Specifications (Northern Railway)


We are committed to ensure quality of construction and various materials being used for out Engg. Works.

1. Specifications of Common materials:

The specification of materials being used in general are displayed at different worksites(including zonal works) in colonies in the form of Transparency Boards. For some of the materials specifications required are as under:-

1.1 White washing/Colour washing, Distempering/Painting(Oil bound and cement based)

i) White Washing/Colour washing

No. of coats - Two or more

Material used - Lime, Blue, Colour Stainer

Brand - LOTUS, DEHRADUN, SATNA

ii) Distempering:

No. of coats - Two or more

Material used - Distemper or different colours

Brand Name - BERGER,ASIAN PAINTS,DULEX,NEROLAC

iii) Painting:

No. of coats - Two

Material used - Synthetic enamel paint of different colour

Brand Name - BERGER,ASIAN PAINTS,DULEX,NEROLAC

iv) Cement based paint:

No. of coats - Two

Material used - Cement based paint

Brand Name - SNOWCEM,SNOWCEM PLUS,DUROCEM, SEACEM, SSM

v) Plastic emulsion paint:

No. of coats - Two

Material used - Emulsion paint of different colour

Brand Name - BERGER, ASIAN PAINTS, DULEX

vi) Exterior emulsion paint:

No. of coats - Two

Material used - Weather coat

Brand Name - BERGER, ASIAN PAINTS, DULEX

COAT- One coat will be considered as applying brush in both directions i.e. left and right as well as applying brush in up and down direction uniformly.

1.2

i)Cement Flooring: Thickness 50 mm, 40mm

Cement flooring 1:2:4 ( 1 cement: 2 sand:4 coarse aggregate) is laid on subgrade of cement concrete sub grade 1;4:8 (1 cement:2 sand: 4coarse Aggregate) or Dry concrete (Brick aggregate/stone aggregate 40 mm size).

ii) PVC:

Thickness - 2 mm, 2.5 mm, 3mm

iii) Ceramic Tiles: (WALL TILES)

Ceramic tiles in wall are laid on cement mortar 12 mm thick with 1:3 cement mortar (1 cement: 3 fine sand)

Size - 200 x 200 mm, 200x300mm,400x400mm and

300 mm x 450 mm

Thickness - 6 to 8 mm

Brand Name- SOMANY, ORIENT,BELL,NITCO,KAJARIA

iv) Ceramic Tiles (WALL TILES)

Size - 600 x 600 mm and above

Thickness - 10 to 12 mm

Brand Name- SOMANY, ORIENT,BELL,KAJARIA

v) Vitrified Tiles (Somany Floor Tiles)

Vitrified tiles in flooring are laid on cement mortar average 10 mm thick and minimum 5 mm with 1:3 cement ( 1 cement: 3 five) sand mortar. (To attain the slope/level as per requirement of location).

Size - 600 x 600 mm and above

Thickness - 10 to 12 mm

Brand Name- SOMANY,ORIENT,BELL,RAK,RIWASA

vi) Paver Blocks:

Thickness - 40 mm, 60 mm ,80 mm

Brand Name- NITCO,MUCIWIN,TERAPRAMA,HINDUSTAN TILES.

1.3 Brick Work:

Brick work is laid in cement mortar 1:3 ( 1 cement: 3 give/coarse sand), 1:4 (1 cement 4 fine/coarse sand), 1:6 (1cement : 6 five/coarse sand) in substructure and super structure.

Plastering on old surface

Cement plastering 12mm thick is done by dismantling the old plastering and surface and applying cement mortar 1: 3 (1 cement: 3 five sand) 1:4 (1 cement: 4 five sand) and 1:6 (1 cement: 6 five sand).

Plaster on new surface

Cement plastering 12 mm thich on new surface and applying cement mortar 1:3 (1 cement: 3 five sane), 1:4 (1 cement: 4five sand) and 1:6(1 cement: 6 five sand).

