DPWH Standard Specifications for Highways, Bridges, and Airports

Item 100- Clearing & Grubbing
- Minimum requirement: None
Item 101- Removal of Structures & Obstruction
- Minimum requirement: None
Item 102- Excavation
- Same tests as for Items 103, 104, and 105 whichever is applicable.
Item 103- Structure Excavation
- If excavated materials are wasted, the volume shall be reported for quality control adjustments.
- If incorporated
- Tests required:
  - For every 1500 cu.m or fraction thereof:
  - 1-G, Grading Test
  - 1-P, Plasticity Test (LL, PL, Pl)
  - 1-C, Laboratory Compaction Test
  - 1-D, Field Density Test
Item 104- Embankment
- Same tests as for Item 103
Item 105 - Sub-grade Preparation
- Same tests as for Item 104
Item 106 - Compaction Equipment and Density Control Strips
- Same tests as for Items 104, 105, 200, 201, 202, 203, 204, 205, 206, and 300.
Item 107 - Overhaul
- Minimum requirement: None.

Item 200 - Aggregate Subbase Course
- For every 300 cu.m or fraction thereof:
- 1-G, Grading Test
- 1-P, Plasticity Test (LL, PL, Pl)
- For every 1500 cu.m or fraction:
  - 1-C, Laboratory Compaction Test
- For every 2500 cu.m or fraction:
  - 1-CBR, California Bearing Ratio Test
- For layers of 150 mm compacted depth:
  - At least one group of three in-situ density tests for each 500 sq.m or fraction thereof.
Item 201 - Aggregate Base Course
- Same tests as for Item 200
Item 202 - Crushed Aggregate Base Course
- Same tests as for Item 201
- For every 1500 cu.m or fraction:
- 1-F, Fractured Face
Item 203 - Lime Stabilized Road Mix Base Course
- Amount of Lime to be added: 3 to 12 mass % of dry aggregate
- Soil Aggregate tests: Same as Item 200
- Mix tests required for every 300 cu.m or fraction thereof:
- 1-C, Laboratory Compaction Test
- 1-UC, Unconfined Compression Test
- 1-CBR, California Bearing Ratio Test
- For each layer of 150 mm compacted depth: 1-D, Field Density Test
Item 204 - Portland Cement Stabilized Road Mix Base Course
- Amount of Cement: 6 to 10 mass % of dry soil aggregate
Item 205 - Asphalt Stabilized Road Mix Base Course
- Amount of Asphalt: 6 to 10 mass % of dry soil aggregate
Item 206 - Portland Cement Treated Plant Mix Base Course
- Same tests as for Item 204
Item 207 - Aggregate Stockpile
- Same tests as specified in applicable Item

Item 300 - Aggregate Surface Course
- Tests required for every 300 cu.m or fraction thereof:
- 1-G, Grading Test
- 1-P, Plasticity Test
- For every 1500 cu.m or fraction thereof:
- 1-C, compaction Test
- For each layer of 150 mm compacted depth:
- At least one group of three in-situ density tests.
Item 301 - Bituminous Prime Coat
- Quantity: 1 to 2 L/sq.m
- Quality Test for every 40 t or 200 drums
Item 302 - Bituminous Tack Coat
- Quantity: 0.2 to 0.7 L/sq.m
Item 303 - Bituminous Seal Coat
- Quality Test for every 40t
- Cover Aggregate quantity standards
Item 304 - Bituminous Surface Treatment
- Same test as for Items 301, 302, and 303.

Item 400 - Piling
- Timber Piles: Inspection Report required
- Concrete Piles:
- Reinforcing Steel testing with quality requirements
Item 404 - Reinforcing Steel
- Quality Test for Bending, Tension, and Chemical Analysis.
- For every size and 10,000 kg or fraction thereof.
Item 405 - Structural Concrete
- Concrete quality tests required for every 2000 bags or fraction thereof

Item 700 - Hydraulic Cement
- Same tests as Item 405.
Item 701 - Construction Lime
- Quality test for every 100 t or fraction thereof.
Item 703 - Aggregates
- Same tests as for specified items in the Bill of Quantities.