Estogrout MP60-S
Estogrout UW
Show all

Estogrout MP90

Plasticized Expanding Grout Admixture

Download Data Sheet

Estogrout MP 90

High Strength Shrinkage Compensated Grout


Estogrout MP 90 non-shrink grout provides high flexural and compressive strength performance. It is a ready to use product in powder form and requires addition of water to produce as non-shrink grout performance.

Estogrout MP 90 is a blend of Portland cement, graded fillers and chemical additives that impart controlled expansion in the plastic state whilst minimizing water demand. The low water demand ensures high early strength. The graded filler is to assist uniform mixing and produce a consistent grout.


Estogrout MP 90 is suitable for a wide variety of precision application at any consistency from pourable to damp-pack. It  is recommended for

  • Crane rails
  • Gas or steam turbines
  • Generators
  • Milling Machines
  • Bedding for bridge bearing pad grouting


  • Excellent fatigue and impact resistance
  • Early strength development even at pourable consistency
  • Non Shrink (Shrinkage Compensated)
  • Proven and predictable performance
  • Excellent workability retention even at high ambient temperature
  • High bond strength to steel and concrete
  • Micro silica content enhances strength and durability
  • No metallic content to cause staining

Standards Compliance

  • ASTM C940
  • ASTM C942


Physical Properties

Water     Powder Ratio : 0.16 1 day (N/mm²) 7 days (N/mm²) 28 days (N/mm²)
Compressive Strength > 30 > 60 > 80
Time For Expansion 15 mins to 2 hours
Expansion Characteristics, ASTM C940  

0.5 – 2.0 %

Yield at Pourable Consistency Approx. 13.55 litres


Application Instructions

Surface Preparation

Foundation surface

The substrate surface must be structurally sound, free from oil, grease or any loosely adherent material. Bolt holes and fixing pockets must be blown clean of any dirt or debris. To assist in the formation of bond between substrate and grout, pre  soaking of the substrate surface with water is advisable.

Base Plate

It is essential that this is clean and free from oil, grease or  scale. Provide air pressure relief holes to allow venting of any isolated high spots.


All formwork used for grouting should be leak proof. This can be achieved achieve by sealing the gap with a foam rubber  strip or sealant.

Mixing & Yield

The quantity of clean water added to a 25kg bag of Estogrout MP 90 to achieve the desired consistency is

Consistency Water Yield
Trowelable 3.50-3.75 litres 12.20 litre
Flowable 4.00-4.25 litres 13.55 litre


Estogrout MP 90 can be placed in thickness up to 100mm in a single pour when used as an under plate grout. For thicker sections, it is necessary to fill out the Estogrout MP 90 using the well-graded silt free aggregate to minimize heat build up. Typically, a 10mm aggregate is recommended. Quantities of aggregate added to the Estogrout MP 90 should not exceed 1 part aggregate to 1 part of Estogrout MP 90 by weight.


On completion of the grouting operation, all exposed areas, which are not to be cut back, should be  thoroughly  cured. Apply curing membrane such as Estocure R90, curing compound with 90% curing efficiency.


Packing & Size

Estogrout MP 90 25 kg bag

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.


Estogrout MP 90 should be stored on pallets in dry conditions. Under these conditions, the product will have a shelf life of 12 months.

Shelf life may reduce if stored in extreme heat locations.


Estogrout MP 90 is alkaline base; it should not be in contact with skin and eyes. Avoid inhalation of dust during  mixing. Wear glovers, goggles and dust mask.

Additional Information

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