Important Factors on Chemilink Grouting Material of Semi-Rigid - - PowerPoint PPT Presentation

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Important Factors on Chemilink Grouting Material of Semi-Rigid - - PowerPoint PPT Presentation

Sep 27, 2022 338 likes •623 views

15 th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010) 27 May 2010 Engineering Auditorium National University of Singapore, Singapore Important Factors on Chemilink Grouting Material of Semi-Rigid Pavement Zhang Yanli Dr Wu Dong Qing

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15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010) 27 May 2010 Engineering Auditorium National University of Singapore, Singapore

Important Factors on Chemilink Grouting Material of Semi-Rigid Pavement

Zhang Yanli Dr Wu Dong Qing yanli_zhang@chemilink.com wu@chemilink.com David Daud david_daud@chemilink.com _________________________________________________________________________

Chemilink Technologies Group, Singapore

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15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

Table of Contents

  • 1. Introduction
  • 2. Chemilink Grouting Material
  • 3. Key Factors on Chemilink Grout
  • 4. Semi-Rigid Pavement
  • 4. Semi-Rigid Pavement
  • 5. Application Procedure
  • 6. Examples of Completed Projects In Singapore
  • 7. Conclusions
  • 8. Acknowledgement
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  • 1. Introduction

Semi rigid pavement is a kind of effective and durable pavement to cater for increasingly heavy wear and tear. Composition of semi rigid pavement:

  • pen asphalt concrete + high strength polymer-cement grout.
  • 15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

The properties of semi rigid pavement are determined by that of asphalt concrete and polymer-cement grout. Semi rigid pavement has advantages of both asphalt concrete and polymer-cement grout. High skid resistance; Easy to maintain and repair; Jointless; Quick Installation and short curing time; etc.

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  • 2. Chemilink Grouting Material

The requirements for grouting materials: Good flowability (Workability) High strength Balance of the above two

15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

Balance of the above two

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  • 2. Chemilink Grouting Material

15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

High performance polymer modified cementitious material

  • High flowability
  • Easy application
  • High early strength
  • Early opening to traffic
  • High long-term strength Low maintenance
  • High long-term strength Low maintenance

Requires only the addition of water to produce a smooth and highly workable mixture. Result of extensive research work with the introduction of nano-technology.

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  • 2. Chemilink Grouting Material

Properties Test Methods Values of Chemilink Grout Flowability (Workability) ASTM C939

  • 13 ~ 27 Seconds

JASS 15 M103

  • 27 ~ 31 cm

12 hrs

  • 20 ~ 30 MPa

15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

Compressive Strength EN 12190 1 day

  • 55~ 85 MPa

7 days

  • 100 ~ 120 MPa

28 days

  • 120~ 140 MPa

Flexural Strength at 28 days EN 196

  • 7 ~ 15 MPa

Setting Time EN 196 - 3 2~3h, 3~6h, 6~8h

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15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

  • 3. Key Factors on Chemilink Grouting Material
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15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

6.00 7.00 8.00

(h) Setting Time – W/P Ratio Final Setting

  • 3. Key Factors on Chemilink Grouting Material

1.00 2.00 3.00 4.00 5.00 6.00 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.30

Setting Time (h W/P Ratio Initial Setting W/P ratio – water/powder ratio

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15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

Two Methods to Test Flowability of Cement Grout: ASTM C939 Method (Flow Cone Method) Material of Flow Cone: (1) Discharge tube: stainless steel

  • 3. Key Factors on Chemilink Grouting Material

(1) Discharge tube: stainless steel (2) Body: stainless steel, cast aluminum, non-corroding metal high density polyethylene Volume: 1725 5 mL Measure the time of efflux of about 1725mL cement grout from the flow cone.

