Grupo Bitafal Comunicación, Author at Bitafal

Course Assessment Roadways

Bitafal said this in the course of UNR graduate of Argentina organized by the AUC in Uruguay.

In the last month, from 26 to 29 June, the Evaluation Course Walkways was performed by professors Marta and Oscar Giovanon Pagola, Institute of Applied Mechanics and Structures (lower) At the University of Rosario.

The course starts demonstrates the commitment that exists in the national road on these issues and attended by representatives from Grinor, CIEMSA, Serviam, CVC and MTOP officials, OPP and IM, in days of intense participation.

Among the topics discussed it is highlighted:

The objective of auscultation of pavements.
Analysis of the different parameters of pavement evaluation: longitudinal deformation (IRI), transversal deformation (rutting, sinking), cracking, bumps and surface defects (exudation polishing aggregates).
Review of the most commonly used for evaluation of these parameters equipment. Exposure of the most modern methods.
combined deterioration indexes: Index state Serviciability Present Index (PSI), Pavement Condition Index (PCI).
Importance of tire adhesion road (Macrotexture and coefficient of friction).
structural monitoring of roads (Benkelman, Lacroix, FWD, LWD).

In conclusion, the importance of assessing roadway stands, both structurally and superficially, to determine the prioritization of improvement projects and efficient maintenance of our roads.

New equipment for slip resistance CITEVI

Release Pendulum TRRL (British Pendulum Friction) to determine the coefficient of slip resistance in path 102.

Following the course Walkways assessment of the AUC, Measuring the skid resistance on asphalt Route 102 was made recently built by company C.V.C. with the British Pendulum CITEVI.

Slip resistance assesses the non-slip characteristics of a pavement surface and is directly related to the micro-texture of the aggregates used. The test consists of measuring the energy loss experienced by a pendulum fitted at its end with a rubber shoe, once it touches the surface to be tested. This loss of energy is registered by a mark on the graduated plate that contains the equipment.

Citevi Archives - Page 2 of 3 - Grupo Bitafal

With respect to the study section, said coefficient was determined in the new and in the old asphalt layer. In both cases, the test gave a value between 60-65, with a high repeatability in the measurement. Sections of the Carrasco Airport and the Interbalnearia were also tested, exhibiting similar values. Magdalena Pastorini and Nicolás Vaz from the MTOP were present to evaluate and discuss the results obtained.

Teachers consulted the University of Rosario, Marta Pagola and Oscar Giovanon, confirmed that the value found is good. They also clarified that the value tends to decrease with the level of traffic, and if it remains, it may be due to a not very good Los Angeles wear value, to the extent that the particles suffer small detachments (recovering their microtexture) when At the same time they tend to be polished. Finally, Marta comments that as an example, the Olavarría granite in the Province of Buenos Aires, has an initial value before polishing of the order of 65, and after polishing of 40. That final value of 40 is reached in 5 , 10 or 15 years depending on traffic and dirt conditions on the road.

As a final observation we conclude that the pendulum is very sensitive to the texture: if the mixture was kneaded, but still with exposed aggregates can give similar values. Therefore, to fully assess the slip resistance, it is advisable to supplement it with the patch of sand.

We must pay attention to these factors as they influence the behavior of the tire with the pavement, especially in wet conditions. Laboratory sion It has the equipment available to evaluate this parameter.

Incorporating a new boiler for our plant

29 June 2018
in: Bitafal group,HEATEC,News,technology

BITAFAL group continues to incorporate technology to increase production capacity and improve the quality of service provided.

In this June came to our plant manufactured a new boiler Heatec US 6,000,000 BTU / h to complement the other 3 boilers which our plant, increasing by 50% the heat capacity thereof.

This latest technology equipment has a high efficiency burner and fully automated control systems. We hope to have the connected equipment and running in the coming months to improve delivery times and increase production capacity.

Asphalt with AM3 Arena on Route 1

29 June 2018
in: Arena Asphalt,Bitaflex AM3,News,route 1,SAMI

Tracoviax makes an innovative technique in Uruguay to avoid reflection of concrete joints in a new retreading on Route 1.

