MA.P.E./Cr 05

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MA.P.E./Cr 05 The Liquid Revolution
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DAM - Cement Grinding Aids Division
MA.P.E./Cr 05 - Characteristics

• White Liquid Product
• Based on Antimony Trioxide
• Liquid suspension
• Two versions available
• MA.P.E./Cr 05 LV (Low Viscosity) for normal
  use
• MA.P.E./Cr 05 AF (Anti Freeze) for cold
  environments (up to -15C)

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DAM - Cement Grinding Aids Division
MA.P.E./Cr 05 - Advantages

• Reduced Costs, similar to Iron salts
• Very long lasting Cr(VI) reduction, 1 year
• Easy to use, dosing requires a pump only
• Low and stoichiometric dosage, no waste material
• Neutral pH (No ADR)
• Patented Technology, result of Mapei expertise
  and RD

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DAM - Cement Grinding Aids Division
MA.P.E./Cr 05 How does it work?

• Cr(VI) reduction with MA.P.E./Cr 05 can be
  explained in four steps
• Dosing MA.P.E./Cr 05
• Cement grinding
• Cement storage
• Cement hydration and Cr(VI) reduction.

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DAM - Cement Grinding Aids Division
MA.P.E./Cr 05 How does it work?

• Step 1 Dosing MA.P.E./Cr 05
• It is recommended to dose directly on the clinker
  conveyor
• Indicative dosage 50 g / ppm Cr(VI) / ton cement.

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DAM - Cement Grinding Aids Division
MA.P.E./Cr 05 How does it work?

• Step 2 Cement Grinding
• MA.P.E./Cr 05 must be ground with the cement in
  order to break down the suspension and mix it
  into the cement.

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DAM - Cement Grinding Aids Division
MA.P.E./Cr 05 How does it work?

• Step 3 Cement Storage
• MA.P.E./Cr 05 does not suffer heat or humidity
  it remains asleep inside the cement.

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DAM - Cement Grinding Aids Division
MA.P.E./Cr 05 How does it work?

• Step 4 Cement Hydration and Cr(VI) reduction
• Once the cement is hydrated (pH rises gt 12,
  Cr(VI) is released), MA.P.E./Cr 05 becomes
  soluble and reduces Cr(VI).

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DAM - Cement Grinding Aids Division
MA.P.E./Cr 05 - Costs

• Indicative price 2,50 / kg
• Example costs

Start Value Cr(VI) (ppm) End Value Cr(VI) (ppm) Dosage (g/ton) Cost (/ton)
10 0 500 1,250
10 1 450 1,125 (-10)
5 0 250 0,625
5 1 200 0,500 (-20)