How did Australian scientists recycle coffee grounds into building materials?

Every year the coffee industry releases a large amount of waste from the coffee industry such as coffee grounds, which negatively affects the environment. Therefore, finding solutions to recycle and process them has become more urgent than ever. Recently, research in Australia has researched a method to recycle coffee grounds into construction materials, strengthening concrete. Let’s explore with XLIII Coffee!

Recyclecoffee grounds hardens concrete by more than 30%

Australian engineers have researched and created a method to make concrete stronger from used coffee grounds. The study carried out pyrolysis to decompose organic content in coffee grounds at temperatures ranging from 350 C - to 500 C. The process obtained a porous, carbon-rich biochar and continued mixing with other ingredients in cement samples. After testing the mixed samples for strength, compression,..., the results show that recycled biochar from coffee grounds (SCG) has excellent bonding performance with the cement base up to 30%. The addition of SCG to the mixture can inhibit organic compounds that interfere with the hydration reaction of cement particles, thereby increasing the compressive strength of the concrete block.

In particular, the testing process also found that coffee grounds at a temperature of 350 degrees Celsius have the best effect in improving the cohesion of the mixture. It enhances the overall compressive strength to a maximum sand displacement of 15%, resulting in a 29.3% increase in compressive strength compared to the control sample. Moreover, based on the test results, it is possible to carry out long-term mechanical and endurance tests on 350 CBC for its possible application in the construction industry. However, it is necessary to investigate the effect of other pyrolysis temperatures on the performance of SCG biochar in concrete.

tái chế bã cà phê thành vật liệu xây dựng

Recycle coffee grounds protects natural sand

Sand is one of the natural resources with finite properties. The continuous exploitation of natural sand to meet the rapidly increasing demand of the construction industry is causing the depletion of natural sand and a serious threat to the sustainability of the environment. Therefore, research into recycling coffee grounds as well as raw materials to replace sand helps to ensure long-term sustainability.

75,000 tons of coffee waste is released into the environment every year in Australia. Pyrolysis of coffee grounds at a temperature of 350 degrees Celsius can create about 22,500 tons of SCG biochar. This solution of turning organic waste into a valuable resource is a new industry in itself. It will create direct and indirect jobs for the entire supply chain in manufacturing, operations and end commercial purposes in specific applications. In addition, if this recycling application is universally applicable, it will encourage the environmentally friendly disposal of organic waste by pyrolysis. If disposed of in landfills, these wastes will produce CH4 (methane) - a substance that is 21 times more capable of global warming than CO2 and if burned will produce a very large amount of CO2 emissions. big. This not only reduces dependence on the continuous extraction of river sand for use in concrete but also helps to significantly limit the amount of organic waste released into the environment.

tái chế bã cà phê thành vật liệu xây dựng

The solution to recycle coffee grounds into building materials is said to be quite feasible and attracts the attention of many researchers. Let's explore with XLIII Coffee through the next articles!

In addition, if you want to enjoy sustainable, scientifically cultivated coffee beans, check out the specialty coffee collection from famous growing regions around the world or sign up for the Hunter Subscription experience!

Soucre: dailycoffeenews

Articles you may be interested in

- Specialty Coffee Hoi An – The interference in the original flow

- Finca Soledad Gesha for the desire to connect with nature

- Measuring the level of deforestation of coffee farms

Rate this journal
  • Protect the Origin

Transparent Specialty Coffee: Conveying Truth and Value

Perhaps the most magical aspect of enjoying a cup of specialty coffee lies not only in its refined flavors but also in the story behind each bean. What truly sets specialty coffee apart is transparency—a commitment to bringing the raw truth from its origin. Transparent specialty coffee reflects every process and value, creating a sustainable connection between farmers, producers, and consumers. This brings a deep and authentic spiritual value to each cup, a mirror of sincerity and dedication.

  • Describe the Origin

Coffee roasting companies – New standards and processes

Coffee roasting companies are not simply places where coffee beans are processed; it plays a crucial role in enhancing the quality and value of the product. Defined by their ability to select premium raw materials and precisely control the roasting process, these companies help unlock the unique flavor potential of each coffee type. As a key link in the coffee supply chain, roasting companies connect farmers with consumers, ensuring product quality and building consumer trust by meeting the growing demand for rich and distinctive coffee flavors.

