Tubeshor 1060 Technical Datasheets

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CONCRETE PRODUCTS

Concrete Connection Concrete Connection Glass Fibre Reinforcement Polymer y GFRP Tie‐Rods

Innovative way to hold the shuttering , quick, and  economical  and smart way of securing the  Formwork.

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Table of content

1. INTRODUCTION. 2. PRODUCT FEATURES. 3. DESIGN CONSIDERATIONS. 4. PRODUCT TECHNICAL DETAILS. 5. CONVENTIONAL USE OF TIE ROD. 6 PROBLEMS IN CONVENTIONAL SYSTEM. 6. PROBLEMS IN CONVENTIONAL SYSTEM 7. ADVANTAGES OVER STEEL TIE RODS. 8. APPLICATION PHOTOGRAPHS.

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Product Features. Quality ‐ Fiber Reinforced Polymer Rods ( Q‐FRP ROD ) Reinforced Concrete is a common building material for construction of f ili i and facilities d structures. While Whil concrete has h high hi h compressive i strength, h it i has h limited tensile strength. To overcome these tensile limitations, reinforcing bars are used in the tension side of concrete structures. Steel rebar has historically been used as an effective and cost‐efficient concrete reinforcement. Where not subjected to chloride ion attack, steel reinforcement can last for decades without exhibiting any visible signs of deterioration. However, it is susceptible to oxidation (rust) when exposed to chlorides. Examples of such exposure include coastal areas, sites where road salts are used for deicing, locations where salt contaminated aggregates are used in the concrete mixture, and sites where aggressive chemicals and ground conditions exist. Where corrosion of rebar occurs, the resulting products have a larger volume (2‐ 5 times) than the metal product from which they originally derived. The concrete cannot sustain the tensile load developed from this volume increase, and eventually cracks and spalls, leading to further deterioration of the steel. The combination of ongoing deterioration and loss of reinforcement properties ultimately requires potentially t ti ll significant i ifi t and d expensive i outlays tl f repair for i and d maintenance, i t and d possibly the endangerment of the structure itself. History and research data has proven that epoxy coated steel rebar is not an adequate answer to these needs, although it is presently the most commonly used product for such applications. Stainless steel will address corrosion issues, but is too expensive. Q Q‐FRP FRP ROD with its superior tensile properties and built‐in corrosion resistance offers a unique and economically feasible reinforcing rebar for such applications.

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Design Considerations.

The mechanical properties of FRP reinforcing bars differ from those of conventional steel rebar in a number of areas. As a result, several issues arise in the development of a design methodology for concrete structures reinforced with such bars. The general design recommendations for flexural concrete elements reinforced with FRP reinforcing bars are presented in the ACI 440.1R‐06 entitled "Guide for the Design and Construction of Concrete Reinforced with FRP Bars” as reported by the American Concrete Institute (ACI) committee 440. The ACI 440 recommendations are based on principles of equilibrium and compatibility, and the constitutive laws of the materials. The new design philosophy adopted for FRP bars used as reinforcement for concrete allows consideration to be given to either FRP rupture or concrete crushing as the mechanism that controls failure. It is based on limit states design principles. An FRP reinforced concrete member is designed based on its required strength, and then checked for fatigue endurance, creep rupture endurance, and serviceability criteria. In most cases serviceability criteria or fatigue and creep rupture endurance limits will control the design.

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Product Technical Details. DIMENSIONS:  Nominal Diameter and Sectional Area Size

Nominal  Diameter (inches)

Area (in2)

Weight (lb/Ft)

Soft Metric Size

Nominal  Diameter (mm)

Area (mm2)

Weight (g/m)

#2

0.250

0.049

0.052

#6

6.350

31.669

77.4

#3

0.375

0.110

0.113

#10

9.525

71.256

168.4

#4

0 500 0.500

0 196 0.196

0 182 0.182

#13

12 700 12.700

126 677 126.677

271 4 271.4

#5

0.625

0.307

0.286

#16

15.875

197.933

425.0

#6

0.750

0.442

0.413

#19

19.050

285.024

614.4

#7

0.875

0.601

0.641

#22

22.225

387.949

953.6

#8

1.000

0.785

0.733

#25

25.400

506.709

1090.1

Bar  Size 

Tensile  Modulus of  Elasticity  in  Gpa 

Msi 

Mpa 

#6 

#2 

46.1 

6681 

877 

127 

#10 

#3 

46.2 

6.696 

852 

#13 

#4 

46.4 

6.725 

#16 

#5 

48.2 

#19 

#6 

#22  #25 

mm 

Ultimate Tensile  Strength 

Guaranteed Design  Tensile Strength  Ksi 

Ultimate Strain in  Tension 

Poisson’s  Ratio 

Mpa 

Ksi 

% 

788 

114 

1.90 

0.25 

123 

765 

111 

1.84 

0.21 

791 

115 

710 

103 

1.70 

0.26 

6.986 

761 

110 

683 

99 

1.58 

0.25 

47.6 

6.899 

730 

106 

656 

95 

1.53 

0.25 

#7 

46.4 

6.725 

695 

101 

625 

91 

1.50 

0.25 

#8 

51.0 

7.391 

681 

99 

611 

89 

1.34 

0.28 

A minimum overlap length of 40 diameters is required when overlapping bars to obtain longer lengths A minimum overlap length of 40 diameters is required when overlapping bars to obtain longer lengths. 

