Caltra produces special binders for the dry-mix building industry using advanced calcium aluminate technology. They supply products globally from their centrally located production site in the Netherlands, monitoring quality and adhering to international standards. Within construction, dry-mix building chemistry has grown rapidly due to demands for improved and consistent raw materials to optimize and develop new products. Caltra offers a wide range of calcium aluminate and calcium sulfoaluminate cements designed for applications like rapid setting, high early strength, shrinkage compensation, and more.

1. advanced calcium aluminate technology
designed for the Dry-Mix Industry

2. 3
CALTRA producer of special binders committed to serve the
world wide building chemistry industry.
From our strategically and conveniently located production site, right in the
center of Europe, The Netherlands, we distribute our wide range of products
globally. Caltra supplies “full service” to her world wide customer base, having
the flexibility to adept to individual requirements.
We monitor the quality of raw materials and finished products in our own
quality control and research center.
Working according to international industrial standards: ISO,EN,ASTM,EPD.

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MARKET
Within the construction industry over
the past decades dry-mix building
chemistry has grown rapidly.
Formulators of pre mixed dry mortars are
constantly searching for consistent raw
materials to optimize existing dry mixed
products and develop new ones.
More and more research is done on rapid
setting, high early strength and shrinkage
compensated cement and gypsum based
mortars. Increasing cost of labor, liability
and demand for rapid turn around of
construction pushes the market even
further.
Today improved mortars enhance;
more robust formulation
longer shelve life
quick setting
rapid drying
high early strength
no loss of strength in time
shrinkage reduction
stable color
no efflorescence

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Through sintering a cement type clinker is
produced.
After calcination this clinker is cooled and
milled on a ball mill to powder.
It is considered an “eco friendly cement “
The amount of limestone is lower
than that of Portlandcement ,
giving a reduction of CO2 emission.
The calcination temperature is
around 20% lower than of
Ordinary Portlandcement.
The nature of the cement clinker
permits easier grinding thus
requiring less energy.
Both at clinker preparation and at the
grinding stage industrial by-products can
be added without having a reduction of
the performance.
0
10
20
30
40
50
60
1 2 3 4 5
Ye' elimite - Ca4Al6O12SO4
CA - Mono Calcium Aluminate
CA2 - Grossite
C3A - Aluminate Cubic
Calcite - Calcium Carbonate
C2AS - Gehlenite
CaSO4 - Anhydrite
Calcium Sulpho Aluminate cements have
been commercially on the market now for
several decades.
The cement clinker consists of high purity bauxite ,
limestone and gypsum. Main phases formed are
C4A3Š and depending on the type CS.
ECO CEMENT

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Main phases formed : C4A3Š + CS
Belite
Is used as a binder replacing Portlandcement ,
or used as an addition to OPC.
It is considered a stable cement with fast setting,rapid drying
and high early strength.It allows working at low temperature.
Belicem couples fast setting with a high strength
development.The cement is stable in time and under normal
circumstances it continuous increases strength.
Because of high solubility it allows working at low temperatures.
Belicem is a “green cement” as the CO2 emission is lower than
of Portlandecement.
Also the calcining temperature and cost of grinding the clinker is
considerably lower than Portlandcement
CALUMEX
Main phases formed : C4A3Š+ CA
Ye’elimite
QUICK is an additive to Portlandcement.
Normaly used at a 25% replacement of Portlandcement to obtain
a cement binder with fast set,quick drying and a high early
strength coupled to compensation of shrinkage through positive
expansion.
It is stable in time - with increasing strength development.
QUICK further improves the resistance to sulfate attack and other
aggressive substances.
In using QUICK the alkalinity will be reduced making it suitable for
GRC usage.
The pH level remains sufficient high to protect steel rebar or
fibers.
CSA
CEMENT
®

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CALUMEX
Main phases formed : C4A3Š + CS
WHITE is a calcium sulpho aluminate cement
based on low iron bauxite and high purity limestone and gypsum.
It can be used as a fast setting binder or mixed with white
Portlandcement to control the setting.
This cement combines all features of CSA-cement like shrinkage
compensation, quick set and fast drying and increased early
strength (3 Hour strength can reach 10 Mpa.) combined with high
whiteness.
The cement has a lower pH than regular white cement.A low
porosity, increased density, reduced risk of efflorescence and ASR.
Coloring pigments can be added to obtain consistent coloring.
It has been designed as stable binder for making tile-grouts,
natural stone adhesives and mortars and fast setting renders.
In making durable GRC glass fibers are better protected because
of the reduced pH.
Sufficient alkali remains to protect possible steel rebar or fibers.
CALUMEX
Main phases formed : C4A3Š + CS + C4AF
CSA cement with higher content of iron is
designed to get a better sulphate resistant cement for instance for
marine application and industrial flooring.
It has an improved abrasive resistance compared to Portland and
regular CSA cements.
Larger pours at one time are possible and the reduced shrinkage
allows voids to be placed at twice the distance to normal.
The high initial strength allows quick re-installment.
CSA CEMENT

