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7/26/2019 4 - DPF Brochure
http://slidepdf.com/reader/full/4-dpf-brochure 1/19
Tel: (974) 4490 3836 Fax: (974) 4490 3835 P.O. Box: 50311, Doha, State of Qatar E-mail:[email protected], Web: www.dohaprecast.com
DPF Brochure
7/26/2019 4 - DPF Brochure
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Tel: (974) 4490 3836 Fax: (974) 4490 3835 P.O. Box: 50311, Doha, State of Qatar E-mail:[email protected], Web: www.dohaprecast.com
Material Data Sheet
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constructive solutionsNitomortar FC*
Uses
Nitomortar FC is designed for application to minor
imperfections in concrete surfaces. It is suitable for
application from a feather-edge to 3 mm, and can be used inthe following situations :
! Filling pinholes prior to overcoating with Nitocote*† or
Nitoflor*† products.
! General reprofiling over large areas, up to 3 mm depth.
! Sealing of surface cracks in preparation for crack injection.
!General purpose bedding mortar and adhesive
Advantages
! Cost effective - reduces usage of subsequent coatings
! High performance - excellent chemical resistance, strong
adhesion to concrete substrate
! User friendly - easy to apply and finish, manufactured to
meet local conditions
Description
Nitomortar FC is a two component thixotropic, solvent free,
compound based on epoxy resins, graded fillers and
thixotropic agents. It is applied directly to concrete substrates,
without primer, and cures to a surface ready for over coating.
The base component is light grey coloured and the hardener black to ease identification of uniform mixing.
Design criteria
Nitomortar FC is designed for filling pinholes and surface
irregularities in concrete prior to the application of subsequent
Properties
Solids by weight : 100% @ 25ºC
Compressive strength : 70 N/mm2 @ 7 days
Pot life : 1 hour 40 mins @ 25ºC1 hour @ 35ºC
Drying time : 10 hours @ 25ºC
4 hours @ 35ºC
Overcoating time : After 24 hour curing period
Colour : Grey
Chemical resistance : Resistant to oils, fats, petrol,
salt and sugar solution, bleach,
dilute mineral acids, alkalis andvarious solvents
Instructions for use
Preparation
Concrete surfaces should be clean, dry and free from laitance.
Sandblasting or mechanical wire brushing may be necessary.
Mixing
Care should be taken to ensure that Nitomortar FC is
thoroughly mixed to produce a fully homogeneous paste.
The hardener' and 'base' components should be stirred
thoroughly in order to disperse any settlement before mixing
them together. The entire contents of the 'hardener' should be
emptied into the 'base' container and the components mixed
together using a Fosroc mixing paddle attached to a slow-
speed (400/500rpm) heavy duty drill, until a uniform grey colour
and consistency is obtained. Mixing of 1kg packs can be
done by hand but care must be taken to ensure homogenus
mixing. Under no circumstances should part packs be used,
or part mixing be attempted.
High strength trowel grade, epoxy resin fairing coat,
repair mortar, bedding and adhesive
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Nitomortar FC*
Cleaning
Nitomortar FC should be removed from tools, equipment and
mixers with Fosroc Solvent 102*† immediately after use.
Hardened material can only be removed mechanically.
Estimating
Supply
Nitomortar FC : 1.0 and 4.0 litre packs
Fosroc Solvent 102 : 5 and 25 litre cans
Coverage and yield:
Coverage of Nitomortar FC is wholly dependant upon surface
conditions, site trials are therefore recommended to ascertain
actual usage on uneven substrates. As a guideline when
applied at 200 microns dft coverage is approximately 5m2/litre.
Storage
Shelf life
12 months if kept in unopened tins and stored in a dry place
away from direct sunlight.
Storage conditions
Store in dry conditions in the original, unopened containers.
If stored at high temperatures the shelf life may be reduced to
4 to 6 months.
Limitations
- Do not mix part packs under any circumstances.
- Nitomortar FC should not be exposed to moving water
during application.
- Exposure to heavy rainfall prior to final set may result in
surface scour.
Precautions
Health and safety
Nitomortar FC and Fosroc Solvent 102 should not come in
contact with skin or eyes, or be swallowed. Ensure adequate
ventilation and avoid inhalation of vapours. Some people are
sensitive to resins, hardeners and solvents. Wear suitableprotective clothing, gloves and eye/face protection.
