New Industrial Additive

New Industrial Additive

The challenge

Throughout the many R&D projects that have been developed in recent years, it has been shown that elastomeric material could increase the elastic recovery of bitumen, substantially improving the quality of asphalt, and especially increasing its durability.

However, there were no proven methods of work and technologies that would maximize the benefits of this material without the generation of disadvantages in existing plants or the modification of installations dedicated to the preparation of bituminous mixtures.

The solution

Development of a rubber powder from tires out-of-use industrial additive, based on an innovative manufacturing process, capable of producing asphalt by semi wet method with a rubber powder from tires out-of-use  content of about 30%, exceeding all current limits.

This new additive gives asphalts characteristics similar to those provides by synthetic polymers and even better properties, in some aspects.

Innovations / Improvements

•Valorization of out-of-use tires waste, reducing the amount destined for landfill.

•Increased knowledge of mechanical behavior of additives for bituminous mixtures.

•Improvement of the additive manufacturing process for the manufacture of bituminous firm by semi-wet method.

•Increase the options for firm additives available for sale on the market.


This project has been funded by the Center for Industrial Technological Development (CDTI)

We use our own and third party cookies for analytical purposes. Click on HERE for more information. You can accept all cookies by clicking the "Accept" button or set them up or refuse their use by clicking .

Cookie declaration

These cookies are necessary for the website to function and cannot be disabled in our systems. These cookies do not store any personally identifiable information.

Name Provider Purpose Expiration Type
LFR_Sesión_STATE_* Liferay Manage your session as a registered user Session HTTP
GUEST_LANGUAGE_ID Liferay Determines the language with which it accesses, to show the same in the next session 1 year HTTP
ANONYMOUS_USER_ID Liferay Manage your session as an unregistered user 1 year HTTP
COOKIE_SUPPORT Liferay Identifies that the use of cookies is necessary for the operation of the portal 1 year HTTP
JSesiónID Liferay Manages login and indicates you are using the site Session HTTP
SACYRGDPR Sacyr Used to manage the cookie policy Session HTTP

These cookies allow us to count visits and sources of circulation in order to measure and improve the performance of our site. They help us know which pages are the most or least popular, and see how many people visit the site. All information collected by these cookies is aggregated and therefore anonymous.

Name Provider Purpose Expiration Type
_gat Google It is used to throttle the request rate - limiting the collection of data on high traffic sites Session HTTP
_gid Google It is used to store and update a unique value for each page visited Session HTTP
_ga Google This is used for statistical and analytical purposes for increasing performance of our Services Session HTTP