Teknoser 100 Quartz Aggregate Surface Hardener
Teknoser 100 Quartz Aggregate Surface Hardener
Product Description
It is a powder surface hardener composed of cement, hard quartz aggregate, chemical additives, special colorants
pigment and polymer additives applied to fresh concrete surfaces.
Areas of Use
• Indoors and outdoors,
• In parking lots, garages and ramps,
• In hangars and mechanical workshops,
• In underground passages, metro stations,
• In material warehouses, factories, fairgrounds, shopping malls with heavy human traffic,
industrial structures, gas stations, stations, aircraft hangars, etc. places,
• It is applied in places where abrasion resistance is required.
Features and Advantages
• It is used by sprinkling on fresh concrete by hand or machine.
• It provides resistance against dusting.
• It is more resistant to abrasion.
• It is more resistant to impacts.
• It increases the durability of concrete.
• It increases the impermeability of concrete.
Application Details
Surface Quality: It is very important for the ground to be prepared before applying TEKNOSER 100. Otherwise, cracks will occur in the concrete.
If the ground to be applied is soil; it should be compacted very well. For this, the ground
should be compressed with rollers, then wetted with waterers and passed over with a roller again.
Ground tests such as layer tests should be performed to check whether the surface hardener can be applied.
These processes should be repeated until the ground is well compacted. In order for the concrete not to lose its sap and to prevent cracks
from forming, greenhouse nylon is laid on the soil surface. If screed concrete is poured on the existing concrete and TEKNOSER 100 ground hardener
is to be applied, floating or monolithic screed application
should be selected according to project needs after the concrete surface is cleaned. The surface should be roughened with various methods where necessary and the cement grout should be removed.
The existing concrete surface should be saturated with water at least one day before the application begins and free water should be prevented from remaining on the surface. The application should be done on a saturated concrete surface. Before starting the application, a plan should be made according to the project, the slabs should be formed in a square shape, crack control joints should be determined and the screed should be poured according to these principles. If box profiles are to be used while forming the slabs, the mortar used for fixing should be removed while pouring the screed. In order for the edges of the screed concrete to come out smooth, the slab molds should be cleaned before each application and TEKNOIL mold release agent should be used. The slab molds used while pouring the screed concrete should be at the designed screed height. The molds to be used should have a tongue and groove structure,
will prevent the concrete under load from collapsing and separating from the cold joint sections. The steel reinforcement to be used according to the project should be placed in place using the cover slip. If the reinforcement is laid on the existing floor without using the cover slip, the reinforcement will not have any adhesion with the screed concrete, and the concrete will not be able to prevent tensile
stresses, causing the slab to crack under the load. If a single layer of reinforcement is to be used,
the reinforcement should be laid in the middle of the concrete thickness. The iron reinforcement should not extend beyond the slab boundaries.
If the iron reinforcement is to be solved with mesh steel, the mesh steels should be laid by overlapping each other.
Cold and crack control joints should be formed in order to control the shape and displacement changes that will occur in the reinforced concrete floor under load without creating cracks in the concrete. In order for the movements in these joints to occur only horizontally and in the desired direction, joint reinforcements should be removed from the slab where the reinforcement is laid and these reinforcements should be connected to the irons of the slab formed. Plastic pipes or hoses should be passed to the parts of the joint reinforcements that remain outside the slab and another slab should be formed and the concrete of the other slab should be poured in this way. This application will prevent vertical and longitudinal movements of cold joints during the movement of the slabs. In monolithic screed application, TEKNOBOND AD epoxy primer should be used to ensure the adhesion between the old and new concrete. Before TEKNOBOND AD cures
it is necessary to ensure that the surface is sufficiently sanded. If the old concrete moisture cannot be removed
TEKNOBOND 300 NB moisture barrier primer should be preferred. In floating screed applications, nylon
covers should be laid on the old concrete to prevent the screed concrete to be poured from adhering to the old concrete. With faulty projecting and application
cracks that may occur in the screed concrete under service loads will be reflected on the surface hardener.
The recommended screed concrete compressive strength should be at least C25 according to TS EN 206. The thickness of the screeds should be over 12 cm
and the water/cement ratio should be over 0.45.
Surface Preparation: A minimum
2 cm thick thermal insulation board is placed on the walls and curtain concrete areas around the floor where the surface hardener will be applied. Minimum 2 cm
thermal insulation boards are also applied around the columns in the middle, elevator curtains, and curtains. In this way, a gap is created that will allow the screed concrete to work.
