JKEARNEY
NOTES
SBM 321
,Thema
#
:
Material Properties :
practical Gap
↳ AIL
Prism { section }
Concrete
-
Mortar 3
Potable water :
y Exothermic
process
}Hydrat
=
Water :
a' Efggisielimgansand
'
Water :(
→ Fine sand
) Lk .75mm
-
{
225g Siemens
-
Lxifo :
Aggregate : X
Coats:( Gravel) > 4.75mm
13.2
19.0mm
\ ↳ Non -
reacting 26.0mm
calciumchlori.de
↳ sets the Natural Manufactured
concrete fast Could contain ↳
Crushed material
day
↳
.
causes the Spherical shape Angular shape
↳ ↳ ↳
reinforcement High workability how
workability} Due
↳ ↳
.
to rust Low
High strength interlocking
↳ ↳
.
strength to .
Seawater *
Exothermicreact.io#yMaxtemp.dependson:-
at
Stronger 1) water content
↳
• - -
↳
earlyfor
Bad
age .
- * -
2) Contents
3) Volume
reinforcement a)
.
Aggregate Type
Note
for 1%
of air every we lose
↳AggregateTyp
Of ( in the mortar)
5- 6%
Light weight will be hotter
*
heatothydrationi.e.ysoimkapboittynt.u.wat.ee/cemen-
strength will have lower
Heavy weight
* a
ratio :
¥
I
in ,
WIC
@
50 -60%
85%
Ultimate
strength @
7-
days .
strength
80 28
Ultimate
days
-
.
,6- 16% { Cement → 150 -
600kg 1ms
12 -
20% { Water →
110
-
250
kg 1ms
{ fine 1600
2000kg 1ms
20 -30%
aggregate
→
-
.
40
-
45% { coarse aggregate →
tgpicalconcretedersityo
2450kg
1ms
→
2200 -
, Fai .FI?grgtueEement
water
✓
.
,
(
8878258 water hydration)
Concrete ✓ → Binds ( non
reacting ) aggregate .
Binder :
*Additionshoconcre.tl#
Cement 1) Additions Fine
powder
+
→
substitute cement
Addition ( s )
2) →
Admixtures Alte:
→ -
or
improve
chemicals .
Aggregates * Other terms :
-
are 70 80%
I -
of total t D Grout :→ Cement + water
2) Mortar : → Cement + water + sand
↳ Brickwork .
Massp
Concrete :
Range
36-16%150
-3600kg 1ms lcement
-
-110
250kg 1ms Iwate }
12-20%1600
→
lmsfµarseAggrcgw}
finettggregate.LI
-2000kg
} 20 -30%
ko -
55%
Notes
when
doing a mix
design
it's the mass Kglms
of that
is NOT
material
density inns of concrete
per .
, Portlandcemento
CaO Calcium Oxide
Basic form
{ 1) Limestone →
of cement .
↳ Ca COs } limestone .
( calcium silicates) 2) Si Oz Silicon Dioxide ( silica)
Clay
→
By heating
stagesofmanufacturi n gi . I O
.
Blending Produces
→
raw meat
:( Chalk)
} Blended
↳ Limestone
:( shale ) 80/20 ratio
Clay
↳
.
t
Roller Mills :
particles 490µm
OR Ball Mills :
② Heating
* Raw meat to 1400°C -
15002
gE÷d¥ iaEa¥
③
.edu/
Preheat
Precakining Vessel
tower
"
Iselin
#
#
Alumina & Iron oxide
tr t
( Flux 5%4 3% added)
,③
Cooling
→
Clinker ( 12004 ) cooled to 60°C
Mixed with ( 3- 5% )
gypsum AND
→
( 5% ) filler → limestone
④ All
ground ( ballmill )
↳ Produces : Por tland :
clinker
No time limit
storage
→
→ round ( 4- 15 diameter )
→
When milled use in 3 Months .
Flash
setting
→
.
Add control
Sos to
setting
→
.
→
A 1203 & Fez 03
-- →
Responsible for
flash
setting .
, Drycementproc.es#
Limestone
Quarry
Preheating
Intern mix
storage
Ball / Rod Mill
store SITU
kiln
Rotary
¥#rocess:
① Raw materials
② ( 20°C 250°C)
Drying
-
③
day )
( of
Preheating ( Os Decamp .
④ coz)
Calcining Ca Cao
→ +
⑤ ( 1500°C )
Burning 1200 C
-
-
⑥ Clinker .
,PC : Portland cement
ash
Fly
FA :
.
G- GBS : Ground Granulated blast -
furnace
slag
Oxides
A : AKO , Alumina
F : Fez Iron Oxide
M
MgO
:
controls the
z
setting time
-
→
→ .
5 : 503 →
Gypsum .
C : Cao Lime
f : Feo
S . Sick silica
Compounds :
Css
Css
CSA
CLIAF
, Mineralcompositionofpci silica oxide
.
Mineral
y.incement-cakiumyoxi.de f
035 A- lite 35-55 36051-02
#
-
C. 25 Bette 20
-
KO 26051-02
Important
minerals 3A 5-12 3CaOAIzOz
.
✓
C4AF 5-10 KCAOA 1203 Fez 03
M 0.3 k
MgO
-
(5 4-7 Cason
free time TC . 0,5-2,5 CaO
Afteraddingwatertfoighepaeqyent.ge#ydration:
strength gain ~
2035+7 H DH}
Ifrpefigtartgaitn {
" → ↳ 52hL, t 3. CH t
zczs
-
+ sit
tfoighpffecentc.ge/CzAt3C5Hzt26H-C6A53H32tDH
h
→ ↳ Satta + CH + AH }
# water .
strength gain
#
( ¢AFt3C5Hzt ( 26in) H → CoA 53 He t
w CF Hn t AH
.
Will determine ammountot
( 5,503 ) to be added gypsum
-
controls aluminium content to
flash
prevent setting .
, Important
§
Sulfide resistant
,→ cement : how Cz A
When the site is far
p away .
↳ :C 257 Css
¥ ↳ High strength
Late
Css > Cz s
.
High early strength :
Our common cement
