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  Delta Cement Constituent  
 

Delta is a pozzolanic material derived from fly ash.

Key benefits of Delta are:

It is predominantly composed of spherical aluminosilicate particles.
It has a low residual carbon content.
It has a consistent colour.
It has a low unit cost.
It is supplied in a non-dusting, easy to transport, simple mechanical handling form and is ideally suited for use in precast concrete products.


Delta cement constituent has the following guideline specifications:

 
       
Parameter Typical Value

Retained on a 45 micron sieve

60-75%

Loss on ignition at 950°C

<5%

Particle density

1950-2150kg/m3

Moisture content 12-15%

Sulphate content as SO3

<1%

 

Typical Oxide Analysis

Oxide

Value

(%w/w)

Oxide

Value

(%w/w)

Al2O3 24-25 Mn3O4 <0.1
CaO 2-4 V2O5 <0.05
Fe2O3 8-12 Cr2O3 <0.05

K2O

2-4 BaO <0.2
MgO 1-2 ZrO2 <0.1
Na2O <1 ZnO <0.05
P2O5 <1 SrO <0.1
SiO2 50-52 TiO2 1-2

 
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