Specifications
The recycled concrete granular fill material produced is complies with the NRA Specifications for Road Works, Volume 1, 6F2 as per Series 600 of the above volume.
The test criteria to which the recycled material must comply with is as follows:
- Grading.
- Optimum moisture content.
- Moisture content.
- 10% fines.
- Our recycled product is in compliance with all four criteria above.
The typical grading requirements as per Table 6/2: Grading Requirements for Acceptable Earthworks Materials is as follows:
| Size (mm) BS Series |
Percentage by Mass Passing the Sieve Size shown |
| 100 |
100 |
| 75 |
65-100 |
| 37.5 |
45-100 |
| 10 |
15-75 |
| 5 |
Oct-60 |
| 0.6 |
0-30 |
| 0.063 |
0-10 |
In addition to the NRA specifications listed above our recycled product also complies with Annex A, Table 1 of EN13285:2003 which describes the approved constituents of “crushed mixed concrete aggregates”. Table A1 has been approved by the NRA Specifications for Road Works, Volume 1, Series 800 for use in unbound materials.
Table A1 is reproduced below:
| Components |
% by Mass |
| Main |
Crushed concrete (density >2.1Mg/m3) and aggregates (including slag) |
≥90 |
| Other Granular |
Crushed masonry |
≤10 |
| Crushed reclaimed asphalt |
≤5 |
| Containments |
Cohesive materials (including clay) |
≤1 |
| Organic Materials |
≤0.1 |