If working in confined areas, suitable respiratory protective
equipment must be used. The use of barrier creams provides
additional skin protection. Should accidental skin contact
occur, remove immediately with a resin removing cream
followed by soap and water. Do not use solvent. In case of
contact with eye, rinse immediately with plenty of clean water
and seek medical advice. If swallowed seek medical
attention immediately - do not induce vomiting.
Fire
Nitomortar FC is non-flammable.
Fosroc Solvent 102 is flammable. Keep away from sources
of ignition. No smoking. In the event of fire extinguish with
CO2 or foam. Do not use a water jet.
Flash points
Fosroc Solvent 102 : 33ºC
For further information, refer to the product materials safety
data sheet.
Additional information
Fosroc manufactures a wide range of products specifically
designed for the repair and refurbishment of damaged
reinforced concrete. These include hand-placed and spray
grade repair mortars, fluid micro-concretes, chemical-
resistant epoxy mortars and a comprehensive package of
protective coatings.
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constructive solutionsNitobond SBR*
Polymer bonding aid and additive for mortars, screeds and
renders
Uses
For improving the physical properties of cementitious mixes.
Typical uses include, but are not limited to, the following :
! Bonding concrete repair mortars
! Floor toppings and screeds
! Waterproof renders and cementitious slurries
! Bonding agent for slip bricks, ceramic tiles, etc.
Advantages
! Single component liquid can be easily gauged as required
! Improves cohesion and workability
! Improves mortars to provide waterproof repairs, renders
and toppings which are highly resistant to freeze/thaw
cycling
! Improved tensile and flexural properties allow thin
applications
! Excellent bond to concrete, masonry, stonework, plaster and blockboard
! Contains no chloride admixtures
Specification
Polymer bonding aid and mortar additive
The polymer bonding aid and site-batched mortar shall be
modified by the use of Nitobond SBR, a single component
styrene butadiene rubber emulsion.
Description
Nitobond SBR is a modified styrene butadiene rubber
l i hi h i li d d hi li id I
Properties
The results listed below were achieved by assessing the
mechanical properties of a 3:1 sand:cement mortar containing
Nitobond SBR in the proportions 10 litres per 50 kg cementagainst a 3:1 sand:cement control mortar. The test methods
used were in full accordance with BS 6319 at 28 days - air
cured.
Test method Typical result Control
Compressive strength
(BS 6319, Pt 2) : 35 N/mm2 28 N/mm2
Tensile strength
(ASTM C-190) : 5.5 N/mm2 2.7 N/mm2
Flexural strength
(BS 6319, Pt 3) : 11.5 N/mm2 7.9 N/mm2
Slant shear bond
(BS 6319, Pt 4) : 18 N/mm2 2.6 N/mm2
Chemical resistance : Cementitious materials
have limited chemical
resistance. The addition of
Nitobond SBR to cement
mortars reduces
permeability and therefore
helps reduce the rate of
attack by aggressive
chemicals, acid gases and
water.
Design criteria
The application parameters for mortars modified by the use
of Nitobond SBR will differ depending on the actual mix design
used, but should always be subject to a minimum applied
thickness of 6 mm.
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Nitobond SBR*
Instructions for use
Preparation
Form the extremities of the application area to a depth of at
least 10 mm to avoid feather-edging and to provide a square
edge. Ensure a minimum depth of 6 mm is observed in the
remaining area, up to the previously formed edge.
Clean the surface and remove any dust, unsound or
contaminated material, plaster, oil, paint, grease, corrosion
deposits or algae. Oil and grease deposits should be removed
by steam cleaning, detergent scrubbing or the use of a
proprietary degreaser.
Where breaking out is not required, roughen the surface and
remove any laitance by light scabbling or grit-blasting. Theeffectiveness of decontamination should then be assessed
by a pull-off test.
Substrate priming
The substrate should be thoroughly soaked with clean water
and any excess removed prior to commencement. A slurry
primer should be prepared consisting of 1 volume Nitobond
SBR to 1 volume clean water to 3 volumes fresh cement. Toobtain a smooth consistency, the cement should be blended
slowly into the premixed liquids. The slurry primer should be
stirred frequently during use to offset settlement.
The slurry primer should be scrubbed well into the surface of
the substrate, being careful to avoid ‘ponding’. The repair
mortar, topping or render must be applied on to the wet slurry
primer. If the slurry primer dries before application of the mortar,
it must be removed and the area reprimed before continuing.
Preparation of reinforcement (repairs only)
Expose fully any corroded steel in the repair area and remove
all loose scale and corrosion deposits. Steel should be
cleaned to a bright condition paying particular attention to the
Mix designs
A wide range of mix designs is achievable using Nitobond
SBR. For typical designs, please refer to Mix Design Sheet
FOS/SBR/05/02.
