PG 70-28 Archives

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.

BITAFLEX PG AIRPORT RUNWAY 70-28

Works are currently suspended until after Tourism Week.

The CVC company is carrying out the renovation of the main runway of the Laguna del Sauce Airport in Maldonado. For this they are applying high technology for leveling surfaces using a 2m milling machine with control by 3D robotic station to have a base according to the project requirements, correcting imperfections, subsidence and dimensions. Then apply a layer of 7 cm thick asphalt mix with modified asphalt BITAFLEX PG 70-28 applied by two terminating “high compaction” that work simultaneously. We thank CVC and Corporación América for their trust in supplying the modified asphalt cement.

The milling of the track is carried out in sections between 500 and 600 m long continuously, corroborating in each of the passes that the project requirements are being met. The removed material is being used for the construction of the airport's auxiliary roads, which did not exist. After milling, it is necessary to thoroughly clean it to ensure the adherence of the asphalt layer to be applied. For this, good logistical work is first necessary to minimize traffic on loose material, then a good sweep, blowing and scraping in case if necessary.

For irrigation asphalt layer adhesion is performed with emulsion IRRIGATION BITAFAL 65 and then the laying and compaction of the asphalt mix in 7 cm thickness with modified asphalt BITAFLEX PG 70-28 using two pavers in parallel. One of them equipped with a multiplex ruler with 3 sensors on one side and a laser sensor (or copying skid) or electronic pendulum on the other; the other paver has automatic leveling through laser copier sensors on both sides or pendulum and sensor that copies what was done by the first one and extends outwards until completing the programmed width. The recoat width is between 9.26 – 10.26 m per shift to minimize cold joints on a runway that is 45 m wide. It begins with a central strip of 4 m mounted on the slope break of the runway axis (with broken plate in the middle regulated at 1.5% cross slope) and an adjoining one towards one of the sides of 5.26 m (second regulated finisher at 5.40 m to mount about 10-14 cm on the hot joint); this completes the 9.26 m. Then it follows with widths of 5.00 m for the paver equipped with multiplex (corrects small deviations in the longitudinal profile) and 5.26 m in the second paver (5.40 m to absorb the assembly in the hot joint). Towards one of the sides, the total width of 45 m is completed with a single paver regulated at 5.00 m wide.

In addition to these works, repairs are being made to the concrete and asphalt pavements of the aircraft parking platforms, improvements to runway accesses and runway intersections – level transitions, replacement of edge lighting systems and runway thresholds. – AGL (Airfield Ground Lighting) as well as the adaptation of the ALS (Approach Lighting Systems) for runway 08-26 and other visual aids. The areas of the runway Resas are also being readjusted to the latest ICAO requirements in terms of extension and levels, to fulfill this task some 30,000 m3 of soil movement are estimated. The deadline to complete all the works is 4 months, with completion estimated for the month of June.

* We thank Engineer Horacio García Terra from CVC for the collaboration provided for this note

ADVANCES IN ROUTE 14

Road Circuit 3 advances according to the schedule foreseen in the rehabilitation of Route 14.

The “Circuit 3” Public-Private Participation project in charge of the COPASA and ESPINA consortium comprises the sections of Route 14 that go from the city of Mercedes to Sarandí del Yí. There are about 300 km of road rehabilitation using cold recycling technology with Portland cement and a subsequent 4 cm tread with the new modified asphalt BITAFLEX PG 70-28 provided by Grupo Bitafal.

In addition, the construction of a bypass to the city of Sarandí del Yí, the construction of two new traffic lanes in the city of Trinidad and the construction of a new section that connects Route 14 with Route 3 is planned.

This Route that crosses our country practically in the center has an important weight for the productive activity, foreign trade and the productivity of the companies that export through the port of Nuevo Palmira and especially for the pulp production plants of UPM and Montes del Plata. The situation of the same was diverse, sections in bituminous treatment and sections in asphalt layer with variable widths in all their extension.

The new project involves a widening in several sections together with their respective bridges, correction of the layout, planimetric improvements to increase the average speed as well as reinforcement of the structure and a smooth and safe running surface.

Currently there is a large deployment of teams and work fronts throughout the route. Many national companies are doing a great job in the construction of their respective sections or bridges. Idalar, Cujó, Incoci, Díaz Alvarez, Molinsur, CVC, Frivial, Saceem, Espina and other subcontractors are working at the same Impact.

All sections have a widening and recharging front for granular material, then a 20 cm cold recycling front with Portland, then an emulsion curing irrigation IRRIGATION BITAFAL 65 and gravel and finally a paving front applying a 4 cm thick asphalt mix with modified asphalt BITAFLEX PG 70-28.

