Brocure Dupont Elvaloy 5i5f3p

THE CHEMISTRY THAT PAVES THE WAY FOR

BETTER PERFORMANCE

OVER 20 YEARS OF

of asphalt. To meet these challenges, Dow offers the paving industry a better

Low Temperature Performance Test

• Short mixing time for on-demand production • Can be compacted and mixed in lower temperatures than Styrene Butadiene Styrene (SBS)-modified binders • Can be easily blended into the hot binder – no high sheer mill required • As a stable product, it can be stored for several months – eliminating any potential polymer waste • Requires lower storage temperature and energy usage than SBS-modified binders

Meets or Exceeds Specifications

• Provides exceptional rutting resistance and hot/cold temperature performance • Offers great fatigue cracking protection • Has inherent stripping resistance • Meets the requirements of fuel resistance to binder mixes • Allows to cost-effectively meet empirical and performance specifications

Better Value

• Lower system cost • Requires lower capital investment than competitive alternatives • Not susceptible to pricing swings from butadiene availability like SBSmodified binders

performing and more efficient binder modifier – DuPont™ ELVALOY RET. ®

REACTIVITY

Permanent chemical bond with the binder

DURABILITY

Maximum life span against rutting, fatigue & high traffic

EXTREME CLIMATES

High resistance to different temperatures

ROBUST

Innovation for a versatile & universally applicable binder

Multiple Stress Creep Recovery Test

Thermal cracks in pavement occur when temperature related forces of expansion and contraction exceed a binder’s ability to stretch or compress enough to conform to these movements. Roads modified with DuPont™ ELVALOY® RET have high resistance to changes in temperatures. The binder modified with DuPont™ ELVALOY® RET displayed the best performance in extreme temperatures among several modifiers.

The Multiple Stress Creep Recovery Test (MSCR) predicts the pavement’s performance to rutting at different temperatures and stress levels. Binder modified with DuPont™ ELVALOY® RET displayed the greatest resistance to rut formation in even extreme temperatures.

Figure 1: Low Temperature Performance of Binder Modified with Different Modifiers BBR Tcr (RTFO/PAV)

Figure 2: Multiple Stress Creep Recovery Test Stress vs. Temperature at 3.2kPa

PERFORMANCE EFFICIENCY

Designed for longevity & value

®

Repeated heavy loads cause pavements to permanently deform over time, forming unsafe ruts in the road. The Hamburg Rutting Test stimulates the dynamic of heavy and repeating traffic loads to determine the pavement’s performance after a specified number of es. In the Hamburg Wheeltracking Device (WTD) Test, the binder modified with DuPont™ ELVALOY® RET displayed the greatest resistance to rutting.

90

15 20

1.5 2.0

X-SBS

SBS

EVA

PG64-28 PG70-22

3.0 55

10 15 20 25

0

2

4

6

8

10

12

14

16

18

20

Rutting Cycle (1,000s) ELVALOY® PG70

X-SBS PG70

SBS PG70

PG64

60 50 40 30 20

2.5

ELVALOY®

5

70

1.0 10

0

80

0.5

5

Figure 4: Hamburg Rutting Test Hamburg WTD – (under water 58°C) diabase mix, 7% void

Figure 5: Hamburg Rutting Test Visual Results Conventional Binder vs. Binder Modified with DuPont™ ELVALOY® RET

Figure 3: Multiple Stress Creep Recovery Test* Recovery vs. Stress at 3.2kPa

0.0

0

25

Hamburg Rutting Test

Rut Depth (mm)

development and application

Efficient Processing

™

Recovery (%)

requirements with the

DuPont ELVALOY RET Performs Better Than Other Binder Modifiers

Jnr (kPa-1)

durability, and delivery

Since 1991, innovators have been using DuPont™ ELVALOY® RET (Reactive Elastomeric Terpolymer) for roads around the world. These binder modifiers are specially designed for longevity, versatility and added value all while minimizing safety hazards from road deterioration.

Temperature (°C)

There are inherent climate,

PROVEN PERFORMANCE

10 60

65

70

75

80

Temperature (°C) ELVALOY® 70-28

SBS 70-28

PG70-22

0 4.0

Standard 3.5

3.0

Heavy 2.5

2.0

1.5

VH 1.0

E 0.5

0

Jnr (kPa-1) PG58-28

ELVALOY® 76-28 (70V, 76H, 82S) ELVALOY® 70-28 (64V, 70H, 76S) SBS 76-22 (70V, 76H, 82S)

SBS 70-28 (64V, 70S) SBR 70-22 (58V, 64H, 70S)

*VH: Very Heavy E: Extreme Source: Fig. 1: Federal Highway istration – FHWA-RD-02/074 10/2010. Fig. 2: MSCR Test & Method Specification – Federal Highway istration - John D’Angelo – 200. Fig. 3: MSCR Test & Method Specification – Federal Highway istration - John D’Angelo – 2008. Fig. 4: Understanding the Performance of Modified Asphalt Binders in Mixtures; Evaluation of Moisture Sensitivity (NCHRP) Project 90-07.

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NOTICE: No freedom from infringement of any patent owned by Dow or others is to be inferred. Because use conditions and applicable laws may differ from one location to another and may change with time, Customer is responsible for determining whether products and the information in this document are appropriate for Customer’s use and for ensuring that Customer’s workplace and disposal practices are in compliance with applicable laws and other government enactments. The product shown in this literature may not be available for sale and/or available in all geographies where Dow is represented. The claims made may not have been approved for use in all countries. Dow assumes no obligation or liability for the information in this document. References to “Dow” or the “Company” mean the Dow legal entity selling the products to Customer unless otherwise expressly noted.

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This document is intended for global use. Published July, 2018. © 2018 The Dow Chemical Company

NOTE: Any photographs of end-use applications in this document represent potential enduse applications but do not necessarily represent current commercial applications, nor do they represent an endorsement by Dow of the actual products. Further, these photographs are for illustration purposes only and do not reflect either an endorsement or sponsorship of any other manufacturer for a specific potential end-use product or application, or for Dow, or specific products manufactured by Dow.

™Trademark of The Dow Chemical Company (“Dow”) or an d company of Dow, unless otherwise specified. DuPont and ELVALOY are trademarks of E. I. du Pont de Nemours and Company or its s.

®

Form No. 890-00101-0718 SMG SMG 13555