THE WORKS OF THE PPP CIRCUIT 7 BEGAN

THE WORKS OF THE PPP CIRCUIT 7 BEGAN

Grupo San José trusts Bitafal to supply asphalt products

The Group, made up of the companies Serviam, CVC, Interagrovial, plans to duplicate the road in the section of Route 3 between Routes 1 and 11, and the construction of the Route 11 bypass to the city of San José, as well as the construction of a new 400 m bridge over the San José river.
Bitafal will supply the modified asphalt and emulsions for the execution of the pavements of the work that the PPP must maintain for 20 years. For this, both the black base layers and the tread layers with modified asphalt will be made.
Last monday February 1st A construction commencement ceremony was held, with the presence of the Minister of Transportation and Public Works, Luis Alberto Heber, the undersecretary, Juan José Olaizola, and the mayor of San José, Ana Bentaberri.
An execution period of 3 years is estimated for this project, which will be financed by Grupo San José S.A. with the support of CAF, CAFAM and BROU, which amounts to USD 70 million and 20 million for the rest of the contract, destined to maintenance.

Bitafal will supply the modified asphalt type PG 70-28 for base coat and type PG 76-28 for rolling as well as modified emulsions used for bonding and accessory works. We will keep you updated on the progress of the work.

Road maintenance

Road maintenance

We made a tour of the fronts of works which are being used Bitafal products.

This time we made 1400 km traveled by different works in progress, or a year of operations, for the purposes of check the technical situation and being in contact with the realities of the same.
In general all routes flown are in good condition but we have to convince us that interventions on the roadways when done in a timely manner so substantially lengthen the quality and durability of our floors. On the other hand we must continue to innovate and look for continuity mechanisms that do not generate electoral cycles ups and downs in the construction industry.
1) Laying asphalt mixture with modified BITAFLEX AM3 on driveway route 5It executed by the company HYG, great work rate and tidiness, a substantial improvement on driveways executed noticeable, providing a long service life of the road.
2) Then we visited the works on route 3 Pass of the Port to Young about 6 years ago and made it in very good shape and visited the recent works carried out by the firm Gofinal / Lemiro Pietroboni in retreading executed asphalt modified asphalt BITAFLEX AM3. I became essential that retreading modified asphalt because it was the only stretch of Route 3 in the vicinity of Young was fatigued.
3) Just finished running route 25 also modified asphalt BITAFLEX AM3. We were accompanying the company Colier Opening of the section of Young to Route 90 which has a traffic of 300 trucks per day wood and general condition of the road it was very bad due to the age of the last interventions.
4) They are starting the work by signing the INCOCI route 90, Which is stabilized with portland cement and seal with a surface treatment made with highly modified emulsions.
5) On Route 30 Route 3, Diaz Alvarez signature is running treatments emulsions IRRIGATION Bitaflex 65 P40, Achieving aggregate adhesion / asphalt very good and well behaved at the high temperatures of the region.
6) We participate in the cuts ribbon inaugurating bridges all route 30, Works of very good quality and excellent execution deadlines were completed 7 months before the deadline, congratulations to the four companies that participated: Saceem, Incoci, Grinor and Cujo.
7) Bases route 30 are being prepared by the firm Tracoviax in its entirety for treatment reinforced emulsions highly modified type IRRIGATION 65 P40 as required by the standard and the respective region.
Sieve executed with bases are being stabilized very well and really congratulates them for the arduous task of mastering the basalts of the north.
8) We review the overall asphaltic treatments region surrounding the city of Artigas and we can certify that his condition is very good. We visited the section executed by Incoci on Routes 30 and 31 as well as performed by Tracoviax on Route 30 and kept in good shape, without exudates or potholes. They are very well executed with the correct dosage, presenting a texture that can be seen in the photos taken.
9) And returning, we passed the landmark CHIPING executed by Colier on route 5 in the sections of hits on Route 43, San Gregorio de Polanco. That stretch was performed for the purpose of a necessary and immediate intervention to last 1 or 2 years, as we have been 8 years and continues to provide adequate service. Only they have been some meters bridging sealing.
We have to convince us that interventions on the roadways, when done in a timely manner, so substantially lengthen the quality and durability of our floors.
That calculation is handled that for every dollar we spend on maintenance, spare 8 future dollars, in this and many other cases are checked handsomely.
We have cases of the Chiping de Ruta 8 of Serviam 4 years, the retreading 2 cm asphalt Arnel Bitaflex AM3 on route 8 which it lasted more than 10 years and only last year was milled and Recapo by the firm Techint. It is very good for our company to see the progress of the work and make returns to our friends.
Until next time.
Whitetopping in Route 3 Consortium INCOCI - CUJO

Whitetopping in Route 3 Consortium INCOCI - CUJO

Improvements are being made on the stretch of Route 3 between the city of Trinidad and Paso del Puerto. The work done by the consortium INCOCI-Cujo is running a retreading concrete using the technique of whitetopping attached.

In a total of 52km a concrete layer thickness 14cm on the existing pavement asphalt will tend, which previously receive the recoating is milled to recompose the transverse profile, texturized to ensure adhesion with the new concrete, hidrolavada and swept with compressed air.

