Quimikao by Sergio Nuño

QuimiKao, S. A. de C. V. is a company dedicated to the manufacture of surfactants and its derivatives, which are used in different areas of industry. ASFIER is the line of product employed as Asphalt Emulsifiers which are used in the construction and road maintenance area. Our company is located in the industrial area of El Salto Jalisco, 25 km from the city of Guadalajara. QuimiKao was founded in 1975 and is part of the Chemical Division of Kao Corporation Group. The regions where we have presence with the asphalt products line are: Mexico, Latin America, the U.S., Australia and part of Asia. We have a complete laboratory for the research and develop of new products and specific applications which are in line with your needs. If you require any specific information about our products, please contact us.

ASPHALT EMULSIONS Asphalt emulsions are an economical, safe and ecologic alternative for paving and maintenance. The operation is commonly performed at room temperature and zero pollutant emissions. Asphalt emulsions are very versatile and can be designed for special applications and conditions.

TYPES OF EMULSIONS

(According to Regulation D-2397)

CRS-1

CRS-2

CMS-2

CMS-2h

Asfier 100 Asfier 110 Asfier 113 Asfier 121 Asfier 175 Asfier 610 Asfier N100L Asfier N100LV Asfier 208 Asfier 400 Asfier 410 Asfier 510 Asfier N480L Asfier 211 Asfier 240 Asfier 250 Asfier 705

Asphalt emulsion is the dispersion of small particles of asphalt in water to yield an O/W (oil in water) emulsion, although it is also possible to obtain W/O (water in oil) emulsions, where it is water that is dispersed as small particles in asphalt used for special applications. Asphalt emulsions usually have a content of 40 to 70% of asphalt, are brown, and the viscosity increases as the asphalt content increases. The average size of the asphalt particle dispersed in water, ranges between 4 and 15 microns, depending on the type of emulsion and the dispersion technology of the colloidal mill. An emulsion with a uniform particle size is very stable, and when is mixed with an aggregate, the emulsion covers it leaving an homogenous asphalt layer which increases cohesion of the mixture.

CSS-1

CSS-1h

CQS

CRS-1: CRS-2: CMS-2h: CSS-1: CSS-1h: CQS:

The following graph illustrates a distribution of the particle size for a rapid setting emulsion where the average size is 9.2 microns.

The asphalt emulsions are produced utilizing a colloidal mill; however, other dispersion equipment can be used. Hot asphalt and soap solution are forced to pass between a gyrating disc and a fixed stator, this generate a heat interchange between them, that yields an emulsion temperature that is function of the temperature difference and mass quantity between the two; according to the following formula:

Asphalt area

batch process

Asphalt emulsions may be produced by batches (noncontinuous) or through a continuous line process. The batch process is comprised of two procedures, the aqueous phase (soap solution) and the production of the emulsion. As the following figure shows, the soap solution is prepared in a tank where emulsifiers, other additives and water are added. This solution is later sent to the colloidal mill along with the asphalt for emulsion production.

water Emulsifier Acid

emulsion

fluxer

Aditive

asphalt

soap

colloidal mill

ASPHALT EMULSION

Paste product, rapid setting. Paste product, rapid setting. Solid paste, rapid setting. Solid paste, rapid setting. Paste product, rapid setting. Liquid product, rapid setting. Liquid product, rapid setting. Liquid product, rapid setting. Paste product, medium and slow set. Paste product, medium and slow set. Paste product, medium and slow set. Paste product, medium and slow set. Liquid product, medium and slow set Liquid product, slow set. Liquid product, slow set. Liquid product, slow set. Liquid product, slow set.

Asfier Asfier Asfier Asfier Asfier Asfier Asfier Asfier Asfier Asfier Asfier Asfier Asfier Asfier Asfier Asfier Asfier

100 110 113 121 175 610 N100L N100LV 208 400 410 510 N480L 705 211 240 250

Cold Recycling

Sand Mix

Open Graded aggregate

Slurry Seal Slow-Set

Slurry Seal Quick-Set

Microsurfacing

Fog Seal

Prime Coat

Tack coat

Product

Chip Seal

APPLICATIONS Characteristics

Mixtures

Surface Treatments

Dense Graded Aggregate

APPLICATIONS

RESEARCH AND DEVELOPMENT TECHNICAL SERVICES COLD MIX ASPHALT

, as the first manufacturer of fatty amines in Latin America, has a broad line of products suitable for produce asphalt emulsions which are further used in the preparation of asphalt cold mix, as good as a technical area for customer support. It is very important to note that for any asphalt application or Asphalt Emulsion there should be a laboratory design which meets the quality requirements that the regulatory agency or institution establish. Quality requirements for asphalt emulsions (according to ASTM D977 -05): CLASSIFICATION Rapid-Setting

CHARACTERISTIC Viscosity, Saybolt Furol at 25¼C; s.

