CodeChronicle

OBC 2006 Division B

9.16.4.

Version 0 — in force 31 December 2006

In force
Verified · covered Verified against the 2006-12-31–2007-04-01 consolidation, whose range covers the query date. How to read this

Provenance

OBC 1997 · continues from 9.16.4. — Pro

Base · O. Reg. 350/06 · ext← current

Original — base regulation

OBC 2012 · continues as 9.16.4. — Pro

9.16.4. — Concrete

Content not available for this version.

9.16.4.1. — Surface Finish

(1) The finished surface of concrete floor slabs shall be trowelled smooth and even.

(2) Dry cement shall not be added to the floor surfaces to absorb surplus water.

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9.16.4.2. — Topping Course

(1) Where a topping course is provided for a concrete floor slab, it shall consist of 1 part cement to 2.5 parts clean, well graded sand by volume, with a water/cement ratio approximately equal to that of the base slab.

(2) When concrete topping is provided it shall not be less than 20 mm thick.

Text · e-Laws consolidated snapshot

9.16.4.3. — Thickness

(1) Concrete slabs shall be not less than 75 mm thick exclusive of concrete topping.

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9.16.4.4. — Bond Break

(1) A bond-breaking material shall be placed between the slab and footings or rock.

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9.16.4.5. — Compressive Strength

(1) Where dampproofing is not provided the concrete used for floors-on-ground shall have a compressive strength of not less than 25 MPa after 28 days.

(2) Where dampproofing is provided as described in Article 9.13.2.7., the concrete used for floors-on-ground shall have a compressive strength of not less than 15 MPa after 28 days.

Text · e-Laws consolidated snapshot