Why Cross Ribbed TMT Bars Is An Ideal Construction Material In Central India

TMT steel bars have become the default choice for steel across the construction industry and this is due to the many benefits it brings to RCC structures across diverse geographies, terrains and climatic conditions.

As compared to ordinary sariyas, TMT bars are stronger, more ductile, offer enhanced earthquake resistance and corrosion resistance properties AND reduce cost all round.

All these benefits stem from its unique Thermex manufacturing process. The Thermex technology developed by HSE Germany is used for over 80% of the TMT bars manufactured in India. The quenching and self-tempering technology results in a TMT steel bar which has a ductile core of ferrite and pearlite, and a hard surface of martensite. This two-toned combination gives the bars/sariyas higher yield strength along with greater elongation and ductility.

But there is more to the process than the quality of the steel; TMT bar manufacturers add ribbed patterns on the bar for better bonding with concrete. For example, at 24K Sariya, we use a unique x-shaped rib design, which has proved to offer a tighter grip between two main construction materials, i.e. steel and concrete.

Here are some benefits a cross ribbed TMT bar brings to RCC construction, especially in Central India –

Better anchorage between concrete and steel

The most significant advantage of cross ribbed TMT bars is that they provide better bonding strength between steel rods and concrete. This gives the structure higher strength, especially in times of stress, such as during earthquakes or floods. Without these lugs and ribs, concrete could lose its grip leading to the collapse of the entire building.

For buildings in central India where several cities fall in the seismic zone III, cross-ribbed TMT bars provide an extra layer of safety.

Uniform load distribution

The cross-ribbed pattern on TMT bars also increases the strength of the structure by distributing the load evenly across the entire length of the TMT bar. No matter where you live in the country, giving your structure the foundation of the most robust steel is, without doubt, the safest way to build.

Cost savings

Reduction in construction cost is one of the first savings you will see with cross-ribbed TMT bars. With better grip, less concrete slips off during construction, thus reducing wastage.

In the long run too, high-quality TMT steel and enduring bonds between construction materials ensure that the structure lasts through its expected life cycle. Reduced maintenance costs and a complete return on building investment results in indirect cost savings for decades.

The pattern of TMT bars is not fixed; each manufacturer decides on the pattern, the placement, and the height of the lugs and the ribs. It is essential to know the advantages of a specific pattern before making a choice. For example, at 24K sariya, we use an automatic CNC machine fitted to our rolling mill to produce a cross ribbed pattern that is precise and uniform. Our stringent tests prove that our cross ribbed TMT bar pattern provides better bonding with concrete without compromising on the ductility of the TMT bar.

To find out more do get in touch, we will be happy to give you more technical details.