Experimental Study on Durability Improvement of Fly Ash Concrete with Durability Improving Admixture
Table 4
Mixture proportion and properties of fresh and hardened concrete.
W/B (%)
W/C (%)
FA/B (%)
Mixture proportion (kg/m3)
Fresh concrete
Compressive strength (N/mm2)
W
C
FA
S
G
D
Slump (cm)
Air (%)
7 days
28 days
91 days
Af0-60PL
60
60
0
182
303
0
856
—
19.0
1.7
26.0
35.5
41.0
Af0-60ST
170
283
0
813
—
18.1
4.0
25.3
36.1
38.7
Af15-60D
71
15
166
235
42
880
1014
10
18.6
1.4
20.7
29.2
40.6
Af15-60ST
166
235
42
815
—
18.6
4.2
17.6
27.7
35.8
Af25-60D
80
25
164
205
68
879
10
18.2
1.5
12.3
20.4
26.8
Af25-60ST
167
209
70
801
—
17.0
4.1
13.7
22.6
32.4
Af0-50PL
50
50
0
182
364
0
806
—
18.8
1.4
36.1
47.5
53.0
Af0-50D
174
348
0
814
10
18.7
1.0
35.8
46.4
54.1
Af0-50ST
170
340
0
766
—
18.7
4.4
33.3
45.5
50.4
Af15-50PL
59
15
174
296
52
823
—
18.5
1.7
30.3
43.2
55.6
Af15-50D
166
282
50
831
1014
10
18.2
1.2
28.6
38.3
51.4
Af15-50ST
166
282
50
766
—
18.2
4.5
25.0
36.5
45.8
Af25-50PL
67
25
172
258
86
820
—
18.5
1.6
26.3
34.5
51.4
Af25-50D
164
246
82
829
10
17.7
1.5
22.8
33.8
43.7
Af25-50ST
167
251
84
751
—
18.6
4.1
20.2
31.3
43.1
Af0-43PL
43
43
0
189
440
0
726
—
19.2
1.5
45.4
57.8
68.1
Af0-43ST
178
414
0
684
—
18.3
4.5
38.7
50.7
56.5
Af15-43D
51
15
173
342
60
752
1014
10
17.8
1.3
35.0
47.9
53.0
Af15-43ST
176
348
61
673
—
17.7
4.5
31.9
43.9
55.0
Af25-43D
57
25
171
298
99
748
10
17.8
1.6
30.0
42.6
55.3
Af25-43ST
177
309
103
655
—
18.3
4.4
26.6
37.6
48.6
Notes: W/B, W/C, and FA/B are, respectively, means of water-binder ratio, water-cement ratio, and fly ash binder ratio. W, C, FA, S, G, and D are, respectively, means of water, cement, fly ash, fine aggregate, coarse aggregate, and durability improving admixture.
