Table A5. Compressive strength. Task 1C cured at various temperatures.
a. 20C
b. 5C
Compressive strength (psi)
Compressive strength (psi)
Testing age (days)
Testing age (days)
Mix no.
7
14
28
Mix no.
7
14
28
1
4480
N/A
5659
1
0
N/A
0
2
4522
N/A
5324
2
1000
N/A
1451
3
4225
N/A
4989
3
2593
N/A
4145
4
4169
N/A
5060
4
2391
N/A
4084
5
4404
N/A
5725
5
N/A
N/A
N/A
6
4220
N/A
5036
6
131
N/A
602
7
4385
N/A
5347
7
91
N/A
985
8
4055
N/A
4838
8
86
N/A
870
9
4560
N/A
5673
9
N/A
N/A
N/A
10
4951
N/A
6084
10
442
N/A
1035
11
5792
N/A
6719
11
336
N/A
1898
12
5626
N/A
6823
12
331
N/A
1280
13
4338
N/A
5446
13
N/A
N/A
N/A
14
3843
N/A
4824
14
189
N/A
703
15
4305
N/A
5045
15
75
N/A
1238
16
4272
N/A
5329
16
80
N/A
511
17
4110
N/A
5347
17
N/A
N/A
N/A
18
4824
N/A
6705
18
568
N/A
1437
19
5807
N/A
7026
19
165
N/A
1976
20
5368
N/A
6988
20
354
N/A
1393
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
0
N/A
0
1
0
N/A
0
2
284
N/A
438
2
0
N/A
0
3
1211
N/A
2556
3
0
N/A
556
4
1649
N/A
3654
4
0
N/A
842
5
N/A
N/A
N/A
5
N/A
N/A
N/A
6
0
N/A
0
6
0
N/A
0
7
0
N/A
0
7
0
N/A
0
8
0
N/A
0
8
0
N/A
0
9
N/A
N/A
N/A
9
N/A
N/A
N/A
10
0
N/A
0
10
0
N/A
0
11
0
N/A
0
11
0
N/A
0
12
0
N/A
24
12
0
N/A
0
13
N/A
N/A
N/A
13
N/A
N/A
N/A
14
0
N/A
0
14
0
N/A
0
15
0
N/A
0
15
0
N/A
0
16
0
N/A
0
16
0
N/A
0
17
N/A
N/A
N/A
17
N/A
N/A
N/A
18
0
N/A
0
18
0
N/A
0
19
0
N/A
0
19
0
N/A
0
20
0
N/A
0
20
0
N/A
0
26
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