Table A3 (cont'd).
c. 10C
d. 20C
Compressive strength (psi)
Compressive strength (psi)
Testing age (days)
Testing age (days)
Mix no.
7
14
28
Mix no.
7
14
28
1
41
60
113
1
0
0
71
2
376
600
722
2
45
66
170
3
1386
2091
2363
3
260
535
877
4
1549
2457
2994
4
254
677
1240
5
N/A
N/A
N/A
5
N/A
N/A
N/A
6
191
277
335
6
122
85
141
7
227
173
307
7
71
38
42
8
226
225
396
8
80
39
42
9
N/A
N/A
N/A
9
N/A
N/A
N/A
10
161
184
311
10
71
0
71
11
90
164
274
11
47
31
28
12
226
278
382
12
42
25
28
13
N/A
N/A
N/A
13
N/A
N/A
N/A
14
203
371
509
14
67
91
156
15
251
579
981
15
20
52
127
16
361
723
1269
16
17
52
203
17
N/A
N/A
N/A
17
N/A
N/A
N/A
18
287
401
472
18
51
81
146
19
213
546
1042
19
31
41
57
20
283
665
1070
20
25
39
75
Table A4. Chemical composition of admixtures tested in Phase 1, Task B.
Mix
% Solids
Dosage
Slump
no.
Antifreeze admixture formulation
in sol.
(% CWT)
w/c Ratio
(cm)
Remarks
Mix water at 9C. Concrete temp at 23C.
1
Control
0
0
0.48
5
2
KC1
30
2
0.48
10
3
KC1
30
6
0.48
11
4
KC1
30
8
0.48
13
5
Control
0
0
0.48
8
6
CNN
35
2
0.48
6
7
CNN
35
4
0.48
6
8
CNN
35
6
0.48
4
Unworkable at 22 min.
9
Control
0
0
0.48
4
10
CCT
33
2
0.48
4
11
CCT
33
4
0.48
3
12
CCT
33
6
0.48
3
13
Control
0
0
0.48
8
14
CCSD
35
2
0.48
5
15
CCSD
35
4
0.48
5
16
CCSD
35
6
0.48
3
17
Control
0
0
0.48
3
18
CCSN
33
2
0.48
3
19
CCSN
33
4
0.48
4
20
CCSN
33
6
0.48
3
25
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