ANALISIS KARAKTERISTIK CAMPURAN ASPAL PANAS DENGAN MENGGUNAKAN CAMPURAN ASPAL REJECT
Abstract: Natural road
materials are not renewable, but they can be reused. In long term it is getting
more difficult to obtain natural materials; therefore alternative materials are
needed for road pavement. Within this experiment, it was used reject asphalt
mixture as the main material and added with some coarse aggregate, fine
aggregate, filler and asphalt emulsion. The aim of this experiment is to
analyze the properties of Asphalt Concrete Binder Course (AC-BC), that utilize
reject asphalt mixture as the main material and added with asphalt emulsion.
The asphalt content of the reject asphalt mixture was 7.2%. The optimum asphalt
content of the AC-BC was 6.2% by weight of total mixture (with 0.9% added
residual asphalt emulsion towards the weight of the reject asphalt mixture).
The properties of the AC-BC at its optimum 6.2% asphalt content with 2x75
Marshall blows was: stability 3027,07 kg (spec ? 800kg); flow 4,29 mm (spec ?
3); Marshall Quotient 716,09 kg/mm (spec ? 250); VIM 4,05% (spec 3,0%-5%); VMA
15,349% (spec ? 14) and VFB 73,589% (spec ? 63). There is a possibility that
the time for mixing of asphalt mixture during production on site is longer than
it should be, due to problem on transportation which can cause hardening of the
asphalt binder. This situation is simulated by doing STOA (short term oven
ageing) test. The properties of the AC-BC above after STOA treatment gives:
stability of 1658,56 kg, flow 3,98 mm, Marshall quotient 435,39. Meanwhile the
VIM, VMA and VFB are respectively 4,54%; 15,447% dan 70,589%, all meet the
specification.
Penulis: I Wayan Gunawan
Kode Jurnal: jptsipildd140754
