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Estogrout Admix PE

Plasticized Expanding Grout Admixture

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Estogrout Admix PE

 Plasticized Expanding Grout Admixture


Estogrout Admix PE is an admixture for cementitious grouts where a very low water : cement ratio (between 0.25 and 0.35) and positive expansion are required.

It is a combination of plasticizing agent and a gas producing expansion medium. Sufficient restrained expansion is developed to ensure a high degree of interfacial contact.

If pre-packed cement based grout is required instead of an admixture, use Estogrout FP 70, MP 70 or MP 60, which only required additional of water.


Estogrout Admix PE is suitable for use to grout

  • Ground Anchors
  • Steel columns
  • Bed grouting
  • Duct grouting
  • Infilling and jointing


  • Excellent flow and good filling properties
  • Good dimensional stability
  • No bleeding
  • High strength
  • Shrinkage compensated
  • No metallic iron content to corrode and cause staining or deterioration due to rust expansion in the grout.
  • Gives high grout fluidity with very low water : cement ratio, for ease of placement or injection.

Standards Compliance

  •  ASTM C940


Physical Properties

Colour Brown powder
Chloride Content Nil
Setting Time Not affected
Time for Expansion 15mins – 2 hours at 20 °C
Expansion Characteristics, ASTM C940  

0.5% – 4.0%



Application Instructions


Typical mixes




5mm Sand (kg) Water



Estogrout Admix PE (gm) Yield



50 50 17-19 225 52
50 16-18 225 32
50 15-17 300 31
50 14-16 375 30
50 13-15 450 29

Note: It is advised that trial mixes shall be carried out for a particular brand of cement.

Over Dosing

Drastic overdosing (more than 500g / 50kg OPC) of Estogrout Admix PE increases expansion and may cause  severe strength lost.


For best results a mechanically powered grout mixer must be used. For quantities up to 50kg a slow speed drill fitted with a high shear paddle is suitable. Larger quantities will require a high shear vane mixer. It is essential that machine mixing capacity and labour availability is adequate to enable the grouting operation to be carried out continuously. This may require the use of a holding tank with provision for gentle agitation to maintain fluidity.

The selected water content should be accurately measured into the mixer. Slowly add the cement (and sand if required) and Estogrout Admix PE. Mix continuously for 5 minutes, making sure that a smooth even consistency is obtained.


After mixing, areas to be grouted should be prepared in the usual way to ensure, clean, sound, pre-wetted substrates. Place the grout within 20 minutes of mixing to gain the full benefit of the expansion process. Adopt usual placing or pumping procedures ensuring a continuous operation.



On completion of the grouting operation all exposed areas that are not to be cut back should be thoroughly cured. This should be done after the initial hardening of the grout by continuous application of water or by application of suitable curing membrane such as Estocure product range

Typical Result from Laboratory

Typical mixes
Cement OPC
Admixture Estogrout Admix PE
Dosage 225 g / 50 kg OPC
w/c ratio 0.32
Flowability Fluid
Expansion, % 2 – 5
Compressive Strength, N/mm2

1 Day

7 Days

28 Days







Packing & Size

Estogrout Admix PE 20 kg drum

                                                       225g sachet                        


Technical Support

Estop offers a comprehensive range of high performance, high quality of repair product for both new and existing concrete surfaces. In addition, the company offers a technical support package to specifiers, end-users and contractors, as well as on site technical assistance.


Extogrout Admix PE should be stored on pallets in dry conditions. Under these conditions the product will  have  a shelf life of 12 months.


Gloves should be worn when mixing with Estogrout Admix PE. Wet mix shall be wash with clean water when contacted with skin or eyes.

In the event of prolonged irritation, seek medical advice.

Additional Information

Estop manufactures and offers a wide range of complementary products which includes waterstops, waterproofing products, grouts, anchors, specialized flooring products. In addition, a wide range of products formulated for repair and refurbishment of spalled concrete are available.