Renovation/ Construction of Industrial Technology Building in Dipolog Campus

GENERAL SPECIFICATIONS

PROJECT : Renovation/ Construction of Industrial Technology Building in Dipolog Campus”

LOCATION: JRMSU – Dipolog Campus, Turno, Dipolog City

OUTLINE SPECIFICATIONS

I. SITE WORK

A. WORK INCLUDED

1. Staking out of building of lines, grades and benchmarks

2. All excavation work including all necessary shoring, bracing and drainage of storm water from site.

3. All backfilling and grading, removal of excess materials form site.

4. Protection of property, work and structures, workmen and other people from damage and injury.

B. LINES, GRADE AND BENCHMARKS

1. Stake out accurately the lines of the building of the other structures included in the contract and establish grades therefore, after which secure approval by the Architect before any excavations work is commended.

2. Erect basic batter boards and basic reference marks at such places where they will not be disturbed during the construction of the foundations.

C. EXCAVATION

1. Structural Excavations – Excavations shall be to the depths indicated bearing values excavations for footings and foundations carried below required depths shall be filled with the concrete and bottom of such shall be level. All structural excavations shall extend a sufficient distance from the walls and footings to allow for proper erection and dismantling of forms, for installations of service and for inspection. All excavations shall be inspected and approved before pouring any concreted; laying underground services for placing select fill materials. The contractor shall control the grading in the vicinity of all excavated area to prevent surface drainage running into excavations. Water, which accumulates in excavated areas, shall be removed by pumping before fill or concrete in places therein.

D. FILLING AND BACKFILLING

1. After forms have been removed from footings, piers, foundations walls, etc. and when concrete work is hard enough to resist pressure resulting from fill, back filing may be done. Materials excavated may be used for backfilling. All filling shall be placed in s not exceeding six (6) inches in thickness, each being thoroughly compacted and rammed by wetting, tamping, rolling.

E. PLACING AND COMPACTING FILL

1. Common Fill – shall be approved site – excavated materials free from roots stumps and other perishable or ionable matter.

2. Select Fill – shall be placed where indicated and shall consist of crushed gravel, crushed rock or a combination thereof. The material shall be free from adobe, vegetable matters and shall be thoroughly tamped after placing.

3. Before placing fill materials, the surface upon which it will be placed shall be cleared of brush roots, vegetable matter and debris scarified and thoroughly wetted to ensure good bonding between the ground.

F. DISPOSAL OF SURPLUS MATERIALS

1. Any excess materials remaining after completion of the earthwork shall be disposed of hauling and spreading nearby spoil areas designated by the OWNER. Excavated materials deposited in spoil areas shall be graded in uniform surface.

II. CONCRETE AND REINFORCED CONCRETE

A. GENERAL

1. Unless otherwise specified herein, concrete work shall conform to the requirements of the ACI Building Code. Full cooperation shall be given other trades to install ded items. Before concrete is placed, ded items shall have been inspected and tested for concrete aggregates and other materials shall have been done.

B. MATERIALS

1. Unless otherwise specified herein, concrete work shall conform to the requirements of the specification for Portland Cement (ASTM C-150)

2. Water used in mixing concrete shall be clean and free from injurious amounts of oils, acids, alkaline, organic materials or other organic substance that may be deleterious to concrete or steel.

3. Fine Aggregates shall consist of hard, tough, durable and coated particles. The shape of the particle shall be generally rounded or cubicle and reasonably free from flat or elongated particles. The stipulated percentages of fines in the sand shall be obtained either by the processing of natural sand or by production of a suitably graded manufactured sand.

4. Course Aggregates shall consist of gravel, crushed gravel or rock or a combination of gravel and rock, coarse aggregates shall consist of hard, tough durable, clean and uncoated particles. The sizes of coarse aggregates to be used in the various parts of the work shall be in accordance with the following:

Size – 3/4 “ for all concreting work.

5. Reinforcing Bars shall conform to the requirements of the ASTM standard specifications for Billet Steel Bars for concrete reinforcement (A15-625) and to specifications for minimum requirements for the deformed steel bars for concrete reinforcement (A305-56)

All secondary ties, such, as stirrups, spirals and inserts is deformed bars. The main reinforcing bars shall be as follow:

No. 5 (5.8) – 16mm fy – 40,000 psi

No. 4 (1.2 “) 12mm fy – 40,000 psi

No. 3 (3/8 “) 10mm fy – 40,000 psi

C. PROPORTIONING AND MIXING

1. Proportions of all materials entering into the concrete shall be as follows:

Cement Sand Gravel

Class “A” - 1 : 2 : 4

2. Class of Concrete – concrete shall have a 28-day cylinder strength of 3,000.00 Psi, for all concrete work, unless otherwise indicated in the plans.

