DPWH Materials and Project Engineer Accreditation Reviewer

Comprehensive vocabulary flashcards covering DPWH standards, material testing frequencies, construction survey tolerances, structural concrete specifications, geotechnical borings, and ports/harbors and drainage guidelines.

Field Offices and Living Quarters (Construction Schedule)

Facilities that must be constructed by the contractor within $3\,\text{months}$ upon the commencement of the Works.

Field Facilities Proximity Radius

The requirement that all field offices, laboratories, and living quarters provided by the contractor be situated within a $5\,\text{km}$ radius or preferably near the job site.

Centerline Cross-Section Spacing (Sharp Curves)

Cross-sections taken at a maximum centerline spacing of $10.0\,\text{m}$ when the horizontal curve radius is $\le 150\,\text{m}$ and the vertical parabolic curve radius is $\le 100\,\text{m}$.

Centerline Cross-Section Spacing (Flat Curves / Tangents)

Cross-sections taken at a maximum centerline spacing of $20.0\,\text{m}$ when the horizontal curve radius is $> 150\,\text{m}$ and the vertical parabolic curve radius is $> 100\,\text{m}$.

Structural Concrete Slag Density

The density threshold for blast furnace slag used in structural concrete, which shall not be less than $1,120\,\text{kg/m}^3$.

Fly Ash Replacement Limit

The maximum permissible percentage of Portland Cement that can be partially replaced by fly ash in a concrete mix, specified at not exceeding $20\%$.

Cement Stacking Height

The allowable storage stacking limit for bagged cement, restricted to a maximum of $14\,\text{layers}$ for storage periods under $60\,\text{days}$ and $7\,\text{layers}$ for periods exceeding $60\,\text{days}$.

Timber Formwork Moisture Content

The allowable moisture content of timber used to manufacture formwork, which must be kept between $15\%$ and $20\%$.

Metal Form Thickness

The minimum thickness requirement for metal forms, which is $2.5\,\text{mm}$ to $3.0\,\text{mm}$, to ensure forms remain true to shape.

Structural Steel Tube Formwork Supports

Steel tubes used as formwork support that must possess a minimum wall thickness of $4.0\,\text{mm}$.

Lean Concrete

A concrete layer primarily used to provide a suitable base layer for concrete structures, requiring a slump of $25\,\text{mm}$ to $75\,\text{mm}$ and a 7-day compressive strength of at least $80\%$ of $13.8\,\text{MPa}$.

Structural Concrete Pipe Volume Deduction Limit

The rule stating that no deduction in payment will be made for the volume occupied by pipes having an outside diameter less than $101\,\text{mm}$.

Pre-Cast Steam Curing Pre-Steaming Period

The mandatory waiting period of at least $4.0\,\text{hours}$ after concrete placement before steam application begins on precast members.

Pre-Cast Concrete Piles Water Curing Period

The minimum period of $14\,\text{days}$ during which newly placed conventionally reinforced or prestressed concrete piles must be continuously kept under moisture.

Rammed Aggregate Column

A ground improvement system functional in sands, clays, silts, and peat, designed with a minimum installation depth of $5.0\,\text{m}$.

Reclamation Filling Material Sulfate Content

The maximum allowable sulfate content in filling materials utilized for land reclamation, capped at $2.0\%$.

Dredging Proximity to Waterfront Structures

The requirement that the top edge of dredging works shall not approach closer than $10\,\text{m}$ from existing riverbanks, revetments, dikes, or river training structures.

Medical Room and First Aid Facilities (Site Dimensions)

Onsite medical space required to have a minimum floor area of $15\,\text{m}^2$ and a minimum glazed window area of $2\,\text{m}^2$.

Billboard Spacing on DPWH Road Projects

Project signage regulation requiring two billboards (one at the beginning and one at the end), an additional billboard every $5\,\text{km}$ interval for projects $\ge 10\,\text{km}$, and prohibiting other billboards within $100\,\text{m}$ before or after project limits.

DOLE Regional Office Accident Notification

Mandatory employer requirement to initially notify the DOLE Regional Office within $24\,\text{hours}$ following any dangerous occurrence or major accident causing death or permanent total disability.

OSH Medical Staffing Threshold

Safety standard mandating a full-time nurse, physician, dentist, and a 1-bed emergency hospital when the workforce exceeds $300\,\text{employees}$, with 1 additional bed for every $100\,\text{employees}$ in excess of 300.

Bedrock Verification Core Depth

A continuous rock core length of at least $1.5\,\text{m}$ (or at least $3.0\,\text{m}$ for structures directly founded on rock or rock-bearing piles) drilled to prove the boring has reached bedrock rather than a suspended boulder.

