MAXROAD®
CEMENT-BASE, FAST-SETTING PATCHING MATERIAL FOR CONCRETE BRIDGE DECKS, EXPRESSWAYS

Description

A cement-base, fast-setting patching material that develops high compressive strenghts and will allow traffic bearing patches to be put back in service after 2 hours from time of placement.

Uses

Urgent repairs in concrete pavements subject to permanent traffic.

Advantages

- Good adherence.
- Can be applied to damp surfaces.
- Traffic bearing 2 hours approximately.
- Fast-setting.
- Freeze-thaw resistant.
- Contains no chlorides.
- Easy to apply.
- Product of an only component.

Instructions

Surface preparation. Surfaces to be patched must be clean, structurally resistant and free of all dirty, oily, etc., before applying MAXROAD. Do not feather edge patches, either cut orchip to a minimum depth of 3 cm around the edge of the patch.
Mixing.
Thoroughly mix the product in the ratio, of approximately 4 - 4,5 litres of water to 25 Kg. of MAXROAD. Mix until the product has achieved mortar consistency (2 minutes if blending by hand or 1 minute using a mechanical mean).
To improve adherence use in the mixing a mixture of 2 parts of MAXCRYL to 1 part of water instead of use only water. The incorporation in its mixing of a fibre-glass improves the mechanical resistances to compression, flexion, impact and wear.
For patches with a depth of 3 - 5 cm, use the pure product without adding gravel. For patches in excess of 5 cm add to 25 Kg. of MAXROAD 8 Kg. of 10 mm dry, clean aggregate, stone or gravel.
Application.
Before applying MAXROAD, wet the surface to be treated and apply a slurry coat of MAXROAD. Then apply it with its normal consistency, forcing the material against the sides and bottom of the patch area. Leveling can be done by trowel or other procedures.

Product Requirement

1 Kg. fills approximately 620 cm³

Packaging

25 Kg. bags and drums.

Storage

In bags and in a dry place, one year; in drums, 18-24 months.

Caution

Temperature.
Do not apply on frozen or frost-filled surfaces or if the temperatures are below 5° C.
Manipulation.
MAXROAD is abrasive and protective rubber gloves must be used to prepare the mixture and apply it. If any of the mixture gets into the eyes, rinse thoroughly with clean water, but do not rub. If irritation continues, consult a doctor.

Test Data

AGE | Mechanical Resistances (Kp/cm²)
Flexotraction | Compression
2 hours | 15 | 47
4 hours | 19 | 73
1 day | 28 | 105
7 days | 55 | 404
28 days | 89 | 428
After 20 freeze-thaw cycles | 73 | 525

Mixing water, % : | 15,0 ± 0,5
Density in powder Kg/m³ : | 1.220 ± 50
Density of hardened material, Kg/m³ : | 2.040 ± 50
Adherence (over concrete surface), Kp/cm² : | 18,0
Dimensional stability, mm/m : | —0,006
Set, minutes |
Initial : | 15
Final : | 25
Appearance of the tubes after the testing of freze-thaw cycles : | without physical change
Chlorides (cl), % : | None

Tests performed by I.E.T.C.C., december/92.
Eduardo Torroja Institute for the Construction and Cement.
I.E.T.C.C. is Member of European Union for Construction Technical Agreement.

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.