re grate pultruded grating - relinea · e. all pultruded structural shapes shall be further...

Re-Grate Pultruded Grating

14 Crosshill Road, Crumlin, Co. Antrim, Northern Ireland

Re-Grate Pultruded Grating

Re-Grate GRP Pultruded grating is made up of a 70% glass to 30% resin ratio, and encompasses twice the stiffness of Re-Grid Moulded Grating as it allows it to span greater distances. The uni-directional strength of our Re-Grate Pultruded grating allows it to withstand a high load capacity.

However, if cutting into Re-Grate is required for pipework, it would be more beneficial to use Re-Grid moulded grating, as its bi-directional strength will be able to withstand this extraction.

TYPE DEPTH (MM)

Bar width (MM)

STANDARD PANEL SIZE

(MM)

OPEN AREA

APPROX. WEIGHT

(KG/ M2 )

STANDARD

SURFACE

STANDARD COLOURS

Re-Grate

I 6038 38.1 15.2 3660 x 1220 60 15.8 Grit Yellow &

Grey

Re-Grid

3038 30 15.2

3000 x 1000

3660 x 1220 40 22.5 Grit Yellow &

Grey

Re-Grid

3838 38 25.4

3000 x 1000

4038 x 1000

3660 x 1220

50 16.6 Grit Yellow & Grey

Re-Grate Pultruded Grating Information


Load Table - Uniform

*Deflections in mm

Span Type Depth Uniform Loading (kN/m²)

3.92 7.48 11.76 15.69 19.61 29.42 39.23 58.84 78.45

305 GRATE I 6038 38.1 0.01 0.03 0.04 0.06 0.07 0.1 0.14 0.21 0.28

GRATE I 4038 38.1 0.01 0.02 0.03 0.04 0.05 0.07 0.09 0.14 0.18

457 GRATE I 6038 38.1 0.06 0.13 0.19 0.26 0.32 0.49 0.65 0.97 1.3

GRATE I 4038 38.1 0.04 0.09 0.13 0.17 0.22 0.32 0.43 0.65 0.86

610 GRATE I 6038 38.1 0.2 0.39 0.59 0.79 0.98 1.47 1.96 2.95 3.93

GRATE I 4038 38.1 0.13 0.26 0.39 0.52 0.65 0.98 1.31 1.96 2.62

762 GRATE I 6038 38.1 0.47 0.93 1.4 1.87 2.33 3.5 4.66 - -

GRATE I 4038 38.1 0.31 0.62 0.93 1.24 1.55 2.33 3.11 - -

914 GRATE I 6038 38.1 0.94 1.87 2.81 3.74 4.68 7.02 - - -

GRATE I 4038 38.1 0.62 1.25 1.87 2.49 3.12 4.68 6.24 - -

1067 GRATE I 6038 38.1 1.7 3.4 5.1 6.8 - - - - -

GRATE I 4038 38.1 1.13 2.27 3.4 4.53 5.67 - - - -

1219 GRATE I 6038 38.1 2.86 5.73 8.59 - - - - - -

GRATE I 4038 38.1 1.91 3.82 5.73 7.63 - - - - -

1372 GRATE I 6038 38.1 6.37 8.5 17 - - - - - -

GRATE I 4038 38.1 3.01 6.02 9.03 - - - - - -

1524 GRATE I 4038 38.1 6.88 - - - - - - - -

Engineering Specification

Part 1: General

1.1 Scope of Work

The CONTRACTOR shall furnish, fabricate (where necessary), and install all fibreglass reinforced plastic (GRP) items, with all appurtenances, accessories and incidentals necessary to produce a complete, opera-ble and serviceable installation as shown on the Contract Drawings and as specified herein, and in accord-ance with the requirements of the Contract Documents.

1.2 References

The publications listed below (latest revision applicable) form a part of this specification to the extent referenced herein. The publications are referred to within the text by the designation only.

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) Test Methods:

• ASTM D 635 - Rate of Burning and/or Extent and Time of Burning of Self-Supporting Plastics in a Horizontal Position.

• ASTM D 732 - Shear Strength of Plastics by Punch Tool

• ASTM E 84 - Surface Burning Characteristics of Building Materials


1.3 Contractor Submittals

a. The CONTRACTOR shall furnish shop drawings of all fabricated gratings and accessories in accord-ance with the provisions of this Section.

b. The CONTRACTOR shall furnish manufacturer's shop drawings clearly showing material sizes, types, styles, part or catalog numbers, complete details for the fabrication of and erection of compo-nents including, but not limited to, location, lengths, type and sizes of fasteners, clip angles, mem-ber sizes, and connection details.

c. The CONTRACTOR shall submit the manufacturer’s published literature including structural design data, structural properties data, grating load/deflection tables, corrosion resistance tables, certifi-cates of compliance, test reports as applicable, concrete anchor systems and their allowable load tables, and design calculations for systems not sized or designed in the contract documents.

d. The CONTRACTOR shall submit sample pieces of each item specified herein for acceptance by the ENGINEER as to quality and color. Sample pieces shall be manufactured by the method to be used in the WORK.

