Meeting Vegvesen-Mesta Trondheim, 21 st January 2014 How can soft ice cream reduce your cost for road maintenance? Ecosel AsphaltProtection: a deicing brine additive reducing frost damage
AkzoNobel Salt salt & additives Production: 6 mln tons/year, vacuum salt Hengelo, Delfzijl, Mariager Applications: CT (80%), Specialties (15%), Deicing (5%) Road salt: Home market: NL, B, DK Extended to: N, S, D, A, CH (I) Products: Vacuum salt Dried vacuum salt Ready-to-use brine Additives: Under brand name Ecosel Ecosel BioCare: cyanide-free anticaking agent Next in line: brine additive 2
Road salt market, Europe Market Trends Market size structurally flat on average but fluctuating from year to year depending on weather conditions Trend to more European tendering Increasing contractual obligations as clients are further seeking supply security Wet spreading and brine spraying replacing dry spreading Imports of salt from outside Europe due to limited source in severe winters Higher price level attracts new players Different types of salt accepted per region/country Increasing environmental concerns Key Market Drivers Total: 9,000 kt Price level is determined by availability and demand Reliability of supply and flexibility Service quality Implications for AkzoNobel Strategic stock concept to mitigate fluctuation demand Opportunity to differentiate through sustainable innovation Ecosel BioCare: cyanide-free anti-caking agent Ecosel AsphaltProtection: preventing frost damage Other additives to brine or salt to improve performance Logistic optimization (salt and brine) 3
Frost Damage Cracks Raveling 4
Mechanism of frost damage Water penetrating in cracks or voids Volume expansion due to water freezing Additional stress leads to deterioration 5
Consequences of frost damage Picture: Rijkswaterstaat 6
Surprisingly we found 7
Field Test with Road Authorities 8
Project team Road Authorities & Scientists Prof. Dr. Markus Stöckner HS Karlsruhe, Architektur & Bauwesen Participants Rijkswaterstaat, The Netherlands Vejdirektoratet, Denmark Trafikverket & Mesta, Sweden Land Tirol & List Salzhandel, Austria Users Vegager in, Iceland MOW Flandres, Belgium Mesta, Norway Marek Skakuj Heller Ingenieursgesellschaft Darmstadt Ed de Jong AkzoNobel Salt, R&D René Demmer AkzoNobel Salt, M&S 9
Salt 10
Heller & TÜV Schniering: 3 million pictures analyzed Business unit Footer 11
Test results 2013: up to 50% less raveling Reference, slow lane Additive, slow lane Reference, fast lane Additive, fast lane 12
Factors influencing road damage Statistical model Lane (fast/slow) Asphalt type Asphalt age Initial raveling Additive Country Karol Opara Polish National Academy of Sciences Warsaw 13
Influence of the additive: up to 80% less frost damage 14
Our product: Ecosel AsphaltProtection Key Features Additive to de-icing brine: 1% per unit weight NaCl Prevents formation of hard ice inside asphalt pores Reduces frost damage to roads substantially Fully harmless to people and nature Eco-premium product Customer Benefits Measured: up to 50% less winter damage to road surface Substantial savings on road maintenance and repair Asphalt lifetime extension Contribution to traffic safety 15
See you at PIARC, Andorra: 4-7 February Business unit Footer 16
Thank you for your attention! For further information, please contact: AkzoNobel Industrial Chemicals, Salt Rolf Breslau Telephone: +31-33 467 68 32 E-mail: rolf.breslau@akzonobel.com
Ecosel AsphaltProtection Appendix 18
1. Laboratory tests Plaatjes Grafiekje 3 patenten 19
2. Field tests 20
Routes Field Test 2012-2013 21
Raveling Stöckner s definition LIGHT raveling MEDIUM raveling HEAVY raveling 22
An impression 23
High resolution data 24
Surface distress evaluation Manual assessment Software assisted 5 operators x 3 months Accuracy Coding per 1 m 2 zero light medium heavy ravelling Quality & Objectivity Strict coding guidelines (Stöckner) Self control, subjectivity < 5% Analysis per 50 m section 25
Data visualisation 26
3. Results Overview per country Assumption: equality of Asphalt type Asphalt age Initial ravelling 27
Results The Netherlands Surface area (%) with increased ravelling Slow lane 50% less new ravelling on additive section Fast lane 40% less new ravelling on additive section 28
Results Denmark Surface area (%) with increased ravelling Slow lane 46% less new ravelling on additive section Fast lane 22% less new ravelling on additive section 29
Results Sweden Surface area (%) with increased ravelling Slow lane 59% less new ravelling on additive section Fast lane 41% less new ravelling on additive section 30
Results Austria Surface area (%) with increased ravelling B181 vs B177 92% less new ravelling on additive section Note: roads in different valleys! 31
Factors determining raveling occurrence Pavement age Asphalt type Lane & traffic density (fast or slow lane, vehicle count & load) Initial raveling (present at the start of the experiment) Weather (number of freeze-thaw cycles) Reference or additive section Country (container parameter) Pavement age Asphalt type Traffic density Initial raveling 32
4. KOAC-NPC KIWA Results 2011-2012 Denmark Results 2012-2013 Denmark 33
Results KOAC-NPC 30% - 50% less ravelling 34
Preliminary Field Tests 2011-2012 35
5. Safety tests Results KOAC-NPC skid on A4 Results KOAC-NPC skid in lab Picture window blinding 36
Safety test: skid resistance On a laboratory scale: On a highway: No slipperiness until 320x dosage! No slipperiness until 20x dosage! 37
6. Dosing equipment Required dosing Applied to NaCl brine 1% additive per unit of weight NaCl Dosing dependent on FS ratio Dosing unit (optional) Supplier: ProMinent Two sizes available Up to 25 m³/h 38