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Freeze-Thaw Resistance of Concrete With Marginal Air Content
APPENDIX A
Table 19. Coarse aggregate gradations mixes 115–118.
| Sieve size |
Limestone (% passing) |
ASTM C33 |
| 1 inch |
100.0 |
95–100 |
| ¾ inch |
92.7 |
|
| ½ inch |
44.1 |
25–60 |
| ⅜ inch |
18.1 |
|
| No. 4 |
3.0 |
0–10 |
| No. 8 |
1.1 |
|
Table 20. Coarse aggregate gradations mixes 223–302.
| Sieve size |
Limestone (% passing) |
ASTM C33 |
| 1-inch |
100.0 |
95–100 |
| ¾-inch |
92.7 |
|
| ½-inch |
44.1 |
25–60 |
| ⅜-inch |
18.1 |
|
| No. 4 |
3.0 |
0–10 |
Table 21. Coarse aggregate gradations mixes 346–350.
| Sieve size |
Limestone (% passing) |
ASTM C33 |
| 1-inch |
92.4 |
95–100 |
| ¾-inch |
34.9 |
|
| ½-inch |
9.5 |
25–60 |
| ⅜-inch |
1.5 |
|
| No. 4 |
0.3 |
0–10 |
Table 22. Fine aggregate gradation mixes 115–118.
| Sieve size |
Percent passing |
ASTM C33 |
| #4 |
98.1 |
95–100 |
| #8 |
80.4 |
80–100 |
| #16 |
63.4 |
50–85 |
| #30 |
33.1 |
25–60 |
| #50 |
10.2 |
5–30 |
| #100 |
3.4 |
0–10 |
| #200 |
0.7 |
|
Table 23. Fine aggregate gradation mixes 223–302.
| Sieve size |
Percent passing |
ASTM C33 |
| #4 |
98.1 |
95–100 |
| #8 |
80.4 |
80–100 |
| #16 |
63.4 |
50–85 |
| #30 |
33.1 |
25–60 |
| #50 |
10.2 |
5–30 |
| #100 |
3.4 |
0–10 |
| #200 |
0.7 |
|
Table 24. Fine aggregate gradation mixes 346–350.
| Sieve size |
Percent passing |
ASTM C33 |
| #4 |
97.8 |
95–100 |
| #8 |
86.7 |
80–100 |
| #16 |
72.9 |
50–85 |
| #30 |
46.3 |
25–60 |
| #50 |
16.7 |
5–30 |
| #100 |
4.2 |
0–10 |
| #200 |
1.4 |
|
Table 25. Other aggregate properties mixes 115–118.
| Property |
Sand |
Limestone |
| Bulk SG (dry) |
2.48 |
2.71 |
| Bulk SG (SSD) |
2.54 |
2.72 |
| Apparent SG |
2.65 |
2.73 |
| Absorption (%) |
1.4 |
0.4 |
Table 26. Other aggregate properties mixes 223–302.
| Property |
Sand |
Limestone |
| Bulk SG (dry) |
2.57 |
2.72 |
| Bulk SG (SSD) |
2.62 |
2.73 |
| Apparent SG |
2.66 |
2.74 |
| Absorption (%) |
1.1 |
0.4 |
Table 27. Other aggregate properties mixes 346–350.
| Property |
Sand |
Limestone |
| Bulk SG (dry) |
2.58 |
2.72 |
| Bulk SG (SSD) |
2.61 |
2.73 |
| Apparent SG |
2.67 |
2.74 |
| Absorption (%) |
1.36 |
0.28 |
Table 28. Cement composition (values in percent unless otherwise indicated) mixes 115–118.
| SiO2 |
20.5 |
| Al2O3 |
4.9 |
| Fe2O3 |
3.3 |
| CaO |
62.2 |
| MgO |
3.5 |
| SO3 |
3.0 |
| Na2O eq. |
0.6 |
| Loss on ignition (LOI) |
1.5 |
| Insoluble residue |
0.25 |
Table 29. Additional cement properties mixes 115–118.
| Potential compounds |
C3S (%) |
51 |
| C3A (%) |
7 |
| Fineness, Blaine (m2/kg) |
375 |
| Soundness, autoclave expansion (%) |
0.120 |
| Time of setting, Vicat (minutes) |
|
| Initial |
160 |
| Final |
265 |
| Air content (%) |
7.3 |
| Compressive strength (MPa) |
|
| 3 days |
27.0 |
| 7 days |
36.3 |
| 28 days |
48.6 |
Table 30. Cement composition (values in percent unless otherwise indicated) mixes 223–302.
| SiO2 |
20.5 |
| Al2O3 |
4.9 |
| Fe2O3 |
3.3 |
| CaO |
62.2 |
| MgO |
3.5 |
| SO3 |
3.0 |
| Na2O eq. |
0.60 |
| LOI |
1.5 |
| Insoluble residue |
0.25 |
Table 31. Additional cement properties mixes 223–302.
| Potential compounds |
C3S (%) |
51 |
| C3A (%) |
7 |
| Fineness, Blaine (m2/kg) |
375 |
| Soundness, autoclave expansion (%) |
0.10 |
| Time of setting, Vicat (minutes) |
|
| Initial |
150 |
| Final |
270 |
| Air content (%) |
6.8 |
| Compressive strength (MPa) |
|
| 3 days |
23.3 |
| 7 days |
31.0 |
| 28 days |
43.5 |
Table 32. Cement composition (values in percent unless otherwise indicated) mixes 346–350.
| SiO2 |
20.9 |
| Al2O3 |
4.4 |
| Fe2O3 |
3.0 |
| CaO |
62.8 |
| MgO |
3.5 |
| SO3 |
3.0 |
| Na2O eq. |
0.58 |
| LOI |
1.1 |
| Insoluble residue |
0.23 |
Table 33. Additional cement properties mixes 346–350.
| Potential compounds |
C3S (%) |
54 |
| C3A (%) |
7 |
| Fineness, Blaine (m2/kg) |
366 |
| Soundness, autoclave expansion (%) |
0.12 |
| Time of setting, Vicat (minutes) |
|
| Initial |
160 |
| Final |
265 |
| Air content (%) |
7.3 |
| Compressive strength (MPa) |
|
| 3 days |
27.0 |
| 7 days |
36.3 |
| 28 days |
48.6 |
|
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