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Controlled fast setting cement
Is a formulated cement with a rapid set
and high early strength.
Depending in the usage clean sand and/
or gravel should be added and mixed
thoroughly.
When water is added to the mix it will
set in ~15 min. at 20 °C.Prevent water
to evaporate or suck in to the substrate
too quickly. As all hydraulic binders it
needs sufficient water to complete full
hydration.
Depending on the filler/cement ratio
after 4 hours a compressive strength of
More than 12 MPa is achieved.
Used mainly for fast setting screeds,
road repair work, fast set concrete ,
sewerage maintenance, marine work etc.
Shrinkage compensation
Depending on the cement used 8~10%
replacement of the OPC will lead to
positive expansion - sufficient to
compensate the shrinkage of
Portlandcement.
Further addition will surely lead to
expansion and possible disruption of the
mortar or concrete.
Therefore careful testing to establish the
optimum dosage needed is strongly
advised !!
Expanding agent
Is an expansive cement deriving its
expansion from hard burned CaO .
Free lime reacts with water and converts
to portlandite.
When free lime remains in the matrix it
will react at a later stage with water or
CO2 and forms CH and carbonate.
The volume of the hydration products
expands by a factor of 1.98 bigger than
the volume of the original CaO – thus
giving expansion
Careful testing to establish the optimum
dosage needed is strongly advised !!
completerange
®

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We distinguish three types;
Calight® 40 - Al2O3 content 40%
dark brown black color
Calight® 50 - Al2O3 content 50%
light grey ~ crème color
Calight® 70 - Al2O3 content 70%
white color
Main usage;
SLU
tile adhesives
tile grouts
repair mortars
floorscreeds
0
10
20
30
40
50
60
1 2 3 4 5
CA mono calcium aluminate
brownmillerite- ferrite
mayenite
pleochroite -Q phase C6FA4s
Gehlenite
Calcium Aluminate is a refractory
cement,resistant to high temperatures.
It is used as a straight binder or in combination
with Portandcement and calcium sulfate to
obtain a “ ternary binder system”®
CALIGHT

9. 10
C12A7
0
20
40
60
80
100
120
140
160
1
2
3
4
5
ettringite - C4A3S
mayenite - C12A7
gehlenite - C2AS
mono calcium aluminate - CA
Amorphous Calcium Aluminate is the most
effective accelerator to
Portlandcementcement.
It garantees a fast set and high early strength -
and stable continuous increase of strength in
time
High purity bauxite and limestone are fused to
obtain smelted clinker.
To prevent crystalline phases being formed the
clinker is cooled extreme rapidly.
High purity bauxite and limestone are
fused to obtain smelted clinker.
To prevent crystalline phases being
formed the clinker is cooled extreme
rapidly.
Clinker formed consists of green glassy
beads which are ground to a high surface
area.
The main phase of this cement is C12A7
which is the most reactive phase in
cement hydration.
At an addition of 10~20% by weight to
Ordinary Portlandcement an extreme fast
set and high early strength binder is
obtained.
Main usage;
wet shotcrete accelerator
waterplug
road repair
airfield repair
fast set tile adhesive
grouts
SLU

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Metakaoline is a high purity micronized aluminium silicate ,which after
flash calcination reacts with lime (by product of Portland cement) to
form additional cementious calcium silicate and calcium aluminate
phases.
This pozzolanic material when added in a Portland cement matrix mobs
up the excessive amount of free lime and converts it in additional
calcium silicate and calcium aluminate phases.
At a ~10% addition to Portland cement the mortar concrete shows an
improved resistance to acid and sulfate attack.
It further reduces the risk on alkali silica reaction (ASR) and formation
of efflorescence (color stability).
It can also be added to hydraulic and non-hydraulic lime to improve the
strength and control the setting.
Two different types ;
Metacal 2000 is slightly darker in color than Metacal 3000
Per 1000 gr. both types bind ~ 1100 to 1300 gr. Ca(OH)2
METACALL®

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Anhydrite Super and Calcast 400 are also used as principal
binder in self leveling screeds and leveling compounds.
CALCAST
ANHYDRITE SUPER
CaSO4 2H2O (=Gypsum) β-hemihydrate
calcined at ~97° C. α-hemihydrate
(larger grains)
≥ 120° C. - CaSO4- soluble anhydrite III
≥ 200°~300°C. β- CaSO4- insoluble anhydrite II
≥ 400° C. α- CaSO4- metastable phase II
≥ 600° C. α- CaSO4- slow reaction
≥ 1215° C. α- CaSO4- high temperature
anhydrite I
≥ 1450° C. Dissociation into CaO + SO3
m) β
αα
Ternary cement systems consist
by proportion of a mix of Portland
cement , Aluminate cement and calcium sulfate.
In a ternary cement system calcium sulfate contribute to the
formation of ettringite. This small crystal increases in volume
and binds a lot of excess water in the mix. This effect leads to
rapid drying and shrinkage compensation.
Different type of calcium sulfate are being used;
Anhydrite Super - an anhydrous calcium sulphate
CaSO4
Calcast 200 - β - hemihydrate - limited water demand
CaSO4 1/2H20
Calcast 400 - α - hemihydrate Alpha - low water
demand CaSO4 1/2H20
T ®