Mixing
Care should be taken to ensure that Nitobond SBR mortars
are thoroughly mixed. A forced-action mixer is essential for
large volume applications. Mixing in a suitably sized drum
using an approved spiral paddle in a slow speed (400/500
rpm) heavy-duty drill is acceptable for minor areas.
Weigh the cement, sand and, where required, aggregate into
the mixer and dry blend together for one minute. With the
machine in operation, add the pre-mixed Nitobond SBR andclean water. Continue mixing for 3 minutes to ensure complete
dispersal into the sand and cement.
Make any small adjustment to the quantity of clean water but
do not significantly exceed the literage shown above, additional
water should be kept to a minimum.
Continue mixing up to a maximum of 5 minutes until a smooth
and fully homogeneous consistency is achieved with therequired workability and application properties. It is critical
that allowance is made for the moisture content of the sand
and aggregate, particularly where stored on site.
Application
For application to all surfaces, Nitobond SBR mortars,
toppings and renders must be well-compacted on to the
primed substrate by trowel. It is frequently beneficial to work a
thin layer of the mortar into the slurry primer and then build the
mortar on to this layer. Exposed steel reinforcement should
be completely encapsulated by the mortar.
Nitobond SBR mortars can be applied at a minimum thickness
of 6 mm and up to 40 mm thickness, dependent on the location
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Nitobond SBR*
Finishing
Nitobond SBR mortars can be finished with a steel, plastic or
wood float, or by a damp sponge technique, to achieve the
desired surface texture. The completed surface should not be
overworked.
Low temperature working
In cold conditions down to 5oC, the use of warm water (up to
30oC) is advisable to accelerate strength development. Normal
precautions for winter working with cementitious materials
should then be adopted.
High temperature working
At ambient temperatures above 35oC, the material should be
stored in the shade and cool water used for mixing.
Curing
Nitobond SBR mortars, toppings and renders are cement-
based. In common with all cementitious materials, they must
be cured immediately after finishing in accordance with good
concrete practice.
The use of Nitobond AR or Concure RB90, sprayed on to thesurface of the finished mortar in a continuous film, is
recommended. In harsh drying conditions, supplementary
curing with polythene sheeting must be used.
Overcoating with protective decorative finishes
Nitobond SBR mortar repairs are extremely durable and will
provide excellent protection to the embedded steel reinforcement
within the repaired locations.
The surrounding parts of the structure will generally benefit
from the application of a barrier/decorative coating to limit the
advance of chlorides and carbon dioxide, thus bringing them
up to the same protective standard as the repair itself.
F d th f th D k d f t ti
Cleaning
Nitobond SBR and Nitobond AR should be removed from tools,
equipment and mixers with clean water immediately after use.
Cured material can only be removed mechanically.
Equipment used with Nitoprime Zincrich and Concure RB90
should be cleaned using Fosroc Solvent 102.
Limitations
- Nitobond SBR mortars, toppings and renders should not
be applied when the temperature is below 5oC and falling.
- Nitobond SBR mortars should not be exposed to moving
water during application. Exposure to heavy rainfall prior
to the final set may result in surface scour.
- If any doubts arise concerning temperature or substrate
conditions, consult the local Fosroc office.
Technical support
Fosroc offers a comprehensive technical support service to
specifiers, end users and contractors. It is also able to offer
on-site technical assistance, an AutoCAD facility and dedicatedspecification assistance in locations all over the world.
Estimating
Supply
Nitobond SBR : 25 and 200 litre drums
Nitoprime Zincrich : 1 litre cans
Nitobond AR : 1 & 5 litre cans
Concure RB90 : 25 and 200 litre drums
Fosroc Solvent 102 : 5 litre cans
Coverage
Nitobond SBR : Refer to mix designs
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Nitobond SBR*
Storage
Shelf life
All products have a shelf life of 6 months if kept in a dry store in
the original, unopened bags or packs.
Storage conditions
Store in dry conditions in the original packs. If stored at high
temperatures and/or high humidity conditions the shelf life
may be reduced. Nitobond SBR and Nitobond AR should be
protected from frost.
Precautions
Health and safety
Cementitious mortars and slurries modified with Nitobond SBR
contain cement powders which, when mixed or become damp,
release alkalis which can be harmful to the skin. During use,
avoid inhalation of dust and contact with skin and eyes. Wear
suitable protective clothing, gloves, eye protection and
respiratory protective equipment. The use of barrier creams
provide additional skin protection. In case of contact with skin,
rinse with plenty of clean water, then cleanse with soap and
water. In case of contact with eyes, rinse immediately with
plenty of clean water and seek medical advice. If swallowed,
seek medical attention immediately - do not induce vomiting.
