While gold mining usually leaves contamination and waste behind, in Suriname this residue is being tested in cement bricks for construction.

Written by Flavia Marinho

Published on 20/05/2026 at 20:52

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Study on cement bricks with gold mining tailings evaluates whether residues from artisanal mining can be used in civil construction, but safety depends on chemical analysis, mechanical resistance, and environmental control before any application.

Gold mining tailings in Suriname are being tested in cement bricks for civil construction. The proposal draws attention because it attempts to transform a leftover from artisanal mining into a construction material, without ignoring the risk of contamination.

The information was disclosed by ScienceDirect, Elsevier’s scientific article platform. The study deals with cement bricks produced with tailings from artisanal gold mining in the Pamaka region, Suriname.

The idea is appealing because it brings together gold mining, civil construction, and circular economy. However, the main point is not just to reuse the residue. The challenge is knowing when this material can be used safely and when it should be kept out of construction projects.

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Why gold mining tailings are so concerning

Gold mining can leave behind large volumes of material without immediate use. This tailing becomes a problem when it remains accumulated in the environment without control, as it can carry contaminants and affect soil, water, and nearby communities.

Excavator operates in a mining area in Suriname surrounded by tailings and mud

Therefore, the topic cannot be treated as a simple solution. Mining tailings are not automatically safe. Before becoming a brick, it needs to undergo tests that show its composition and risks.

In the case studied in Suriname, the residue comes from artisanal gold mining. This type of activity usually generates environmental and social impact, which makes reuse more delicate and requires technical analysis.

How mining residue can be incorporated into cement bricks

The proposed study involves using the tailings as part of the material used in the manufacture of cement bricks. Thus, a leftover from mining ceases to be just an environmental liability and starts to be evaluated as a possible component of civil construction.

This path is part of the logic of the circular economy, which seeks to give a new destination to discarded materials. Even so, reuse only makes sense when the final product presents adequate safety and performance.

Infographic summarizes the process of reusing artisanal gold mining waste in the production of cement bricks tested in Suriname. — (Image: Infographic of the process)

ScienceDirect, Elsevier’s scientific article platform, detailed the study on artisanal gold mining waste in Pamaka. The case shows that waste engineering can help discuss solutions for problematic materials, but without dispensing with environmental control.

What tests need to prove if the brick is safe?

A brick made with gold waste needs to be analyzed in several stages. The first is the chemical characterization, which shows which substances are present in the material and if there is a risk of contamination.

Then come the mechanical resistance tests. They verify if the brick withstands the intended use and can be applied safely under the evaluated conditions.

Researchers handle solid waste in the laboratory during tests that evaluate the reuse of mining waste.

It is also necessary to observe the environmental performance. This stage is important because a material may seem useful in construction, but still release contaminants or exhibit inappropriate behavior over time.

Why not all waste can become construction material

The construction industry can reuse various types of waste, but this does not mean that any industrial or mineral leftover can be used in a project. Each material has its own composition and can react differently.

In the case of gold mining waste, the care needs to be even greater. The presence of contaminants can turn a reuse attempt into a new environmental problem.

Therefore, bricks with mining waste should not be seen as a ready-made solution. They need to be treated as a material under study, dependent on tests, standards, and control before any widespread use.

Suriname shows something little explored in Brazil

In Brazil, mining is often associated with environmental conflict, territorial disputes, and social impact. This is important, but there is another point that is rarely discussed: what to do with the waste after it is generated.

The study in Suriname opens up space to talk about waste engineering in gold mining. Instead of only looking at the damage already caused, there is also the possibility of part of the material being put to controlled use.

The regional proximity to the Amazon makes the topic even more relevant for the Brazilian public. Mining, contamination, and civil construction are subjects close to the reality of many.

The solution only makes sense when control comes before reuse

Turning mining waste into bricks may seem like a positive idea. However, reuse cannot serve to romanticize mining or to hide serious environmental problems.

brick made from gold mining waste — Concrete cylinder produced with waste from artisanal gold mining is analyzed in the laboratory to verify the material’s resistance and composition.

The central point is that hazardous waste can only become useful material when tests prove safety. Without this, the risk only shifts location, moving from the mining area to construction sites.

The research in Pamaka shows an attempt to find a destination for artisanal gold mining waste. The value of the study lies precisely in treating reuse as a technical possibility, not as an automatic promise.

The case of Suriname puts civil construction before an important question: to what extent can mining waste help reduce environmental liabilities without creating new risks?

Would you trust a construction made with material from mining waste if tests proved safety? Leave your opinion and share this discussion.

While gold mining usually leaves contamination and waste behind, in Suriname this residue is being tested in cement bricks for construction.

Study on cement bricks with gold mining tailings evaluates whether residues from artisanal mining can be used in civil construction, but safety depends on chemical analysis, mechanical resistance, and environmental control before any application.

Why gold mining tailings are so concerning

How mining residue can be incorporated into cement bricks

What tests need to prove if the brick is safe?

Why not all waste can become construction material

Suriname shows something little explored in Brazil

The solution only makes sense when control comes before reuse

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While gold mining usually leaves contamination and waste behind, in Suriname this residue is being tested in cement bricks for construction.

Study on cement bricks with gold mining tailings evaluates whether residues from artisanal mining can be used in civil construction, but safety depends on chemical analysis, mechanical resistance, and environmental control before any application.

Why gold mining tailings are so concerning

How mining residue can be incorporated into cement bricks

What tests need to prove if the brick is safe?

Why not all waste can become construction material

Suriname shows something little explored in Brazil

The solution only makes sense when control comes before reuse

While an average building in London or New York takes three years to be completed, in China a 26-story tower went up in five days with about 100 workers, and the global modular construction market already moves US$ 95 billion per year.

Australia installs giant concrete structures on the seabed 800 meters from the shore to create an ocean intake for desalination that will draw in saltwater and produce 30 million liters of drinking water per day.

While a traditional school may take several days just to raise walls, in Malawi a 3D-printed school had its structure ready in 18 hours, welcomed children in June, and showed a new solution to the lack of classrooms.

Goodbye traditional washing machine: Panasonic surprises housewives with the NA-G5 featuring four drums, a 13 kg washer and dryer, a 12 kg dryer, independent mini washers, a heat pump, and a 4-in-1 system awarded at the German Design Award.

Material once seen as a poor man’s choice returns as a climate bet, with red clay replacing part of the gray concrete in modern buildings, hospitals, houses, and a cultural center that transforms tradition into a solution against urban heat.

American company deploys humanoid robots to work live for 8 hours and surprises by showing machines handling packages at an almost human pace while accelerating production on a global industrial scale

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