Introduction Old asphalt pavements Increase demand in landfill areas and landfill costs Landfill areas

Introduction Department of Public Works and Highways (DPWH) – Road Condition inventory as of June 2008, 25 kilometers of fair conditioned asphalt pavement. NCR ONLY This data relatively shows a partial percentage of the available resources, and that asphalt pavement recycling is possible.

Objectives of the Study Physical and mechanical properties of RAP as a road base material. To determine the strength of RAP with the blending of soil as base course material. To evaluate the effect of lime and cement in stabilizing RAP materials with soil.

Scope and Limitation RAP with the blending of an in-situ soil as base course stabilized with lime or cement. Using RAP as partial substitute for base course materials.

Scope and Limitation Laboratory tests result and will not conduct any field tests. Mechanical and physical properties of RAP as base course aggregate.

Significance of the Study Decrease generated waste materials brought about by pavement reconstruction. Department of Public Works and Highways - Bureau of Research and Standards.

Significance of the Study Future reference for: –technical people –civil engineering student researchers –other related field of studies Construction Industry.

Conceptual Framework INPUTOUTPUTPROCESS 1.Design parameters 2.Material requirements 3.Laboratory equipment 4.DPWH/ASTM Standard Design criteria Best design proportion for % of RAP, % of soil, and % of lime or cement Materials Property Tests Mix Design Preparation and Specimen Molding Moisture Density Relationship California Bearing Ratio FEEDBACK

Selection and Gathering of materials Preparation of Materials Materials Property Tests Analysis and comparison of tests with the DPWH standards Moisture Density Relationship California Bearing Ratio Conclusion and Recommendations Preparation of Mix Designs Research Flow Chart

Timetable October – November –Gathering of materials December –Preparation of materials and property tests January –Testing and Data Analysis February –Thesis Presentation