Technical Specifications
.
.
.
I
n
ma
so
n
r
y
co
n
stru
cti
o
n
th
e
b
o
n
d
a
ctu
a
l
l
y
h
a
s
two
p
a
rts
.
.
.
f
l
e
x
u
r
a
l
b
o
n
d
stre
n
g
th
a
n
d
e
x
t
e
n
t
o
f
b
o
n
d
.
M
o
rt
a
rs
sh
o
u
l
d
h
a
v
e
su
ffi
ci
e
n
t
stre
n
g
th
t
o
ca
rr
y
th
e
l
o
a
d
s
i
mp
o
se
d
wi
th
re
g
a
rd
t
o
b
o
th
te
n
sile
s
tre
n
g
th
a
n
d co
mp
re
s
sive
stre
n
g
th
.
T
h
e
re
is
c
o
n
s
ide
r
a
ble
supp
o
rt
t
o
th
e
th
e
o
ry th
a
t
m
o
rt
a
rs sh
o
uld n
ev
e
r be
str
o
n
g
e
r th
a
n
th
e
ma
s
o
n
r
y
u
n
it.
With
h
i
g
h
e
r str
e
n
g
th
mo
rt
a
rs,
un
d
e
r ce
rt
a
in
co
n
ditio
n
s
,
t
h
e
unit
,
r
a
th
e
r
th
a
n
th
e
mo
rt
a
r,
is mo
re
like
ly
t
o
cr
a
ck
.
Mo
rt
a
r
wa
s
o
r
i
g
in
a
l
ly
c
on
c
eiv
ed
as
a
m
e
a
ns
of
b
ed
d
i
n
g
m
asonr
y
unit
s
a
nd
b
ond
ing
t
hem
t
o
g
eth
e
r
.
Mo
rt
a
r s
e
r
ve
s ma
so
n
ry in
th
e
co
mpa
ris
o
n
ca
pa
city o
f
a
g
a
sk
et o
r
wa
s
h
er s
o
t
h
a
t id
ea
lly s
o
me res
ilie
n
c
e is
n
ec
e
s
s
a
r
y to
"c
u
s
h
io
n
"
de
f
le
ctio
n
.
R
ig
idity
in
mo
rt
a
r is in
co
mpa
tible
wi
th
th
is
co
n
ce
pt.
Hig
h
lime
mo
r
t
a
r,
be
ca
us
e
o
f
t
h
e
de
g
re
e
o
f
wo
r
ka
bility a
n
d
h
ig
h
wa
te
r
re
ten
t
i
o
n
,
p
r
o
mo
tes
exc
ellen
t
a
d
h
es
io
n
a
n
d
exten
t o
f
b
o
n
d
wh
ich
pr
o
duc
e
wa
te
rtig
h
t wa
lls.
Co
nsi
de
rabl
e
re
s
e
ar
c
h
ha
s
be
e
n
co
m
pl
ete
d
on
bon
d
stre
n
g
ths.
I
t
has
prov
e
n
that
PC
L
mort
ars
hav
e
g
re
ate
r
bond
tha
n
o
the
r
e
qu
i
v
al
e
nt
mor
t
ars.
..
.
A
hi
g
h
l
i
me
c
o
nt
e
nt
M
i
ra
cl
e
M
or
t
a-
Lok
m
o
r
t
ar
wi
l
l
adj
us
t
i
tse
l
f
unde
r
st
ructure
and
ret
urn
t
o
normal
condi
ti
on
wi
thout
i
n
j
ur-
i
ng
t
h
e
bond.
Hi
g
h
ce
me
nt
mor
t
ar
s,
on
the
othe
r
hand,
t
e
nd
t
o
crac
k
unde
r
str
e
ss
b
e
cause
the
y
a
r
e
t
oo
br
i
ttl
e
.
Carmeuse's Miracle Morta-Lok is the clear choice
of professional contractors and architects alike.
Contractors can lay a course easily and quickly
with the high sand-carrying mortar. Architects
specify Miracle Morta-Lok because they can
count on its strength, bond and durability. All
are provided with a cost savings over ordinary
masonry cement.
... Miracle Morta-Lok lime contains a self-healing
element which can react to form an actual lime deposit, thus filling any
mortar cracks which may appear. This autogenous healing occurs in
mortars that contain Type "S" lime.
... In masonry cement both waterproofing and
plasticity agents are added. WIth high lime mortars these characteristics
are naturally present.
... Recent tests
indicate the higher the proportion of lime in mortar, the lower the
tendency toward efflorescence.
... High lime content Miracle Morta-Lok mortars are
easy to spread and provide well-filled joints. More bricks can be laid before
tooling and the need for retempering is practically eliminated.
Morta-Lok is designed to be mixed directly into the mixing box or machine. First, charge the mixer with 5 to 6 gallons of potable water. Second,
add one-third of the required amount of sand. Third, add the Miracle Morta-Lok and Portland cement and then add the remainder of sand. Add
potable water and mix until desired consistency is obtained.
$"
Mortar
Type
Water Retention ASTM
Min. Avg
Comp. Strength
ASTM
Proportions by Volume
Portland Cement Lime Sand
M
75 2500 1 1/4
Not more than
3 times the sum
volume of the
cement and
lime used.
S
75 1800 1 1/4 to 1/2
N
75 750 1 1/2 to 1-1/4
75 350 1 1-1/4 to 2-1/2
Note: Miracle Morta-Lok lime far exceeds ASTM specifications. It complies with ASTM C-207-93 Type S hydrated lime for masonry purposes.
MIRACLE MORTA-LOK FACTS AND DATA