Scientists Engineer Eco-Friendly Concrete to Reduce Emissions

Scientists Engineer Eco-Friendly Concrete to Reduce Emissions

We are searching data for your request:

Forums and discussions:
Manuals and reference books:
Data from registers:
Wait the end of the search in all databases.
Upon completion, a link will appear to access the found materials.

According to Chatham House, each year, more than 4 billion tonnes of cement are produced, accounting for around 8% of global CO2 emissions. In fact, as useful as concrete is for our construction, it is actually really bad for our planet.


For a while now scientists have been looking for ways to improve concrete to make it more eco-friendly. Empa scientists have come up with one such method.

The new system seeks to make concrete elements leaner, yet durable and stable. They plan to do this through pre-stressing, a process that sees a concrete element withstand very high loads.

In a traditional pre-tensioning, the reinforcements or tendons are usually made of steel. The issue here is that steel is susceptible to corrosion requiring the concrete layer around it to have a certain thickness. This means the amount of cement used can not be reduced.

There is a method of using carbon fiber-reinforced polymers (CFRP) to replace steel reinforcement that has been around since the 1990s. CFRP does not corrode allowing for the creation of leaner concrete components.

“But if you want to pre-stress these CFRP reinforcements in order to be able to build even thinner structures with a higher load-bearing capacity, you reach your limits,” said Empa scientist Mateusz Wyrzykowski. This is because the anchoring of CFRP bars is much more complicated and expensive than that of steel... until now.

The Empa team has come up with a new method of pre-stressing that sees the CFRP bars automatically pre-stress themselves. It is a special formula that allows the concrete to expand as it hardens.

“Our technology opens up completely new possibilities in lightweight construction,” added Wyrzykowski. “Not only can we build more stable structures, we also use considerably less material.” Are you ready for leaner cement?

Watch the video: Surprising Solutions To The Climate Crisis (September 2022).


  1. Llacheu

    I apologise, but, in my opinion, you are not right. Let's discuss. Write to me in PM, we will talk.

  2. Kwabena

    I think you will allow the mistake. I can defend my position. Write to me in PM, we will discuss.

  3. Macon

    In my opinion it was already considered

  4. Tyce

    Deleted (topic mix)

  5. Shaktikinos

    I consider, that you are mistaken. Write to me in PM.

Write a message