Chapter 8 : Jordanian
Specifications
Flakiness and Elongation Index |
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Flakiness Index |
Not more than 30% |
Only on gravel (Wadi) |
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Elongation Index |
Not more than 30% |
Sources not rocks |
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Grading Requirements Of Fine Aggregates |
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Sieve |
Percent By Mass Passing Sieve |
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Size |
Sumsumiah |
Sand (2) |
Sand (3) |
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2” |
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1.5” |
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1” |
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¾” |
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½” |
100 |
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3/8” |
95-100 |
100 |
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#4 |
80-100 |
90-100 |
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#8 |
50-80 |
75-100 |
100 |
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#16 |
20-70 |
55-90 |
90-100 |
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#30 |
35-10 |
35-59 |
60-90 |
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#50 |
5-15 |
8-30 |
20-60 |
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#100 |
0-5 |
0-10 |
0-20 |
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#200 |
0-5 |
0-5 |
0-10 |
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Grading Requirements Of
Coarse Aggregates |
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Sieve |
Percent By Mass Passing Sieve |
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Size |
Jozeah |
Fuliah |
Humsiah |
Adasiah |
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2” |
100 |
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1.5” |
80-100 |
100 |
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1” |
20-50 |
95-100 |
100 |
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¾” |
10-30 |
40-80 |
95-100 |
100 |
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½” |
- |
5-50 |
50-80 |
90-100 |
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3/8” |
0-10 |
0-15 |
25-60 |
80-100 |
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#4 |
0-5 |
0-5 |
0-10 |
5-50 |
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#8 |
0-2 |
0-5 |
0-10 |
0-25 |
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#16 |
0 |
0 |
0 |
0 |
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#30 |
0 |
0 |
0 |
0 |
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#50 |
0 |
0 |
0 |
0 |
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#100 |
0 |
0 |
0 |
0 |
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#200 |
0-2 |
0-2 |
0-2 |
0-2 |
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Grading requirements for the combined aggregates
to be used in concrete |
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Sieve Size |
Grading of concrete |
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Grade 1 |
Grade 2 |
Grade 4 |
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2.5” |
95-100 |
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2” |
80-100 |
100 |
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1.5” |
65-85 |
90-100 |
100 |
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1” |
50-75 |
50-85 |
90-100 |
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¾” |
45-65 |
45-75 |
70-100 |
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½” |
- |
- |
- |
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3/8” |
38-55 |
38-55 |
50-75 |
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#4 |
30-45 |
30-45 |
35-60 |
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#8 |
23-35 |
23-35 |
27-45 |
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#16 |
17-27 |
17-27 |
20-35 |
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#30 |
10-17 |
10-17 |
12-25 |
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#50 |
4-9 |
4-9 |
5-15 |
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#100 |
1-7 |
1-7 |
1-5 |
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#200 |
0-5 |
0-5 |
0-5 |
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Fineness Modulus of fine aggregates |
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Fineness Modulus Of Fine Aggregate
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3.1 - 2.3 |
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Maximum Abrasion Limits |
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Grade Of Concrete |
Max. Abrasion |
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N/mm2 |
Kg/cm2 |
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41.2 |
420 |
30% |
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31.4 |
320 |
35% |
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20.6-26 |
210-265 |
40% |
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6.9-13-7 |
70-140 |
45% |
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Specific Gravity and Absorption of aggregates |
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Minimum Coarse Aggregate Specific Gravity SDD |
2.4 |
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Maximum Water Absorption Of Coarse Aggregates |
4% |
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Maximum Water Absorption Of Fine Aggregates |
6% |
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Water unsuitable for drinking |
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When the use of water not suitable for drinking, the compressive
strength of the mortar at 7, 28 days made from that water should at least
equal 90% of the strength of the same mortar made with drinking water. |
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Percentage of unsound materials in aggregates |
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Allowed Percentage By Dry Mass Of The Unsound
Materials
In Aggregates |
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Aggregate impurity |
Coarse |
Fine |
Clay lumps
|
.5 |
1 |
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Friable and light materials |
1 |
1 |
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Sulphate oxides |
0.25 |
0.25 |
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Salts (chloride group) |
0.1 |
0.1 |
Specimen
shape correction factor
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Specimen shape |
Specimen dimensions |
Correction factor |
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Cylinder |
150*300 |
1.25 |
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100*200 |
1.21 |
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500*250 |
1.31 |
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Prism |
150*150*150 |
1.25 |
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150*150*450 |
1.31 |
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200*200*600 |
1.31 |
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Cube |
100*100*100 |
0.975 |
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150*150*150 |
1.00 |
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200*200*200 |
1.040 |
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300*300*300 |
1.125 |
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Fine Materials in aggregates |
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Allowed Percentage Of
Fine Materials Passing Sieve # 200 In The Combined Aggregates Used In
Concrete |
5% |
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Specimen age correction factor |
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Age (days) |
Correction factor |
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3 |
2.5 |
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7 |
1.5 |
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28 |
1 |
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90 |
0.85 |
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360 |
0.75 |