CRS-1

Storage stability y test; 24 hr, 96

Demulsibility, 35ml, 0.02N CaCl2 ,96

FRS-2

20-100

MS-1

MS-2

MS-2h

HFMS-1H

20-100

Min 100

20-100

Max 1

good

FMS-2H FMS-2hHFMS-2s Min 100

Min 100

Max 1

good

Min 50

SS-1

SS-1h

20-100

Max 1

QS-1H 20-100

75 - 400 75 - 400

Viscosity, Saybolt Furol at 50¼C; s. A

CRS-2H

QuickSlow-Setting Setting

Medium-Setting

Max 1

Min 60

Max 1

Coatingability and wateer resistance: Coating dry aggregate

good

Coating atter apraying

fair

Coating wet agregate

fair

Coating after spaying

fair

Cement mixingtest, 96 Sieve test, 96

Residue by distillation, %

MAX 2.0 MAX 2.0 Max 0.10 Max 0.10 Max 0.10 Max 0.10 Max 0.10 Min 55

Min 63

Min 55

Min 65

Max 0.10 Max 0.10 Min 65

Min 55

Max 0.10 Max 0.10 Max 0.10 Max 0.10 Max 0.10 Min 65

Min 65

Oil distillate by volume of emulsion, %

Min 65

Min 57

N/A Max 0.10

Min 57

40 - 90

Min 40

1-7

Test on residue from distillation Test: Penetration, 25¼C, 5cm/min,cm

100 - 200

Ductility, 25¼C, 5cm/min, cm

Min 40

Solubility in trichloroethylene,% Float test, 60¼C,s A

Min 97.5 Min 97.5

100 - 200 100 - 200

100 - 200

40 - 90

100 - 200

40 - 90

Min 40

Min 97.5 Min 97.5 Min 97.5 Min 1200

Min 97.5 Min 97.5 Min 1200

Min 97.5M Min 1200

Min 40

in 97.5M in 97.5M in 97.5M in 97.5M Min 1200 Min 1200

This test requirement on representative samples is waived if successful application of the material has been achieved in the field.

in 97.5

Slow or Super Stable Asphalt Emulsion (SS-1 or SS-2) Show Asphalt Emulsion (ECL-65) or Superstable (ECS-60) Asphalt

60-65%

Water

30-34%

ASFIER 211 ,240 or 250

1.20%

HCl to adjust pH between

1.7-2.0

Medium setting Asphalt Emulsion (MS-1) or Slow Setting Asphalt emulsion (SS-1) for dense Asphalt mix: Medium Asphalt Emulsion (ECM-65) or Slow (ECL-65) Asphalt

65%

Water

35%

ASFIER 208, 410 or 400

0.6 a 1.2%

HCl to adjust pH between

1.7-2.0

SLURRY SEAL AND MICRO SURFACE Asfier N480L and Asfier 510

Emulsions prepared with ASFIER N480L perform extremely well for these two types of applications. They create a cohesion which allows for traffic as soon as an hour after the application, or less, if weather conditions are favorable.

HOW IS A SLURRY SEAL AND MICROSURFACE MADE? 8

All components are loaded and mixed in one machine. This machine mixes them in the correct proportions and lays them as well.

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.

Aggregate (ground material) Fine mineral Liquid additive Band transporter Asphalt emulsion Water (water plus additive) Mixing box Mix Spacing box Applied slurry Water irrigator

1 2

5 8

SPRAY SEAL SURFACE TREATMENT (PEA GRAVEL) The spray Seal or Pea Gravel spray is an emulsion spray application with one or many layers of material of a uniform granulometry.

Different types of Seals monocapa o sencillo 2 1

empacado 3 2 1

multiple 4 3 2 1

ÒSandwichÓ 3 2 1

Advantages of the seal application: Renews worn out surfaces Provides an antiskid surface Marks lanes and shoulders Increases crack resistance Allows for traffic to resume quickly It is an economical surface treatment It may be applied on all types of roadways.

Emulsion characteristics: Adequate viscosity Rapid Set Meets adequate residue penetration Displays adhesiveness to stone Usual dose: 0.8-1.5 lt/mt2

Emulsion use advantages: Low risk of burning No fumes Acceptable odor Low sensitivity to cooling Good adhesion Economical

TYPICAL FORMULA Asphalt

630-65o Kg.

Water

350-370 Kg.

ASFIER:100, 110,113, 121 175, *610, N100L and *N100LV CHLORHYDRIC ACID TOTAL

2 Kg. TO ACHIEVE A pH of 2 1000 Kg.

* These Asifers require a Higher dosage

Limitations or disadvantages: Loss of aggregate / damage to vehicles Noisy, doesn’t allow for corrections

EMULSION FOR PRIMER SPRAY APPLICATION

One of the most common processes used in road construction is the spraying of primer. This consists of a hydrocarbon binder over a granular layer previous to laying the rolling mat or an asphalt treatment. The main objective of this treatment is to protect the conditions and characteristics that have been achieved on the base, aside from providing continuity between the granular base and asphalt material, and providing the granular base with a certain degree of impermeability and protection. 10

The following may be used for priming: Liquefied medium set asphalt type FM-1 (More solvent asphalt, kerosene or diesel-like) Asphalt emulsions with a generally slow or superstable set. A special emulsion developed at the laboratories, utilizing a high penetration hydrocarbon.

Recommendations 路It is recommended that the emulsion viscosity be between the 10 and 50 SSF range. 路Retention on mesh no.20 must have a maximum of 0.1%. 路The water percentage must be between the 45 to 55% range. A high penetration asphalt is used for these types of emulsions.

PAVEMENT RECYCLING EMULSION (RAP)

Asphalt pavement recycling has become one of the most popular pavement rehabilitation alternatives around the globe. There are a vast variety of recycling methods targeted at handling the different specific problems pertaining to pavement and its structural needs. Due to environmental protection, one of the most important technologies to be developed is cold mix asphalt recycling, whether onsite or in the plant. In order to accomplish this, special asphalt emulsions have been developed to regenerateâ&#x20AC;&#x201C;as much as possibleâ&#x20AC;&#x201C; the original properties of the worn-out asphalt. Therefore, before recommending any of these techniques, a specific design is required for each recycle.