While common slabs require expensive traditional concrete and constant maintenance, tests show that fibers from discarded carpets reduce life cycle costs and divert tons of textile waste from landfills.

Written by Flavia Marinho

Published on 01/06/2026 at 20:20

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Slabs on the ground can use discarded carpet fibers to reduce costs and improve structural performance

The carpet that left the office can return as slab reinforcement, offering reduced maintenance costs and lower environmental impact. The use of discarded textile fibers in ground floor concrete slabs controls cracks and extends the lifespan of the construction, preventing tons of waste from ending up in landfills.

The information was released by ScienceDirect, a scientific article platform, which detailed the key points of the study on the performance of concrete reinforced with discarded carpet fibers.

Why carpets are difficult to recycle

Carpets combine textile fibers, plastic base, and adhesives, making separation and reuse complex. These mixed materials cannot be recycled in traditional processes and often end up in urban landfills. The difficulty of recycling increases the environmental impact and raises the cost of waste management.

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How fibers enter the concrete

The discarded carpet fibers are mixed into the concrete before application on the ground. They act as distributed reinforcement, helping to control cracks and improve the slab’s durability. Unlike steel bars, the fibers are small and spread throughout the concrete, preventing small cracks from spreading.

The study published by ScienceDirect, a scientific article platform, showed that concrete with carpet fibers presented lower maintenance costs and reduced environmental impact compared to conventional concrete and concrete with steel fibers.

Where ground floor slabs use this type of reinforcement

This type of reinforcement is ideal for slabs on the ground, such as warehouse floors, circulation areas in industries, and light pavements. In these locations, the concrete needs to resist cracks and surface wear, but not extremely high loads. The textile fibers help maintain performance and reduce costs over time.

The application does not replace traditional methods in heavier structures but offers significant gains in light floors and ground slabs, combining sustainability and economy.

Why it is not suitable for every structure

In constructions that require high mechanical strengths, such as columns and long beams, concrete reinforced only with carpet fibers may not meet performance requirements. In these cases, the use of steel reinforcements remains essential to ensure safety and stability.

tipo de reforço é ideal para lajes sobre o solo, como pisos de galpões, áreas de circulação em indústrias e pavimentos leves — Type of reinforcement is ideal for **slabs on the ground**, such as warehouse floors, circulation areas in industries, and light pavements

Fiber reinforcement is recommended only for places where the main goal is crack control and maintenance cost reduction, without compromising structural safety.

The importance of reusing carpets in concrete

Reusing discarded carpets as reinforcement in slabs helps reduce the amount of textile waste in landfills and decrease operational costs of floors. This practice transforms a material considered difficult to recycle into a technical and sustainable input for civil construction.

The information was published by ScienceDirect, a platform of scientific articles, providing concrete data on cost reduction and lower environmental impact when carpet fibers are incorporated into concrete.

Share your opinion or leave a comment if you believe this alternative could be applied in constructions near your region.

While common slabs require expensive traditional concrete and constant maintenance, tests show that fibers from discarded carpets reduce life cycle costs and divert tons of textile waste from landfills.

Slabs on the ground can use discarded carpet fibers to reduce costs and improve structural performance

Why carpets are difficult to recycle

How fibers enter the concrete

Where ground floor slabs use this type of reinforcement

Why it is not suitable for every structure

The importance of reusing carpets in concrete

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While common slabs require expensive traditional concrete and constant maintenance, tests show that fibers from discarded carpets reduce life cycle costs and divert tons of textile waste from landfills.

Slabs on the ground can use discarded carpet fibers to reduce costs and improve structural performance

Why carpets are difficult to recycle

How fibers enter the concrete

Where ground floor slabs use this type of reinforcement

Why it is not suitable for every structure

The importance of reusing carpets in concrete

A giant printer called the “Ferrari” of concrete has landed in Latin America and can already build a 120-square-meter house in just 48 hours, making the traditional construction site look like something from the last century.

Great Atlantic Sargassum Belt has ceased to be a climatic phenomenon and has become a biological system that feeds on itself, with 8,000 kilometers in length, 37 million tons of algae, and scientists confirm that it is now permanent.

Brazil will harvest a record crop of up to 357 million tons of grains, but it does not have the capacity to store a large part of it. The storage deficit has reached the highest level in history and is equivalent to almost the entire production of Argentina.

Under nearly 2 kilometers of ice in Antarctica, scientists have discovered an ancient landscape sculpted by rivers up to 60 million years ago, the size of Wales, preserved as a time capsule that could help predict the advance of ice towards the ocean.

Scientists have discovered that the Earth recycles its own continents in the depths, dragging pieces of crust down during plate collisions and returning them later as magma, in a mechanism called relamination that has helped build the continents for billions of years.

Turkey is building a billion-dollar shortcut to channel billions of dollars by sea with a 45 km long canal, 275 meters wide and 20.75 meters deep, which promises to relieve the Bosphorus amid the crisis in the Strait of Hormuz.

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