Page 23 - ImmoCem In Mine Tailings Appplications - Technical Assessment

SHOTCRETE QUALITY IMPROVEMENT ADDING CONCRECEMA ND DECREASING CEMENT - 28 MPA
DESCRIP TION
UNIT.
PAT TERN
FIRST TEST
SECOND TEST
THIRD TEST
FOURTH TEST 30% TAILING
1
MIX DESIGN
2
Design Resistance
MPa
30
30
30
30
30
3
Water
kg.
185
185
145
185
200
4
Tailing
kg.
-
-
-
-
530
5
Sand
kg.
1500
1560
1610
1510
1005
6
Hydration controller
lt.
1. 69
1. 32
1. 96
1.4
2.5
7
Cement Type I 44
kg.
410
320
320
340
350
8
ConcreCem
kg.
-
1
1
1
-
9
ImmoCem
kg.
-
-
-
-
1
10
Super plasticizer
lt.
5. 64
4.4
6
4. 68
7. 26
11
Super Accelerator
lt.
23. 2
18. 1
18. 1
19. 2
19. 78
12
Synthetic fiber
kg.
4
4
4
4
4
13
DATA
14
Water/Cement
lt/kg 0. 451 0. 578 0. 453 0. 544 0. 571
15
RESIS TANCE
16
Day 03
MPa
8.7
3.5
4.8
6.5
6.8
17
Day 07
MPa
30. 7
27. 2
19. 6
28. 7
22. 5
18
Day 14
MPa
39. 5
34. 2
34. 9
32. 1
35. 2
19
Day 28
MPa
42
37
40. 4
46. 7
41. 6