Expansible infilling thixotropic dry mortar for fixing anchoring elements, sealing penetrations and defects in concrete structures

Product Characteristics
Single-component expansive dry mortar mix containing expansive admixture. Meets the requirements of EN 1504-6 for anchoring and reinforcing concrete by steel reinforcing bars.

  • applied manually or mechanically
  • thixotropic – doesn’t flow down
  • permanently water resistant
  • perfect mechanical properties
  • perfectly fills up holes and cavities due to controlled expansion

SUPERFIX TH is a single-component expansible dry mortar mix on the Portland cement basis intended especially for filling up holes and cavities in concrete structures. SUPERFIX TH mortar ensures proper and permanent filling and monolithing of the concrete. It provides alkaline protection to anchoring elements. It is also practical for monolithing of joints in prefabricated reinforced concrete structures.

Physical and mechanical parameters

Requirements / results according to EN 1504-6

Testing method Requirements Results
Pull out (mm) EN 1881 <0.6 <0.3
Chloride Ion Content (%) EN 1015-17 <0.05 <0.02

Physical and mechanical parameters

Color Non-standard grey
Bulk density (kg/m3) 1530 ± 40
Tensile bending strength (MPa) 7 days > 7.5 > 8.5
28 days > 10.0 > 10.5
Compressive strength (MPa) 7 days > 45 > 55
28 days > 55 > 60
Expansion (volume change) % 1) after 28 days +0,6
1) at 20±5 °C and relative humidity of ambient air 50 – 75 %

Test certificates
The product is certified according to Act 22/1997 and Governmental Decree No. 312/2005 Coll. Continuous independent quality control is provided by accredited testing laboratory No. 095/2002, Horský s.r.o.
Supervision of the quality system, EMS and OHSAS is carried out by Notified Body No. 1020.

Instruction for preparation and application.
Base. Any dust and incoherent particles shall be removed from the base before application. The concrete surface cannot be contaminated by substances, which can negatively affect adhesion of the mortar to the base (oil or other products). Before application of the prepared mortar, humidification of the concrete surface shall be properly and repeatedly performed for at least 120 minutes.

Preparation of mortar. SUPERFIX TH is prepared by mixing necessary amount of dry mortar with measured amount of water. The recommended mixing ratio is specified in the following Table. Optimum quantity of batching water can fluctuate in the given interval as it is usual with mortars containing a cementing binder.

mortar grading (mm) recommended mixing ratio thickness of the grouting (mm)
dry component (kg) water (litres) min max
SUPERFIX TH f 0 ÷ 1 25 3.25 ÷ 3.75 5 35
SUPERFIX TH r 0 ÷ 4 25 3.20 ÷ 3.70 20 unlimited

Workability of the product is 50 – 60 minutes under 20 °C.
Neither temperature of base nor temperature of ambient air shall be below + 5 °C and above + 30 °C.

Mortar application. SUPERFIX TH mortar has especially good workability, it is highly non-slump and it has a perfect adhesion base. To ensure a perfect filling of the cavities, it is important to mix the mortar well and remove all the air non-homogeneities.

Applied mortar treatment Laid surfaces shall be properly treated immediately after completion. Use of the PE foil, moistened geotextile, etc. for coverage of laid areas or filled holes proved well.

Specific consumption
Specific consumption of dry mortar amounts to 1.8 ÷ 1.9 kg/dm3.

More info on the product page
SUPERFIX TH (ENG) (pdf, 0.2 MB)