DPWH Blue Book Volume 3 PDF

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REPUBLIC OF THE PHILIPPINES DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS OFFICE OF THE SECRETARY BONIFACIO DRIVE, PORT AREA MANILA

STANDARD SPECIFICATIONS FOR PUBLIC WORKS STRUCTURES VOLUME III

STANDARD SPECIFICATIONS FOR PUBLIC WORKS STRUCTURES (BUILDINGS, PORTS AND HARBORS, FLOOD CONTROL AND DRAINAGE STRUCTURES AND WATER SUPPLY SYSTEMS) 1995

REPUBLIC OF THE PHILIPPINES DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS OFFICE OF THE SECRETARY MANILA

FOREWORD

Prior to the merger of the Ministries of Public Highways and Public Works, the specifications for highway construction were contained in the 1972 Standard Specifications for Highways and Bridges, and the specifications for public works construction were presented in various forms and styles and contained in as many volumes as those representing the various types of public works projects such as buildings, ports and harbors, flood control and drainage structures, and water supply systems. Since the construction of all public works and highways infrastructures is now the responsibility of one single government agency - Department of Public Works and Highways, it has become imperative that these separate specifications be reviewed, updated, and consolidated. For this purpose a Committee was constituted to revise and standardize said specifications. The results of this undertaking are now embodied in the 1995 edition of the Standard Specifications for Public Works Structures, Volume III. These specifications have been prepared to provide all the information necessary for the proper construction of buildings, ports and harbors, flood control and drainage structures and water supply systems. It is incumbent upon all engineers in the DPWH to familiarize themselves with the contents of this volume and be guided accordingly.

GREGORIO V. VIGILAR Secretary

VOLUME III STANDARD SPECIFICATIONS FOR PUBLIC WORKS STRUCTURES (Buildings, Ports and Harbors, Flood Control and Drainage Structures and Water Supply Systems)

TABLE OF CONTENT

DIVISION I - GENERAL .................................................................

PAGE 1

PART A - EARTHWORK.................................................................

2

ITEM 800 - Clearing and Grubbing .................................... 801 - Removal of Structures and Obstructions ........ 802 - Excavation ...................................................... 803 - Structure Excavation........................................ 804 - Embankment ................................................... 805 - Dredging .......................................................... 806 - Reclamation .....................................................

2 2 2 2 2 2 5

PART B - PLAIN AND REINFORCED CONCRETE WORKS

8

ITEM 900 - Reinforced Concrete .........................................

8

DIVISION II - BUILDINGS .................;..........................................

16

PART C - FINISHING .....................................................................

16

ITEM 1000 - Termite Control Work .................................... 1001 - Storm Drainage and Sewerage System .......... 1002 - Plumbing ........................................................ 1003 - Carpentry and Joinery Works ......................... 1004 - Hardware ......................................................... 1005 - Steel Windows ............................................... 1006 - Steel Doors and Frames ...........:..................... 1007 - Aluminum Glass Doors ................................. 1008 - Aluminum Glass Windows ............................. 1009 - Jalousie Windows.......................................... 1010 - Wooden Doors and Windows ........................ 1011 - Rolling Up Doors ........................................... 1012 - Glass and Glazing......................................... 1013 - Corrugated Metal Roofing ............................. 1014 - Prepainted Metal Sheets ................................. 1015 - Clay Roof Tile ................................................. 1016 - Waterproofing ................................................

