Drizoro Maxrest Concrete Spalling Repairs


Navy Job Video | Concrete Repairs Video  | Technical Data | MSDS 

Cement like quick-setting time, 15 to 20 minutes – allows fast repair process, becomes part of the substrate, are structurally sound, DOES NOT slump or need formwork, does not shrink or crack when setting just trowel into concrete cancer.  Odour-free and non-toxic, ideal to use in badly ventilated places, such as water tanks, shafts, sewers, etc. Does not contain any chloride. Add only clean water for mixing.


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Drizoro Maxrest Concrete Spalling Repairs the best Concrete Repair Mortar Ever.

Navy Job Video | Concrete Repairs Video  | Technical Data | MSDS 

Drizoro Maxrest concrete spalling repairs a one-component structural repair mortar, made of special cements, additives and selected aggregates, which produces a thixotropic product with a quick-setting time that does not shrink or crack.

Maxrest firmly adheres to the surface to which it is applied. Restoring the concrete to its original condition. Making your selection of Drizoro Maxrest concrete spalling repairs the best choice of all concrete spalling repair methods is Drizoro Maxrest

Drizoro Maxrest Concrete Spalling Repairs – Applications
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  • For general repair and restoration work on concrete spalling repairs, structural concrete.
  • Repairs honeycombs, cracks and fissures.
  • Patching and protective covering of reinforcing rods affected by corrosion.
  • To repair lintels, rain, water tanks, and to restore architectural concrete permanently exposed to climatic conditions.
  • Sealing of construction joints prior to waterproofing works in tanks, swimming pools, basements, etc.
  • For restoration of lines and shapes of damaged prefabricated concrete elements.

7 Benefits of using Drizoro Maxrest 

  1. Its quick-setting time, from 15 to 20 minutes, allows for a fast repair process.
  2. It forms part of the substrate and repairs are structurally sound, with properties comparable to or higher than concrete.
  3. DOES NOT slump or need formwork.
  4. It does not shrink or crack when setting.
  5. Odour-free and non-toxic, making it the ideal material to use in badly ventilated places, such as water tanks, shafts, sewers, etc.
  6. Does not contain any chloride.
  7. Only needs the addition of clean water for mixing.

Technical Data

Drizoro Maxrest Technical Data-ows, drizoro maxrest concrete spalling repairs

Concrete Spalling Repair Methods – Drizoro Maxrest 

Surface Preparation: 

Prepare your Drizoro Maxrest concrete spalling repairs surface so that it should be clean and free of dirt, grease and loose particles. Remove all damaged and unsound concrete to expose a structurally sound substrate. Expose all reinforcement affected by rust.

Remove concrete all around the bars for efficient cleaning and to surround it with a minimum thickness of at least 1 cm of Drizoro Maxrest.

Eliminate rust by wire brush, needle gun, sand or shot blasting, etc. Apply a slurry coat of Drizoro Maxrest or oxide converter Maxrest Passive (Technical Bulletin nº 12). After cleaning, wash the concrete with water. Before applying Drizoro Maxrest, wet the surface but do not leave free-standing water.


A 25 kg bag of Drizoro Maxrest is mixed with between 3,5 to 4,0 litres of clean water, depending on the ambient conditions and the consistency required, either manually or mechanically by a low speed drill (400 – 600 r.p.m). Drizoro Maxrest takes fifteen to twenty minutes to set, depending on the temperature.  Only mix the amount of Maxrest that you can apply within eight to ten minutes.


For an optimum bond, prepare a slurry mixing 5 parts of Maxrest with 1 part of water, mixing well until achieving a homogeneous consistency without any lumps. Apply the slurry using a Maxbrush type brush onto the concrete spalling repairs surface to be repaired and on the reinforcement bars, filling all voids and pores, allowing 5 to 8 minutes before continuing the repair.

While the slurry is still fresh, start placing Drizoro Maxrest with its consistency of repair mortar. Apply in successive layers between 2,5 and 3 cm, scratching the surface with the trowel to make the next layer adheres firmly. Between layers, wait 10 to 15 minutes depending on temperature. If the different layers become warm, wet the surface with cold water.

Application Conditions:

Do not apply Maxrest at temperatures below 5 ºC.

  • lower temperatures are expected. Within the following 24 hours after application. Do not apply onto frozen or frosted surfaces.

Curing:- For better curing, once the REPAIR is complete, cover with a wet cloth to protect from high temperature or direct hot sun.


Clean all tools and equipment immediately with water after use. Once Drizoro Maxrest hardens it can only be removed by mechanical methods.


Estimated consumption of Maxrest is approximately 1,67 kg/m2 per 1 mm thickness. One kilogram of Drizoro Maxrest will fill approximately 0,6 litres.

Packaging: Drizoro Maxrest is supplied in 25 kilogram drums and 5 kilogram cans.

Storage: Eighteen months in bags, 36 months in drums and cans, in their unopened original packaging, in a dry and covered place protected from damp and frost, with temperatures above 5 ºC.

Important Cautions DO NOT: 

  • never use leftover mixed material to prepare a new batch.
  • add sand, aggregates or cement to increase volume.
  • use high speed mixers • Do not mix for prolonged periods. Scratch the surface Finish the edge Final finish
  • apply on painted or structurally weak surfaces.
  • apply in layers exceeding 3 cm thickness.
  • allow the layers to heat up; Mist spray with water if required.
  • Setting time is measured at 20 ºC. Higher temperatures reduce the setting time and lower temperatures delay the setting time.
  • With low temperatures keep the product in a warm place and use lukewarm water to accelerate the setting time.
  • With hot temperatures keep the product in a cool place and use fresh clean water for the mix. Wet the different layers. Mix small batches of material and apply immediately.

For further information consult our Technical Department.

Safety And Health: 

Drizoro Maxrest is non-toxic but like all cementitious products, it is an abrasive compound. Use rubber gloves and safety goggles to mix and apply the mortar mix. In case of skin contact, wash affected areas with soap and water.

In case of eye contact, rinse with clean water but do not rub. If irritation continues, seek medical attention. Safety Data Sheet of Drizoro Maxrest is available by request. Dispose of empty packaging and any leftover product according to national regulations by the final user.


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Checkout the video for concrete spalling repair method

UNDERSTANDING Concrete Spalling Repairs – Spalling can caused by freezing and thawing, deicing chemicals leaves ugly pits in a concrete driveway. Concrete spalling repairs are then necessary https://www.concretenetwork.com/fix-spalled-concrete/ 


Drizoro Maxrest for all your concrete spalling repairs,

Remember, NO form work required. Maxrest is a non slump quick setting mortar and requires a damp clean surface for proper bonding





Guarantee The information contained in this leaflet is based on our experience and technical knowledge, obtained through laboratory testing and from bibliographic material. Drizoro reserves the right to introduce changes without prior advice.

Use of this data beyond the purposes expressly specified in the leaflet will not be the Company´s responsibility unless authorised by us. The data shown on consumptions, measurement and yields are for guidance only and based on our experience. This data is subject to variation due to specific atmospheric and jobsite conditions so reasonable variations from the data may be experienced. 

Testing on jobsite is recommended. This is the client’s responsibility. We shall not accept responsibility exceeding the value of the purchased product. For any additional information, consult our Technical Department. © Scientific Waterproofing Products Pty Ltd. ABN: 155 659 948 All rights reserved.

Additional information

Weight 25 kg

15 Kg Handiipack, 25 Kg Drum, 5 Kg can