The consortium is responsible for the whole process: grinding stone, sand extraction, design and manufacture of the concrete mix, transportation, laying, and curing joint sawing.

Regarding the concrete paste, it is a mixture of 5MPa characteristic flexural strength, containing microfibers and macrofibers polypropylene, which gives the material strength values ​​of plastic cracking and toughness which naturally has, reaching develop a minimal residual resistance 1MPa after having fissured by reaching its breaking strength.

To date, it has already paved 10km, and it is expected that the entire section is completed within twelve months. In banquinas a layer of granular material and subsequently CBR80 double bituminous treatment will be placed. new signaling is also installed vertically, and the horizontal signal will voiced edge.

Note courtesy of Jean Pierre Bidegain - Incoci

SUCCESSFUL APPLICATION RECYCLING ASPHALT WITH FOAM

SUCCESSFUL APPLICATION RECYCLING ASPHALT WITH FOAM

We can proudly say that the Uruguayan road has become unrivaled in the last five years. The design engineers have proposed and accepted new technologies, builders have art equipment incorporating the first world countries and we are encouraging, but we shake the pulse, to innovate.

Who would have thought that in our country the technologies to be introduced as modified asphalts based massively?

Who would have thought that the surface treatments and micros with modified asphalts would apply on routes first order?

Who would have thought it stabilize soils with continuous and mobile equipment was to be imposed so quickly?

Only the technical results obtained are certifying all these advances.

The most recent milestone of new technologies pushed him over the past year the company Hernández and González S.A. making a bet unmatched in his work of Route 3. Sparing no technical or economic efforts, the company conducted a site recycling pavement with asphalt foam backed administration. In last December he was terminated the reference work and drove around in full, being able to observe the same high quality in all its aspects.

an expansion platform a recycling of all of the existing road asphalt foam and asphalt mixture of 5 cm thick, several sections with widening of a third rail verges stabilized in situ with cement and waterproofed with asphaltic treatment was performed modified emulsions.

All this work was done in less than 100 working days. As we all know, when Hernandez is proposed, it does, but beyond personal effort, its staff and technology built in Germany show that can be reconstructed 34 km of a road completely new with a guarantee of over 20 years only 100 working days.

This is the reality we want to emphasize, if we want a Uruguay with very good infrastructure, we must use the best technology, the most productive and advanced end up being the most economical and durable.

This result is part of an innovation process together among the companies that participated in the Wirtgen Technology Days 2014 held in Germany, which agreed to bring in conjunction with H & G, Meliter, CVC and Tradinter a South African technician for the purpose of a conference the virtues of applying technologies foamed bitumen (Bulletin October 2014).

This process continued with the addition of equipment and technologies required for their application and hard work in laboratory design all involved. They were also required many hours of training, briefings and of course hard to successfully implement this advanced technology work in the country.

As anecdotario plus all innovations in this work, conducted jointly develop gravillados hot applied in July, during the winter closed season with a very good technical and result only applied at low temperatures in our country (Bulletin July 2016)

All photos: ON HERE

GRAVILLADOS HOT IN WINTER

GRAVILLADOS HOT IN WINTER

Last week with the company H & G successful tests gravillados hot in the shoulders of Route 3 were performed.

Because of the ban at this time governing a special binder it was developed to achieve full adherence of the aggregate used avoiding disadvantages of premature landslides and excess binder that can lead to exudates with the first warm days.

The developed binder BITAFLEX TERMOSEAL has various modifying additives to achieve immediate adhesion of stone (even when it contains dust) while maintaining a high viscosity to prevent exudates in warm periods.

This technology is used in Australia and New Zealand in winter periods with lower temperatures at local performing well and avoiding closures work both delay the execution of the works.
For implementing the binder is preheated and irrigated with sprinkler truck about 110 ° C noting that the range of irrigation fully open. There are no contraindications if it is cooled before the gravel is applied. In the video of the execution pe can be observed that the asphalt after application reaches 14 ° C and gravel applied almost 20 minutes after adhered smoothly.
In case of dirty stone, it must be dried by passing it through the asphalt plant until it reaches a temperature higher than 105ºC. In this way, the separation of the possible dust adhering to the stone is guaranteed (which once released, will not interfere during the irrigation as can be seen in the video). The graveling was carried out taking all the precautions corresponding to a work with hot binder and with ambient temperatures below 14 ° C. Once the binder and the gravel had been applied, it was compacted with a pneumatic compactor, making about 5 passes at 8 km / h.

The results were more than satisfactory in the first section executed, releasing the traffic immediately after compacting. To demonstrate the high adhesion between the BITAFLEX TERMOSEAL and gravel, it was circulated by the roadside traffic route without receiving any detachment. This technology can be applied even with cold gravels prewrapped with special asphalts or suitable emulsions prepared in times of good weather during the winter and apply automatic double spacing.


These tests were conducted in the presence of Ing. Jorge Galusso and MTOP assistants for the purpose of studying in situ the performance of technology.

VIDEO: https://youtu.be/WboY2CqnIKw

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