Product Data Sheet Safety Data Sheet Show all documents

Sika MonoTop®-615

R3, One-Component, Cementitious, DWI Approved, High Build Concrete Repair Mortar

Sika MonoTop®-615 is a one-component, cement based, polymer modified, high build repair and reprofiling mortar, meeting the requirements of Class R3 of EN 1504-3.

Pre-bagged for consistency and quality.
Easy to use.
Just add water.
Sprayable by the wet spray method.
Contains no chloride admixtures.
High build.
Low wastage.
DWI approved.
A1 fire rating.

Product Data Sheet Safety Data Sheet Show all documents

Usage

For repairing all types of structures.
Horizontal, vertical and overhead repairs.
Hand applied repairs.
Repairs requiring mechanical (spray) application.
For exterior and interior use.
For all Class R1, R2 and R3 repairs.

Advantages

Pre-bagged for consistency and quality.
Easy to use.
Just add water.
Sprayable by the wet spray method.
Contains no chloride admixtures.
High build.
Low wastage.
DWI approved.
A1 fire rating.

Packaging

25 kg bag

Colour

Grey powder

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Conforms to the requirements of EN 1504-3 R3 Classification.

Approved product for use in public water supply in the United Kingdom in accordance with Reg 31:- DWI 56/4/834.

Product Information

Chemical Base

Portland cement, polymer redispersable powder, selected aggregates and additives.

Shelf Life

9 months

Storage Conditions

Store properly in undamaged original sealed packaging, in dry cool conditions.

Maximum Grain Size

Dmax: 1.5 mm

Density

Fresh mortar density ~ 1.65 kg/l

Soluble Chloride Ion Content

Result	Requirement
< 0.009%	< 0.05%

System information

System Structure

Sika MonoTop®-615 is part of the range of Sika® mortars complying with the relevant part of European Standard EN 1504 and comprising of:

Bonding Primer:
Sika MonoTop®-610 / Sika MonoTop®-1010

Reinforcement Corrosion Protection:

Sika MonoTop®-610/Sika MonoTop®-1010 for carbonated concrete

SikaTop® Armatec® 110 EpoCem® for chloride contaminated concrete

Repair Mortar:
Sika MonoTop®-615

Smoothing Coat / Levelling Mortar / Pore Filler:
Sika MonoTop®-620 / Sika MonoTop®-3020

Anti-Carbonation Concrete Protective Coating:

All Sikagard® Anti- Carbonation Protective Coatings

Ancillary Products

Corrosion Management:
Sika® FerroGard®-903+ Liquid Corrosion Inhibitor
Sika® Margel VPI 580 Capsule Corrosion Inhibitor
Sika® Galvashield® Galvanic Anodes
Sika® Ebonex® Cathodic Protection Anodes

Technical Information

Compressive Strength

Class R3	Requirement	>25 N/mm²
1 day	7 days	28 days
~11.5 N/mm²	~30 N/mm²	~35 N/mm²

Modulus of Elasticity in Compression

Result	Requirement
~ 16.0 kN/mm²	> 15 kN/mm²

Flexural Strength

28 days ~ 7.0 N/mm² (EN 12190)

Tensile adhesion strength

Result	Requirement
~ 2.0 N/mm²	> 1.5 N/mm²

Restrained Shrinkage / Expansion

Result	Requirement
~ 2.5 N/mm²	> 1.5 N/mm²

Capillary Absorption

Result	Requirement
0.11 kg.m^-2.h-^0.5	< 0.5 kg.m^-2.h-^0.5

Carbonation Resistance

Not required if coated

Reaction to Fire

Euroclass A1 (EN 1504-3 cl 5.5)

Application

Application Information

Mixing Ratio

Wet Spray Application : ~ 2.5 to 3.5 L of water for 25 kg powder
Hand Application: ~ 2.5 to 2.7 L of water for 25 kg powder

Layer Thickness

3 mm min. / 50 mm max. (30 mm overhead)

Ambient Air Temperature

+5°C min. / +30°C max.

Substrate Temperature

+5°C min. / +30°C max.

Pot Life

~ 30 - 50 minutes (at +23°C)

Consumption

This depends on the substrate roughness and thickness of layer applied. As a guide, ~ 1.65 kg/m²/mm.

Application steps

MIXING

Sika MonoTop®-615 can be mixed with a low speed (<500 rpm) hand drill mixer, or for larger volumes (i.e. 2 to 3 bags, or more, at once) the use of a forced action mixer is recommended. The amount that can be mixed at a time is dependent on the type and size of mixer.

For small quantities, Sika MonoTop®-615 can also be manually mixed. Pour the minimum recommended water into a suitable mixing container. While stirring slowly, add the powder to the water and mix thoroughly for at least for 3 minutes, adding additional water if necessary to adjust to the required consistency, up to the maximum specified amount.

APPLICATION

Reinforcement Corrosion Protection Coating:
Where a reinforcement coating is required, the application of a repair mortar shall be applied wet-on-dry onto the reinforcement corrosion protection.
Refer to the System Information above for compatible Sika products and refer to the relevant Product Data Sheet for more detailed information about the reinforcement corrosion product.

Bonding Primer:
On a well prepared and roughened substrate, a bonding primer is generally not required for this product.
When a bonding primer is required, refer to the System Information above for compatible Sika products and refer to the relevant Product Data Sheet for instructions.
A small amount of Sika MonoTop®-615 can also be mixed slightly wetter than normal and used as a scratch coat to fill any deep cavities or pits in the base of the substrate.
Any bonding primer shall be applied on a pre-wetted substrate, and subsequent application of the scratch coat /repair mortar shall be applied wet-on-wet onto the bonding primer.

Repair Mortar Application:
Sika MonoTop®-615 can be applied either manually using traditional techniques or mechanically using wet spray equipment.
Thoroughly pre-wet the prepared substrate a recommended 2 hours before application. Keep the surface wet and do not allow to dry.
Before application remove excess water e.g. with a clean sponge. The surface shall have a dark matt appearance without glistening,
and surface pores and pits shall not contain water. When manually applying, first make a scratch coat by firmly scraping the repair mortar
over the base of the substrate surface to form a thin layer and fill any deep cavities. Ensure the whole surface to be repaired is covered by the scratch coat.
For vertical applications, build up layers from bottom to top by pressing mortar well into the repair area.
The surface can be finished according to the surface texture requirements using a float. Do not over-trowel as this may lead to surface cracking.

Finishing:
Finishing should be carried out to the required surface texture as soon as the mortar has started to stiffen.

CURING TREATMENT

Protect the fresh mortar immediately from premature drying for a minimum of 3 days using an appropriate curing method e.g. curing compound, moist geotextile membrane, polythene sheet, etc.

Curing compounds shall not be used when they could adversely affect subsequently applied products and systems.

Reference shall also be made to BS EN1504-10 for specific requirements.