1.4 Quality Assurance

a. Manufacturer shall offer a 3 year limited warranty on all GRP products against defects in materials and workmanship.

b. Manufacturer shall be certified to the ISO 9001-2000 standard.

1.5 Product Delivery and Storage

a. Delivery of Materials: Manufactured materials shall be delivered in original, unbroken pallets, packages, containers, or bundles bearing the label of the manufacturer. Adhesives, resins and their catalysts and hardeners shall be crated or boxed separately and noted as such to facilitate their movement to a dry indoor storage facility.

b. Storage of Products: All materials shall be carefully handled to prevent them from abrasion, crack-ing, chipping, twisting, other deformations, and other types of damage. Store items in an enclosed area and free from contact with soil and water. Store adhesives, resins and their catalysts and hardeners in dry indoor storage facilities between 70 and 85 degrees Fahrenheit (21 to 29 degrees Celsius) until they are required.


Part 2: Products

2.1 General

a. All GRP items furnished under this Section shall be composed of fibreglass reinforcement and resin in qualities, quantities, properties, arrangements and dimensions as necessary to meet the design requirements and dimensions as specified in the Contract Documents.

b. Fibreglass reinforcement shall be a combination of continuous roving, continuous strand mat, and surfacing veil in sufficient quantities as needed by the application and/or physical properties required.

c. Resins shall be {VINYL ESTER or ISOPHTHALIC - choose one} with chemical formulations as neces-sary to provide the corrosion resistance, strength and other physical properties as required.

d. All finished surfaces of GRP items and fabrications shall be smooth, resin-rich, free of voids and without dry spots, cracks, crazes or unreinforced areas. All glass fibers shall be well covered with resin to protect against their exposure due to wear or weathering.

e. All pultruded structural shapes shall be further protected from ultraviolet (UV) light with 1) integral UV inhibitors in the resin and 2) a synthetic surfacing veil to help produce a resin rich surface.

f. All GRP products shall have a tested flame spread rating of 15 or less per ASTM E-84 Tunnel Test. Gratings shall also have a tested burn time of less than 30 seconds and an extent of burn rate of less than or equal to 10 millimeters per ASTM D635.

g. All grating clips shall be manufactured of Type 316SS (stainless steel).

2.2 Pultruded Open Grating

a. Manufacture: Grating components shall be high strength and high stiffness pultruded elements having a maximum of 70% and a minimum of 60% glass content (by weight) of continuous roving and continuous strand mat fibreglass reinforcements. The finished surface of the product shall be provided with a surfacing veil to provide a resin rich surface which improves corrosion resistance and resistance to ultraviolet degradation. Bearing bars shall be interlocked and epoxied in place with a two piece cross rod system to provide a mechanical and chemical lock. Cross rods should be below the walking surface of the grating. Gratings with cross rods that are flush with the walking surface are excluded.

b. Non-slip surfacing: Grating shall be provided with a quartz grit bonded and baked to the top sur-face of the finished grating product.

c. Fire rating: Grating shall be fire retardant with a tested flame spread rating of 25 or less when test-ed in accordance with ASTM E 84. Manufacturer may be required to provide certification of ASTM E84 test on grating panels from an independent testing laboratory. Test data shall be from full scale testing of actual production grating, of the same type and material supplied on the project. Test data performed only on the base resin shall not be acceptable.

d. Resin system: The resin system used in the manufacture of the grating shall be {VEFR or ISOFR - choose one}. Manufacturer may be required to submit corrosion data from tests performed on actual grating products in standard chemical environments. Corrosion resistance data of the base resin from the manufacturer is not a true indicator of grating corrosion resistance and shall not be accepted.

e. Color: Grey or Yellow.

f. Depth: 38 deep load bars with a tolerance of plus or minus 0.8 mm.

g. Mesh Configuration: 38mm load bar spacing, 152 mm tie bar spacing on centers.

h. Load Deflection: Grating shall meet manufacturers’ published safe recommended loadings.

i. Substitutions: Other products of equal strength, stiffness, corrosion resistance and overall quality may be submitted with the proper supporting data to the engineer for approval.


2.3 Grating Fabrication

a. Measurements: Grating supplied shall meet the minimum dimensional requirements as shown or specified. The Contractor shall provide and/or verify measurements in field for work fabricated to fit field conditions as required by grating manufacturer to complete the work. Determine correct size and locations of required holes or cutouts from field dimensions before grating fabrication.

b. Layout: Each grating section shall be readily removable, except where indicated on drawings. Man-ufacturer to provide openings and holes where located on the contract drawings. Grating supports shall be provided at openings in the grating by contractor where necessary to meet load/deflection requirements specified herein. Grating openings which fit around protrusions (pipes, cables, machinery, etc.) shall be discontinuous at approximately the centerline of opening so each section of grating is readily removable.

c. Sealing: All shop fabricated grating cuts shall be coated with vinyl ester resin to provide maximum corrosion resistance. All field fabricated grating cuts shall be coated similarly by the contractor in accordance with the manufacturer's instructions.

d. Hardware: Type 316 stainless steel hold-down clips shall be provided and spaced at a maximum of four feet apart with a minimum of four per piece of grating, or as recommended by the manufac-turer.

