MAXRITE®
A FAST-SETTING POLYMER MODIFIED CEMENTITIOUS REPAIR MORTAR

Description

A fast-setting polymer modified cementitious mortar designed for structural repair of new or old concrete.
Spalled and broken concrete can be restored to its original condition without form work.

Uses

Replacement of concrete with corroded reinforcements, due to carbonation, excessive chloride concentration, alkali-silica reaction, etc.

Advantages

- Quick setting. Repair can be completed in one operation.
- Finished result comparable to original concrete.
- Odourless, non-toxic, waterproof.
- Can be used for repair of tanks, reservoirs and water retaining structures, canal banks, fish ponds, bridges or high rise concrete structures.
- Good adhesion to reinforcement bars and inhibits rusting.
- Freeze-thaw resistant.
- Good impact strength.
- Long life.

Preparation

Remove all damaged and loose concrete to expose a structurally sound base.
If visible, expose all re-inforcement bars and grit blast or otherwise clean, to remove all rust and scale. Do not use metallic brooms. Renew steel if necessary.
Edges to surface must be clean cut to avoid any feather edging. Dampen whole of exposed surface but leave no free standing water.

Mixing

Mixing liquid should consist of equal parts of MAXCRYL and water. For the slurry coat mix the MAXRITE powder with mixing liquid to a batter consistency. For the repair mortar use 2,5-3 liters of mixing liquid per 25 Kg. of MAXRITE. Power or manual mixing may be used.
Do not over-mix.

Application

Apply a slurry coat of MAXRITE mix by brush over and under reinforcing rods and surface of prepared concrete and into voids.
Add more MAXRITE powder to remaining slurry and mix to achieve a mortar consistency.
Apply MAXRITE by trowel to prepared area, forcing mixture into voids and under re-inforcement bars. Apply in layers of 3-4 cms at a time. Scratch each layer and apply next layer when previous layer set (approx. 15 to 20 mins. According to temperature).
Pot life of MAXRITE is 20 minutes.
Remodel final layer to original profile.
Within 30 minutes of final shaping, coat whole structure with MAXSEAL and MAXCRYL. Structure is now completely restored. It is waterproof and damaged areas are indistinguishable.

Technical Data

Density, wet condition: | 2,16 Kg/dm³
Coverage: | 2 Kg/dm³
Setting time, minutes |
Initial: | 12 - 15
Final: | 18 - 22
Modulus of elasticity | 30 x 10³ N/mm²
Thermic shrinkage and expansion coefficient: | 6,41 x 10-6 m/m K
Granulates (maximum): | 0,7 mm
Compressive strength, after 28 days: | 45,8 N/mm²
Flexural strength, after 28 days: | 9,0 N/mm²
Adhesion strength, after 28 days: | 2,1 N/mm²
Traction strength, after 28 days: | 6,0 N/mm²
Suitable under BS 6920 for potable water reservoirs

Curing

Under extremely windy or hot conditions, dampen all applied material with a fine spray of water for at least an hour.
Under extreme weather conditions (hot or cold) cover the restored surface with an insulation material.
Do not use curing compounds.

Application Temperature

Do not apply to frost-covered surfaces nor when temperatures expected to fall below 5° C within 12 hours.

Packaging

25 Kilogram sack or drum.

Storage

In sacks and in a dry place, 6 months; in drums, 18 months.

Caution

As all cement products, MAXRITE is abrasive. Protective rubber gloves must be used to prepare the mixture and apply it. If any of the mixture gets into the eyes, rinse tho roughly with clean water, but do not rub. If irritation continues, consult a doctor.

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 notice. Any use of this data beyond the purposes expressly specified in the leaflet will not be the Company’s responsibility unless authorised by us. We shall not accept responsibility exceeding the value of the purchased product.

© 2003 DRIZORO S.A. All rights reserved.