SikaTop® ES-108

• General building authority test certificate (P 2776/02-135), from the German Research Institute for Polymer Construction Materials.
• Listed certified materials and systems according to ZTV-ING, part 3, section 4.
• Exposure stress Class M3 test approvals for SikaTop ES-108.
• Independent system testing and approval as bedding mortars for anodes in “Cathodic protection" system installations.

9 months from date of production

Store SikaTop ES-108 in undamaged, unopened, original sealed packaging in cool and dry conditions. Keep away from damp.

ca. 2.37 kg/dm³

8 mm

• SikaTop® ES K&H-101 (Corrosion protection and bonding course)
• SikaTop® ES-108 (concrete repair)
• SikaTop® ES Additive-100 K / SikaTop® ES Additive-100 V (mixing liquid)

55.7 N/mm² after 28 days

10.0 N/mm² after 28 days

SikaTop® ES Additive-100K

                
SikaTop® ES Additive-100V in bulk
SikaTop® ES-108 can also be supplied by bulk tanker. Installation is by machine. Please contact Sika Technical Services for details.

20 - 100 mm per working process

Min. +5 °C / Max. +30 °C

Min. +5 °C / Max. +30 °C

The respective curing / hardening times are shown in the table below, and according to temperature:
A (Time to pedestrian and vehicle traffic)
B (Time to surface preparation by blast cleaning)
C (Time to pull-off strength tests; expected value = 1.5 N/mm²)
D (Time to application of surface protection systems)
E (Time to installation of mastic asphalt protective layer)

SikaTop® ES Additive-100K

The mortar must be mixed with a compulsory mixer. Gravity fall mixers and hand mixing are not suitable methods for these materials. Do not mix for more than 3 minutes. This limit must be precisely adhered to, otherwise foaming can start. The following steps are required to produce the ready-to-use mortar:

1. Stir the SikaTop® ES Additive-100K.
2. Make up the mixing liquid consisting of SikaTop® ES Additive-100K and clean water. Stir /mix to a homogenised liquid.
3. Pour this liquid into the mortar mixing container and add the SikaTop® ES dry mortar, stirring slowly and continuously. Check the mixing ratios are maintained.

SikaTop® ES Additive-100V (1000 kg)
SikaTop® ES-modified mortar consists of SikaTop® ES Additive-100V mixing liquid and the bulk supplied SikaTop® ES-108/108 dry mortars are mixed in the machine hopper. The GigaMix or similar machine is set up for mixing and application.

The exposed and prepared steel reinforcement must be given the anti-corrosion treatment layers before installing the replacement concrete. SikaTop ES K&H-101 is system tested according to German ZTV-ING standards. Before applying the PCC, repair / screed depth gauges should be adjusted and fixed to prevent them moving out of position when the mortar / concrete is placed and compacted.
To improve the adhesion of the modified cement mortar to the existing concrete substrate, always apply a bond coat.
The substrate must be pre-saturated (preferably submerged in water), preferably at least 24 hours before work starts. The surface must have then dried again until it appears slightly damp before applying the bond coat (SSD condition). Avoid ponding or standing water, as this would dilute the bond coat unacceptably.
The bond coat consists of SikaTop ES K&H-101 and water at the ratio of 4:1 in parts by weight. Maximum 3.75 litres of water are therefore required for each bag of SikaTop ES K&H-101 (15 kg bags).
The bond coat should have a soft consistency and be brushed well into the surface pores and profile of the substrate.

Important
Do not allow the bond coat to dry, apply the repair mortar / concrete ‘wet on wet’.
Embed the PCC mortar in the bond coat after pre-filling any larger holes / defects. Spread the mixed mortar evenly, overfill the areas and then draw-off / screed-off any excess with a beam and vibrator, then fully compact. Final floating and finishing of the surface should be carried out to produce a fine-grained, sandpaper-like texture. Never add any additional water, SikaTop ES Additive-100K or SikaTop ES Additive-100V to the mix or the surfaces and do not sprinkle them with cement or any other materials.
Maintain only the joints that must be brought through from the substructure; additional joints are unnecessary and could damage the integrity of the system. Sikaflex elastic joint sealants are available for finally sealing the joints at the surface when required.
SikaTop ES-104 and108 can be installed manually. The use of a beam vibrator is usually recommended for larger applications.

Prevent the freshly applied material from drying out too quickly, e.g. due to direct sunlight or wind; follow standard rules for the curing of cement based mortars. Freshly applied and hardened surfaces must be kept damp by covering with suitable hessian matting / plastic sheeting and / or mist spraying with water. ZTV-ING, Part 3, Section 4 shall apply for the curing period. Avoid cold water shock on the surface.
Alternatively, the newly finished surfaces can be impregnated with Sikafloor-150 after 3-10 hours. Detailed information on this option is given on our separate system data sheet "Fresh Concrete Impregnation For Trafficked Structures".

Clean all tools and application equipment with water immediately after use. Hardened / cured material can only be mechanically removed.