Atlas index
Sheet · 100–300 mm
Cementitious — indicative fig. M·03

Structural concrete with steel fibres for crack control and toughness; fibre tensile strengths typically range from about 1,160 MPa (Dramix 3D) to 2,300 MPa (5D/4D ranges).

01 Physical

Density 2400kg/m3
Specific gravity 2.45
Porosity 12%
Water absorption 3%
Hardness 7
UV resistance excellent
Chemical resistance good
pH tolerance 11-13
Surface roughness 6µm

02 Mechanical

Tensile strength 2.2-4.1MPa
Compressive strength 20-50MPa
Flexural strength 6MPa
Shear strength 10MPa
Poisson's ratio 0.2
Impact resistance high
Creep resistance good

03 Thermal

Thermal conductivity 2.25W/m·K
Specific heat 950J/kg·K
Thermal expansion 11×10⁻⁶/°C

04 Compliance & Fire First question

Combustibility class non-combustible
Fire resistance level 120/120/120
Flame spread index 0
Smoke dev. index 0
Heat release rate 0

05 Sustainability & Health

Embodied carbon 0.13
Carbon footprint 320
Embodied energy 1.5MJ/kg
Water footprint 200L/kg
Recyclability 100%
Recycled content 15%
Renewable content 0%
Circular score 75
VOC emissions 0
Toxicity rating non-toxic
LEED contribution 3

06 Durability · Cost · Logistics

Expected lifespan 50-100+ years
Maintenance interval 5 years
Warranty period 12 months
Material cost (range) 350-450
Material cost (per unit) 400
Lead time 5-10 days
Lifecycle cost 850
Annual maintenance 0.5
Market availability readily available

07 Assessment

Advantages

  • Enhanced tensile strength (4.5-7.5 MPa) and post-crack performance
  • 40-80% improvement in shear strength
  • 3-5× better fatigue resistance than plain concrete
  • Reduced construction time (eliminates mesh installation)
  • Extended joint spacing capability (4-8m)
  • Excellent fire resistance (FRL up to 180/180/180)
  • Superior acoustic performance (STC 50-65)
  • 70-80% reduction in explosive spalling under fire
  • 15-25% improvement in carbonation resistance
  • 100+ year service life with proper design

Constraints

  • 15-50 $/m³ premium over standard concrete
  • Requires Performance Solution pathway under NCC
  • Engineering certification mandatory
  • Limited pumping capability at high dosages (>80 kg/m³)
  • Skilled installation crew required
  • Quality control critical for fibre distribution
  • Higher embodied energy (5-35% increase)
  • Limited EPD availability in Australia
  • Potential corrosion of exposed fibres
  • Specialist equipment for high-dosage mixes

08 Applications

A1 Suspended structural slabs (100-300mm thickness)
A2 Industrial warehouse floors
A3 Heavy infrastructure projects
A4 Ground-supported slabs
A5 Retaining walls and basement walls
A6 Precast concrete elements
A7 Shotcrete applications
A8 Marine structures
A9 Mining and tunnelling applications
A10 Bushfire-resistant construction (BAL 12.5-40)

09 Sources & Standards

Sources pending — citations for this material are not yet recorded. Verify all figures against manufacturer data and current standards before specifying.

MATERIALS ATLAS · CL·AD M·03 · data indicative — verify per project