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8/20/2019 Hyper Concrete
1/15
L7
High Volume Fly Ash Concrete
Dr. R.V. Ranganath
Professor & Head
Dept. Of Civil Engineering
BMS College of Engineering
Bangalore-560 019
8/20/2019 Hyper Concrete
2/15
L7
456: 2000 .
• C: 300450K /3
•
./C : 0.550.4
•
G C: 20 40
•
:
o A (F A, F, GGB, H A, )
o C A
()
• E G
•
C ,
.
()
E G
C ,
.
• A, 90 F A I.
• 65,000
• B 2015, 1000 K .
•
C C 70
H E G
:
1.
2. D
3.
C
4.
A
5.
8/20/2019 Hyper Concrete
3/15
L7
6. B
7.
()•
A
• I
•
• C
• I
•
G
• C
•
I
1. F 30 60%
2. /B < 0.40
3.
, C &
4. A
5. B
6.
B A
7.
D
8.
E
9.
1. A
2.
3.
4. I ,
5.
6.
7.
7
8/20/2019 Hyper Concrete
4/15
L7
.. , 1984.
(
)
F A
?
• F ,
.
•
L (C < 10% )o E
( ).
• H (C > 10% )
o E C .
•
2, A23, F23 ,C L I (LI).
•
, 2, K2, 3, , 2.
,
8/20/2019 Hyper Concrete
5/15
L7
FA , % 40 50 60
B, 435
C, 260 215 175
/B 0.42 0.42 0.42
, 75 85 95
A , % 3.5 3.8 4.0
B, /2 0.020 0.024 0.025
D, /3 2500 2495 2490
0
10
20
30
40
50
60
70
80
0 50 100 150 200
Age, days
C o m p r e s s i v e s t r e n g t h , M P a
40 50 60
0
1
2
3
4
5
6
7
8
0 50 100 150 200
Age, days
M O R , M P a
40 50 60
8/20/2019 Hyper Concrete
6/15
L7
0
10
20
30
40
50
28 60 90 180
Age, days
W a t e r p e n e t r a t i o n , m m
40 50 60
0
200
400
600
800
1000
0 50 100 150 200Age, days
C h a n g e p a s s e d , C o u l o m b
40 50 60
8/20/2019 Hyper Concrete
7/15
L7
F %
C , 0 25 40 56
1 27.8 26.2 18.1 10.0
3 41.4 33.5 30.1 26.9
7 46.1 43.5 42.6 41.6
28 61.6 59.2 60.4 57.7
182 62.6 60.9 62.1 64.5
• F + E E B A A .
• , HFA
CAE
8/20/2019 Hyper Concrete
8/15
L7
8/20/2019 Hyper Concrete
9/15
L7
,
1.
F 20 , ,
2.
30% 35
3. 40%
4. 50% F
,
C = 300
FA = 130
= 165
/B = 0.40
A = 1975
G = 35
•
A , 15 35 %
.
•
B D
•
60%
D 100 ,
8/20/2019 Hyper Concrete
10/15
L7
30% & 70%
700 , 7 CIDA
G 40
C 280
F 200
180
8/20/2019 Hyper Concrete
11/15
L7
2.8
A 1830
C , 7
28
90
27.0
40.2
?
F , 28 6.4
, DI , 17
C, A 1202, C 551
I HFAC
I
C /C/A
B B
I C:
•
•
• /
•
• 3
• A 40 100
8/20/2019 Hyper Concrete
12/15
L7
•
H
• C
•
450 , 40
• 60
•
C
•
( 100 )
• 660 H.
8/20/2019 Hyper Concrete
13/15
L7
•
,
.
• 90 , 30
•
20
• C
•
•
• I
/
•
• C
• B
o ,
o I ,
,
• .
• I
( ) .
• B
.
• .
•
• .
•
.
8/20/2019 Hyper Concrete
14/15
L7
•
L
•
I
, ,
.
.
8/20/2019 Hyper Concrete
15/15
L7