IMPRESSIVE GROWTH IN PAVEMENT PROJECTS
|Operating Countries||# of Projects||Mln Square Meters**|
After the establishment of our first infrastructure project division in Mexico in 1992, pavement-related activities have expanded over time and seen explosive growth in the past two years.
Since 2010, CEMEX has built over 33 million square meters of pavements. This is the equivalent of a 5,000 km two-lane road.
Concrete’s superior durability ensures
minimum maintenance costs.
The superior durability of concrete over asphalt ensures low and predictable maintenance costs.
This is the main reason why there are more than 80,000 km of concrete highways in the US and almost 4,000 km of concrete autobahn in Germany.
The durability of concrete makes it the smarter choice.
Including the full life cycle of the project, concrete has significant lower total cost versus asphalt despite its slightly higher initial cost.
Concrete can be more than 15°C (27°F) colder than
asphalt on a warm day.
Cities are warmer than their surroundings, which in summer leads to discomfort, health risks, and higher air conditioning use. Light-colored surfaces such as concrete reduce the Urban Heat Island Effect.
According to the Massachusetts Institute of Technology (MIT), concrete pavements can reduce fuel consumption by up to 3%.
On the rigid surface of a concrete pavement the wheels do not sink as much as they do on flexible, i.e. asphalt, pavements. This effect, called deflection, is invisible to the naked eye, but has a noticeable impact on fuel efficiency.
Deflection-induced fuel consumption on asphalt is more than twice as high as that on concrete of the same thickness.
This urban highway of 5.3 km was completely reconstructed in conventional concrete in order to put an end to the constant maintenance and repair work that the previous asphalt surface required.
Disappointed with the quality of its asphalt-paved road network the city of Tijuana asked CEMEX to rehabilitate more than 160 km of 4-lane highways with whitetopping. In addition, CEMEX provided support for the financing of the project under a public-private partnership (PPP) scheme.
A 34.5 km stretch of the highway with a total surface of 528,000 m² was rehabilitated in full-depth reclamation, i.e. a cement treated base using the pre-existing asphalt layer as aggregates, resulting in almost 12% savings in cost and around 30% less construction time.
This stretch of autobahn built with conventional concrete used 9,000 metric tons of CEMEX cement that was not only optimized for pavements but also reduced the carbon footprint of the project by some 2,500 metric tons of CO2.
A 120,000 m² whitetopping project to rehabilitate a worn-out asphalt pavement; in addition ot the life-cycle cost saving of 54% compared to an asphalt rehabilitation, construction time was cut by 20%.
San Angelo, Texas, USA
The roller compacted concrete design for this 12,800 m² project convinced the city engineer: 41% less cost for rehabilitation and maintenance, first major rehabilitation after 25 years, and 10 fewer days of construction time.
The application of conventional concrete with exposed aggregates gives this 1,635 m² parking a distinctive and elegant look while ensuring superior durability.
Another example of decorative conventional concrete is this park featuring 9,800 m² of colored concrete, built by CEMEX as a turnkey project with a fixed and guaranteed price per m², effectively eliminating cost risks for the municipality.
Puebla, Mexico (BRT)
40 buses operate on this 18.5 km line built by CEMEX with conventional concrete. This kind of Bus Rapid Transit system offers a performance similar to that of a train line, but with more flexibility and at lower cost.
CEMEX supplied the concrete for the city’s TransMilenio bus network which is recognized by the United Nations for reducing CO2 emissions by almost 250,000 tons per year.
Mexico City, Mexico
Line 3 of the Metrobus, built with conventional concrete, is a key element of the city’s BRT system that improves access to public transport, shortens travel times and reduces CO2 emissions by 110,000 tons per year, the equivalent of taking more than 35,000 vehicles off the road.
Roller compacted concrete was the best solution for this bus lay-by. In addition to significant savings in both initial cost and maintenance it was the particularly short construction time of 2 days that convinced city officials to choose this solution.
The high racks in this warehouse lead to extreme loads on the pavement. CEMEX helped solve this challenge with the use of fiber-reinforced conventional concrete for the 10,000 m² floor space.
Washwood Heath, UK
The challenging combination of high loadings and poor soil in this train loading yard asked for 15,000 m² of roller compacted concrete on a cement-treated base – for little more than half the cost of an asphalt-based pavement.
The Savola Sugar Refinery had CEMEX build around 60,000 m² of in-plant roads with conventional concrete. In light of the heavy trucks the client did not even consider asphalt as an alternative.
Casting large surface areas requires special know-how and experience, like in the “CEDI Liverpool” Distribution Center that features 47,000 m² of conventional concrete.
Mexico City, Mexico
The use of a rapidly hardening concrete that was developed by CEMEX allowed the use of the apron just a few hours after the placement of the conventional concrete slabs in this recent rehabilitation work at Mexico’s largest airport.
Pie de la Cuesta, Mexico
This air base on the Pacific coast of 70,000 m² was particularly challenging due to the poor soil quality. CEMEX solved the problem by designing and building with conventional concrete over a cement-treated base.
Panama City, Panama
In order to prepare for higher travel volumes, Panama City’s international airport chose conventional concrete as the most durable solution for heavy aircraft and tropical conditions, and contracted CEMEX to pave 163,000 m² in a turnkey project.
Victor Peace Airbase, Egypt
This 50,000 m² job is not only notable due to the climatic conditions 30 km west of Cairo, but also because it satisfies the challenging standards of the US Army Corps of Engineers.
Soil cement technology is the effective solution for mud and erosion that enables this road to be used year-round, and at the same time was some 30% cheaper than an equivalent asphalt road.
High quality aggregates are scarce in some parts of the country. The durability of cement-based pavements like conventional concrete can mitigate this problem and at the same time saves money.
Short slabs reduced initial cost by 16% and life-cycle cost by 27% compared to asphalt; based on the success of this project CEMEX has been involved in a dozen of similar projects in this country.
This rural access road of around 3,200 m² was one of the first uses of roller compacted concrete in the country. Initial cost was reduced by 15% compared to an asphalt alternative, and maintenance is expected to be negligible.