3. Mixing – concrete shall be machine mixed. Mixing shall begin within 30 minutes after the cement has been added to the aggregates. In the absence of a concrete mixer, manual mixing is allowed.

D. FORMS

1. GENERAL – Forms shall be used wherever necessary to confine the concrete and shape it to the required lines, or to insure the concrete of contamination with materials caving from adjacent, excavated surfaces. Form shall have sufficient strength to withstand the pressure resulting from placement and vibration of the concrete and shall be maintained rigidly in correct position. Forms shall be sufficiently tight to prevent loss of mortar form the concrete. Forms for exposed surfaces against which backfill is not placed shall be lined with a form grade plywood.

2. Cleaning and oiling of forms – Before placing the concrete, the contact surfaces of form shall be cleansed of encrustations of mortar, the grout or other foreign materials and shall be coated with commercial form oil that will effectively prevent sticking and will not stain the concrete surfaces.

3. Removal Forms – forms shall be removed in a manner which will prevent damage to the concrete. Forms shall not be removed without approval. Any repairs of surface imperfections shall be performed at once and airing shall be started as soon as the surface is sufficiently hard to permit it without further damage.

E. PLACING REINFORCEMENT

1. GENERALS – Steel reinforcement shall be provided as indicated, together with tall necessary wire ties, chairs, spacers, supported and other devices necessary to install and secure the reinforcement properly. All reinforcement, when placed shall be free from loose flaky rust and scale, oil grease, clay and other coating and foreign substances that would reduce or destroy its bond with concrete.

2. Reinforcement shall be placed accurately and secured in place by use of l or concrete supports, spacers and ties. Such supports shall be sufficient strength to maintain the operation. The supports shall be used in such manner that the will not exposed or contribute in anyway, to the discoloration or deterioration of the concrete.

F. CONVEYING AND PLACING CONCRETE

1. Conveying – Concrete shall be conveyed from mixer to forms as rapidly as practicable, by methods which will prevent segregation or loss of ingredients.

There will be no vertical drop greater than 1.5 meters except where suitable equipment is provided to prevent segregation and where specifically authorized.

2. PLACING – Concrete shall be worked readily into the corners and angles of the forms and around all reinforcement and ded items without permitting the materials to segregate. Concrete shall be deposited as close as possible to its final position in the forms so that flow within the mass does not exceed two (2) meters and consequent segregation is reduced to a minimum near forms or ded items or elsewhere as directed, the discharge shall be controlled that the concrete may be effectively compacted into horizontal s not exceeding 30 centimeters in depth within the maximum lateral movement specified.

3. Time interval between mixing and placing. Concrete shall placed before initial set has occurred and before it has contained its water content for more than 45 minutes.

4. Consolidation of Concrete – Concrete shall be consolidated with the aid of Mechanical vibrating equipment and supplemented by hand spading and tamping. Vibrators shall not be inserted into lower coursed that have commenced initial set; and vibrator shall not disturb reinforcement ded in concrete beginning to set or already set. Consolidation around major ded parts shall be by hand spading and tamping and vibrations shall not be used.

5. Placing concrete through reinforcement. In placing concrete through reinforcement, care shall be taken that no segregation of the coarse aggregate occurs. On the bottoms and slabs, where the congestion of steel near the forms makes placing difficult, a of mortar of the same cement sand ratios as used in concrete shall be first deposited to cover the surface.

G. CURING

1. GENERAL: All concrete shall be moist cured for a period not less than seven (7) consecutive days by an approved method or combination applicable to local conditions.

2. Concrete slabs on Fill. The Concrete slabs on fill shall be laid on a prepared foundation consisting of sub grade and granular fill with thickness equal to the thickness of overlaying slab except as indicated otherwise.

III. MASONRY WORKS

A. MATERIALS

1. Concrete Hollow Blocks shall have a minimum face thickness of 1 “ (0.025). Nominal size shall be 6” x 8” x 16” and 4” x 8” x 16” minimum comprehensive

Strength shall be as follows:

Class C – 300 psi

All units shall be stoned for a period of not less than 2 days (including curing period) and shall not be delivered to the job site prior to that time unless the strengths equal or exceed those mentioned in these specifications.

