Portuguese 
English 
Spanish 
3 min of reading 
Arcelormittal In Partnership With USP Is Developing a Rebar for Civil Construction. The Product Promises Better Use of Steel and a Reduction in Concrete Use
Some days after the Brazilian Chamber of Construction announced a major import of steel from steel mills in other countries, aiming to balance prices in the national market, Arcelormittal announced that it is developing a new rebar for the civil construction sector alongside the University of São Paulo (USP).
Read Also
Expanding the Limits of Civil Construction
In conjunction with the Innovation and Product Development area for Civil Construction of the Long Steel segment of ArcelorMittal, the Building the Future Chair (a partnership between ArcelorMittal and USP) and the Center for Innovation and Sustainable Construction (CICS/USP), the team is working on launching a new rebar that will be responsible for expanding limits in civil construction, allowing projects to be created more safely.
The CA50/S-AR rebar is a solution with surprising resistance and a yield strength of at least 700 MPa. The new product, made in partnership with USP, will provide, in some operations, a better utilization rate of steel and a significant reduction in concrete use.
-
A new airport will be built with an investment of R$ 1.8 billion, will have a 3.5 km runway, a 35,000 m² terminal, and will occupy a gigantic area of 30,000 hectares to transform logistics, tourism, and air transport in Gabon.
-
A 90-day modular home goes viral in Brazil with the promise of a kit starting from R$ 20 thousand, less waste, and a catch that many people only discover after starting construction on their own land.
-
656 apartments and units starting from R$ 234 thousand will build a new vertical neighborhood in Blumenau, transform Velha Grande in three years, and expand the Minha Casa, Minha Vida program’s investment in the city’s expansion.
-
WEG created a battery storage system that is transforming an old mine in Finland into a renewable energy hub. The project is one of the first hybrids in the Nordic country to combine solar generation with storage and helps stabilize the national electricity grid.
Words from the CICS/USP Coordinator
The challenge of the project for civil construction was to create a rebar with high technical competence, focused on special operations and compliant with the ABNT NBER 7480 standard.
According to Professor Vanderley John, Coordinator of CICS/USP, large-scale works face difficulties with large material rates, limiting concrete flow.
According to the coordinator, this leads to a greater number of voids, meaning a loss of steel bonding to the concrete. With the increase in concrete strength, the steel in the rebar needs to keep up with these developments.
USP Campus Building Will Test the New Product
The new product from ArcelorMittal will be used in the experimental building CICS Living Lab, located on the USP campus. According to ArcelorMittal’s General Manager of Product and Service Development, Joaquim Burrel, the CICS is under construction on campus, and the behavior of the rebar will be monitored over the long term.
According to Burrel, through the partnership, not only this product but also other products with special properties are being analyzed and promise to innovate in the civil construction sector.
Professor Vanderley John emphasizes that in large-scale constructions where there is a high use of steel per cubic meter, this solution could promote the dematerialization of construction through the use of high-performance rebars.
-
1 person reacted to this.