Commerical Paving Specification


UrbanStone Commercial Paving Specification

Material Standards

 

    Cement
    Cement shall comply with AS 3972 - 1991 Portland and Blended Cements.

    Aggregates
    Aggregates shall comply with AS 2758.1 - 1985 Concrete Aggregates.

    Admixtures
    Admixtures shall comply with AS 1478 - 1992 Chemical Admixtures for Concrete.

    Pigments
    Pigments shall comply with BS 1014 Pigments for Portland Cement & Portland Cement Products.

    Water
    Water should be free of injurious quantities of material harmful to concrete.

Back to top



Paving Units

Colour

Specify UrbanStone Commercial colours stating colour name, mix code and unit size. Current standard colours include:

Colour Name Mix Code
1. Gunmetal 206
2. Silvergrey 100
3. Granite Cream 789
4. PCC Grey 700
5. New Amber 209
6. Topaz 461
7. Ivory 510
8. Granite Bronze 748
9. Ochre 702
10. Casino Grey 924
11. Golden Gunmetal 777

Back to top


Pigmentation & Aggregate

 

Pigmentation and surface aggregate shall be uniform throughout the full thickness of the paving unit.

Back to top


Surface finish

 

Surface Finish is to be specified as follows:

  1. Shotblast
  2. Milled
  3. Honed Grit 120
  4. Honed/Shotblast
  5. Polished

If a unit is larger than 600 x 600 a Sandblast finish will replace the Shotblast Finish. The exposed aggregate content of the surface should be a minimum of 80 percent and no aggregate should have more than 30 percent of its grading protruding above the surface of the cement matrix.

Back to top


Dimensions

  1. Thickness
    The thickness of any unit should be within +/- 3mm of the designated thickness, except where honing or polishing is specified as this may reduce the paving nominal thickness.
  2. Length and Width
    The length and width of any unit should be no greater than the overall nominal dimensions and within 1.5mm less than the stated nominal dimensions.
  3. Draw.
    Units should be straight-sided with zero taper.
  4. Flatness and Bowing
    The maximum deviation from a 350mm straight edge, placed in any central position on the wearing surface of each individual unit, should not exceed 3.5mm.
  5. Chamfer
    The arises of the off form paving unit should have a rounded edge with a radius not exceeding the maximum aggregate size used (nominally 4.5mm radius) prior to secondary or tertiary treatment (ie shotblasting or honing).
  6. Compressive Strength
    The minimum twenty-eight day characteristic strength shall be >35Mpa
  7. Breaking Load
    The minimum breaking load of paving units sampled from lots shall be 4kN for 40mm thick units and 5kN for 60mm thick units.
  8. Slip Resistance
    Slip Resistance of new shotblast product shall have a classification of ‘V’ (very low risk of slip when wet).
    Slip Resistance of new milled product shall have a classification of ‘W’ (low risk of slip when wet).
    Slip Resistance of new honed product shall have a classification of ‘X’ (moderate risk of slip when wet).
    Slip Resistance of new honed/shotblast product shall have a classification of ‘W’ (low risk of slip when wet).
  9. Abrasion Resistance
    The Mean Abrasion Index shall be determined in accordance with AS/NZS 4456.9. - Masonry Units and Segmental Pavers - Method of Test, and will be no greater than 3.0 for units to be installed in high volume pedestrian malls.

Back to top



UrbanStone Commercial Furniture and Landscape Accessories Specification

Material Standards

    Cement
    Cement shall comply with AS 3972 - 1991 Portland and Blended Cements.

    Aggregates
    Aggregates shall comply with AS 2758.1 - 1985 Concrete Aggregates.

    Admixtures
    Admixtures shall comply with AS 1478 - 1992 Chemical Admixtures for Concrete.

    Pigments
    Pigments shall comply with BS 1014 Pigments for Portland Cement & Portland Cement Products.

    Water
    Water should be free of injurious quantities of material harmful to concrete.

Back to top



Furniture and Landscaping Units

 

Colour

Specify UrbanStone Commercial colours stating colour name and mix code. Current standard colours include:


Colour Name Mix Code
1. Gunmetal 206
2. Silvergrey 100
3. Granite Cream 789
4. PCC Grey 700
5. New Amber 209
6. Topaz 461
7. Ivory 510
8. Granite Bronze 748
9. Ochre 702
10. Casino Grey 924
11. Golden Gunmetal 777

Back to top



 

Pigmentation and Aggregate

Pigmentation and surface aggregate shall be uniform throughout the full thickness of the precast unit.

Back to top



 

Surface Finish

Surface Finish is to be specified as follows:

  1. Sandblast
  2. Milled
  3. Honed Grit 120
  4. Polished

Back to top



 

Dimensions

  1. Thickness
    The thickness of any unit should be within +/- 5mm of the designated thickness.
  2. Length and Width
    The length and width of any unit should be within +/-5mm of the designated dimensions.
  3. Draw
    Units should have minimal draw to allow for stripping.
  4. Compressive Strength
    The minimum twenty-eight day characteristic strength shall be 40Mpa.

Back to top



 

Chemical Coatings

  1. Anti-Graffiti
    A gloss or matt finish anti graffiti coating should be specified, if required.
  2. Water proof
    A transparent water proof coating should be specified, if required.

Back to top



 

Shop Drawings

Precast units will only be manufactured after the client has approved detailed shop drawings. Note: To help in ensuring the accuracy of quotations it is advisable to submit as much detail as possible in the form of a sketch or drawing. Remember, the less information available the slower the process will be.

Back to top



 

Samples

Samples of colours and finishes are available for the clients approval. Precast units will only be manufactured after the client has approved the colour and finish to be supplied.

Note: If your project has a short lead time allow sufficient time for sample approval. It is better to get precisely what you want, the first time your request is addressed.

Back to top



 

Delivery

Delivery to site can be on pallets if size permits or else it will be delivered directly from an appropriate delivery vehicle. Always ensure the matter of how the delivery is to be made is resolved prior to delivery as there may be a need for a crane on site, or other lifting devices.

Back to top