Membership Directory & Resource Guide - 2018 - 31

Type of
portland
Type of
cement
portland
Type
of
cement
portland
White I
cement
White I
Gray I

White
Gray II
Gray I

Chemical composition %
Chemical composition %

SiO2

Al2O3

Fe2O3

CaO

MgO

SO3

SiO2
22.5
SiO2
22.5
20.5
22.5
20.5

Al2O3
4.5
Al2O3
4.5
5.4
4.5
5.4

Fe2O3
0.4
Fe2O3
0.4
2.6
0.4
2.6

CaO
66.3
CaO
66.3
63.9
66.3
63.9

MgO
1.0
MgO
1.0
2.1
1.0
2.1

SO3
2.8
SO3
2.8
3.0
2.8
3.0

Chemical composition %

Loss on Na2O eq
ignition,
Loss on Na2O eq
%
ignition,
Loss
% on Na2O eq
ignition,
1.7
0.17
%

1.7
1.4
1.7
1.4

0.17
0.61
0.17
0.61

Blaine Color L
Potential compound
TECHNICAL
BULLETIN NO.
5, 2018 * pg 2 of 4

composition %
fineness, Value**
Blaine
Potential compound
M2/kg Color L
composition %
fineness, Value**
C3S
C2S
C3A
C4AF
2
Color L
Potential
compound
MBlaine
/kg
composition
C3S
C2S
C3A% C4AF fineness, Value**
60
19
11
1
464
M2/kg 93.5

C3S
60
54
60
54

C2S
19
18
19
18

C3A
11
10
11
10

C4AF
1
8
81

464
369
464
369

Table 1. Chemical and Compound Composition, Color Value, and Fineness of Cements

93.5
54.0
93.5
54.0

20.5
5.4Chemical
2.6combined
2.1Air-entraining
3.0
1.4 Color
54 and
18
10 of Cements
8
54.0
* Values represent
the
mean of
statistics.
cements
are0.61
not included.
Adapted
from Gebhardt,
Ronald
F.,369
Table 1.
and63.9
Compound
Composition,
Value,
Fineness
" Survey of North American Portland Cements: 1994," in Cement, Concrete, and Aggregates, Vol. 17, No. 2, ASTM, West Conshohocken,
* Values represent the mean of combined statistics. Air-entraining cements are not included. Adapted from Gebhardt, Ronald F.,
Pennsylvania,
1995, pages
TableDecember
1. Chemical
and 145-189.
Compound Composition, Color Value, and Fineness of Cements
" Survey of North American Portland Cements: 1994," in Cement, Concrete, and Aggregates, Vol. 17, No. 2, ASTM, West Conshohocken,
**Color
values
are
based
on
CIE
Lab
Lightness
(L*) Values
and are cements
typical ofare
tested
for Adapted
white andfrom
grayGebhardt,
cement. Ronald F.,
* Values
representDecember
the mean1995,
of combined
statistics.
Air-entraining
not values
included.
Pennsylvania,
pages 145-189.
" **Color
Survey values
of North
Cements: (L*)
1994,"
in Cement,
and Aggregates,
Vol. 17,
2, cement.
ASTM, West Conshohocken,
areAmerican
based onPortland
CIE Lab Lightness
Values
and are Concrete,
typical of tested
values for white
andNo.
gray
Pennsylvania, December 1995, pages 145-189.
**Color values are based on CIE Lab Lightness (L*) Values and are typical of tested values for white and gray cement.

White cements are very low in ferrite phases because they are made with raw ingredients having low iron content.
Whereas
the potential
composition
of C4AF
is typically
8%ingredients
or even higher
gray
White cements
are verycompound
low in ferrite
phases because
they
are madearound
with raw
havingforlow
ironcement,
content.it
is
only
1%
for
white
cement
(see
Table
1).
The
white
color
of
the
product
is
directly
attributable
to
the
low
ferriteit
Whereas the potential compound composition of C4AF is typically around 8% or even higher for gray cement,
and
manganese
content.
White
cements
very
low in(see
ferrite
phases
because
they are
made
with raw
ingredients
havingtolow
is only
1% for are
white
cement
Table
1). The
white color
of the
product
is directly
attributable
theiron
lowcontent.
ferrite
Whereas
the potential
compound composition of C4AF is typically around 8% or even higher for gray cement, it
and manganese
content.
is only 1% for white cement (see Table 1). The white color of the product is directly attributable to the low ferrite
and manganese content.

Figure 2

Technical Bulletins

Figure 2

Swimming Pool Plastering and Color
Figure
White
cement
is Plastering
typically specified
for pool plasters
to 2ensure clean, bright, consistent colors, including
Swimming
Pool
and Color
light
are brighter
andfor
more
because
the white
a neutral
color.
Whitepastels.
cementColors
is typically
specified
poolintense
plasters
to ensure
clean,cement
bright,provides
consistent
colors,base
including
By
combining
white
cement
with
pigments
and
colored
aggregates,
and
by
varying
surface
finishes,
light pastels.
Colors
are brighter
more intense because the white cement provides a neutral base color.
Swimming
Pool
Plastering
and and
Color
treatments,
and
textures,
decorative
finishes available
to customers
areand
greatly
expandedsurface
(see Figure 2).
By combining
cement
with pigments
and colored
aggregates,
byconsistent
varying
White
cement iswhite
typically
specified
for pool plasters
to ensure
clean, bright,
colors, finishes,
including
treatments,
and
textures,
decorative
finishes
available
to
customers
are
greatly
expanded
(see
Figure
2).
light
Colors concrete,
are brighter
and more
becausematerial
the white
cement dependent
provides aonneutral
base color.
The pastels.
color of plaster,
or mortar
of anyintense
cement-based
is primarily
the cementitious
By
white
cement
pigments
and colored
aggregates,
and be
byused)
varying
surface
portion
andconcrete,
any
supplementary
materialmaterial
"SCM"
might
ason
well
the finishes,
color of
Thecombining
color(cement
of plaster,
orwith
mortar
ofcementitious
any cement-based
isthat
primarily
dependent
theascementitious
treatments,
and and
textures,
decorative
finishes
to customers
are
greatly
expanded
2).
the
fine aggregate.
Anyone
seeking dynamic
coloravailable
or decorative
finishesthat
can
benefit
cement-based
products
portion
(cement
any supplementary
cementitious
material
"SCM"
might
befrom
used)
as well (see
as theFigure
color of
that
exclusively
use
white
cement.
White
cement
has
all
the
strength,
toughness
and
structural
characteristics
the color
fine aggregate.
Anyone
seeking
dynamic
color
or decorative
finishesiscan
benefitdependent
from cement-based
products
The
of plaster,but
concrete,
or mortar
of any
cement-based
material
primarily
onfortheitscementitious
of
gray
cement,
the
added
benefits,
as
listed
above,
are
the
principal
considerations
selection.
that exclusively
use any
white
cement. Whitecementitious
cement hasmaterial
all the strength,
toughness
structural
portion
(cement and
supplementary
"SCM" that
might beand
used)
as wellcharacteristics
as the color of
of
gray
cement,
but
the
added
benefits,
as
listed
above,
are
the
principal
considerations
for
its selection.
the fine aggregate. Anyone seeking dynamic color or decorative finishes can benefit from cement-based
products
that exclusively use white cement. White cement has all the strength, toughness and structural characteristics
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