Research Article
Cold Recycled Asphalt Mixture using 100% RAP with Emulsified Asphalt-Recycling Agent as a New Pavement Base Course
Table 1
Mechanical properties of cold recycled asphalt mixtures with emulsified asphalt-recycling agent.
| Authors | Indirect tensile strength (ITS)(1) | Resilient modulus(1) | Curing period | Storage period | Compaction | Portland cement? | Observations |
| David [8] | — | 3,000 MPa to 3,500 MPa | 24 h at 60°C | Not specified | Marshall | Yes | Resilient modulus at ITS configuration | Silva [9] | 0.35 MPa | 1,000 MPa to 1,200 MPa | 7 and 28 days | Not specified | Modified Proctor | Yes | Resilient modulus at triaxial configuration, almost not influenced by confining stress | Andrade [10] | - | 1,000 MPa to 1,200 MPa | 28 days at 60°C + | Not specified | Modified Proctor | Yes | Resilient modulus at triaxial configuration, almost not influenced by confining stress | Mollenhauer et al. [11] | 0.4 MPa (7 days) 0.6 MPa (14 days) | — | 7 and 14 days | Not specified | Marshall and gyratory compactor | Yes | Resilient modulus at ITS configuration | Ma et al. [12] | 0.1 MPa (2 days) | — | 2, 3, 4, and 7 days at room temperature and 48 h at 60°C | Not specified | Marshall | Yes | Average ITS from 3 different recycling agents | 0.2 MPa (3 days) | 0.3 MPa (4 days) | 0.4 MPa (7 days) | Meocci et al. [2] | 0.4 MPa (3 days) | 4,000 MPa | 72 h at 40°C and additional 10 days at 20°C, resp. | Immediately | Gyratory compactor | Yes | Use of cement increased the values of ITS and RM | 0.7 MPa (13 days) | 5,000 MPa | Raschia et al. [13] | 0.4 MPa (28 days)(2) | 3,000 MPa(3) | 14 days at room temperature and 14 days at 40°C | Not specified | Gyratory compactor | No | Values from samples mixed and compacted at 25°C (2)soft asphalt | 0.6 MPa (28 days)(3) | (3)Hard asphalt | Raschia et al. [13] | 0.4 to 0.5 MPa (28 days)(3) | 2,000 MPa(3) | 14 days at room temperature and 14 days at 40°C | Not specified | Gyratory compactor | No | Values from samples mixed and compacted at 5°C (3)hard asphalt |
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(1)Resilient modulus and indirect tensile strength were measured after the curing time. (2)soft asphalt. (3)hard asphalt.
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