The objective sought is to improve the IRI in the route segment operated an asphalt layer providing high durability, safety and comfort for the user. For this work it is under repair potholes slabs and then apply three asphalt layers:

1) A layer of sand asphalt as stress relieving membrane (SAMI) modified asphalt made with BITAFLEX AM3.

2) A regularization layer on the gauge with a CAD-12 type modified asphalt mixture made with BITAFLEX AM3.

3) A surface layer with an open mixture F-10.

We invite you to know the details of the work done below.

REPORT: Reference work corresponds to an extraordinary work in M / 48 tender "Maintenance Route 1 -accesses to Montevideo- Progresiva 67k600 "

Author: Marcelo Borreli - Tracoviax

Comprises the following sections; Section 12: 21k039 to 8k500 and Section 1: 8k500 to 13k000 National Route 1.

Objective to be achieved by the DNV;

Improve international indicator roughness (IRI), currently direction A - 3.59 IRI means, direction A (+) means IRI 4.34 ().

Perform asphalt pavement support on the basis of a concrete pavement badly damaged. This will be done by performing an asphaltic 3-layer structure, the first, that attenuates or delays reflection joints and fissures in the concrete pavement (SAMI), the second layer adjustment of the gauge to improve IRI and third, a surface layer that provides security and user comfort.

Previous performances in the concrete pavement:

Perform repair slabs with evidence of vertical movements.
Potholes.
Is taken as a premise that the reconstruction of the slabs made of concrete with similar characteristics to the adjacent slabs.

Characteristics of the asphalt structure to build:

asphalt layer cracking delay reflected: Sand layer Asphalt modified with SBS polymer (AM3) from 20 to 30 mm thick serving as SAMI (Stress Absorbing Membrane Interface), acts as attenuator Lift cracks and joints, especially road-banquina.

regulatory cover gálibo: Dense asphalt mixture, CAD 12, with asphalt cement modified with SBS polymer (AM3) with aggregate nominal maximum size of 12 mm, and can vary between 30 to 50 mm, acts as regulator of the gauge.

Bearing layer: Surface layer that provides security and user comfort, gap-graded asphalt mixture (granulometric use F-10 and Argentina Spanish legislation). Thickness of 30 mm.

For both CAD D-12 and F10 mixture are valid prescriptions specifications DNV 2017 version of Argentina.

Capeseal technology tendered by MTOP on routes 12 and 108.

Capeseal technology takes hold in Uruguay with the first project awarded in this mode by the MTOP.

The company Emilio Alvarez Diaz S.A. it's found rehabbing a stretch of 32 km of Routes 108 and 12 in the Department of Canelones. The work consists of a charge in some areas and then performing a site recycling in 20 cm depth with 3% Portland cement and subsequent Capeseal treatment involving the execution of a simple treatment and bituminous cold microsurfacing above.

In this case the application of simple treatment is performed with emulsion IRRIGATION BITAFAL 65 at between 1.2 and 1.4 L / m2 and a gravel 14-20 mm applied between 13 and 15 L / m2. Once cured, the treatment is swept and the company R & K Engineers applies a cold emulsion microsurfacing BITAFLEX MICRO 62 P25 at a rate of about 14 kg / m2. The aesthetic completion of the work resembles an asphalt binder and provides an excellent Macrotexture giving greater security to the pavement.

There are several sections already implemented this technology as Route 55 or Route 69 successfully suggesting that the development of the same in the coming years will grow. So soon in the coming months the company Served S.A. You will be running a section of Route 60 Route 12 and in the Minas with Capeseal.

We believe that it is essential to make a good stable base for the Capeseal will play as a surface treatment lasting many years both in function and waterproofing in adherence with the tire without losing the aesthetic quality.

The use of modified emulsions for both simple treatment as for microsurfacing use should be binding as the adhesion achieved with much higher aggregate in respect to unmodified emusiones. In turn the selection of aggregates for both treatments should be carefully performed for an appropriate duration.

We hope to inform them about future works Capeseal in the coming months and leave you with some pictures of the work done.

