While we were looking at gasoline, the Iran crisis has skyrocketed the price of asphalt. And the roads of half the world are already suffering from it

A few months ago we published in Xataka an article with the following title: Spanish roads have a problem in 2026: repairing a kilometer of asphalt is more expensive than ever. It was February 26, 2026. In it we analyzed the problem that Spain had encountered. Our roads, prepared for a hot and dry climate (especially in the southern half) had suffered very intense days of almost constant rain. It didn’t take long for the holes to appear and neither did the complaints in the media and social networks about the supposed poor condition of the roads. Trying to understand if this is really the case or not and why it is estimated that the State needs to invest some of 13,000 million euros to fix themwe looked to see if it had become more expensive the price of asphalt in recent years. Something that, indeed, was reflected in the aforementioned article. But this, as we said, was published on February 26. Two days later, on February 28, we woke up to the news that the Government of the United States and Israel had launched a joint bombing offensive against Iran. The rest, we already know. Crisis in oil supplya battle for open and close the Hormuz canal and fuel increases for passenger cars and airplanes. But there is something that has also risen. And that something is called asphalt. More expensive than ever (now yes) And in less than three months, which seem to have lasted a lifetime, the headline has become outdated. At the end of last month, Asefma (Spanish Association of Asphalt Mixture Manufacturers) already warned that the price of asphalt was skyrocketing. According to this association, in March alone the average price of asphalt had risen 8.2%. Nothing compared to April, when it did so by 49.3%. He overrun of the final product is due, above all, to the increase in the price of bitumen that acts as a binder for asphalt and is where the increase in the price of oil has the most impact. Asefma has come to consider that the increase in the price of asphalt was putting at risk the viability of the signed contracts or even whether they will be fulfilled or completed if the works have already begun. The truth is that, beyond the possible pressure measures of the employers’ association that defends the interests of its associates, the price of asphalt has skyrocketed inside and outside our country. To understand why asphalt has become more expensive you have to understand what makes it up. The pavement of our roads is made up of dirt and stones that are compacted. They serve as a base but also cushion the weight placed on them to delay the breaking of the asphalt. This asphalt is a bituminous mixture that uses bitumen of different intensity depending on where the road is going to be built. Those that resist heat better tend to be less flexible and those that drain better tend to be more flexible. Therefore, the latter They can melt when temperatures are very high. All components have been affected by the increase in the price of oil. To begin with, the earth and stones have to be transported by heavy vehicles with very high diesel consumption, precisely the fuel that has become most expensive. The same thing happens with the refinement of bitumen or asphalt (what we ultimately step on). If energy costs rise, the price of this product rises. But, in addition, the price of bitumen is closely linked to the price of oil. This product is made from the densest oil in the barrel, the least usable in energy terms and the most expensive to convert into fuel. This product is what is refined to obtain bitumen and, with bombs falling on Iran and the subsequent response on neighboring countries, the production and export of raw materials It has been very diminished, obviously. The American company Victory Paving figure in an increase of between 2 and 3% in the price of asphalt for every 10 dollars that a barrel of oil rises. They also argue that the shortage is greater because the rise in energy costs has an impact on a drop in the production of refineries and these usually prioritize the production of diesel and gasoline over asphalt refining because the fuels are more profitable. Richard Hudock, president of Derry Construction Co., pointed out to the American media who had never suffered a crisis so serious in the 42 years that they had been working, ensuring that the impact of the price of oil on the raw materials and fuel to be able to operate their vehicles put their job at risk this summer. In Argus They point out that the situation in Africa is no better. They point out that the bitumen that reaches countries like South Africa has become almost exclusively dependent on trade with Greece and Türkiye, once the Middle East tap has been closed. This has caused the price of each freighter to triple. If the price of asphalt has grown in the United States, South Africa and Spain, doubts have also grown about what to do in these cases. In the first of these countries It has been proposed to delay the patching of certain streets or highways. But this can cause the problem to worsen and, even if the price of oil falls again in the future, the damage will be deeper and the investment to be made would have to be larger. And the problem is that in the United States, the United Kingdom and Spain we face the same problem. The winters In all of these countries it has been very cold or very rainy, so the condition of the asphalt has been compromised. In BBC They report that the United Kingdom had already increased the budget to repair its roads but that the increase in the price of oil has put this item in check. The result, as … Read more

There is a reason why Germany allows driving at 300 km/h and it is not history or politics: it is the asphalt

If you like to step on the accelerator, you will have already seen firsthand that cornering at 100 km/h is better than at 130 km/h. I don’t need to remind you that the maximum speed allowed on state roads is 120 km/h. Although there are quite a few countries within the European Union with higher limits, Germany is the only state where there are sections without speed limit. 300 km/h without breaking a sweat. Obviously, this poses a danger to driving as cars such as a Porsche at 322 km/h. At these speeds, the risk of the car jumping or losing control is notable. But the “recipe” for manufacturing the German Autobahn has its particularities that allow it to offer enviable flatness and a road surface with high load capacity. And it can be found in the regulations and standards of the FGSV (Research Society for Highways and Transportation) and the BASt (German Federal Authority for Road Safety and Traffic). Blessed sandwich. While in Spain Flexible or semi-rigid pavement predominates with thicknesses of 40 to 60 centimeters. In Germany they use a standardized layer system called RStO 12 (Guidelines for the Standardization of Pavement Structures). That is, with a total thickness of between 70 and 90 centimeters with an antifreeze base composed of highly permeable gravel and sand so that water does not remain trapped (in case of freezing, it would generate large cracks as a result of expansion). About this, layers of gravel mixed with concrete or asphalt to provide sufficient rigidity to prevent collapse under the passage of heavy trucks. cwhen concrete and when asphalt. In the intermediate section the Germans use two materials, highlighting the concrete for those stretches of free speed and high truck traffic thanks to its rigidity and durability. In more detail: The 25 to 30 centimeter high-resistance concrete pavements longitudinally integrate plastic-coated steel bars. Thus, they allow some thermal expansion but do not allow them to move independently, causing steps. The transition between the concrete slabs is barely noticeable. Asphalt with stone matrix (S.M.A.), a combination with crushed stone and cellulose to offer extreme resistance to deformation and maximize the tire’s grip. The “superstructure” of German roads. Von Susan from Bielefeld, Deutschland – Straße, CC BY 2.0 Extreme plain for safety and by law. If you hit a speed bump at a certain speed, your car will go away. If you go 300 km/h in a sports car, the loss of aerodynamic load is such that it could be fatal. So Germany takes the plain very seriously by regulations: the maximum allowable deviation three millimeters in four meters. They achieve it with controlled pavers by global navigation and laser sensor systems. Auf wiedersehen, aquaplaning. Once the risk of steps, cracks and unevenness has been minimized, there remains another staunch enemy for speed: water on the asphalt. And they fight it in two ways. For starters, autobahns have a slope of at least 2.5% on the sides to evacuate the water as soon as possible. For concrete pavements, it is used waschbeton or washed concrete, a technique that brushes the surface to expose the aggregates, thus creating a rough, non-slip area that breaks up any water film that may form. In Xataka | Germany, Austria and Switzerland have plenty of roads. So they have started covering them with solar panels In Xataka | The Autobahn are the only roads in Europe without a speed limit. More and more Germans want to end them Cover | Wes Tindel and Nick Fewings

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