HySSIL Test Results and Properties

HySSIL™ TEST RESULTS AND PROPERTIES | HySSIL™ INTELLECTUAL PROPERTY | HySSIL™ RESEARCH AND DEVELOPMENT

Table 2 provides detailed information of the current HySSIL™ product properties, inclusive of test method and appropriate Australian Standard (where applicable).

Table 2 HySSIL™ Test Results and Properties

Property

Test Method

Results

Comments

Bulk Density

Using cubes (100mm x 100mm x thickness) and or beams (350mm x 100mm x thickness) cut from test / sample panels produced at time of manufacture

Material: HySSIL™ 1500, heat cured.

- 1500kg / m3 after de-moulding (Average)

- 1460kg / m3 at 28 days, standard curing (Average)

Information gathered under normal manufacturing trials completed at the pilot plant

Results provided by Anacon Laboratory Services, a NATA accredited laboratory

Strength – Compressive & Flexural

Compressive strength of cubes (100mm x 100mm x thickness) tested in accordance with AS1012.9

Flexural strength of beams (100mm x 350mm x thickness) tested in accordance with AS1012.11

Material: HySSIL™ 1500, heat cured.

- Compressive, 17 - 20 MPa @ 28 days

- Flexural, 2 - 3 MPa @ 28 days

Information gathered under normal manufacturing trials completed at the pilot plant

Results provided by Anacon Laboratory Services, a NATA accredited laboratory

Elastic Modulus¹

Tested on prisms (100mm x 100mm x 200mm) cut from trial panels at 28 days

The loading rate used was as per AS1012

Material: HySSIL™ 1500, steam cured.

- 10,000 MPa or 10 GPa (Approx.)

The estimated elastic modulus for normal density concrete with a 28 day strength of 20 MPa and a density of 2500kg / m3 is 24,000 MPa

Drying Shrinkage¹

Measured on reinforced HySSIL™ (600mm x 1800mm x 100mm) panels

Measurements were taken from three sets of stainless steel pins located along the centreline of the panel

Measurements commenced 24 hrs after casting and continued for approximately six months

Material: HySSIL™ 1500, steam cured.

- 500 microstrain @ 56 days

- 600 microstrain @ 1 year (estimated value)

- 700 microstrain, ultimate (estimated value)

As a comparison, the basic shrinkage strain used in AS3600 for Normal Class concrete is 850 microstrain

For a panel with a hypothetical thickness of 100mm in an interior environment, the 30 year design shrinkage is 860 microstrain for Normal Class concrete.

Therefore, the estimated ultimate value (700 microstrain) of HySSIL™ is lower than the 30-year design shrinkage suggested in AS3600

Water Sorptivity¹

Using (400mm x 170mm x 100mm) HySSIL™ panels

Tested to reflect the resistance to water ingress by capillary sorption under a 50mm hydro-static pressure head, using one measurement at 24 hours (d₂₄)

Material: HySSIL™ 1500, steam cured.

- d24 = 8mm - 13mm @ 28 days

At these relatively low sorptivity values, HySSIL™ 1500 would more than satisfy the durability requirements in AS3600, for structures in service under fairly severe exposure classifications of B1 & B2

As a comparison, the d₂₄ values for a 60MPa structural precast concrete containing Type GP cement is ~ 15mm (standard curing) and ~ 25mm (after steam curing)

Thermal Conductivity¹

Thermal measurements were made using a heat flow apparatus, measuring the steady state thermal transmission properties in compliance with ASTM C 518 and AS/NZS 4859

Material: HySSIL™ lab dry density.

- 1000kg / m3 0.42 W/mK

- 1300kg / m3 0.60 W/mK

Generally, the thermal conductivity values of normal density concrete typically ranges between 1.5 to 2.5 W/mK

Fire Resistance²

Tested at CSIRO – Materials Science and Engineering facility North Ryde NSW

In accordance with Australian Standard 1530 ‘Methods for fire tests on building materials, components, and structures, Part 4-2005, Fire-resistance tests of elements of construction’

Material: HySSIL™ 1500, heat cured.

- For the purposes of Building Regulations in Australia, a fire-resistance level (FRL) of 240/240/240 was achieved

- The FRL is applicable for exposure to fire from the same side as tested

Specimen comprised a HySSIL™ 1500 panel wall 3000mm high x 3000mm wide x 150mm thick.

The panel wall was built using two 3000mm high x 1480mm wide HySSIL™ panels forming a nominal 20mm wide vertical joint

A total load of 800kN was applied to the specimen for the duration of the test

Structural Bending Strength³

Conducted using HySSIL™ panels (2100mm long x 900mm wide x 150mm thick) reinforced with a single layer of F62 mesh located centrally

The panels were tested in a 4-point arrangement horizontally. The load was applied at an approximate rate of 10mm / minute until the reinforcing mesh had clearly yielded

Material: HySSIL™ 1500, heat cured.

- Estimated Design Capacity – 1.18 MPa

Refer to HySSIL™ technical manual for further information on the structural calculations

Pull-out strength⁴

Conducted using HySSIL™ panels (1200mm x 1200mm x 150mm thick)

Anchors were installed according to Powers Fasteners’ installation instructions

Material: HySSIL™ 1500, heat cured.

- PBI Structural Anchor (PBI18-12/82LE) – Allowable Load (kN) = 4.1

- Ultimate Tension Load (kN) = 16.4

- Recommended Minimum Safety Factor = 4

Anchors were fitted in the face of the panel approximately 350mm in from external edges

The loads listed are for single anchors without edge and / or spacing influence(s)

Impact Strength¹

International Standard ISO 7892: 1988 was used as a guide for these tests

Hard body impact test were undertaken using 0.5 and 1.0kg balls dropped from heights of 400mm and 800mm

Material: HySSIL™ 1500, heat cured.

- Diameter of indentation between 8-15mm

As a comparison, 40 MPa concrete would result in an indentation range of 5 – 10mm

This table has been complied using information from the following reports, as referenced above: