HARBER & DANH CONSTRUCTIONS PTY LTD

ABN 41 002 XXX XXX | Job Card & Specification Sheet

Job No: JC-2418
Date issued: 14/03/2025
Revision: B

Project	Rear access path — Wattle Street Community Centre, 14 Wattle Street, Ballarat VIC 3350
Scope of work	Form, reinforce, place and finish a concrete access path from the rear door to the existing carpark. Simple edge forms, hand placement by wheelbarrow, hand screed and broom finish.
Prepared by	S. Nguyen (Site Supervisor) \| Checked: M. Okafor (Leading Hand)
Compliance	All work to comply with the National Construction Code (NCC), relevant Australian Standards, the site SWMS and company quality procedures. Services located and marked — see site plan before excavating.

1. Dimensions & Levels

Item	Specification
Path length	12.0 m
Path width	1.2 m
Slab thickness	100 mm
Site datum	Top of existing inspection pit lid = RL 12.500
Finished path level	RL 12.450 at building line, with a cross fall of 1:100 away from the building (12 mm across the 1.2 m width)

2. Concrete Specification

Concrete grade	N25 (25 MPa at 28 days)
Slump	80 mm — do not add water on site without supervisor approval
Maximum aggregate size	20 mm
Finish	Wood float, then medium broom finish across the line of travel (slip resistance)
Curing	Keep moist for 7 days minimum. Strip edge forms no earlier than 24 hours after placement.

3. Reinforcement & Vapour Barrier

Mesh type	SL72 fabric sheet mesh
Mesh lap	Minimum 225 mm at all sheet joins, tied with tie wire
Support	Plastic bar chairs at maximum 800 mm centres
Cover — top of slab	30 mm minimum
Cover — edges (to formwork)	40 mm minimum — trim mesh where required, no mesh to touch forms
Vapour barrier	0.2 mm polyethylene membrane over compacted substrate. Lap all joints 200 mm and tape. Turn membrane up against edge forms. Patch any punctures before pour.

4. Work Sequence

Prepare and compact substrate to design level (allow for 100 mm slab thickness).
Erect edge forms to string line; peg and brace; check levels against site datum.
Install vapour barrier — lap, tape and turn up at forms.
Place SL72 mesh on bar chairs; tie laps; check edge and top cover.
Pre-pour check: clean all debris from inside forms; supervisor sign-off before ordering concrete.
Place concrete by wheelbarrow, screed to formwork and datums, wood float, broom finish.
Cure as specified; strip, denail, clean and stack formwork for reuse.

Site notes: Minimum PPE — hard hat, safety glasses, hi-vis, steel-capped boots, gloves. Long sleeves and alkali-resistant gloves when handling wet concrete. Barricade the work area and keep the pedestrian detour signage in place until the path is opened. Wash out barrows and tools only at the designated washout point — no washout to stormwater drains.

Report any discrepancy between this job card and site conditions to the supervisor before starting work. Uncontrolled when printed.