In Bulletin # 108 of last November we anticipated some aspects of the work such as the incorporation of technology for example: 4 m rules for pavers, automatic control systems for motor graders, oscillating compactor rollers, among others, as well as safety and neatness of the works.

In addition to this, the works are being carried out at a very good pace and it is expected that by the middle of this year a large part of the sections will be completed.

Once again, we thank the Consortium and the contracting companies for the trust they have given to supply such an important input as modified asphalt and emulsions for a road work of such magnitude.

ASPHALT PG70-28 ROUTE 14

Making good progress rebuilding Route 14 through the PPP mechanism by the Consortium Espina-Copasa

The consortium has six work fronts are doing widening platform, recycling with cement existing pavement 20 cm and placing an asphalt mixture with modified bitumen 4 cm.

Asphalt selected by the Consortium is a modified asphalt type PG70-28E supplied Bitafal. It is a AM2 according to IRAM 6596 standard but very close to a AM3. We invite you to know details of progress.

The excellent quality of the cement asphalt type PG70-28E it has been shown in a recent study of different mixtures were made in the 12th Congress of the Road Uruguaya. The same improvement was obtained 3 times in both the resistance to permanent deformation as compared to fatigue over conventional asphalt type AC-30. This classified as asphalt for heavy traffic (Extremely Heavy) AASHTO T350.

We had the opportunity to visit the front CVC work of the company, where they could see the different stages of the reconstruction of Route. A first cleaning stage and widening strip, then the recycling train with portland cement to which was followed by a curing irrigation Emulsion Bitafal Riego 65 and finally applying the front paving asphalt mixture with PG70-28E.

In the other sections we visited this time we see the company Frivial focused on clearing embankments to improve longitudinal profile of the route but turn has a front cleaning, widening and recycling and the company Emilio Diaz Alvarez preparations to start recycling and near the intersection with Route 5. the front paving of this company is doing the stretch peach-Trinidad at a good pace.

We want to highlight the incorporation of technology from different companies, 4 m rules for Pavers, automatic motor grader control systems, oscillating roller compactors, among others, as well as safety and tidiness of the works.

We thank the Consortium and contractors the confidence provided for supplying important input as is the modified asphalt and emulsions both common or modified. We are already preparing to visit the remaining work fronts from the city of Trinidad to Mercedes so keep you posted shortly.

PG 70-28 asphalt NEW

Bitafal Special Asfaltos incorporates a new high-quality modified bitumen called PG 70-28.

The new surface has excellent results in laboratory, achieving resistance to permanent deformation and the like fatigue one asphalt AM3. If you are perform traditional tests it can be classified as an asphalt AM2 (almost AM3) of the IRAM 6596 standard but is a performance grade asphalt PG 70-28 E (for extremely heavy traffic).

And there are several works that are using this new alternative modified asphalt on the one hand is being used in the retreading on concrete Route 8 by Tracoviax and CVC and another is beginning to be used in the reconstruction of Route 14 you have to perform the PPP Circuit Vial 3 by the Espina-Copasa consortium.

At 12th Congress of the Road Uruguaya the benefits of this new modified asphalt and comparative studies with other asphalt cements were presented at the square.

On Route 8, it is conducting a retreading over the existing concrete section of Mataojo Solis - Minas. First a base layer of 5 cm and then a 4cm surface, both prepared with the asphalt PG 70-28 (AM2).

The mixing temperature is in the range of 160 ° C, maintaining the characteristics of a conventional asphalt work and high performance work to achieve good workability in the vicinity of 150 ° C.

Both companies are making a very good job in both manufacturing and laying and compaction of asphalt mixture which is reflected in surface quality, both macrotexture and IRI. We emphasize safety equipment used as mobile radars and donkey backs of much needed in a high traffic route. Moreover, for the roughness of the section are being used skates 6 m with sensors coupled to the terminating and results feel gait.

We thank the companies and the MTOP the offered confidence.

Category Archives: PG 70-28 Archives - Bitafal

Grupo San José trusts Bitafal to supply asphalt products

Works are currently suspended until after Tourism Week.

Road Circuit 3 advances according to the schedule foreseen in the rehabilitation of Route 14.

Making good progress rebuilding Route 14 through the PPP mechanism by the Consortium Espina-Copasa

Bitafal Special Asfaltos incorporates a new high-quality modified bitumen called PG 70-28.

Category Archives:
PG 70-28 Archives - Bitafal