MTDA® Grinding Aid Pack Sest Inhibitor

Grinding Aid/Pack Set Inhibitor

Product Description 

MTDA® is a special chemical formulation of polyalcohols supplied as a non-toxic opaque liquid miscible with water. It has the following characteristics:

  • Specific Gravity: 1.10 - 1.11
  • pH: 7 - 12
  • Viscosity: 90 cps @ 24°C

Handling 

MTDA may be sprayed as received into the mill’s first compartment or added onto the clinker conveyor belt. Dilution with up to 8 parts water is recommended to ensure greater proportioning accuracy and better distribution of MTDA.

Suitable proportioning pumps with adjustable flow rates should be used for consistent performance of the additive.

Addition Rates 

The dosage rate of MTDA will depend on the fineness and the re-agglomeration characteristics of each cement. Typical dosage rates will vary from 0.01% - 0.05% by weight of cement for Types I & II cements and from 0.04% - 0.08% by weight of cement for Type III cements.

The optimum dosage rate must be determined during full scale cement mill tests.

Product Advantages 

  • Increased mill output at same cement fineness
  • Reduced grinding costs
  • Improved cement strengths
  • Increased cement flowability
  • Easy and safe handling Typical cement mill output increases with MTDA versus Blank as shown in the Table on back.

Dosing Equipment 

GCP grinding aids should be accurately dispensed through a calibrated dosing system, suitable for the cement mill and output required.  

Specification Compliance 

MTDA is approved for use under ASTM C 465 specification as a non-harmful, processing addition for cements.

Packaging 

MTDA is supplied in 210 L (55 gal) drums, or in bulk by tanker trucks. It contains no flammable materials.

Storage 

Protect from freezing. Once frozen, the product should be thawed out slowly and re-mixed thoroughly prior to use.

Technical Services 

Field Engineers from GCP are available to assist in laboratory and mill test evaluations of MTDA. Complete testing equipment and methods for analyzing mill performance and pack set index are also available during plant trials.

MTDA vs Blank – Typical Cement Mill Output

Types of Cement Grinding Aid Used Dosage Range (%) Relative Mill Output of Same Cement Fineness (%) Typical Pack Set Index Typical Power Consumption (kWh/t)
I & II Blank MTDA Nil 0.01 -0.05 

100

108 - 120

50

12

43

34

III Blank MTDA Nil 0.04 -0.08

100

115 - 140

70

15

54

43

gcpat.it | Servizio clienti in Italia:: +39 02 93537291

Questo documento è aggiornato solo a partire dall'ultima data di aggiornamento sotto riportata ed è valido solo per l'uso in Italia. È importante fare sempre riferimento alle informazioni attualmente disponibili all'URL sottostante per fornire le informazioni più aggiornate sul prodotto al momento dell'uso. Ulteriori pubblicazioni come manuali per i contraenti, bollettini tecnici, disegni di dettaglio e raccomandazioni sui dettagli e altri documenti pertinenti sono disponibili su www.gcpat.it. Le informazioni trovate su altri siti Web non devono essere invocate, in quanto potrebbero non essere aggiornate o applicabili alle condizioni della tua posizione e non accettiamo alcuna responsabilità per il loro contenuto. In caso di conflitti o se occorrono ulteriori informazioni, contattare il servizio clienti GCP.

Last Updated: 2018-11-30

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