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Maybe you don’t know that coffee grounds can replace construction sand


A team of experts from Australia has researched and found that coffee grounds can replace construction sand. Not only does this help limit greenhouse gas emissions for the coffee industry, but it also represents a huge step forward for science and the circular economy. Let’s find out more details with 43 Factory through this article!


Coffee grounds can replace construction sand


According to the 2020 survey results, up to 93% of coffee shops in this country discharge used coffee grounds into the environment. This puts pressure on the environment because it produces large amounts of toxic gases such as methane and carbon dioxide that cause climate changes.

Therefore, Australian experts have found ways to reuse coffee grounds in construction projects instead of sending them to landfill. The team at the Royal Melbourne Institute of Technology (RMIT University) got creative and found that coffee grounds can replace construction sand when pyrolysis. After going through a process that involves heating organic waste in the absence of oxygen, the spent coffee grounds are converted into biochar through a low -energy, oxygen-free environment at temperature 350°C (662°F). The finished product is then added to the concrete mix. The results showed that coffee grounds, when used as a biochar additive, actually increased the hardness of concrete by more than 30%. Especially when increasing the amount of biochar from coffee grounds, the reactions of calcium aliminate and gypsum phases increase, making concrete more durable.

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Coffee grounds to replace sand contribute to environmental sustainability


Coffee grounds are one of the organic wastes that account for a significant proportion of the total amount of waste buried underground. Their decomposition process produces a number of greenhouse gases (GHG) such as carbon dioxide, nitrogen oxides, ammonia, etc. causing an increase in global warming. The fact that coffee grounds can replace sand helps to reduce the amount of organic waste released into the environment. Coffee grounds are converted into coal to prevent decomposition, thereby limiting the large amount of GHG released into the air, contributing to improving climate change. In addition, this also reduces the exploitation of sand from rivers and seas, causing landslides along rivers and natural sandbanks.

If biochar from coffee grounds were to be widely applied, it could better access the circular economy, remove organic waste from landfills and also better conserve natural resources.

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In addition, if you want to experience high-quality specialty coffee beans from sustainably grown sesame seeds to minimize your environmental impact, please visit XLIII Coffee – The brand developed from the forerunner of 43 Factory Coffee Roaster!

Soucre: dailycoffeenews

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