BITAFAL SPECIAL ASPHALTS ARCHives - Page 3 of 6

surface treatments and winter

Reviewing the notes from previous years, we are When winter with a recurring theme. The gravillados in winter and care must be taken to prevent landslides.

This year is no exception, exactly the opposite, there is more surface treatments works underway in all previous years and landslides came in several of them.

Como siempre, la primera culpable es la emulsión, que es exactamente la misma que se usó días anteriores, con 10 o 15°C mas y no hubieron inconvenientes. Debemos entender que la veda que dispone el Pliego de Vialidad tiene su fundamento técnico en evitar estos desprendimientos si se trabaja de forma “tradicional” ya que las condiciones de curado de las emulsiones se ven seriamente modificadas con el frío.

Moreover, we note with pride that works in which they have implemented multiple treatments Latched (TMT®) and has been used exactly the same emulsion in defective works, do not have a single stone detachment.

We leave the note describing best practices to avoid problems of landslides in winter: SEVEN RECOMMENDATIONS FOR USE OF EMULSIONS IN WINTER

We recently implemented TMT® in several plays and come behaved very satisfactorily. We can highlight a stretch of Route 23 and Route 94 by Eduardo Martinez, also CVC on Route 8 and Route 96. Cujo in All these works were carried out with emulsions in May and have had no problems.

For more information about running TMT® contact our technical department on 0800 8425.

We attach some photos of the above sections.

New equipment cold micro agglomerates in Uruguay

Serviam continues to incorporate technology for road maintenance and has incorporated a new team Romanelli UHR 900 E-FLOW for the execution of cold set micro.

In a big bet for the local market, served It includes equipment, capacity and engineering for the development of new technologies paving in our country. The micro-agglomerates involve knowing other dimensions cold asphalt mixtures, emulsions and executing treatments. This development has incorporated new procedures both laboratory and field to try to control as many variables as possible and ensure the quality of work performed.

Our company is proud to have participated in it, trying to solve in the best way the problems that always arise in the application of new technology. We appreciate the confidence provided for the design and supply of the emulsion again BITAFLEX MICRO 62 P25 with which the designs of the micros and subsequent pilot test were performed.

Then we bring some photos of the first tranche executed, about two km long on Route 104, Maldonado. In the same well calibrated equipment, know the best enforcement practices from experts in the matter from Brazil, two types of Micro (one thicker than the other) were tested for their performance in the coming months. We hope to approach them progress of the work done with this technology on Route 60 near the spring.

World Of Asphalt 2018

Bitafal group was present once more in the world's most important asphalt event, this time at the George Brown Convention Center in Houston gigantic industrial city.

For 6 to 8 March was held the annual event World of Asphalt Houston, with a significant international presence of different industry players and roads. Also coincided with the event AGG1 Aggregates Academy & ExpoWith more than 200 aggregates and paving talks and an exhibition showing the world the latest technologies and innovations in equipment, products and services related to aggregates.

Houston fue sede este año del evento World of Asphalt, justamente una ciudad muy influenciada por el oro negro, que desde su descubrimiento en 1901, se ha convertido en su pilar económico más importante. Houston hoy posee 5.000 empresas relacionadas a la energía y la ciudad es considerada por muchos como la ‘Capital de Energía del Mundo’. Cualquiera que haya transitado por esa ciudad o ve las imágenes de internet, se da cuenta de su magnitud.

A modo informativo, Houston cuenta además con el complejo médico más grande del mundo, el Texas Medical Center (TMC), con sus 54 instituciones afiliadas y sus 15 hospitales; y con el mayor centro de investigación espacial en el mundo, el Space Center Houston de la NASA. Incluso “Houston” se jacta de ser la primer palabra dicha desde la luna en 1969.

All that grandeur and glitz that the city (and all USA), could not be less in the event, which featured major local and international exhibitors who did not hesitate to bring its huge crushers, pavers, boilers and heavy machinery. Furthermore, the presence of the most important players in the world of asphalt and all products and services related added.

Here are some of the photos of the event.

