Why MAQT is Important?
- Its reliability is higher than all previous researches carried out on the concrete concerning its strength after hardening.
- It dose not leave any negative impact on the tested area, so it can be done for all parts of the concrete without exception.
- Site configuration and devices transfer and testing operations are low cost and requires short time.
- A decisive result obtains for any questionable concrete due to its compressive strength, in a very short time.
Comparing test results obtained by ( MAQT & ISO ) methods for a number of concrete samples with their Real Values (RV)
- V = pulse velocity in concrete.
- RV = real compressive strength value for samples (obtained by testing the samples by compression machine device).
|
Sample No |
Hammer Index |
|
Compressive strength (mpa) |
|
|
|||
|
Mean |
Standard.div |
V(km/s) |
MAQT |
ISO |
RV |
RV(FĆ)/ISO(FĆ) |
RV(FĆ)/MAQT(FĆ) |
|
|
1 |
20.4 |
1.4 |
3.35 |
13.7 |
7.5 |
12.8 |
1.707 |
0.934 |
|
2 |
24.8 |
1.602 |
4.55 |
35.2 |
20.5 |
37.07 |
1.808 |
1.053 |
|
3 |
26 |
1.901 |
4.51 |
33.1 |
21.7 |
33.27 |
1.533 |
1.005 |
|
4 |
27.6 |
2.408 |
4.65 |
33.1 |
24 |
32.21 |
1.342 |
0.973 |
|
5 |
25.9 |
2.11 |
4.53 |
32.1 |
21.8 |
33.08 |
1.517 |
1.031 |
|
6 |
26.4 |
2.007 |
4.5 |
32.4 |
21.3 |
32.1 |
1.507 |
0.991 |
|
7 |
22.5 |
3.571 |
4.56 |
20.1 |
17.4 |
21.11 |
1.213 |
1.050 |
|
8 |
23.2 |
3.422 |
4.51 |
21.2 |
18 |
21.62 |
1.201 |
1.020 |
|
9 |
19.2 |
2.234 |
4.49 |
25.8 |
14.7 |
23.95 |
1.629 |
0.928 |
|
10 |
23.4 |
1.534 |
4.51 |
34.3 |
18.7 |
32.48 |
1.737 |
0.947 |
|
11 |
22.9 |
1.956 |
4.51 |
31.15 |
18.3 |
29.71 |
1.623 |
0.954 |
|
12 |
23.6 |
1.763 |
4.5 |
32.6 |
19 |
31.35 |
1.650 |
0.962 |
|
13 |
25.1 |
1.641 |
4.27 |
30.18 |
17 |
33.01 |
1.942 |
1.094 |
|
14 |
22.7 |
1.425 |
4.23 |
29.88 |
14.9 |
29.81 |
2.001 |
0.998 |
|
15 |
23.3 |
1.712 |
4.23 |
28.2 |
15.1 |
30.62 |
2.028 |
1.086 |
|
16 |
24.6 |
2.686 |
4.33 |
24.49 |
17.7 |
24.22 |
1.368 |
0.989 |
|
17 |
25.9 |
2.641 |
4.43 |
27.2 |
21 |
27.48 |
1.309 |
1.010 |
|
18 |
25.7 |
3.188 |
4.63 |
26.8 |
22.8 |
26.5 |
1.162 |
0.989 |
|
19 |
24.4 |
2.727 |
4.45 |
26 |
20 |
25.85 |
1.293 |
0.994 |
|
20 |
25.6 |
2.805 |
4.48 |
26.8 |
20.8 |
28.19 |
1.355 |
1.052 |
|
21 |
30.15 |
4.256 |
4.01 |
14.86 |
18 |
14.7 |
0.817 |
0.989 |
|
22 |
24.6 |
2.437 |
4.74 |
32.69 |
22.5 |
31.86 |
1.416 |
0.975 |
|
23 |
26.9 |
2.112 |
4.63 |
34.2 |
24 |
32.93 |
1.372 |
0.963 |
|
24 |
36.66 |
2.08 |
4.659 |
38.3 |
36.5 |
41.818 |
1.146 |
1.092 |
|
25 |
38.22 |
1.81 |
4.735 |
41.3 |
39.4 |
41.415 |
1.051 |
1.003 |
|
26 |
37.35 |
2.221 |
4.777 |
39.8 |
38.8 |
38.4 |
0.990 |
0.965 |
| Mean | 1.451 | 1.002 | ||||||
| SD | 0.311 | 0.047 | ||||||
| COV% | 21.4 | 4.7/td> | ||||||
| Max | 2.028 | 1.094 | ||||||
| Min | 0.817 | 0.928 | ||||||
| >1 | 24 | 11 | ||||||