Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Development of a Composite Specimen Interface Cracking (CSIC) Test for Reflective Cracking
Pavement reflective cracking performance depends not only on layer material characteristics, but also on layer interface conditions. One way to potentially enhance cracking resistance is by applying a specially designed polymer modified asphalt emulsion (PMAE) at the interface. PMAE residue wicks up into mixture voids and creates an asphalt-rich mix near the interface, defined as bonded interface, which is more than an adhesive film. Therefore, shear strength tests, which can well characterize the adhesive film effect along the interface, cannot fully capture the effect of bonding agents on cracking across the interface. In order to evaluate the effect of interface conditions on cracking performance, a composite specimen interface cracking (CSIC) test was developed. This test was designed to initiate and propagate a crack from one material layer through the interface into the other material layer (s). The characteristics of bonded interfaces, CSIC test, and some results obtained from CSIC tests were presented in this paper. Results show that CSIC test is an effective tool to evaluate the effects of interface conditions on reflective cracking performance.
Development of a Composite Specimen Interface Cracking (CSIC) Test for Reflective Cracking
Pavement reflective cracking performance depends not only on layer material characteristics, but also on layer interface conditions. One way to potentially enhance cracking resistance is by applying a specially designed polymer modified asphalt emulsion (PMAE) at the interface. PMAE residue wicks up into mixture voids and creates an asphalt-rich mix near the interface, defined as bonded interface, which is more than an adhesive film. Therefore, shear strength tests, which can well characterize the adhesive film effect along the interface, cannot fully capture the effect of bonding agents on cracking across the interface. In order to evaluate the effect of interface conditions on cracking performance, a composite specimen interface cracking (CSIC) test was developed. This test was designed to initiate and propagate a crack from one material layer through the interface into the other material layer (s). The characteristics of bonded interfaces, CSIC test, and some results obtained from CSIC tests were presented in this paper. Results show that CSIC test is an effective tool to evaluate the effects of interface conditions on reflective cracking performance.
Development of a Composite Specimen Interface Cracking (CSIC) Test for Reflective Cracking
Chai, Zhi (Autor:in) / Liu, Tao (Autor:in) / Cao, Jiang (Autor:in)
2013
5 Seiten
Aufsatz (Konferenz)
Englisch
Development of a Composite Specimen Interface Cracking (CSIC) Test for Reflective Cracking
| British Library Conference Proceedings | 2013
Development of a Composite Specimen Interface Cracking (CSIC) Test for Top-Down Cracking
| British Library Online Contents | 2013