16 18 22 31 35 40 43 46 48 50 52 57 59 62 67 70 72

1017 - Roof Drains with Strainers ............................ 1018 - Ceramic Tiles ................................................ 1019 - Wood Tiles ..........................:......................... 1020 - Vinyl Floor Tiles ............................................. 1021 - Cement Floor Finish ...................................... 1022 - Stucco Finish ................................................ 1023 - Granolithic Marb[e Work ................................ 1024 - Pea Gravel Washout Finish .......................... 1025 - Bush Hammered Finish ................................. 1026 - Pebble Washout Finish .................................. 1027 - Cement Plaster Finish ................................... 1028 - Synthetic Adobe. .......................................... 1029 - Granatite Washout Finish .............................. 1030 - Accoustical Ceiling ........................................ 1031 - Accoustical Treatment .................................. 1032 - Painting. Varnishing and Other Related Works ................................ PART D - ELECTRICAL................................................................. ITEM 1100 - Conduits, Boxes and Fittings .......................... 113 1101 - Wires and Wiring Devices .............................. 1102 - Power Load Center, Switchgear and Panel Boards ................................. PART E - MECHANICAL ................................ ................................ ITEM 1200 - Air-Conditioning and Refrigeration System........................................................ 1201 - Water Pumping System ................................. 1202 - Automatic Water Sprinkler System ................ 1203 - Electric Elevator ............................................ 1204 - Electric Dumbwaiter ...................................... 1205 - Oxygen, Nitrous Oxide, Vacuum and Fuel Gas System ..................................... 1206 - Heating System ............................................. 1207 - Boiler ............................................................. 142 DIVISION II - PORTS AND HARBORS .................................. PART F – PILING ………………………………………………… ITEM 1300 - Piling To Include Sheet Piling ......................... 1301 - Test Pile ........................................................... PART G - PROTECTIVE WORKS AND ACCESSORIES .............. ITEM 1400: Mooring Fixtures ...........................................

77 78 82 84 86 88 90 91 93 95 98 100 102 104 106 108 113

116 118 123

126 126 128 132 135 137 140

146 146 146 156 158 158

1401 - Timber Waling ............................................... 1402 - Fender Clusters and Dolphins ...................... 1403 -. Rubber Dock Fenders .................................. 1404 - Filter Fabric .................................................. 1405 - Reinforcing Mat ............................................. 1406 - Deflector Wall. Bulkhead Curbs and Stair Landing ...................................... PART H - BULKHEADS ........................................................... ITEM 1500 - Sand Mattress ....................................... 1501 - Rockworks ........................................... 1502 - Filter Materials ...................................... 1503 - Excavation For Bulkheads and Reclamation .....................................

160 161 163 164 166 167 169 169 170 172 174

DIVISION IV - FLOOD CONTROL, DRAINAGE . AND WATER SUPPLY.......................................................

176

PART I - WATER SUPPLY.......................................................

176

ITEM 1600 - Excavation .................................................... 176 1601 - Backfill and Fill............................................... 178 1602 -Installation of Pipeline .................................... 179 1603 - Installation of Valves ...................................... 186 PART J - FLOOD CONTROL AND DRAINAGE ..................... PART I-A - Earthwork .............................................................. ITEM 1700 - Clearing and Grubbing .................................. 1701 - Channel Excavation ...................................... 1702 - Structure Excavation..................................... 1703 - Dredging ........................................................ 1704 - Embankment ................................................. 1705 - Fill and Backfill............................................... 1706 - Hauling and Disposal/Overhaul..................... 1707 - Aggregate Subbase Course .......................... 1708 - Aggregate Base Course ................................ 1709 - Crushed Aggregate Base Course ................. PART I - B - Bank and Slope Protection Works ....................... ITEM 1710 - Riprap and Grouted Riprap ........................... 1711 - Stone Masonry .............................................. 1712 - Concrete Slope Protection ............................ 1713 - Rubble Concrete/Sand or Stone Masonry .... 1714 - Gabions .........................................................

188 188 188 188 189 189 192 196 196 196 196 196 196 196 196 196 196 196

1715 - Filter Fabric ................................................... 1716 - Piling .............................................................. 1717 - Sheet Piles ....................................................

196 196 197

PART I - C - Drainage Works ..........................................................

197

ITEM 1718 - Pipe Culverts and Storm Drains .................... 1719 - Underdrains .................................................. 1720 - Manholes, Inlets and Catch Basins ............... 1721 - Cleaning and Reconditioning Existing Drainage Structures ....................

197 197 197 197

VOLUME III STANDARD SPECIFICATIONS FOR PUBLIC WORKS STRUCTURES (Buildings, Ports and Harbors, Flood Control and Drainage Structures and Water Supply Systems)

Division I - General

These Specifications cover public works construction such as buildings, flood control and drainage structures, portworks and water supply systems including auxiliary/related structures and mechanical-electrical systems.

