Description
KERGBETOON NAKS LC18
LIGHTWEIGHT CONCRETE NAKS LC18
FILLING AND LEVELLING CONCRETE
Compressive strength class LC16/18 EVS-EN 206 : 2014
FOR POURING LEVELLING LAYERS
FILLER CONCRETE FOR FLOORS
HARDENED CONCRETE HAS BETTER SOUND AND HEAT INSULATION PROPERTIES THAN ORDINARY CONCRETE
TO BE USED INDOORS ONLY.
COMPOSITION
Aerate glass granule (2-8 mm), quartz sand, Portland cement and additives enhancing treatment.
PREPARATIONS
Pour the required quantity of the dry mix in the mixing bowl or mixer.
Add water 20-22% of the mix weight. (3-3.3 litres per 15 kg bag).
Stir mechanically or manually until the mix is completely wet.
Once mixed, the mixture should be used within 2 hours after adding water.
TECHNICAL SPECIFICATION
Compressive strength class of hardened lightweight concrete LC16/18 pursuant to EVS-EN 206:2014.
A 15 kg bag makes approx. 14 litres of ready concrete. (0.014 m3)
Concrete hardening in ordinary conditions will achieve the following approximate compressive strength values:
24 hours 2 MPa
2 days 6 MPa
3 days 10 MPa
7 days 14 MPa
28 days over 18 MPa
NB! Lower temperatures slow the hardening process of concrete.
Dry mix density 0.75 kg/dm3
Specific weight of hardened lightweight concrete 1-1.1 kg/dm3 Density class D 1,2
Chloride class CL 1.0
Water vapour diffusion resistance factor μ 8 / 6 (dry / wet) Tabulated value of standard EVS-EN 12524-2006.
Specific heat conductivity λ 1.15 W/(m•K) Tabulated value of standard EVS-EN 12524-2006.
Working temperature +1 0C to +30 0C
RECOMMENDATIONS – WARNINGS
Recommended layer thickness 30 mm as a minimum.
If necessary, floor reinforcement should be used.
For finishing hardened concrete surfaces, use a self-levelling floor compound (PÕRANDANAKS or NOBENAKS).
For pouring a levelling layer on light concrete, we recommend using a primer NAKKEDISPERSIOON.
When working with lightweight concrete the temperature of the substrate and environment shall be in plus degrees. Avoid freezing of the newly poured concrete.
When drying fresh surfaces must be protected from rain and direct exposure of sunshine.
This product contains cement. Contact with water will cause an alkaline reaction. Can cause skin irritation. In the event of contact with eyes, rinse immediately with plenty of water. For more detailed information please refer to the Safety Data Sheet.
STORAGE
Store bagged mix powder in a dry room.
The storage time of mixed powder is 12 months.
