Specifier Notes: This product specification is written according to the Construction Specifications Institute (CSI) Format, including Master Format (2016 Edition), Section Format and Page Format, contained in the CSI Manual of Practice.
This section must be carefully reviewed by the Engineer to meet the requirements of the project and local building code.
Coordinate with other specification sections and the drawings.
Delete all “Specifier Notes” after editing this section.
Basalt Fiber Reinforced Polymer (BFRP) rebar for Concrete Reinforcement according to ASTM D7957.
Specifier Notes: This section covers Basalt Engineering, LLC. – BASTECH® – Basalt Fiber Reinforced Polymer Rebar (BFRP Rebar)
BFRP Rebar is an alternative to galvanized or epoxy coated rebar, stainless steel rebar or GFRP rebar. BFRP rebar should be considered for any concrete member susceptible to corrosion of steel reinforcement by water, salt water, deicing salts or other corrosive agents as BFRP Rebar DOES NOT CORRODE. Other advantages of specifying BFRP Rebar: 4.5 times lighter than steel rebar, tensile strength is 2.5 times stronger than steel rebar, up to 30% less concrete coverage required versus steel rebar (subject to design), transparent to radio frequencies, non-conductive, non-magnetic, same thermal coefficient as concrete, dielectric, UV resistant, BFRP Rebar can withstand temperatures from -50 C to 300 C, less shipping costs, easier to handle, easier to cut, less cost than stainless steel rebar. Life span is 100 plus years in comparison to 50 years for steel rebar.
BFRP Rebar applications as an alternative to steel rebar: bridges, tunnels, seawalls, highways, mining, median barriers, approach slabs, parking structures, salt storage facilities, railroad grade crossings, precast, ports, airports, transformer sub stations, underground utilities, foundations, concrete tanks, submerged concrete structures, floating marine docks, aquaculture projects, MRI rooms, swimming pools, ice skating arenas.
Specifier Notes: The references below should be referred to by the Engineer regarding the application of BFRP Rebar for concrete reinforcement. Basalt Engineering LLC. Technical Division will assist the engineer in the appropriate applications of BFRP Rebar.
A. Deformed fiber reinforced polymer (FRP) bars for concrete reinforcement.
Specifier Notes: Edit the following list as required for the project. List other sections with work directly related to the BFRP rebar.
A. Section 03300 – Cast-In-Place Concrete
B. Section 03400 – Precast Concrete
Specifier Notes: List standards referenced in this section, complete with designations and titles. This article does not require compliance with standards but is merely a listing of those used.
A. ACI 117 – Specifications for Tolerances for Concrete Construction and Materials.
B. CRSI Placing Reinforcing Bars.
Specifier Notes: Design with BASTECH® – Basalt Fiber Reinforced Polymer Rebar (BFRP Rebar) shall be in accordance with ACI publication ACI 440.1R “Guide for the Design and Construction of Concrete Reinforced with FRP Bars” for building structures. For transportation structures, use AASHTO LRFD Bridge Design Guide Specifications for FRP – Reinforced Concrete, 2nd Edition December 2018. Alternatively, by the provisions of the Canadian Highway Bridge Design Code Section 16. Canadian Standards Association, CSA S806-02 Design and Construction od Building Components with Fiber Reinforced Polymers, Interim design guidelines have been published by the British Institution of Structural Engineers coving modifications to BS8110 and BS5400, the Norwegian Concrete Standard NS3473, and the Japanese Society of Civil Engineers.
In general, the designer shall consider the following:
Specifier Notes: Describe requirements for the placement and tolerances of BFRP rebar in the formwork.
A. Placing of the BFRP rebar, handing and tolerance in formwork shall be in accordance with ACI 440.5-18 “Specification for Construction with Fiber-Reinforced Polymer Reinforcing Bars”. Reported be ACI Committee 440, July 2018.
Specifier Notes: Care should be taken to avoid damaging the surface of the rebar by abrasion, nicks, or cuts.
Specifier Notes: Basalt Engineering, LLC. produces: #2, #3, #4, #5, #6, #7, #8, #9, #10 – bar size ¼” through to 1 ¼” diameter
Shapes produced at factory, cannot be site bent.
Must have detailed drawings to manufacture shapes and quantities.
Cut to specification size, #2 & #3
and can be coiled up to 300 feet
60% less than steel
Life span close to 100 years
|ASTM D 792||Measured Cross-Sectional Area, mm2||78.54||83.97||✓||✓||✓|
|ASTM D 2584||Fiber Content, % wt.||80.03||80.03||✓||✓||✓|
|ASTM D 570||Moist Absorption Short Term @ 50 C, %||0.24||0.24||✓||✓||✓|
|ASTM D 570||Moist Absorption Long Term @ 50 C, %||0.75||0.75||✓||n/a||✓|
|ASTM D 7617||Min. Guaranteed Transverse Shear, MPa||210.01||209.26||✓||✓||✓|
|ASTM D 4475||Horizontal Shear Stress, MPa||53.88||46.16||✓||✓||n/a|
|ASTM D 7205||Min. Guaranteed Tensile Load, kN||85.03||85.03||✓||✓||✓|
|ASTM D 7205||Min. Guaranteed Tensile Strength, MPa||1119||948.98||n/a||n/a||n/a|
|ASTM D 7205||Tensile Modulus, GPa||58||49||✓||✓||✓|
|ASTM D 7205||Max Strain, %||2.1||2.1||n/a||n/a||n/a|
Basalt Engineering, LLC. reserves the right to make improvements to the product or process which may result in benefits or changes to some of the physical-mechanical characteristics. The data contained herein is considered representative of current production and is believed to be reliable and to represent the best available characterization to the product as of September 1, 2020.
There are some dimensional limitations to shape details. Please contact Basalt Engineering LLC. to confirm availability of a particular shape. 1-888-244-7865.
Individual bars are sampled on a regular basis during production for tensile, modulus and ultimate strain testing. Testing is performed per ASTM D7205-06.
Examine areas to receive BFRP rebar. Notify Engineer if areas are not acceptable. Do not begin placing BFRP rebar until unacceptable conditions have been corrected.