  
Aluminate Cement ◽  
Alkali Activated

Petrographical analysis of calcium aluminate cement mortars

1999 ◽  
Vol 29 (12) ◽  
pp. 1881-1885 ◽  
Author(s):  
Garcı́a del Cura ◽  
P. Garcés ◽  
E.Garcı́a Alcocel
Keyword(s):  
Calcium Aluminate ◽  
Calcium Aluminate Cement ◽  
Cement Mortars ◽  
Aluminate Cement

Effects of the addition of inertized MSW fly ash on calcium aluminate cement mortars

2017 ◽  
Vol 157 ◽  
pp. 1106-1116 ◽  
Author(s):  
O. López-Zaldívar ◽  
R.V. Lozano-Díez ◽  
A. Verdú-Vázquez ◽  
N. Llauradó-Pérez
Keyword(s):  
Fly Ash ◽  
Calcium Aluminate ◽  
Calcium Aluminate Cement ◽  
Cement Mortars ◽  
Aluminate Cement
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