3.1 Inspection

Shop inspection is authorized as required by the Owner and shall be at Owner's expense. The fabricator shall give ample notice to Contractor prior to the beginning of any fabrication work so that inspection may be provided. The grating shall be as free, as commercially possible, from visual defects such as for-eign inclusions, delamination, blisters, resin burns, air bubbles and pits.

3.2 Installation

Contractor shall install gratings in accordance with manufacturers’ assembly drawings. Lock grating pan-els securely in place with hold-down fasteners as specified herein. Field cut and drill fibreglass reinforced plastic products with carbide or diamond tipped bits and blades. Seal cut or drilled surfaces in accord-ance with manufacturer's instructions. Follow manufacturer's instructions when cutting or drilling fibre-glass products or using resin products; provide adequate ventilation.

Part 3: Execution


Data Sheet

SECTION 1

Product and Company Identification

Emergency phone number

Product

PPE

+44 (0) 28 9447 0010

Pultruded Grating manufactured in Isophthalic or Vinyl Es-ter fire retardance resin.

Refer to MSDS Section 8, Control Measures

SECTION 2

Chemical Ingredients

Chemical Component

Glass Reinforced Plastic

Polymerized Resin

Fiberglass Strand

Silica Sand

Percentage

N/A

Grating 25 to 15 Plate 50—55

Grating 70 to 75 Plate 35—55

10 – 15

SECTION 3

Physical & Chemical

Properties

Boiling Point

Vapour Pressure

Vapour Density

Melting Point

Evaporation Rate

Solubility in Water

Appearance and Odour

Measurement

N/A

N/A

N/A

N/A

N/A

None

Various coloured meshes and solid shapes. Low to no odour

SECTION 4

Fire and Explosion Data

Flash Point

Flammable Limits

Extinguishing Media

Special Firefighting Procedures

Unusual fire & explosion hazards

LEL

N/A

N/A

Water, Foam Type A, B or C extinguishers

Use Self-Contained Breathing Apparatus (SCBA) with full face op-erated in pressure mode

Burning FRP creates a complex mixture of solid, liquid, particulate and gases. Carbon Monoxide and other organic compounds may be given off

N/A

N/A

SECTION 5

Reactivity Data

Stability

Conditions to Avoid

Incompatibility

Hazardous Decomposition or By Products

Hazardous Polymerization

Stable

Sources of ignition, sparks or flames, extremely high temperatures

Strong oxidising acid

N/A

Will not occur


SECTION 6

Health Hazard Data

Routes to Entry

Health Hazards

Carcinogenicity Signs & Symptoms of Expo-sure

Medical Conditions Generally Aggravated by Exposure

Emergency and First Aid Procedures

Inhalation—X Skin—X Ingestion—X

Dust from cutting may act as a mechanical irritant to skin, eyes and upper respiratory system. Vapours or products of thermal degrada-tion generated by cutting or grinding may aggravate or cause respir-atory conditions.

NTP – N/A IARC Monographs – N/A OSHA – N/A

Temporary Irritation and itching to skin or eyes. Scratchiness or burning of the nose and/or throat if exposed to large amounts of airborne dust from cutting or machining.

Chronic Dermatitis or respiratory conditions

Wash skin well without rubbing. For eyes, use a sterile solution and flood the eye area. Change clothing after exposure. Apply antiseptic

SECTION 7

Spill or Leak Procedures

Steps to be taken in case material is released or spilled

Water Disposal Method

Other Precautions

No material is released in the product’s solid form. However, when cutting, grinding or machining, if airborne dust is generated, the wearing of respirators is recommended. Control and collect any dust. Place in sturdy containers for proper disposal.

Control and collect any dust generated in sturdy containers to pre-vent dispersal. Dispose of in accordance with all local and govern-ment regulations. Generally the dust is not considered a hazardous waste.

SECTION 8

Control Measures

Respiratory Protection Ventilation

Protective Gloves

Eye Protection

Other Protective Equipment

Work Hygienic Practices

Approved for dusts and mists not less than 00.1mg/m3

Mechanical dust collector with local exhaust recommended at point of generation of any dust due to cutting or grinding.

Wear gloves when handling product to prevent cuts, scratches or abrasions

Wear protective eye wear with side shields or ventilated goggles when cutting or grinding.

Long sleeve shirts with closed collars, long trousers or protective clothing may be worn to prevent dust exposure when cutting or grinding product

Use personal protection equipment to minimize skin, respiratory and eye exposure to dust and fumes when cutting or grinding prod-uct. Wash all exposed skin areas thoroughly after cutting or grinding. Launder clothing separately and frequently to prevent skin expo-sure.

We believe that the above information is valid and reliable. The information, however, is provided without any representation of warranty, express or implied regarding the accuracy of correctness. The conditions of methods of handling, storage, use, cutting, grinding, disposal, or any other use of the product are beyond our control. For this and other reasons, we do not assume responsibility and expressly disclaim liability for loss, damage or expense arising out of or in any way connected with the handling, storage, use, cutting, grinding, disposal or any other use of this product.

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