2. Wall Reinforcement shall be 10mm steel bars.

3. Sand shall be river sand, washed, well screened, clean, hard, sharp siliceous, Free from loam, silt or other impurities, composed of grains of varying sizes within the following limits:

Sieve No. Percent

9 “ Passing 100

16 “ Retained 5

100 Retained 97

4. Cement shall be standard Portland Cement ASTM C – 150 -68

5. Mortar – Mix Mortar from 3 to 5 minutes in such quantities as needed for immediate use. Tampering will not be permitted if mortar stiffens because of premature setting. Discard such materials as well as those which have not been used within one hour after mixing.

Proportioning: Cement mortar shall be one (1) part Pozzolan Cement and two (2) parts washed sand by volume but not more than one (1) part Pozzolan cement and three (3) parts washed sand by volume.

B. ERECTION

1. All masonry shall be laid plumb, true to line, with level and accurately spaced courses and with each course breaking joint with the source below. Bond shall be kept plumb throughout: corners and reveals shall be plumb and true. Units with greater than 12 percent absorption shall be wet before laying. Work required to be built in with masonry, including anchors, wall plugs and accessories, shall be built in as the erection process.

2. Masonry Units. Each course shall be solidly bedded in Portland cement mortar. All units shall be damp when laid units shall be showed into place not laid, in a full bed of unforrowed mortar. All horizontal and vertical points shall be completely filled with mortar intersections. No cells shall be left open in face surfaces. All cells shall be filled up with mortar for exterior walls. Units terminating against beam or slab soffits shall be wedged tight with mortar. Do not lay cracked or defected block.

3. Lintels’ shall be of concrete and shall be enforced as shown on the drawings.

Lintels shall have a minimum depth of 0.20 (8 “) and shall be extend at least 0.20 (8 “) on each side of opening.

C. WORKMANSHIP AND INSTALLATION

1. PLASTERING: Clean and evenly wet surfaces. Apply scratch coat with sufficient force to form good keys. Cross scratch coat upon attaining its initial set up; keep damp. Apply brown coat after scratch coat has set at least 24 hours after scratch coat application. Lightly scratch brown coat; keep moist for 2 days; allow drying out. Do not apply finish until brown coat has seasoned for 7days. Just before applying coat, wet brown coat again. Float finish coat to true even surface trowel in manner that will force sand particles down into plaster, with final trawling, leave surfaces varnished smooth, free from rough area, trowel marks, checks, other blemishes. Keep finish coat moist for at least 2 days: thereafter protect against rapid dying until properly thoroughly cured.

D. SCAFFOLDING

Provide all scaffolding required for masonry work, including cleaning down on completion remove.

E. VITRIFIED FLOOR TILE INSTALLATION

1. Do not start floor filing occurring in space requiring both floor and wall tile setting has completed.

2. Before spreading setting bed, establish border lines center wires with both directions to permit laying pattern with minimum of cut tiles. Lay floor without border from center line outward. Make adjustment at walls.

3. Clean concrete sub floor and moisten it without soaking. Sprinkle dry cement over surface. Spread setting bed mortar on concrete and tamp to assure good bond over the entire are then screed to smooth, level bed. Set average setting bed thickness at ¾” but never less than ½”.

F. WALL TILE INSTALLATIONS

1. Scratch coat for application as foundation coat shall be at mots ½”. While still plastic, deeply score scratch and cross scratch. Protect scratch coat and keep reasonably moist within seasoning period. Use mortar for scratch, float coats, within one hour after mxing. Retampering of partially hardened mortar is not permitted. Set scratch coat shall be cured for at least 2 days before staring tile setting.

2. Setting Wall tiles: soak wall tile thoroughly in clean water before setting. Set wall tile by toweling neat Portland cement skim coat or apply skim coat to back of each tile unit. Immediately float tile place. Make joints straight, level and perpendicular. Maintain vertical joints plumb.

IV. CARPENTRY AND JOINERY WORK

A. Quality of Lumber: Lumber shall be approved quality of the respective kinds for various parts of the work well seasoned, thoroughly dry and free from large, loose or unsound knots, sups, shakes and other imperfections impairing its strength, durability or appearance. All finishing lumber to be used shall be completely dried and shall not contain more than 14% moisture. All flooring tongue and grooved shall be kiln dried.

1. TREATMENT OF THE LUMBER

a. All concealed lumber shall be sprayed with anti-anay or bukbok liquid.

b. Surface in contact with masonry and concrete coated with creosote or equivalent.