Nitoprime Zincrich, Nitobond products, Concure RB90 and
Fosroc Solvent 102 should not come in contact with the skin
and eyes, or be swallowed. Ensure adequate ventilation and
avoid inhalation of vapours. Some people are sensitive to
resins, hardeners and solvents. Wear suitable protectiveclothing, gloves and eye protection. If working in confined areas,
suitable respiratory protective equipment must be used. The
use of barrier creams provide additional skin protection.
In case of skin contact with Nitoprime Zincrich and Concure
RB90, remove immediately with resin removing cream
followed by washing with soap and water. Do not use solvent.
In case of contact with eyes, rinse immediately with plenty of
clean water and seek medical advice. If swallowed, seek
medical attention immediately - do not induce vomiting.
Fire
Nitobond SBR and Nitobond AR are non-flammable.
Nitoprime Zincrich, and Fosroc Solvent 102 are flammable.
Keep away from sources of ignition. No smoking. In the event
of fire, extinguish with CO2 or foam. Do not use a water jet.
Flash points
Nitoprime Zincrich : 16o
CFosroc Solvent 102 : 33oC
For further information, refer to the Product Material Safety
Data Sheet.
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constructive solutionsNitocote ET402*
Coal tar extended epoxy resin coating
Uses
Provides chemical and abrasion resistance to prevent
corrosion of concrete surfaces for applications such as :
! Seawater tanks, channels and intakes.
! Manhole linings.
! Sewage works and effluent plants.
! Chemical processing.
! Foundation waterproofing.
!
Jetties, piers and docks.
Advantages
! Low cost service life - excellent chemical and abrasion
resistance, does not support bacterial growth.
! Cost saving - primerless system.
! Added value system - acts as an impermeable waterproof
coating.
! Versatile usage - can be applied to green concrete by
brush, roller or spray.
Description
Nitocote ET402 is based on solvent-free epoxy resins,
modified with coal tar. It is supplied as a two pack material in
pre-weighed quantities ready for on-site mixing and use.
Nitocote ET402 is applied as a two coat application. It is
generally applied at a wet film thickness of 200 micron per
coat, but can be applied at greater thicknesses to suit
exposure conditions.
Properties
Colour : Black/Brown
Solids by weight : 100%
Pot life :at 25°C 75 minutes
at 40°C 40 minutes
Tack free time : 4 to 5 hours @ 23°C
Overcoating time : 6 hours at 35°C
3 hours at 45°C
Full cure : 4 days at 35°C
Curing Efficiency : 93%
(BS 7542)Water Absorption : <0.01%
(ASTM D570)
Bond Strength : Min 1N/mm²
(BS 1881 Pt 207)
Water Permeability : Nil 100% reduction in
(DIN 1048 P5) coated specimens.
Sea water immersion
resistance : Resistant
Chemical resistance :
Tests were carried out in accordance with ASTM D1308. Test
was conducted at room temperature of 23°C and specimens
were soaked in the solution for a period of 7 days.
Acids (m/v)*
Hydrochloric acid 18% : ExcellentSulphuric acid 25% : Very good
Nitric acid 10% : Very good
Phosphoric acid 10% : Very good
Alkalis (m/v)*
Ammonia 15% : Excellent
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Nitocote ET402*
Instructions for use
Preparation
All surfaces to be treated with Nitocote ET402 must be clean
and free from dust or loose material.
Concrete surfaces
All laitance must be removed by grit blasting, or other suitable
removal methods. The general standard of surface preparation
should be in accordance with ACI 503R-89, Chapter 5,
Paragraph 5.4.
Following the preparation of a concrete surface, care should
be taken to ensure that any surface irregularities are filled with
Nitomortar FC*† or Nitomortar FC(B)*†.
Metal surfaces
Any metal surfaces should be grit blasted to a bright finish,
meeting the requirements of Swedish Standard SA 2½ or equal.
Priming
Concrete surfaces
Priming is not required on properly prepared concrete surfaces
- see Preparation section.
Metal surfaces
Al l meta l surfaces should be coated immediately af ter
preparation. If this is not possible and to eliminate formation
of rust, prime the metal surfaces using Nitoprime 25*.
Mixing
The contents of the resin can should be thoroughly stirred to
disperse any possible settlement.
