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The availability of natural aggregate is getting limited, therefore it is required new alternative materials to substitute natural aggregates. Within this experiment reclaimed asphalt pavement (RAP) was used as masonry block with waste cooking oil as the binder. The objective of this experiment was to analyze the RAP asphalt content and aggregate gradation; and the samples characteristics particularly the compressive strength of masonry block minimum of 25 kg/cm 2  that meet the Indonesian national standard SNI-03-0348-1989. The asphalt content of the RAP was initially extracted and tested for its aggregate gradation and specific gravity. The RAP was added 20% sand and a certain amount of waste cooking oil and evenly mixed. After that the mixture was compacted in a mould with a Marshall hummer, with compaction cycles for 15, 25, and 35 times where each cycle consists of 3 even blows. The size of the compacted samples were 20x10x8cm. After the samples were taken out from the mould, they were heated in an oven for 12 and 24 hours at 160°C and 200°C. It was found that the minimum waste cooking oil content required 4%. The best compressive strength was found on samples compacted at 15 compaction cycles and heated at 200°C for 24 hours. The un-soaked compressive strength was 80.5 kg/cm 2  and 68.67 kg/cm 2  for the soaked samples. In general the compressive strength well met the minimum 25 kg/cm 2 . Other best characteristics was found on samples heated at 160°C for 12 hours, with lowest water absorption of 5.64% and porosity of 4.53%. The Initial Rate of Suction (IRS) was 0,25~0,45 kg/m 2 .minute.

Characteristics of masonry block that utilizes reclaimed asphalt pavement and waste cooking oil as the binder