Product Data Sheet Show all documents
Ronafix®

Ronafix®

Polymer Admixture for Thin Section High Strength Waterproof Mortars and Fine Concretes

Ronafix® is a single part modified styrene butadiene liquid additive for cement mortars which enhances physical and chemical properties, allows mortars to be placed in thin section, provides waterproofing and resistance to frost and promotes adhesion to building surfaces. Mortars containing Ronafix® are used for a wide range of applications where thin high strength high performance mortars are required. Typical minimum application depth is 6 mm. Ronafix® is supplied as a single component white liquid. According to its specified use within mortars it is diluted with water and added to cement, sand (and aggregate) to provide the required performance characteristics. As a priming or bonding coat Ronafix® is used with cement only to provide adhesion between substrate and mortar.

  • Mortars can be applied in thin section
  • High compressive, tensile and flexural strengths
  • Monolithic adhesion to building substrates
  • Cured mortars are waterproof and resistant to freeze / thaw cycling
  • Mortars, toppings and renders are more resistant to mild chemical attack
  • Proven track record since 1969
  • Low VOC
Product Data Sheet Show all documents

Usage

  • Floor screeds
  • Concrete repair
  • Waterproof renders
  • Slurry coats / levelling and protective
  • Heavy duty floor toppings
  • Protection of steel reinforcement
  • Bedding and bonding mortars
  • Tanking and waterproofing
  • Spatterdash
 

Advantages

  • Mortars can be applied in thin section
  • High compressive, tensile and flexural strengths
  • Monolithic adhesion to building substrates
  • Cured mortars are waterproof and resistant to freeze / thaw cycling
  • Mortars, toppings and renders are more resistant to mild chemical attack
  • Proven track record since 1969
  • Low VOC

Packaging

5 litres drum, 30 litres drum or 220 litres drum

Colour

Milky white

Product Details

Product Information

Shelf life

9 months from the date of production

Storage conditions

Stored properly in undamaged and unopened original sealed packaging in the temperature range +5 oC to +30 oC. Protect from direct sunlight and frost.
Technical Information

Mortar mix design

Ronafix® Mix Designs

 

ApplicationRonafix® mixThickness/Notes
Floor screeds and screed repairsA6 mm–50 mm
Floor screeds and screed repairsA126 mm+

Floor toppings and

topping repairs

B126 mm+
Floating floor screedsF38 mm+
Concrete repairD-
Concrete repairA-
RendersEWatertight and tanking
RendersAWeatherproof
Bedding brick slips, copingsC6 mm–12 mm typical
Fine concretesG25 mm+ typical
Slurry coatsSC1 mm–3 mm typical

         

Ronafix® Mix DesignsCementSand

10 mm

Aggregate

Ronafix®/

Water

Mix A/m3

500 kg1250 kg

90 litres/

90 litres

By Volume121 : 1
Mix A1/m3500 kg1500 kg

45 litres/

140 litres

By Volume12.51 : 3
Mix B1/m3500 kg750 kg750 kg

45 litres/

140 litres

By Volume11.251.251 : 3

Mix C,D,E/m3

500 kg1250 kg

140 litres/

40 litres

By Volume123 : 1
Mix F/m3500 kg1500 kg

45 litres/

135 litres

By Volume12.51 : 3

Mix G/1.4m3

500 kg1000 kg1000 kg

45 litres/

140 litres

By Volume11.51.51 : 3

Slurry Coat

/m3

500 kg500 kg

350 litres

Ronafix®

By Volume11

Indicative performance of mortar mix

1.  Compression, Bond and Shear Bond Strength.

Maximum laboratory strengths are achieved by casting and curing cubes in ideal working conditions; site strengths will be lower.

  

Ronafix®

Mix Design

Mix A 

Mix A1
Age

compression stength /shear bond trength

compression strength / bond strength

7   days

50.5 N/mm² /9.3 N/mm²

38.6 N/mm² /  

28 days

52.5 N/mm² /18.1 N/mm²

44.9 N/mm² /3.4 N/mm²

 

2. Dynamic Modulus BS 1881 : Part 5 :1970

Electrodynamic Method

Days 

Ronafix® Mix ARonafix® / FerrocreteRonafix®/ ConcreteControl

1

25.0 KN/mm²

29.5 KN/mm²39.0 KN/mm²15 KN/mm²

7

24.8 KN/mm²

29.5 KN/mm²41.3 KN/mm²30 KN/mm²

28

24.8 KN/mm²

29.0 KN/mm²41.0 KN/mm²

40 KN/mm²


 

3. Heat Ageing. 
Heat ageing tests are employed to obtain data which has a bearing on long term performance. A general guide is that 1 week at 70 oC approximates to 5 years.

3:1 mortar + 9 litres Ronafix®/50 kg cement.

Control 3:1 mortar. Temp 70 oC

Days

Flexural Strength

Sample/Control

Tensile Strength

Sample/Control

2810.5/7.0 N/mm2

3.5/0.7 N/mm2

5615.5/4.9 N/mm23.0/0.0 N/mm2
11214.7/5.5 N/mm22.0/0.0 N/mm2
36414.1/5.4 N/mm22.3/0.0 N/mm2

   

4. Water Permeability 

3:1 mortar  Gauging liquid 5:4 Ronafìx/water, w/c ratio 0.32

TimeTop Surface

Laitence

Removed

Accepted Level
0–10 mins0.0070.0280.250
10–30 mins0.0030.0190.150
30–60 mins0.0000.000-

5. Water Vapour Permeability
Samples : 73 mm dia x 11 mm. 25 oC and RH 75 %

  

2:1 sand/cement

control

42.20 gm/m2/day-

3:1 sand/cement

control*

46.90 gm/m2/day-

3:1 sand/cement

p/c = 1:20

3.60 gm/m2/day92.3 % Reduction

3:1 sand/cement

p/c = 1:10

3.90 gm/m2/day91.7 % Reduction

3:1 sand/cement

p/c = 1:7

1.88 gm/m2/day96.0 % Reduction

    

6. Freeze/thaw cycling. 
 

3:1 mortar, p/c = 1:10. 24 hours -18 oC/+20 oC

Flexural Strength

Cycles

Sample 1Sample 2Control 1Control 2
010.8 N/mm211.6 N/mm27.2 N/mm²6.0 N/mm²
15--4.5 N/mm²3.2 N/mm²
3010.5 N/mm2-0.0 N/mm²0.0 N/mm²
60-11.0 N/mm2--
12010.9 N/mm210.5 N/mm2--

 

    

7. Thermal Coefficient of Linear Expansion
Prisms : 165 x 50 x 50 mm

     

Temperature Range

per oC x 10-6+20 oC to +60 oC-20 oC to +20 oC
Control12.812.7
Ronafix® sample12.912.8

  

8. Water Penetration

No water penetration for 3 days at 30 metre water head.

   

9. Water Immersion. BS 12 : 1971

Dumbell specimens. 3:1 sand/cement. p/c 1:10

DaysInitial28112168

Tensile

control

3.5

1.4

3.2

3.4

4.9*

3.9*

3.4

3.8

Adhesion

control

3.1

1.1

2.2

1.5

3.3*

2.5*

2.6

2.2

*tested dry N/mm2

10. Fire Resistance, 

Sample a : Glass Panawall (Insulite) Ronafix® Mix C Stability : 77 minutes

Sample b : 70 x 70 x 25 mm Ronafix® mortar panel. 3:1 sand/cement

p/c ratio 1:10. 60 minutes. 900 oC. Sample degraded 1–3 mm.

Sample c: 12 mm Ronafix/sand/cement render bonded with Weldmesh.

Maximum furnace temperature 1335 oC at 80 minutes.

    

11. Steam at 100 oC. 

Samples : 250 x 25 x 25 mm sand/cement. p/c 1:10

Steam jet played on surface for 1 hour. Flexural strength tested after 1 and 5 cycles. No loss or gain in strength.

    

12. Shrinkage 100 oC. 

Samples : 300 x 75 x 75 mm prisms

p/c ratio

(control)

w/c ratio

0.40

shrinkage %

0.07

1.180.340.02
1.130.340.01
1.90.300.01

     

Application

Application steps

MIXING

Ronafix® modified mortars can be mixed by hand or machine. Machine mixing will more easily provide a mortar with even dispersion of mix components and a lower water/cement ratio. The use of a forced action mixer (eg. Creteangle or Screedmaster) will provide optimum performance; free fall mixers cause the mortar to ball up with a resultant reduction in performance and must not be used. For optimum performance, dry mix the cement, sand (and aggregate). Damp the mix with a small quantity of water and then add the full amount of Ronafix®. Continue mixing, adding water up to the specified amount until the required workability has been achieved. Depending on the quality of mixer used and the moisture content of sands and aggregates it may not be necessary to add the full amount of water specified in the mix design. When using an efficient mixer, a mixing time of 2–3 minutes is normally sufficient. Do not overwork the mix as this will entrain air and may affect performance. Once mixed the mortar should be use as quickly as possible.

  

Curing Ronafix® Mortars

To minimise moisture loss and resultant crazing and cracking Ronafix® mortars must be properly cured, especially in conditions of strong drying winds, high temperature and direct sunlight. Mortars should be cured using either spray applied Monocure 50 (suitable for overcoating and painting) or tight fitting polythene. Curing should commence as soon as possible after finishing the mortar when to do so will not damage the surface and continue for 24–48 hours.

CLEANING OF EQUIPMENT

Clean all tools and application equipment with clean water immediately after use.

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