FCS CONCRETE REPAIRS PTY LTD | ABN: 68 602 061 709

MANLY STRATA UNIT STRUCTURAL STRENGTHENING

Apr 4, 2017 | Post, Projects

[vc_row][vc_column][vc_custom_heading text=”PROCESS: INSTALLATION OF CARBON FIBRE REINFORCED POLYMER STRENGTHENING (CFRP) TO REINFORCED CONCRETE SOFFIT” font_container=”tag:h2|text_align:left|color:rgba(10%2C10%2C10%2C0.66)” google_fonts=”font_family:Lato%3A100%2C100italic%2C300%2C300italic%2Cregular%2Citalic%2C700%2C700italic%2C900%2C900italic|font_style:400%20regular%3A400%3Anormal”][vc_separator][vc_column_text]FCS Concrete Repairs successfully tendered to carryout structural strengthening to the soffit of a strata unit at Manly.

Our client’s Engineer advised FCS Concrete Repairs that the unit’s soffit required strengthening and provided a marked up drawing indicating where the specified product, Sika Carbodur S1214 strengthening strips, were required to be installed.

The process of installation was carried out by FCS Concrete Repairs experienced trained staff in accordance with the manufacturer’s specifications and the client’s engineering design.[/vc_column_text][vc_column_text]Note: FCS Concrete Repairs staff have received instruction from Sika Australia training personnel and FCS Concrete Repairs is a Sika approved applicator.

The process was as follows:

  • Prior to commencement the soffit substrate quality was established using the Pull-off tests with a minimum requirement of 1.5MPa and tested to ensure that moisture content was less than 4% pbw.

[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column width=”1/3″][vc_gallery interval=”3″ images=”2684″ img_size=”medium”][/vc_column][vc_column width=”1/3″][vc_gallery interval=”3″ images=”2685″ img_size=”medium”][/vc_column][vc_column width=”1/3″][vc_gallery interval=”3″ images=”2686″ img_size=”medium”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text]

  • The surface to be strengthened was levelled where necessary to provide maximum .
  • The substrata was cleaned of any contaminants and loose material.
  • The substrata was tested to ensure that moisture content was less than 4% pbw.
  • Ambient temperature was between the required 8°C and 35°C.
  • Substrate temperature was atleast 3°C above the dew point.
  • Sikadur 30 adhesive was used to fix the Sika CarboDur S1214 Carbon Fibre Reinforced Polymer strips(CFRP) to the soffit and was mixed as per the Sika product Technical Data Sheet.
  • Sikadur30 is a thixotropic adhesive mortar based on a 2-component solvent free epoxy resin which has the following properties required for the application of the product to the soffit:

[/vc_column_text][vc_column_text]Tensile Properties (ASTM D-638)

Tensile strength is a measurement of the force required to pull something such as rope, wire, or a structural beam to the point where it breaks.

7 day Tensile Strength 3,600 psi (24.8 MPa)

Flexural Properties (ASTM D-790)

Flexural strength, also known as modulus of rupture, or bend strength, or transverse rupture strength is a material property, defined as the stress in a material just before it yields in a flexure test.

14 day Flexural Strength (Modulus of Rupture) 6,800 psi (46.8 MPa)

Shear Strength (ASTM D-732)

Shear strength represents how hard you can try to cut it without it breaking.

14 dayShear Strength 3,600 psi (24.8 MPa)

  • Sika CarboDur S1214 CFRP strips were installed in the designated locations on the soffit of the unit using the Sikadur 30 adhesive.

[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_column_text]

  • Sika CarboDur can be used to strengthen reinforced concrete due to loading increases, structural damage, changes in the structure or design or construction defects.
  • Sika CarboDur S1214 is 120mm wide, 1.4mm thick and can achieve very high tensile and flexural strengths:

Elastic Modulus           >165,000 MPa

Tensile Strength          >2,800 MPa

Mean Value of Tensile Strength at Break  > 3,050 MPa

 

  • Sikadur 30 was first applied to the soffit to a nominal thickness of 1.5mm and then to the Sika CarboDur laminate also to a thickness of 1.5mm.
  • The laminate was then placed on the surface of the soffit and rolled into the epoxy resin adhesive.
  • Sikadur 30 reaches it’s design strength after 7 days.

RESULT: The end result was that the soffit of the unit was structurally strengthened to the specifications of the client’s Engineer cost effectively without the need for any costly structural concrete modifications.[/vc_column_text][/vc_column][/vc_row]

Get a Quote Today

Get your concrete problems solved by specialists.

See why our clients keep coming back for our services.

Request a QuoteSee What We Can Do

Get a quote

today

Get your concrete problems solved by specialists. 

See why our clients keep coming back for our services.

 

Request a QuoteSee What We Can Do
Exploring the Durability of Carbon Fibre Strengthening Process

Exploring the Durability of Carbon Fibre Strengthening Process

When considering concrete repair and strengthening solutions, durability is a paramount concern. Among the various methods available, carbon fibre strengthening stands out as a promising option renowned for its strength and longevity. In this exploration, we delve...

Read More

Water Leakage in Dincel Basement Walls: Unveiling the Efficacy of PU Grout Injection

Water Leakage in Dincel Basement Walls: Unveiling the Efficacy of PU Grout Injection

In the field of construction, where the challenge of water infiltration is ever-present, Dincel Basement Walls have emerged as a contemporary solution. Nevertheless, even these innovative structures can encounter the issue of water leakage. This blog post delves...

Read More

building concrete floor with Carbon Fibre Structural Strengthening
Carbon Fiber vs. Reinforcing Steel: A Guide to Optimizing Concrete Strengthening and Reinforcement Costs

Carbon Fiber vs. Reinforcing Steel: A Guide to Optimizing Concrete Strengthening and Reinforcement Costs

In the dynamic landscape of construction, the choice between carbon fibre and traditional reinforcing steel for concrete structural repairs and strengthening is a pivotal decision, impacting not only strength but also the overall cost-effectiveness of the repair...

Read More

Carbon Fibre for Superior Concrete Beam Reinforcement

Carbon Fibre for Superior Concrete Beam Reinforcement

When it comes to reinforcing concrete beams, the choice between carbon fibre and steel plate holds significant implications for structural durability, performance, and long-term maintenance. While both materials offer reinforcement solutions, carbon fibre emerges...

Read More

Two man applying carbon fibre structural strengthening to a building concrete floor
Advantages of Carbon Fibre vs. Steel Plate for Reinforcing Concrete Beams

Advantages of Carbon Fibre vs. Steel Plate for Reinforcing Concrete Beams

When it comes to reinforcing concrete beams, the choice between carbon fibre and steel plate holds significant implications for structural durability, performance, and long-term maintenance. While both materials offer reinforcement solutions, carbon fibre emerges...

Read More

Revitalising Aging Infrastructure with Carbon Fibre Structural Strengthening: The Benefits and Applications

Revitalising Aging Infrastructure with Carbon Fibre Structural Strengthening: The Benefits and Applications

As cities around the world continue to age, so too do their infrastructure. Bridges, tunnels, and buildings that were once considered state-of-the-art are now in need of repair and revitalization. Fortunately, modern engineering techniques such as Carbon Fibre...

Read More

Carbon Fibre Structural Strengthening application in building structures

Carbon Fibre Structural Strengthening application in building structures

Strength and Durability Carbon fibre structural strengthening is a popular technique used in the construction industry to reinforce building structures. The method involves the use of high-strength carbon fibres to enhance the structural capacity of concrete,...

Read More