More photos The National Stone, Sand and Gravel Association

RECYCLED foamed bitumen - ROUTE 102

The CVC recently started with recycling Route 102 using recycling technology in situ foamed bitumen. Thanks to the high yields of the technique is expected to have completed the tasks leaving a strong and flexible for future interventions take place only in the surface layer basis in about a month.

BITAFAL group HIGH PERFORMANCE EMULSION -BITAFLEX IRRIGATION 65 P40 -

The work consists of milling the previous route, due to the large cracking had the same block, the application of cement, recycled asphalt with added foaming and water, compaction and final grade. Then applying a curing irrigation awaiting a thin asphalt with conventional asphalt.

On the one hand, this intervention makes it clear the maintenance backlog that had this route of great importance for heavy vehicle traffic at the entrances of Montevideo and to the port. We must become conscious that interventions at the right time require less investment in maintenance.

De todas maneras, esta experiencia en conjunto con varias a nivel nacional, demuestran una vez más la importancia de estos equipos de reciclado en el aprovechamiento de nuestro patrimonio vial. La reutilización de materiales de calidad aplicados con maquinarias de alta tecnología abre nuevas fronteras en la construcción de nuestros caminos y carreteras.

Share photos of the work in progress.

HIGH PERFORMANCE EMULSION -BITAFLEX IRRIGATION 65 P40 -

Already there are several companies committed to quality work using the emulsion IRRIGATION BITAFLEX 65 P40 ensuring the life of bituminous treatment.

This product is being usad in various works in the country with excellent performance and in the first summer of use without detachments or risks rising by tires.

It is formulated with a high content of polymers that provide high cohesion and flexibility to the binder. During the summer and especially to the north, the emulsion P40 is being developed with hard asphalts which ensure suitable consistency and avoid potential exudates (with subsequent lifting) Excess binder.

We invite you to view photos of applications work

EMULSIONES BITAFAL IN WORK

emulsions IRRIGATION BITAFLEX 65 polymer modified P12, P25 and P40 and the 50 PRINT BITAFAL They are having a great performance in all works of surface treatment that is using the different areas in the country both in their application and end use.

They have good viscosity to prevent runoff and once in contact with the aggregate achieve high cohesion within minutes. The asphalt binder, adjusted penetration according to the time of year when we are working and the area of the country where the work is executed, is further modified with elastomeric polymers that provide excellent resistance to traffic and weather.

The hundreds of km of works in major routes as 10, 13, 15, 19, 20, 23, 26, 45, 57, among others, are witness to the above and shown BITAFAL engagement with Uruguay road.

We invite you to view images of some of the newly built surface treatments.

EMULSION BITAFAL PRINT 50 SPACE STILL WINNING

Technical, economic and environmental advantages of the emulsion 50 PRINT BITAFAL They are positioning it against diluted MC1.

More and more works in Uruguay who are using the emulsion PRINT 50 as a protective layer of granular and stabilized bases. It has a very good ability to penetrate most bases used. Furthermore the rate of penetration and curing is significantly better compared to MC1, not to mention that all that is released into the atmosphere and the soil is water and not solvents.

We emphasize the importance of surface moisture of the base does not exceed 1% for the performance thereof is optimal. If the base is wet, means that the pores are filled with water and despite the PRINT 50 is water based, it will not be able to penetrate and surface.

Any questions or concerns about using it please consult the 0800 8425 or bitafal@bitafal.com.uy.

Work IX Congress of the primer Vialidad_ EMULSIONES: Technical and Environmental Improvements

ASPHALT SUPPLY SECURITY

We present a new modality for non stop work because of the lack of asphalt cement.

BITAFAL It offers its ability to heated gathering more than 1,200 tons, its credit line and regular delivery service asphalt Ergont Transport so you can work in peace. For this we offer two alternatives, a service asphalt storage and backup service stock so that in case of missing asphalt, his work can continue.

In case you want more information we invite you to enter the following link and we will shortly.

Consultations Insurance Supply

EXPERIMENTAL SECTION: DIFFERENT BASES ON CEMENTED taxiways.