2. DOOR CATCHES: All concealed lumber shall be well seasoned, flush type, semi-hollow core and solid core doors. All door jambs shall be Mat wood (Treated and kiln dried)

B. WORKMANSHIP

1. Execute rough carpentry in best substantial, workmen like manner, erect framing true to line, levels and dimensions, squared, aligned, plumbed, well spiced and nailed and adequately braced properly fitted using mortise and tendon joints.

2. Millwork – accurately milled to details, clean cut moldings profiles, lines, scrape sand smooth: mortise, tendon, splice, joint, block, nail, screw, bolt together, as approved in manner to allow free play of panels: avoid swelling, shrinkage, ensure work remaining in place without warping, splitting opening or joints.

Do not install millwork and case until concrete and masonry work have been cured and will not release moisture harmful to woodwork.

3. Secure work grounds; otherwise fasten in position to hold correct surfaces, lines and levels. Make finished work flat, plumb, true.

V. ARCHITECTURAL FINISHES SCHEDULE

A. FLOORING

Second floor Rooms/ Hallway - 16”x16” Unglazed ceramic floor tiles

Ground Floor Rooms - Epoxy paint Finish

T & B (Bedrooms) - 12”x12” Glazed Ceramic wall tiles

- 12”x12” Unglazed Ceramic Floor tiles

B. WALLING

All interior and exterior walls shall be semi-gloss low VOC paint finish.

C. CEILINGS

All interior ceiling shall be 4.5” thk. Fiber Cement board in light l framing system and shall be painted with flat latex interior paint.

D. DOORS

l Doors

Roll-up Doors for Ground Floor

l Doors w/ Louver for Toilets

E. WINDOWS

Use Aluminum Casement, Analok s with 6mm thick bronze glass.

F. ROOFING

Pre painted roofing sheets shall be laid with a side lap of 2 ½ corrugation and an end lap of C.30 meters.

Start each course in such a manner that side lap in adjoining course shall be staggered.

G. ELECTRICAL

1. All electrical works shall be done in accordance with the rules and regulations of the “National Electric Code”

2. Sizes of wires shall be as indicated in the drawings.

3. No wires smaller that No. 12 AWG shall be used.

VI. PROTECTION AND SAFETY REQUIREMENTS FOR CONSTRUCTION AND DEMOLITION

Pursuant to Sections 1101 to 1108 of the National Building Code (PD 1096), the following rules and regulations shall provide minimum standards of safety and protection for construction and/or demolition of building structures. The provisions of this Rule shall apply to all work in connection with the construction, alteration, repair, renovation, removal and demolition of building structures.

1.1 The construction, erection, alteration and removal of scaffolds and the application, installation and settings up of safeguards and equipment devices shall be done by skilled workmen under the supervision of a person qualified by experience or training for such work.

1.2 A safeguard, device or piece of equipment which is unsafe shall be reported to the superintendent or foreman, who shall take immediate steps to remedy such condition or remove such safeguard, device or equipment.

1.3 Scaffolds, ladders, stairs, fuel gas tanks and other devices or equipment or any falling within the scope of this rule shall be maintained in a good, safe and usable condition as long as in use.

1.4 No scaffolds, ladders, railings or other devices or equipment or any part thereof required by this Rule shall be removed, altered or weakened when require by the work unless so ordered by the superintendent or foreman in charge.

1.5 Scaffolds, temporary floors, ramps, stairway landings, stair treads and all other walkway surfaces shall be kept fee from protruding nails and splinters. They shall kept free form unnecessary obstructions so that the workers may move about safely.

1.6 Protruding nails and tire wire ends shall be removed, hammered in or bent in a safe condition.

1.7 Electric Lines, moving ropes an cable gear, or similar hazards with which a worker might come in contact shall be encased or protected.

1.8 No person, firm or corporation, either personally or through an employee or agent of another, shall operate or remove any machinery, equipment, material, scaffolds, or materials in process of assembly closer than 5.00 meters to any energized high voltage overhead electrical facilities except with the approval of the electrical inspector.

1.9 All workmen on any demolition job shall be furnished with and be required to wear industrial safety helmets.

1.10 Construction sheds and tool boxes shall be so located as to protect workers form dangerous falling wall and other falling s.

1.11 The Building Official may permit the use of alternative methods and/or devices depending on local conditions provided that the minimum standard of safety sought to be achieved under this Rule is not jeopardized.