This allows the screed to expand and contract freely without cracking. The gaps left after the application is completed
should be filled with TEKNOPOLIDERZ 1K or 2K.
When pouring concrete between the anodes, the concrete should be compacted using a vibrating jig. Before water comes out on the concrete surface, necessary corrections should be made using a control gauge and a wooden trowel. Water coming out on the concrete surface should be swept away with a long-handled wooden gauge.
TEKNOSER 100 should be sprinkled in a way that it will not separate when applied. The sprinkling process should be started after the concrete has hardened enough to leave a footprint of 0.5 - 1.5 cm deep when stepped on, depending on the environment and weather conditions. The material should not be poured on the concrete as a heap, it should be sprinkled as homogeneously as possible and leveled with a squeegee. If
If the material is poured on the ano surface in clumps and spread with a squeegee, where the first poured material remains thicker, the excess
material should be scraped off and cleaned from the surface. In the first stage, 2/3 of the total consumption should be sprinkled on the concrete surface and
spread with a squeegee or machine. The spread material should be waited for the concrete to absorb water and become moist (change color)
and the surface hardener should be integrated with the concrete by performing a sufficient amount of disk finishing (helicopter tray finishing). After this, the remaining 1/3 is sprinkled on the fresh concrete surface and finishing is done with a disk finishing
. The finishing process is continued until the desired surface quality is reached. While disc finishing
is being done, the surface material that has overflown onto the previously poured anode should be continuously cleaned with a spatula.
Otherwise, a difference in elevation between the two anodes and a bad joint appearance may occur. After the rough finishing, fine finishing
should be done. Fine finishing is the finishing done with a knife. Knife finishing should be done until the desired brightness is
obtained.
Curing Stage: After the finishing process is completed, TEKNOKÜR material should be used to protect the concrete surface.
TEKNOKÜR material increases the concrete strength value and slows down the water evaporation rate in the concrete, allowing the concrete to set with the existing water
amount. It prevents the formation of shrinkage cracks and surface dusting. Curing application must be done in summer and
winter.
After the concrete has hardened sufficiently, the joints of the slabs should be cut to a width of at least 4 mm and joints
should be created. The joints created are TEKNOPOLİDERZ It should be filled with 1K or 2K.
Application Notes / Limitations
• In order to get performance from the product, the finishing application time must be determined very well.
• Surface hardener application is done with timings that vary according to the quality and type of concrete to be applied, weather and environmental conditions. The application speed increases in hot weather, and decreases in cold weather. During application, attention should be paid to the setting stages of the concrete.
• The product may irritate the skin. Protective gloves or goggles should be used. Protective cream can also be applied to the hands before starting work.
In case of contact of mortar with eyes, eyes should be washed immediately with warm water and a doctor should be consulted.
• Application should be avoided in windy, extremely cold and hot weather.
• In cases where relative humidity falls below 40%, efflorescence may occur depending on the type of cement used in the concrete.
• Joint cutting should be done as soon as possible, the day after application. If cut after 3 days, concrete
will reach its strength, cutting will be difficult and concrete cracks will be seen on the surface.
• For TEKNOSER 100 application, concrete slabs, tray finishers, sprinkling and leveling equipment for special applications,
polyurethane mastic gun are required.
• Application time for surface hardeners is affected by every variable that affects the settling of the concrete and therefore
actually varies according to the prevailing conditions.
• In mechanical application with automatic sprayer and laser screed spreader, sprinkling process can be started immediately after concrete spreading to allow the surface hardener to get wet.
• Compression with trowel can be started when the weight of helicopter trowels is supported by the concrete.
• In manual application, surface hardener should not be more than 3-5 mm
• Periodic checking of the situation and concrete development allows the right decision to be made about the application stages and order.
• Surface hardener application should not be done in very windy or dry conditions.
• Since concretes in which a portion of the cement is replaced with fly ash are more sticky and have lower workability, they should not be used.
• Changes in concrete properties such as water and cement content may cause slight color differences.
• Surface hardeners may cause color differences depending on the natural variations of the applied concrete.
• In order to ensure color consistency and continuity, the floor placement process should be done as cleanly and protected from the environment as possible.
• Color differences are normal and expected during the drying process. Each process must ensure proper
TEKNOSER 100 application.
• Correct timing and finishing techniques are essential.