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Conventional use of Tie Rod.

Conventional way of using Tie Rod for securing the Formwork

With The  conventional  type of Tie Rod 

Normally problem in recovering  the Tie Rod after Concrete done

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Require Accessories as below: : Require Accessories  as  below

Require : PVC Conduit  of full  length of the concrete face to face. Conduit of full length of the concrete face to face. •PVC •End Stoppers on either side. •Tension Plate on both the sides . •Steel Tie Rod  of length  more than the concrete face . •Wing Nut  on either side. g

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Problems in Conventional Tie Rods. Problems with Conventional Tie rods 

After Concrete  done and  the tie rod removed after  de‐shuttering, a  cavity  observed in concrete ,  which needs to be filled  with Micro Concrete also  bad finishing. Normally 50% of the tie  rods are unable to be  recovered after the  concrete has been done  – resulting  a big job to  cut the steel bars at the  face of the concrete ,  which consume  expensive Man hours  and  special tool for  cutting the same.

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Advantages of GFRP Tie Rod over Steel Tie Rod. Advantages of GFRP Tie Rod over Steel Tie Rod. Sr. No GFRP Tie Rods

Steel Tie Rods

1.

As Pre‐threaded no threading required g q

Threading required g q

2.

Since Pre‐threaded no Transport cost

Transport cost attracted

3.

Strength more that the steel

4.

Light weight and easy to handling

Difficult in handling due to weight

5.

Non corrosive by nature

Corrosive so greasing required at end threads

6.

Bonding between concrete and rod is  monolithic

Since the rod is placed in PVC sleeve a cavity is  formed after removal of the tie rod .

7.

Due to perfect bond between concrete and  GFRP rod  no leakage is possible

8.

Since cavity is formed there is a chance of leakage  and additional cost of waterproofing may be  required. Accessories like PVC conduit, end stoppers and  No accessories like PVC conduct and end  stoppers required, since there is a possibility  stoppers required, since there is a possibility greasing required. greasing required. of damage of conduit during concrete due to  which the rod may be locked

9.

Post  chipping of the concrete is not required  Post chipping required , so saving in expensive manpower cost

0 10

G GFRP tie bars can be arranged to the nearest  t e ba s ca be a a ged to t e ea est Due to chipping the joint has to be filled with  ue to c pp g t e jo t as to be ed t colour of the concrete for good artistic look cement mortar due to that the patch work is visible.

11

Since GFRP bars can be cut to the face of the  Since the reworking of the patch work, patch –up  concrete surface it  is very  difficult to  curing required, staging required also the chances of  identify having surface cracks are more.

12

Since it can be easily handled it  can be used  Expensive staging required at higher elevation due  at higher elevations easily. to difficulty in handling.

13. 

On Special request higher diameter Tie rods  can also be made available for better  stability Can be cut with normal hacksaw blade

14.

Generally used on the predetermined bar size.

Require power tools or gas cut, which can damage   the bar due to which re the bar due to which re‐usage usage of the tie bar is not  of the tie bar is not possible

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Application Photograph of GFRP Tie Rod GFRP  Tie rods :

The GFRP Q –Rod  (tie rods) are  embedded in the concrete  and are non  recoverable type. Major Advantages of  using GFRP Tie Rod 1)The tie rods can be secure with bolts on  both the side as this are threaded on the  ends.(easy installation and handling due  to less weight as compared to steel rods) 2)The cycle time is very fast, as after de‐ shuttering the GFRP protruding bars can  h tt i th GFRP t di b be saw cut easily, as compared to steel tie  rods. 3)No sleeves are required, due to that the  bond between the concrete and GFRP tie  , q rod is monolithic, also not require to fill  the cavity with micro concrete after  removal of the tie rod as in case of steel  tie rod. 4)Post concrete cutting of tie rod is very  easy as compared to steel.

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Application Photograph of GFRP Tie Rod GFRP  Tie rods : Use in continues wall .

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Application Photograph of GFRP Tie Rod GFRP  Tie rods : Use in continues wall  with  Decorative  finishing.

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Application Photograph of GFRP Tie Rod GFRP  Tie rods : Use in Retaining wall.

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Application Photograph of GFRP Tie Rod GFRP  Tie rods : Use  in Decorative Column.

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Application Photograph of GFRP Tie Rod GFRP  Tie rods : Use  in Decorative Column.

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Application Photograph of GFRP Tie Rod GFRP  Tie rods : Use  in Column & Core Walls.

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Application Photograph of GFRP Tie Rod GFRP  Tie rods : Use  in Column & Core Walls.

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Application Photograph of GFRP Tie Rod GFRP  Tie rods : Use  in Column & Core Walls.

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CONCRETE PRODUCTS

Quality Concrete Products Shagun Arcade, F‐82.First Floor, Opp. HDFC Bank, Gen A K Vaidya Marg, Malad (E), Mumbai‐400 097 Telefax‐022 40148787  E‐mail: [email protected]  Web‐ www.qualityconcreteproduct.com 

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