  • Describe the Origin

Whole bean coffee prices – A picture of various influences

The market for whole bean coffee is constantly changing, influenced by factors such as species, harvest seasons, growing regions, and trade trends. These fluctuations affect not only farmers but also consumer decisions. What are the key factors driving coffee prices, and how can consumers find a coffee that balances quality and price? This article will analyze the factors that impact whole bean coffee prices and provide useful insights to help consumers make informed decisions.

  • Taste the Origin

Specialty Coffee in Vietnam – A turning point or a distant dream?

Vietnam is globally recognized for its coffee production, ranking second in the world for Robusta exports, just behind Brazil. However, sheer volume is not enough to meet the demands of the increasingly sophisticated global coffee market. Recognizing this, Vietnam has begun focusing on specialty coffee, making efforts to cultivate Arabica beans and enhance processing techniques. Despite some initial achievements, reaching the strict international standards of specialty coffee remains a significant challenge. The question is: Can Specialty Coffee in Vietnam make its mark on the global stage?

  • Find the Origin

Whole bean coffee: Discovering the perfect experiences

You may have heard the term “whole bean coffee” when exploring the world of coffee. But do you really understand what this type of coffee is and why it’s the preferred choice for true coffee lovers? For those who want to savor the pure, original flavor of every coffee bean, whole bean coffee is the key to unlocking a fascinating journey of taste. Let’s dive deeper into what makes whole bean coffee so special and find the perfect choice for you!

  • Taste the Origin

The Specialty Coffee experience awakens all senses

Have you ever taken a moment to savor every aspect of a cup of coffee? Each sip offers more than just the vibrant acidity reminiscent of various plants and fruits; it’s an invitation to challenge your senses. With every cup, we seem to refine our palate, patience, and imagination to keep up with the complex flavors dancing on our tongues. The Specialty Coffee experience offers a gateway to exploring the rich coffee culture from different parts of the world. Could these special beans provide a fresh perspective on a daily beverage we’ve grown so accustomed to?

  • Taste the Origin

The flavors of Specialty Coffee: A World of complexity

Have you ever wondered about the hidden flavors in a cup of coffee? The rich layers of aromas that surprise your senses as soon as the coffee touches your nose, stimulating your taste buds and evoking emotions? Specialty coffee is a journey of exploration just like that. With its diversity and complexity, the flavors of specialty coffee carry the essence of where it originates—from the coffee variety to the soil, from processing methods to roasting techniques. But how can we truly recognize and fully appreciate these flavors? Join XLIII Coffee as we dive deeper into the art of specialty coffee!

  • Describe the Origin

Is it necessary to find an authentic specialty coffee brand?

Unlike regular coffee, specialty coffee is rigorously evaluated for quality, flavor, and production methods. Every bean carries a unique story, from the farm where it was grown to the hands of the farmer. But with the surge of specialty coffee brands today, do we need to differentiate between brands to truly reach the essence of quality, or is a good cup of coffee enough to start the day?

  • Taste the Origin

Descriptive Assessment in Coffee: The flavor understanding

In the specialty coffee industry, understanding the sensory attributes of products is crucial for meeting market demands and enhancing coffee value. One of the most powerful tools to achieve this is the Descriptive Assessment in coffee. Let’s explore this method in detail, including its implementation process and its importance in the coffee industry.

  • Describe the Origin

Resting Coffee: What is ideal time from roasting to resting?

Resting coffee (the coffee resting period) is a crucial step in enhancing and reaching the peak flavor of these small but powerful beans. This relatively short period plays a decisive role in creating a rich and balanced cup of coffee. This raises the question: why is coffee resting necessary, and what happens during this time? Let’s explore the chemical changes inside the coffee beans to find the answers with XLIII Coffee.

  • Taste the Origin

What is coffee crust? Why is it important in cupping?

When participating in coffee cupping, you’ll encounter an essential term: coffee crust. This is not just the layer that forms on the surface after pouring hot water over ground coffee, but it also plays a crucial role in evaluating the flavor and quality of the coffee. To gain a deeper understanding of coffee crust and its significance, let’s dive into the details of this process.

  • Taste the Origin

Revealing the attributes of Specialty Coffee

A cup of Specialty Coffee is not just an ordinary beverage; it’s a journey through layers of flavors and refined sensations. Attributes of specialty coffee are like fresh stroke of color, creating a perfect picture—from the enticing aroma to the lasting aftertaste. Have you ever wondered what sets apart a regular coffee from a high-quality Specialty Coffee? Or why these attributes are so crucial in the coffee world? Let’s dive into each aspect with XLIII Coffee to better understand the art and science behind every sip of specialty coffee.