Material Used:

i) Bricks

In general 2nd class bricks are being used. These should have ringing Pucca & of metallic sound when struck and of dimensions 70 cm x 11 cm x 23 cm (Non Modular) and should not break when two bricks kept together in T-shape dropped from a height of 1.50 m (5’ )

ii)Sand

Coarse sand of quality zoned II & III &

Fine Sand of quality zone IV & V

(Free from fine particles like clay, silt etc.)

1.4 Reinforced Cement Concrete or Plain Cement Concrete:

i) Sand

Coarse sand of quality zoned II & III &

Fine Sand of quality zone IV & V

((Free from fine particles like clay, silt etc.)

CURING

All cement related works should be cured for a minimum period of seven days.

1.5 Door and Window, Partition:

i) Wood Work

Frame – SAL WOOD size (75 mm X 199 mm,199 mm sectional area)

Shutter- SAL WOOD,HOLLOCK WOOD,TEAK WOOD,COUNTRY WOOD used.

ii) Flush Door: Brand Name- KIT PLY, GREEN PLY, INDIAN PLY,CENTURY Thickness 30mm, 4omm.

iii) Anodised Aluminium:

Frame- Made of Anodised Aluminium.

Shutter- Made of Aluminium, Glass, Particle Board with necessary fittings.

Brand Name ALCO, JINDAL,HINDALCO

1.6 Roof Treatment:

1. Provididng & laying water-proof treatment on roof slabs by applying after cleaning and preparation, the cement slurry mixed with Tapecrete acrylic based polymer water proofing compound (having solid content 30% + 2 pH >7) in a ratio of 2w:1(2 cement :1 water proofing compound), followed by laying of fibre glass cloth; 2nd coat of cement slurry mixed with acrylic based polymer water proofing compound and a final coat of water proofing compound brush topping having water proofing compound d,cement and c/sand @ 1:2:2 by weight complete job to be carried out as per specifications.

a. Material Used:

i) Acrylic based polymer water proofing compound

Brand Name - ZYCOSIL, TAPCRETE

ii) Fibre glass cloth

iii) Acrylic based polymer water proofing compound

Brand Name - FOSROCK, SIKA TOP.

2. Water Proofing of roofs and exposed concrete surface is done by cleaning and preparing the surface. Then the bitumen primer is applied on the surface@ 250 gms/sqm. After drying of primer for appros. 30 min 3mm ( seven ply ) the layer of membrane is laid on the existing surface and overlapping of 75mm is being done. The sealing of joints is being done by applying heating with blow lamp.

a. Material Used - Bitument Primer density 0.90 to 1.00 gms/c.c. Visiocity 20 to 100 seconds.

Brand Name - APP, Dr. FIXIT

1.7 False Ceiling:

Material Used - Gypsum Board, HPSC Board, ARMSTRONG Board, Perforrated Board etc.

HPSC Board: Brand Name : EVEREST,RAMCO,GIP

Water Supply

1.8 G.I.Pipes of various dia medium quality with blue band.

Brand Name: JINDAL, SURYA, TATA, etc.

Sectional weight of GI pipe.

Dia Plain end (Kg/M) Screwed & socket (kg/M)
15mm 1.21 1.22
20mm 1.56 1.57
25mm 2.41 2.43
40mm 3.56 3.60
50mm 5.03 5.10
100mm 12.20 12.50

1.9 Sanitary fittings

WC- Wash Basin, sinks, EWC& Flush cistern.

Make HINDWARE,CERA,PARRYWARE.

C.P.Fittings:Taps,concealed valve. Angle valve, Pillar cock,Wall mixture/W/Basin Mixture

Make: PARKO, MARC,JAQUER.

1.10 Road Work

Road Work is being done by cleaning, dressing, emoving dust of existing surface. tHen laying of Tack coat (80/20) ratio is applied followed by laying of bituminious layer in specified thickness and rolling with roller of 8/10 Tonnes

Material used - Bitument 80/20

Brand Name: - BHARAT PETROLEUM, HINDUSTAN PETROLEUM, SHALIMAR TAR PRODUCTS.

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  Source:  IRCMS Last Reviewed on:  .