Proset AF
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Proset AF
 

Proset
AF

ALKALI-FREE SPRAYED CONCRETE ACCELERATOR
 
Advantages:
  • Rapid setting; allows thick sections to be built-up
  • Alkaline free
  • Minimum rebound
  • Single-pass spraying for thick layers
  • Excellent for overhead applications
  • Can be used for 'wet and dry' processes
Description:

Proset AF is a set accelerating, alkaline and chloride free admixture used for sprayed concrete, shotcrete and gunite processes.

Usage

  • Inner lining
  • Initial and permanent support of surfaces in underground spaces
  • Slope and rock stabilization
  • Repair and renovation work 

Materials Supplied

Proset AF is available in 5 gal (19 litre) containers as well as 275 gal (1,041 litre) and 330 gal (1,249 litre) IBC totes. Bulk supply in tanker trucks is also available upon request. 

Shelf Life

Proset AF has a shelf life of 3 months from date of manufacture if stored in a dry area out of direct sunlight and exposure to frost in its original unopened container at temperatures between 41˚F and 95˚F (5°C and 35°C).

Material needs thorough mixing before usage, and for bulk storage, site agitation or recycling pumps is a must.

Application Instructions

Stiffening occurs approximately after 10 seconds of mixing concrete with Proset AF. As with all other processes and products, the rapid initial acceleration of the cement hydration process affects the ultimate concrete strength.

DISPENSING AND MIXING

Proset AF is typically introduced directly aFTer the air ring in the spray nozzle. In order to obtain a consistent supply of admixture at the nozzle, the delivery system should have an 87 psi pressure pot (600 KPa), and a ¾” (19 mm) inside diameter pressure delivery hose controlled by a pressure restrictor and tap.

With the 'wet process', the use of a water-reducing admixture to reduce the water content while increasing the workability of the mix is recommended

DOSAGE

The optimum dosage for Proset AF to meet specific requirements should be determined by trials using the materials and conditions experienced in actual use, and this will determine the optimum dosage to be used and ensure the most cost effective site application.

The typical dosage range for Proset AF is 77 to 108 fl oz/100 Ib (5,005 to 7,020 ml/100 kg) of cementitious and cement replacement material by weight, including PFA, GGBFS or micro-silica.

USE AT OTHER DOSAGES

Dosages outside the typical range mentioned above may be used if necessary to meet particular mix requirements. Compliance with requirements must be assessed through trial mixes. For further information and support, contact DCP's Technical Department

EFFECTS OF OVER DOSAGE

An overdose of the intended amount of Proset AF will result in the reduction of the setting of the mix and will result in some loss of strength.

HEALTH AND SAFETY

Proset AF is not classified as a hazardous material. Proset AF should not come into contact with skin and eyes. Goggles and gloves should be used.

In case of contact with eyes, immediately flush with plenty of water and seek medical attention.

GENERAL GUIDANCE

This data sheet is for general guidance purposes only and may contain information that is inappropriate for certain conditions of use. Accordingly, all recommendations and suggestions are made without guarantee. Further information is available from our Technical Department



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Don Construction Products Inc.

Headquarters
2826 Lineberger Industrial Dr.
Lancaster, SC 29720

Tel: +1 803 286 5430
Fax: +1 803 286 5432