31/03/2020 - Bitafal

OVERHAUL HISTORIC ROUTE 30

The route is finishing being reconstructed in its section between Artigas and Bella Unión.

With the completion of this section, more than 250 km of intervened route from Route 5 to Route 3 in Bella Unión are completed. The recent works leave excellent connectivity for the city of Artigas, both due to the rehabilitation of the pavements and the 5 new bridges that were built in the section between Artigas and Tomás Gomensoro. The Traxpalco company is doing a great job in the widening and surcharge of the route as well as in the double interlocked treatment (DTT) with emulsion IRRIGATION BITAFLEX 65 P40.

Traxpalco is carrying out a granulometric stabilization by means of a 20 cm thick basalt surcharge and taking the width of the route to 11 m with 7.2 m of carriageway and 1.5 m of shoulder. The stabilized material is sealed with fine material and waterproofed with diluted MC1 awaiting double bituminous treatment.

The treatment is performed with emulsion IRRIGATION BITAFLEX 65 P40 and 12-19 mm gravel of very good quality in irrigation A and with 6-12 mm in irrigation B. The two irrigations are carried out in the same day ensuring the interlocking of the system applying the right dose and using a tandem roller to achieve the searched matrix.

The company has carried out great logistics to obtain granular material and stone aggregates, they have three mobile crushers and one fixed to achieve the necessary daily volumes of material.

With sufficient equipment and materials, together with adequate logistics on site, they are managing to execute close to 20,000 m2 of double finished treatment per day. Grupo BITAFAL is committed to the work ensuring the supply of two daily trips of emulsion to almost 700 km from our plant. The high daily yields with this system and the quality of the finished treatment demonstrate the advantages of this type of execution.

At the end of last year, 5 bridges were inaugurated in the section under reconstruction, with an estimated investment of USD 22 million. In this way the connectivity between Bella Unión and Artigas is assured.

The works are completed with a section of Branch Route 3 between Tomás Gomensoro and Bella Unión by the company DÍaz Alvarez. In that case there is also a surcharge of crushed material and then a double bituminous treatment carried out with emulsion IRRIGATION BITAFLEX 65 P25. In the area Diaz Alvarez has also carried out a resurfacing with BITAFLEX AM3 on Route 3 in the accesses to Bella Unión.

In this way, the Department of Artigas has received the largest injection of works in history, leaving a good quality infrastructure for the development of the area with the realization of investments that boost production activity.

* We thank Engineer Emilio Aitcin of the Traxpalco company for the collaboration provided for this note

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

Daily Archives31/03/2020 - Bitafal

The route is finishing being reconstructed in its section between Artigas and Bella Unión.

Works are currently suspended until after Tourism Week.