Laboratory testing of permanent deformation, resilient modulus, and stripping was performed to evaluate the engineering properties of construction material recycling (CMR) for compacted dense-graded hot mix asphalt by an analysis of variance (ANOVA) and Duncan’s multiple range tests. Four different proportions of igneous crush stone (ICS) and CMR used for mixtures are: (a) 100% ICS, (b) 100% CMR, (c) 50% coarse and fine CMR plus 50% coarse and fine ICS (50% CMR + 50% ICS), and (d) coarse CMR plus fine ICS (C-CMR + F-ICS). Two types of asphalt cement AC-10 and AC-20 are used as a binder for mixtures. On the basis of this study, the ANOVA of permanent deformation test shows that the types of aggregate have a significantly effect, no matter what test temperatures and binders used. The ANOVA of resilient modulus test shows the types of binder and aggregate do not have a significantly effect at test temperatures of 25 °C, but a significantly effect the types of binder at 40 °C. The analysis results of Duncan's multiple range test on permanent deformation at 2520 cycles indicate that the optimum mix properties is the C-CMR + F-ICS mixtures. All of the four-type mixtures for stripping test are satisfied the Taiwan Transportation Agency’s requirements.
[1]
G Nievelt,et al.
EVALUATION OF THE RESISTANCE TO DEFORMATION OF DIFFERENT ROAD STRUCTURES AND ASPHALT MIXTURES DETERMINED IN THE PAVEMENT-RUTTING TESTER (WITH DISCUSSION)
,
1988
.
[2]
Richard W Petrarca,et al.
SUMMARY OF TESTING OF RECYCLED CRUSHED CONCRETE
,
1984
.
[3]
Alan D. Buck.
Recycled concrete as a source of aggregate
,
1976
.
[4]
Prithvi S. Kandhal,et al.
Hot Mix Asphalt Materials, Mixture Design and Construction
,
1996
.
[5]
Alan D. Buck.
Recycled Concrete as a Sourceof Aggregate
,
1977
.
[6]
S. Emerson,et al.
AASHTO (American Association of State Highway and Transportation Officials). 2001. A Policy on Geometric Design of Highways and Streets. Fourth Edition. Washington, D.C.
,
2007
.