Element Concrete PF70
Expanding liquid concrete for grouting
Marlon Element Concrete PF70 is a factory-produced expanding liquid mortar made of Portland cement, mineral adhesives, additives and oven-dried silica sand with a controlled grain curve. Marlon Element Concrete PF70 requires only the addition of water and, when mixed, is a very fluid pumpable concrete. For large projects, Marlon Element Concrete PF70 mortar can be applied with the help of a suitable screw or piston pump. The product satisfies the material requirements for the extra aggressive environmental class E (see DS/EN 206 DK NA:2020).
- Good casting properties
- Rapid high strength
- Just add water
Marlon Element Concrete PF70 is used for grouting columns and prefabricated concrete elements, as well as for grouting corrugated pipes or for projects where access is difficult using traditional pouring methods. Marlon Element Concrete PF70 can generally be used in thicknesses of about 5 mm up to 60 mm.
To ensure the best possible adhesion for existing concrete, the surface must be cleaned of any cement slurry, oil, grease or other loose impurities through, e.g. chipping, sandblasting or high-pressure cleaning, and reinforcing iron must be cleaned of rust and chlorides. The cleaned surface must be watered, to produce a uniform, dull and slightly absorbent surface. Metal surfaces must be cleaned of any grease, rust etc.
Mix Marlon Element Concrete PF70 with pure cold water (approx. 14-15 weight percentage). The dry powder and approx. 80% of the water for mixing is poured into a suitable agitator mixer. During mixing, the remaining water is added until you achieve a very fluid, lump-free concrete. Manual mixing can be done in a tub/bucket using a drill with a two-bladed propeller agitator. When mixing with a drill, first pour the water into the bucket, and then add the powder while mixing. Mix until you achieve a very liquid consistency. The mixing time should be at least 3 min. On mixing and application, check that the compound does not separate. To achieve optimal benefit from the expansion, blend only the amount of concrete that can be used within approx. 20 min at +20°C. Higher temperatures will shorten, and higher temperatures will lengthen both the processing and hardening times.
Marlon Element Concrete PF70 is pumped or poured in the concrete element’s locking joint, recess or corrugated pipes. When joining open vertical element joints, a tightly closing retainer is mounted along the length of the joint’s opening, and grouting is then done from above. If Marlon Element Concrete PF70 is used for grouting concrete elements or columns, a sealed casing is mounted around or along the item. The casing is mounted approx. 5 cm from the object, and with 3-5 cm excess height. The form’s excess height ensures that the grouting is filled.
The newly poured mortar surface must not be exposed to loads and must be protected as quickly as possible after pouring against rapid drying from draughts, high room temperature, sun rays, etc. Use of sealed plastic or a suitable curing membrane is recommended.
Depending on the nature of the surface, large variations in the surface can result in contraction cracks. Marlon Element Concrete PF70 should not be used at temperatures under +5°C or over +30°C. The product does not tolerate frost during the curing and cementation period.
Clean tools with water immediately after use. Hardened Element Concrete PF70 can only be removed mechanically.
Marlon Element Concrete PF70 is subject to internal inspection according to Marlon’s quality assurance system. Subsequent measuring and mixing at the site of application is not included in quality control.
Marlon Tørmørtel A/S
Cement-based, expanding liquid concrete.
14-15% of the dry powder weight. (3.5 l per 25 kg) v/c < 0.40.
Approx. 13 l per 25 kg.
Approx. 30 min., depending on temperature.
Approx. 5-60 mm. Guideline.
Approx. 2 kg dry powder product per m² per mm layer thickness.
Portland cement. CEM I 52.5 N (LA).
Oven-dried and sorted silica sand, cl. E.
Plasticiser, expanding and stabilising additives.
18 and 25 kg plastic sacks and big bags.
The storage life is min. 12 months in dry and suitable conditions in unopened packaging.
|Typical internal values cf. EN 196-1 / DS/EN 12190 (40 x 40/160 mm prisms)|
|Compressive strength, 1 day||> 25 MPa||DS/EN 12190|
|Compressive strength, 7 days||> 58 MPa||DS/EN 12190|
|Compressive strength, 28 days||> 75 MPa||DS/EN 12190|
|Bending tensile strength, 7 days||> 8 MPa||DS/EN 12190|
|Bending tensile strength, 28 days||> 10 MPa||DS/EN 12190|
|Air content||Ca. 1.5 %||DS/EN 1015-7|
|Consistency||> 200 mm||DS/EN 1015-3|
|pH value||Approx. 12.5 for fresh mortar|
|Chromate content||< 2 mg/kg cement|
|Pr no.||Application pending|
|Version||07.18 replaces 07.15|
|Compressive strength cf. Bulletin no.5|
|Performance acc. to DS/EN 206 DK NA:2020 & EN 206-1 Measured on 150 x 300 mm cylinders:|
|Element Concrete PF70|
|Compression strength, 28 days||fck > 65 MPa|
|Correction building site uncertainty||fck > 60 MPa|
|Marlon Tørmørtel A/S
Concrete repair product for construction repairs. CC mortar, based on hydraulic cement.
|Compressive strength||> 45 MPa|
|Adhesion||≥ 2.0 MPa|
|Chloride content||≤ 0,05 vægt %|
|Elastic modulus||≥ 20 GPa|
|Thermal compatibility||Part 1 ≥ 2.0 MPa|
|Capillary absorption||≤ 0.5 kg x m-2 x h-5|
|Hazardous substances||Compliant with section 5.4|