An experiment carried out 18 months ago shows how the use of bituminous treatments reduce the reflection surface cracks.

C.V.C held in Route 69 in Montevideo in early 2016 an interesting experimental section of Portland cement stabilized base which they were applied different layers of rolling to see its evolution:

1. Hot asphalt layer of asphalt AC20 3cm

2.- Bituminous treatment Simple -TBS- fog irrigation (14-20mm arid emulsion IRRIGATION BITAFAL 65 )

3. Cape seal (TBS with aggregate and emulsion 14-20mm IRRIGATION BITAFAL 65 + Micro Type II TMN 5mm emulsion BITAFLEX MICRO 62 P25)

4.- microsurfacing Type III (TMN 10mm emulsion BITAFLEX MICRO 62 P25)

After 18 months in service you can determine that all taxiways are used in very good condition overall and are alternatives to consider when protecting a stabilized with cement.

As reflection of shrinkage cracks in the cemented basis substantial differences exist between each of the layers used that detail below.

STABILIZED BASE:

The cement stabilized performed looking for a simple compressive strength of between 15 and 20 Kg / cm2. He was executed in place with a cold recycler and no crazing was performed. Irrigation curing was performed with emulsion IRRIGATION BITAFAL 65 and gravillín.

Wearing courses:

After 18 months of service shows that:

1. Hot asphalt layer of asphalt AC20 3cm. The cracks in this case are transverse to the roadway between 3 and 5 m. Also it is shown in much of the length of the longitudinal crack in the shaft which corresponds to the overlapping of the execution of the cement base.

2. Treatment Bituminous Simple irrigation fog (14-20mm arid emulsion IRRIGATION BITAFAL 65 ). Fissures surface but are difficult to identify the observed are between 9 and 18 m and no longitudinal crack is identified. In some identified fissure could be seen a slight loosening of aggregate.

3. Cape seal (TBS with aggregate and emulsion 14-20mm IRRIGATION BITAFAL 65 + Micro Type II TMN 5mm emulsion BITAFLEX MICRO 62 P25). In this case the cracks are clearly visible because the smooth surface which achieves the Micro Type II. They are transverse between 5 and 12 m apart. Nor longitudinal fissure of the overlap of the base shown.

4.- microsurfacing Type III (TMN 10mm emulsion BITAFLEX MICRO 62 P25). In this section transverse cracks between 2 and 3 m apart and longitudinal cracks of overlap almost the whole section are identified.

PRIMARY CONCLUSIONS (First 18 months)

• Bituminous simple treatment is the wearing at the time shows better performance in the reflection of cracking, not so much so in the comfort of the user (and neighbors) because it is quite noisy. (Patch initial sand: 3.75 mm). Something that could easily be solved with a finer stone or a sealing treatment.

• Then follow the Cape Seal with a very good performance against the reflection of cracks which obviously is contributed by the Bituminous simple treatment. In this case the sealed surface gives quiet and safe running. (Patch initial arena: 0.95 mm)

• The folder has a good asphalt performance but still has more Cracking the Cape Seal for security and is thinner than the rest of the taxiways (Patch initial arena: 0.45 mm) Macrotexture. In turn it would have to make an economic comparison against the cold techniques, but at the same cost would be reasonable to use treatments or Cape Seal.

• The Micro Type III had the worst performance against reflection even crack your Macrotexture is suitable (Patch initial arena: 1.10 mm)

For future tranches of these features we suggest:

Perform 1_ TBS with modified emulsion BITAFLEX P25 or P40 65 IRRIGATION to further reduce the reflection of cracks and have more cohesion in the asphalt to prevent premature detachment.

2_ Test with TBS with a little fine stone (10 to 14 mm) and made in Australia and New Zealand, to have good resistance to cracks without neglecting the noise generated.

3_ Perform a double treatment Trabado (TDT) with modified emulsion BITAFLEX P25 or P40 65 IRRIGATION to contemplate the above as well as high yields of work and minimal waste of materials.