Whitetopping in Route 3 Consortium INCOCI - CUJO

31 May 2018
in: News,route 3,Whitetopping

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

Bitafal group participated in the "Technology Days" Wirtgen Group.

In last April, Bitafal group He was present once again in Road Technology Days del Grupo Wirtgen in Germany accompanied by a large Uruguayan delegation.

During the nine-day trip, they visited industrial plants in various parts of the country of diverse types, from manufacturers to crushers spades, then witness this great biennial event of RoadTechDays.

There is no doubt that the Wirtgen Group after its acquisition by John Deere, will be the most significant company for the category Paving the world. The event is organized living testimony to this, showing that the German perfectly together with American affluence produces an admirable formula.

We prior to this stunning event Wirtgen, with strong Uruguayan presence of colleagues Molisur, Serviam, Hernandez and Gonzalez, Traxpalco and CVC, met plants Wirtgen, Kleemann (shredders) and Betek (spades for recyclers and milling machines) for 3 days.

Then we transladamos south to the small town of Ludwigshafen, where modern production plant of Vögele, which would be held the RTD is.

During the two days of the event, all kinds of compactors, recyclers, milling machines and finishers were displayed. Then they had techniques of each of the aforementioned companies and live demonstrations of how each of these talks.

After the event an artistic representation of machines with dancers and acrobats was done in a real show of power, lights and fireworks. In the video shown below have a more detailed description of the event.

Thank again the people of Tradinter Y Grupo Wirtgen by the organization, dedication and treatment, which make this a repeatable and recommendable experience.

Images courtesy of Wirtgen Group

CITEVI gives a great step incorporates a Rheometer (DSR)

We are pleased to inform our readers that we are adding to our Research Center (CITEVI) Court Dynamic Rheometer (DSR for its acronym in English).

In a natural evolution of a company committed to the development of national road company, it's time to incorporate a computer that involves a before and after in the knowledge of the binders we handle.

This sophisticated equipment allows to know the performance of asphalts much of its viscoelastic range. Mainly we are concerned in these latitudes, that is at medium and high temperatures.

The team selected after several months of visits to research centers in the region and the US, is a Anton Paar SmartPave 102 with all accessories to perform the usual tests standardized by AASHTO and other agencies both America and Europe.

It is expected to be operational by August so we'll have more news on this in future editions of this Newsletter.

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.

International Day for the Preservation of the Road

04 April 2018
in: ASEFMA,Roads,Conservation,Bitafal group,IRMD2018,ITAFC,Environment,News

The next 5th of April it will celebrate the first International Day of Road Maintenance (International Road Maintenance Day, IRMD) the IRMD 2018

It proposed an excellent initiative from Asefma (Spanish Association of Manufacturers of Asphalt Mixture) and adds up consciences over the globe, such as ZAS (Slovenia) Routes de France (former USIRF France), ERF (European Road Federation) and Eurobitume, Mexico, Ecuador, Chile and BITAFAL from Uruguay, among others.

The reason for the celebration of this day is to show that the world as we know it today is only possible by roads and must properly preserve them. Institutionalizing the idea is to be held every first Thursday of April.

In the 2018 edition of IRMD, under the slogan "It protects the roads conserving the environment"It aims to draw attention to the influence of the condition of roads in emissions from vehicles on them.

He program of the day next Thursday April 5 in Madrid-Spain, will be from 9 to 12 (local time) and will feature two panel discussions:

1- The opinions of road users

2- The position makers

To access the free online transmission can be registered through the platform ITAFEC on the following link: https://www.itafec.com/event/detail/id/277

LINKS TO LEARN MORE:

Mas info: https://www.ptcarretera.es/wp-content/uploads/2018/03/IRMD-2018-Spain.pdf

Blog Juan José Potti (President of ASEFMA) https://blogdejjpotti.wordpress.com/2018/03/07/irmd2018-un-dia-internacional-sobre-la-conservacion-de-carreteras/

Manifesto IRMD_ https://www.asefma.es/wp-content/uploads/2018/04/manifiesto_IRMD2018.pdf

Official page # IRMD2018 https://roadmaintenanceday.org/es/inicio/