Unless otherwise provided herein, all applicable provisions of Volume II Standard Specifications for Highways, Bridges and Airports shall be adopted for the construction of the aforementioned structures.

PART A - EARTHWORK ITEM 800 –CLEARING AND GRUBBING Refer to Item 100, Part C of Volume II (Blue Book) ITEM 801 - REMOVAL OF STRUCTURES AND OBSTRUCTIONS Refer to Item 101, Part C of Volume II (Blue Book) ITEM 802 – EXCAVATION Refer to Item 102, Part C of Volume II (Blue Book) ITEM 803 – STRUCTURE EXCAVATION Refer to Item 103, Part C of Volume II (Blue Book) ITEM 804 – EMBANKMENT Refer to Item 104, Part C of Volume II (Blue Book) ITEM 805 – DREDGING 805.1 Description This item shall consist of the excavation of seabeds, river beds, bottoms of creeks or esteros, and other bodies of water for the purpose of deepening or removing of silt or any unsuitable materials or soil layers up to the required bottom elevation and grade line and disposal of same at areas indicated on the Plans or as designated by the assigned Project Engineer. 805.2 Construction Requirements 805.2.1

Construction Survey and Reference Elevation All elevation shall be referred to the mean lower low water (MLLW) elevation

0.00 A construction survey shall be undertaken by the Contractor under the control of the designated/assigned Engineer to serve as basis for the computation of the actual volume of dredged materials. 805.2.2 Equipment The contractor shall furnish all the necessary dredging equipment to assure satisfactory prosecution of the work. 805.2.3 Execution of the Work The dredging work shall be undertaken by the Contractor starting from the downstream section or within the limits indicated on the Plans and in accordance with the Specifications and approved work schedule.

805.2.4 Materials to be Dredged All available data regarding the materials to be dredged are given in the soil investigation reports and as indicated in the boring logs on the Plans. Materials to be dredged may range from muck, sandy loam to coral. The contractor may at his own initiative verify or check at his own expense all the data regarding the materials to be encountered. He shall not be entitled to any claim against the government in case of incorrect interpretation of the borings or laboratory test results of the soil investigation. 805.2.5 Dredging Tolerances (Over depth) The dredging shall be executed according to the depths or elevations indicated on the Plans. No elevation higher than the indicated elevation shall be tolerated. An allowance of 300 mm shall be acceptable for overdredging, but in no case shall the entire dredging area shall be dredged to the allowable 300 mm tolerance. All quantities due to overdredging shall be at the Contractor's expense. In case of excessive overdredging (beyond the 300 mrn tolerance) the Contractor shall on his account backfill the overdredged areas and/ or take all necessary measures as approved by the Engineer to protect the stability of nearby structures. 805.2.6 Dredging Slopes All dredging slopes shall be to the specified gradient and within the limits specified on the Plans. 805.2.7 Dredging Basins The theoretical boundaries of dredging are shown on the Plans. The dredging shall be carried out to the specified depth with the permissible overdredging specified in Sub Section 805.2.5. The preferred degree of slopes between the original bottom and the indicated dredging level is 1 (vertical) to 4 (horizontal) for layers of clay and 1 to 6 for layers of sand and silty sand and 1 to 10 for layers of rnud or silt. 805.2.8 Dredging Adjacent Waterfront Structures In addition to the requirements mentioned in Subsection 805.2.7 the following shall apply for dredging carried out adjacent waterfront structures: (a) The maximum permissible overdredging is 300 mm within the strip defined in (d). (b) Dredging adjacent to any part of sheet pile walls on the berm specified in (d) shall be carried out to the depth specified without overdredging. (c) Dredging adjacent to any part of Rock bulkhead or Rock breakwater shall not be allowed within the specified in (d). Dredging adjacent to any structure provided with toe protection shall not be deeper than the level of the toe protection or as specified on the Plans. (d) The limits of strip or berm mentioned in (a), (b) and (c) are as follows: -

Berm from the quayline or toe of a rock mound structure to the basin infront.