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In house quality control
By continuous monitoring both incoming raw materials as well
as daily production of our cements we guarantee a stable
quality and supply.Through XRF and XRD analysis we assure
the high quality our cements.
Furthermore additionally our cements are regularly examined
by external independend laboratories and universities.
In-house every batch is individually tested in compliance with
EN-197 before being released for dispatch. Since many years
we are rewarded ISO certificate.
Together with our clients we constantly investigate and develop new
applications and usage of our cements.
If required we are able to add organic -and/or in-organic additives
to our cements to further optimize and facilitate its usage.
Our technical support and development lead to new mortars or
improved existing ones.
We blend tailor made to clients’ specification.
Supplying “full service” to our customers is our aim.

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FLOOR LEVELER
Floor smoothing mortars are hand
applied or pumped and used to
level out the top floor layer.
They are either based on gypsum
or cement.
Portlandcement 29,48
Calumex Quick 8
Limestone filler 10
Silica sand 0,1-0,4 50
Polymer powder 2
Cellulose ether 0,02
Super plasticizer 0,2
Lithium carbonate 0,1
Tartaric acid 0,2
RAPID TILE ADHESIVE
Fast setting tile adhesives in
compliance with C2FT standard.
Rapid drying adhesives coupled
with high early strength and
compensation of the shrinkage.
Portlandcement 20
Calumex Quick 8
Limestone filler 5
Silica sand 0,1-0,4 62
Polymer powder 3,85
Cellulose ether 0,25
Sodium gluconate 0,8
Tartaric acid 0,1
TILE GROUTS
Tile grouts with low alkali content
guarantee sustainable jointing.
Increased density of the matrix
and reduced shrinkage prevents
water to penetrate the substrate.
Portlandcement 36
Calumex White 12
Limestone filler 43,2
Talcum 8
Pigment 0,5
Metacal 3000 5
Cellulose ether 0,1
Polymer powder 1,2
The above given information and recommendations are based upon our experience and are offered merely as indication.They do not guarantee certain properties and is based on our current state of
knowledge.It does not absolve the user of our products from making his own tests.CALTRA Nederland bv can never be held responsible for any damage arising from the usage of its products.
possibleuse

14. 15
SELF LEVELING FLOOR
SCREEDS
Pumpable floor screeds are based
on either a calcium sulfate
(anhydrite or hemi-hydrate) or on
csa cement.
Calcast 300 50
(alpha hemi-hydrate)
Fine gypsum 0,3
White Portlandcement 1,5
Silica sand 0,05-0,3 35
Limestone filler 10
Super plasticizer 0,45
Polymer powder 1,51
Retarder 0,04
De-foamer 0,2
WATERPLUG
Depending on Portlandcement
used at just 10% replacement
SC-A will give sufficient
acceleration to set within 2 min.
Portlandcement 30
SC-A 3
Silica sand 0,05-0,3 45
Limestone filler 21
Super plasticizer 0,2
NON SHRINK GROUTS
Non shrinking grouts are used
where high-strength, structural,
durable cement mortar is
required.Such as anchoring of
metal structural columns,
machine bases, anchor bolts etc.
Portlandcement 31
Calumex QX-P 4
Hydrated lime 2
Limestone filler 5
Sand 0,1-3,8 mm 57
Super plasticizer 0,4
Lithium carbonate 0,4
Citric acid 0,1
De-foamer 0,1
The above given information and recommendations are based upon our experience and are offered merely as indication.They do not guarantee certain properties and is based on our current state of
knowledge.It does not absolve the user of our products from making his own tests.CALTRA Nederland bv can never be held responsible for any damage arising from the usage of its products.
possibleuse

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SUPPLY
All our products are supplied from centrally
located factory and warehouses in
The Netherlands.Each delivery goes through our
QC, before being released for dispatch.
We pack in PE- bags , paper sacks and
big-bags to customer specification.
Bulk loads are loaded directly on site.
We manufacture and store bulk loads tailor
made. Modular shipment by ship , train
or truck.

16. Caltra Netherlands
Communicatieweg 21
P.O. Box 306
3640 AH Mijdrecht
The Netherlands
T: +31 (0)297 289 340
F: +31 (0)297 289 350
W: www.caltra.com
E: support@caltra.com