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In-situ Concrete Staircase

Verified by manufacturer 8 months ago

Lazenby

Structural grade cast in-situ concrete staircase for internal use.

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Application

Suitable for internal use.

Description

Structural grade cast in-situ concrete staircase for internal use.


Features and benefits:

  • Available with a polished or textured face.
  • Surfaces sealed to reduce staining.
  • Cast to individual site requirements, available stand-alone, cantilever, exposed and stepped soffit.
  • Provide a continuation of a polished concrete floor between levels.
  • Formwork, steel and concrete all set up and installed in-situ.

General information

Color

Finish

Smooth

Guidance for specification option:

Polished.

Textured

Material

Concrete

Guidance for specification option:

C28/35 to C50 self-compacting concrete to BS EN 206-1 and BS 8500-2.

  • Cement: CEM 1 to BS EN 197-1, minimum cement content of 330 kg/m³, contains GGBS and PFA cement substitute up to 30%.
  • Aggregate: Maximum of 20–30 mm dependent on the desired effect, with 45–48% fine aggregate.
  • Additive: Water reducing admixture (WRA) or superplasticizer.

Length

Bespoke

Width

Bespoke

Height

Bespoke

Uniclass

Ss_35_10_40_42 Internal composite material stair systemsPrimary

CAWS

L30/20 Stairs

L30/270 Stairs

L30/30 Proprietary stairs

L30/310 Proprietary stairs

Specification data - Internal composite material stair systems

Treads

-

Material

Concrete.

Guidance for specification option:

C28/35 to C50 self-compacting concrete to BS EN 206-1 and BS 8500-2.

  • Cement: CEM 1 to BS EN 197-1, minimum cement content of 330 kg/m³, contains GGBS and PFA cement substitute up to 30%.
  • Aggregate: Maximum of 20–30 mm dependent on the desired effect, with 45–48% fine aggregate.
  • Additive: Water reducing admixture (WRA) or superplasticizer.

Design

As drawing.

Guidance for specification option:

Insert reference.

Manufacturer guidance

Lazenby can advise on spiral, curved or straight staircases, with or without landings.

Thickness

Guidance for specification option:

Insert requirement, 100 mm minimum.

Colour

Basalt.

Black.

Cool grey.

Cream buff.

Dark grey.

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Sealer

Gloss.

Matt.

Guidance for specification option:

Standard.

Satin.

Reinforcement

High yield, high bond bars.

Guidance for specification option:

Complying with the requirements of BS 4449 and BS 4466.

Consistence class

S3.

Chloride Ion content

CL 0.40.

Manufacturer guidance

(Chloride class).

Shrinkage

0.075%.

Manufacturer guidance

Drying shrinkage (maximum).

Finishes

Smooth.

Guidance for specification option:

Polished.

Textured.

Case studies

Portobello Staircase

Portobello Staircase

Cannon Green Staircase

Cannon Green Staircase