Scaffolding and Shoring Load Capacity

Safety design criteria requiring scaffolding and shoring systems to support at least $4\,\text{times}$ the designed working loads, with a maximum erection height of $15\,\text{m}$ unless authorized in writing by the DPWH Engineer.

Elevator Car Dimensions (BP 344)

Accessibility mandate requiring passenger elevators to have minimum dimensions of $1.10\,\text{m} \times 1.40\,\text{m}$.

Stairway Step Geometry (BP 344)

Accessibility standard specifying a maximum riser height of $200\,\text{mm}$, a minimum tread run of $250\,\text{mm}$, and a maximum rise/run variation within any one flight of $5\,\text{mm}$.

Rock Fill Embankment Specific Gravity

The minimum specific gravity for sound, durable rock fill material, which must be above $2.40$.

Earth Embankment Lift Thickness

The loose placement depth limit for layers of earth embankment material, which must not exceed $200\,\text{mm}$ before compaction.

Truck Mixer Speed Limits

The required mixing rotational speed of transit truck mixers, maintained between $4\,\text{rpm}$ minimum and $6\,\text{rpm}$ maximum.

Concrete Class Seal

A specific structural concrete class deposited underwater, proportioned with a minimum cement content of $380\,\text{kg/m}^3$ and maintained at a slump of $4\,\text{cm}$ to $8\,\text{cm}$.

Tremie Tube Diameter

The watertight discharge conduit used for placing concrete underwater, which must have a minimum diameter of $250\,\text{mm}$.

Reinforcing Bar Lap Splice Size Limit

The bar diameter limit above which lap splices are prohibited, applying to all reinforcing steel bars larger than $36\,\text{mm}\,\varnothing$.

Bar Mat Overlap

The minimum width overlap required when splicing adjacent welded wire fabric or bar mat sheets, which shall not be less than $1\,\text{mesh}$.

PWD Washroom Door Signage (BP 344)

Standard door plaques consisting of an equilateral triangle with edges measuring $0.30\,\text{m}$ for men and a circle of $0.30\,\text{m}$ diameter for women, each having a minimum thickness of $7.5\,\text{mm}$.

Standard Penetration Test (SPT) Driving Energy

Geotechnical in-situ test procedure in which a split-spoon sampler is driven into soil using a $63.6\,\text{kg}$ hammer dropping freely from a height of $760\,\text{mm}$, recording the blows needed for the last $300\,\text{mm}$ as the N-value.

Split-Spoon Sampler Refusal

Test termination criteria defined as 50 blows to drive any $150\,\text{mm}$ increment, 100 blows to drive $300\,\text{mm}$, or 10 consecutive blows producing zero advance.

Soil Poisoning: Drenching Method

Termite control method deployed when the soil exhibits visible termite infestation, applying Type I working solution at a heavy rate of $24\,\text{L/m}^2$.

Soil Poisoning: Cordoning Method

Termite preventative measure applied when there is no visible infestation, digging concentric trenches $150\,\text{mm}$ to $220\,\text{mm}$ wide spaced at least $1\,\text{m}$ apart and treated at $8\,\text{L/linear m}$.

Private Testing Laboratory Certificate Validity

The accreditation credential issued to private material testing facilities, which remains valid for $2\,\text{years}$ and is renewable every other year.

Concrete Core Test Acceptance Criteria

Acceptance standard stating that cored concrete is compliant if the average core compressive strength is $\ge 85\%$ and no single core strength is $< 75\%$ of the specified compressive strength.

PVC Sheet Pile Allowable Stress

The maximum allowable design stress of $22\,\text{MPa}$ used when designing structural PVC sheet pile sections.

Mooring Fixture Fixing Hardware

Anchor bolts, nuts, and washers fabricated from hot-zinc coated steel possessing a minimum tensile strength of $37\,\text{kg/mm}^2$.

Rubber Dock Fender Skin Thickness

The outer elastomeric protective layer of marine dock fenders, requiring a minimum outer skin thickness of $32\,\text{mm}$.

Bumper (Buffer)

An energy-absorbing crane device designed to reduce impact when a moving crane or trolley reaches the end of its travel or contacts another moving unit.

Hoist

An apparatus functioning independently or as part of a crane that exerts mechanical force for lifting or lowering loads.

Rated Load (Crane)

The designated maximum load for which a crane or hoist is engineered and built by the manufacturer, indicated on its equipment nameplate.

Reinforcing Mat (Item 1405)

A fabric or mat layer placed over low bearing capacity soils to improve foundation stability and reduce settlement beneath bulkheads or roadway fills without removing soft underlying soils.

Precast Prestressed Concrete Floor Joist Seating Clearance

The minimum support bearing length for floor joists, specified as at least $100\,\text{mm}$ when supported on concrete beams and at least $75\,\text{mm}$ when supported on structural steel I-beams.