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15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

Two Methods to Test Flowability of Cement Grout: JASS 15 M103 Method

50mm

  • 3. Key Factors on Chemilink Grouting Material

51mm Stainless Steel Plastic Plate Spreading Grout Measure the diameter of spreading grout Lift Vertically Upward Slowly cheap, easy to use, save time

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15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

50 60 70

ity

Flowability Comparison between two Testing Methods

  • 3. Key Factors on Chemilink Grouting Material

10 20 30 40 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.30 0.31 0.32

Flowability W/P Ratio

JASS 15 M103 Method (CM) ASTM C939 Method (S)

27.50cm 26.80S

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15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

As w/p ratio 0.25, the flowability of Chemilink grout is: Flow cone method 27 seconds JASS15 M103 method 27cm Chemilink grout can penetrate into the porous asphalt

  • 3. Key Factors on Chemilink Grouting Material

concrete 50~100mm deep and fill the voids very well JASS method is highly recommended, because: Easy to use Save time

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15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

130 150

MPa)

Compressive Strength - W/P Ratio

Curing Age 28 day

  • 3. Key Factors on Chemilink Grouting Material

50 70 90 110 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.30

Compressive Strength (MP W/P Ratio

1 day 7 day 11 day

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  • 3. Key Factors on Chemilink Grouting Material

15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

130 150

gth (MPa)

Compressive Strength - Curing Age

0.30 0.27 0.25 0.23 W/P Ratio 0.20 30 50 70 90 110 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29

Compressive Strengt Curing Age (day)

0.30

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As w/p ratio 0.30, compressive strength:

1-day > 55 MPa; 7-day 100 MPa; 11-day 110 MPa (meets LTA requirement for 28 days);

  • 15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)
  • 3. Key Factors on Chemilink Grouting Material

28-day120 MPa 0.25~0.30 is the optimum w/p ratio range for this specific formula as Chemilink grouting material obtains the balance of good flowability and high strength in this w/p ratio range. Optimum w/p ratio can be adjusted by adjusting formula.

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  • 4. Semi-Rigid Pavement

Properties Test Method Semi-Rigid Pavement (Chemilink Grout as Topping) Compressive strength at 12 hrs EN 12190

  • 3 ~ 5 MPa

Compressive strength at 1 day

  • 6 ~ 8 MPa
  • 9~12.5 MPa

Compressive strength at 8 days

15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

Compressive strength at 28 days

  • 10 ~ 15 MPa

Flexural strength at 28 days EN 12190

  • 3 MPa

Modulus ASTM D4123

  • 6,500 MPa (at 25oC)

Skid Resistance ASTM E303

  • 50 ~ 60 BPN

Impermeability DIN 18130

  • impermeable

Curing time

  • 4 ~ 8 hours
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  • 5. Application Procedure

Porous Asphalt Concrete Mixing of Grouting Material Flowability Checking 15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010) Porous Asphalt Concrete Mixing of Grouting Material Flowability Checking Using ASTM Method Filling Grout into Porous Asphalt Concrete Scraping Flowability Checking Using JASS Method

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  • 5. Application Procedure

15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010) Right After Filling Hardened Surface Cored Samples

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  • 6. Examples of Completed Projects In Singapore

15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

Heavy Loading Yard at Sungei Kadut Street 4 (2005)

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Singapore Changi Airport Apron 1 (2007)

15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

  • 6. Examples of Completed Projects In Singapore
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Singapore Changi Airport Apron 2 (2007)

15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

  • 6. Examples of Completed Projects In Singapore
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15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

Turning Area of Heavy Loading Yard at Sungei Kadut Street 1 (2010)

  • 6. Examples of Completed Projects In Singapore
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15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

Heavy Loading Yard at Abingdon Road (2010)

  • 6. Examples of Completed Projects In Singapore
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Chemilink Grouting Material Compressive strength:

  • 1-day: 55~85MPa
  • 11-day: 110~125MPa (meets LTA latest requirement for 28 days)

15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

  • 7. Conclusions
  • 28-day: 120~140MPa.

Flowability: when flow cone method 27 seconds, JASS15 M103 method 27cm, Chemilink grouting material can penetrate 50~100mm deep into porous AC. Different version for different requirement. Chemilink can specially design the formula to meet customer’s specific requirements.

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15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)

  • 8. Acknowledgement
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15th SINGAPORE SYMPOSIUM ON PAVEMENT TECHNOLOGY (SPT 2010)