The entire contents of both the hardener and resin cans should
be poured into a suitable sized mixing vessel.
It i d d th t th t t i d t th
Application
A minimum 2 coat application is generally recommended to
ensure a full, unbroken coating is achieved.
Brush application
Once mixed, the material should be immediately applied,
ensuring that a continuous coating is obtained. The first coat
is applied to achieve a uniform coating with a wet film thickness
not less than 200 microns, and should be allowed to dry for at
least 6 hours at 35°C before the application of the second
coat.
The second coat should be applied between 6 hours and 4
days (at 35°C) after the application of the first coat, at 45°C
this will be reduced to 3 hours. The second coat should be
applied as above again achieving a wet film thickness not
less than 200 microns.
Spray application
Where large areas are to be coated, it is advisable to consider
spray application. Consult the local Fosroc office for further
details and recommendations.
Cleaning
Tools and equipment should be cleaned with Fosroc Solvent
102* immediately after use.
Hot weather working practices
Whilst the performance properties of Nitocote ET402 at
elevated temperatures are assured, application under such
conditions can sometimes be difficult. It is therefore suggested
that, for temperatures above 35°C, the following guidelines
are adopted as a prudent working regime:
(i) Store unmixed materials in a cool (preferably temperature
controlled) environment, avoiding exposure to direct
sunlight.
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Nitocote ET402*
Repairing and overcoating
Any applications of Nitocote ET402 which have become
damaged can be readily overcoated.
The existing surface should well abraded, using a stiff wire
brush, or similar, to ensure that a good mechanical bond will
be achieved between the two layers.
Overcoating works can then proceed as for new work, always
ensuring that the prepared substrate is free from any moisture.
Limitations
- Nitocote ET402 should not be applied over other existing
coatings, but can be applied on top of itself (see above).
- For cold weather working (down to 5°C), it is recommendedthat materials are stored in a heated building and only
removed immediately before use. Accelerated heating
methods are not to be utilised under any circumstances.
- In contact with moisture/high humidity during cure, the colour
of the coatings will change to brown/red.
Technical support
Fosroc offers a comprehensive technical support service to
specifiers, end users and contractors. It is also able to offer on-
site technical assistance, an AutoCAD facility and dedicated
specification assistance in locations all over the world.
Estimating
Supply
Nitocote ET402 : 10 litre packs
Nitoprime 25 : 1 and 4 litre packs
Fosroc Solvent 102 : 5 litre packs
Coverage
Ni ET402 0 2/li @ 200 i f
Storage
Nitocote ET402 has a shelf life of 12 months, when stored in
warehouse conditions below 35°C.
Precautions
Health and safety
Nitocote ET402, Nitoprime 25 and Fosroc Solvent 102 should
not come in contact with skin or eyes, nor should they be
swallowed. Avoid inhalation of vapours and ensure adequate
ventilation.
Some people are sensitive to resins, hardeners and solvents.
Wear suitable protective clothing, gloves and eye/face
protection. Barrier creams such as Kerodex Antisolvent or
Rozalex Antipaint provide additional skin protection.
Should accidental skin contact occur, remove immediately with
a resin removing cream such as Kerocleanse Standard Grade
Skin Cleanser or Rozaklens Industrial Skin Cleanser, followed
by washing with soap and water - do not use solvent.
In case of contact with eyes, rinse immediately with plenty of
water and seek medical advice.
If swallowed seek medical attention immediately - do not
induce vomiting.
For further information, please consult the Material Safety Data
Sheet for Nitocote ET402.
Fire
Nitocote ET402 and Nitomortar FC are non-flammable.
Nitoprime 25 and Fosroc Solvent 102 are flammable. Do not
use near a naked flame.
Flash points
Nitoprime 25 : 55°C
F S l t 102 33°C
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Nitocote ET402*
Additional Information
Fosroc manufactures a wide range of complementary
products which include :
! waterproofing membranes & waterstops
! joint sealants & filler boards
! cementitious & epoxy grouts
! specialised flooring materials
Fosroc additionally offers a comprehensive package of
products specifically designed for the repair and
refurbishment of damaged concrete. Fosroc’s ‘Systematic
Approach’ to concrete repair features the following :
! hand-placed repair mortars
! spray grade repair mortars
! fluid micro-concretes
! chemically resistant epoxy mortars
! anti-carbonation/anti-chloride protective coatings
! chemical and abrasion resistant coatings
For further information on any of the above, please consult
your local Fosroc office - as below.
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Mix Design
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Drawing
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