-

Strip-from the outside limit of the berm and further out the basin.

-

The width of the berm and strip shall be as follows:

Rubble Mound Structure Sheet Pile Walls

Berm

Strip

5m 3m

10m 20m

(e) Dredging outside the strip may proceed in accordance with sub-section 805.2.5. The contractor shall be fully responsible for the safety of any permanent structures on the site. During the dredging operations, the sheet pile walls shall be observed regularly for deflection of the top edge.Temporary and permanent bench marks and reference points shall be established for determining possible movements of waterfront structures. 805.2.9 Disposal of Spoils All unsuitable dredged materials shall be dumped at the spoil EJea shown on the Plans or into the open sea as directed by the designated/ assigned Project Engineer. Good quality dredged material shall be dumped in reclaimed areas in accordance with Item 806, Reclamation. Excess quantities shall be deposited at areas as designated by the Engineer. 805.2.10 Articles of Value or Wreckage Articles of value, wreakage or obstructions discovered on the site shall be reported by the contractor in writing to the Engineer who in turn shall consult with the proper agency/official concerned for their proper disposal. 805.3 Method of Measurement The Engineer shall verify that the dredging between the pre and post dredging surveys, subjected to the condition of subsection 805.2.5, Dredging Tolerances. 805.4 Basis of Payment The cost of dredging shall be paid based on the computed volume of drp.dged materials multiplied by the contract unit price for the particular pay item shown in the Bid Schc·jule, which price and payment shallconstitute full compensation for dredging, handling and disposal including labor, equipment, tools and iricidentals necessary to complete this item. Payment Item 805 (1) 805 (2)

Description Dredging – soils Dredging - coral material

Pay Unit m3 m3

ITEM 806 - RECLAMATION 806.1 Description This item shall consist of introducing suitable filling materials obtained from dredging the sea or river beds or obtained from authorized borrow areas situated beyond the right-of-way

limits of the project at locations designated by the Engineer and placed as required within the area to be reclaimed and to the required elevation. The materials shall be of a quality satisfactory for the purpose intended. Reclamation shall include the clearing and grubbing of sites and the removal of all undesirable materials. 806.2 Materials Requirements Filling materials shall consist of all types of earthen materials such as soil, gravel, sand, shells, corals, cinders and rock of any geologic origin and any additional filler for blending which have distinctive properties readily identified in the field and have distinct engineering characteristics of which practical use can be made. Materials such as weeds, silt, muck and other superfluous or organic materials are not considered suitable materials for reclamation. 806.3 Construction Requirements 806.3.1 By Dredging Dredged material shall be secured from the dredging limits as shown on the plans or from other sources recommended by the designated/ assigned Engineer. The materials dredged shall be transported and deposited at the area to be filled or as directed by the Engineer. Suitable dredges and attendant plantwith which to dredge, transport and deposit the material shall be used. Silt and mud shall not be allowed to accumulate at the reclamation area but shall be allowed to flow freely towards the spillway which the contractor shall construct for the purpose. Should mud pools be formed, the Contractor shall be required to remove the mud accumulated. 806.3.2 By Borrow Borrow material shall be secured from land sources recommended as borrow outside the limits of the project or at locations/sites approved by the Engineer. Borrow material may be used to supplement the materials obtained by dredging. Contractor shall construct and maintain haul roads.The contractor shall secure borrow from sources other than those designated, provided that the materials and location are approved by the Engineer, in which case, the Contractor shall, at his own expense, secure the pit and construct and maintain the haul roads together with the necessary right-of-way for such roads and the right-of-access thereto. The materials shall be hauled and placed in positions on the reclamation indicated on the plans. Borrow pits when practicable shall be so excavated that they will drain to the nearest natural outlet or to such outlet as indicated on the plans or designated by the Engineer. Side slopes of borrow puts in all cases shall be dressed to such slope as the Engineer may direct. Compaction Requirement The materials above MLLW whether obtained by dredging or from borrow pits shall be spread out and compacted in layers not exceeding 300 mm preferably by at least si...