BETEC 311 / 330
| Description |
|---|
BETEC 311 / 330 are synthetic modified and strengthened by synthetic fibre repair mortars based on Portland cement. These mortars are also highly suited for manually performed repairs (pcc) as well as for the wet-guniting system.
|
| Type | Grain structure | |
| 311 | 0-1 | |
| 330 | 0-4 |
| Quality control |
|---|
During manufacturing only high-quality aggregates are used, which meet the strictest requirements. During the production process as well as during the final stages these materials are extensively tested for quality, not only in our own laboratory, but also in independent acknowledged institutes. |
| Application areas | Advantages |
|---|---|
|
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| Packaging and storage |
|---|
| 25 kg bags. Dry and frostproof, storage life 12 months in the ori |
| Precautions |
|---|
| Refer to safety sheets. |
| BETEC Wet guniting system with D200 grouting machine |
|---|
| * BETEC 031 primer * BETEC 311/330 |
| Article Code | 311 | 330 |
|---|---|---|
| Kind of mortar | trowel mortar | trowel mortar |
| Type of mortar [mm] | 1 | 4 |
| Thickness of layer [mm] | ||
| • 1 layer (SPCC II) | 3-15 | 10-20/ 10-40 |
| • > 1 layer (SPCC III) | 10-30/ 10-60 | |
| Interval to be observed in between layers being sprayed (min/max) | ||
| • 10°C | 90-180 | 90-180 |
| • 20°C | 60-150 | 60-150 |
| • 30°C | 30-120 | 30-120 |
| Class of strength | K50 | K50 |
| Environental degree | xo t/m xa3 | xo t/m xa3 |
| Application class | RC3 | RC3 |
| Desiccation shrinkage [mm/m] | ||
| • after 7 days | 0.7 | 0.6 |
| • after 91 days | < 1.2 | < 1.2 |
| (measurement of shrinkage on experimental patches that received no curing) | ||
| Water penetration [mm] | < 10 mm | < 10 mm |
| Resistance to frost and gritting material (salt) (25 cycles) [mg/mm²] | < 0.4 | < 0.4 |
| Carbonatation depth (91 days) [mm] | < 2 | < 2 |
| Halogen content [%] | < 0.05 | < 0.05 |
| Thermic expansion coefficient [°C] | < 15 x 10-6 | < 15 x 10-6 |
| Polymer | resistant to alkaline substances (no saponification) | resistant to alkaline substances (no saponification) |
| Water segregation (bleeding) | none | none |
| Min. processing temperature ** [°C] | 5 | 5 |
| Max. processing temperature [°C] | 35 | 35 |
| Rel. Relative humidity foundation soil | moderately damp | moderately damp |
| Bond strength to concrete [N/mm²] | >2 | >2 |
| Water dosage | refer to front of package | |
| Polymer content [%] m/m | < 20 | < 20 |
| Air content [%] | approx. 5.0 | ca. 5.0 |
| E-module (N/mm²] | 38500 | 40500 |
| Calculation of amount of dry mortar [kg/m³] | 1930 | 2000 |
| Density of mixed mortar (kg/dm³) | 2.09 | 2.26 |
| Compressive strength [N/mm²](20°C) | ||
| • 1 day | 28.0 | 36.0 |
| • 3 days | 42.0 | 45.0 |
| • 7 days | 52.2 | 60.0 |
| • 28 days | 57.0 | 68.0 |
| • 91 days | 63.5 | 77.4 |
| Flexural-tensile strength [N/mm²] (20°C) | ||
| • 1 day | 6.0 | 6.0 |
| • 3 days | 7.0 | 7.0 |
| • 7 days | 8.6 | 7.5 |
| • 28 days | 9.3 | 8.5 |
| • 91 days | 10.6 | 9.0 |
| 1SPCC II: processing overhead / SPCCIII: processing on rectangular constructions. | ||
Complies with CUR recommendation 54 Note:in case of partial recesses layers of up to 50 mm thick can be sprayed in one go.
| Processing advice | |
|---|---|
| Anchor Fixations | General Processing Advice Trowel and wet guniting grouts (cement-bound) [B] |
Liability
The technical instructions and recommendations we provide on the basis of our experience and to the best of our knowledge, are entirely without obligation and merely provide an indication. Not all facts, problems and queries that occur during practical application can be included in a general documentation sheet. Our recommendations and instructions do not commit us to any legal obligations as a result of the purchase and application of our products. Any deviating agreements made by our employees that are not included in our datasheets will only be lawful providing they have been confirmed in writing by the management. Our raw materials, semi-finished products and products comply with the most stringent quality standards. This does not relieve the user of their responsibility to test our products prior to their application. Our general trading and delivery conditions, which we are happy to forward to you on demand, are and remain applicable at all times.
This specification sheet supersedes any previous versions.
