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Why are scientists putting coffee into concrete?

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Scientists have devised a method to recycle used coffee grounds to improve the strength of  concrete.

Engineers at RMIT University have discovered a method to significantly enhance the strength of concrete by nearly 30% by incorporating processed coffee grounds into the construction material.

This approach involves transforming discarded coffee grounds into biochar, a lightweight residue reminiscent of charcoal. This biochar then replaces a portion of the sand that is typically an essential ingredient in concrete production.

The inspiration for this pioneering technique stemmed from a laudable motive – to combat coffee waste in workplaces, according to the research team behind the innovation.

In a noteworthy collaboration, the researchers are currently partnering with local councils to envisage upcoming infrastructure projects, including the construction of walkways and pavements, which will employ this revolutionary concrete.

One of the most promising environmental aspects of this method is its potential to diminish coffee waste ending up in landfills, in addition to easing the demand for natural sand, a vital resource extensively used in the construction industry.

The National Food Waste Strategy Feasibility Study reveals that around 3% of the country’s annual greenhouse emissions stem from food waste. With approximately 75,000 tonnes of coffee waste being generated annually, the newly developed technique could notably contribute to waste reduction efforts.

Termed as pyrolysis, the method involves subjecting coffee waste to temperatures of about 350°C. Remarkably, the engineering team has managed to make this technique more energy-efficient by conducting the process at lower temperatures than customary.

Through careful experimentation, the researchers ascertained that by substituting 15% of the sand conventionally employed in concrete production with coffee biochar, the resulting material exhibited a remarkable surge in strength – an impressive 29.3% increase.

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BREAKING: Shots ring out at Trump rally

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Donald Trump was whisked off the stage at a rally in Butler, Pennsylvania after loud noises rang through the crowd.

Trump was showing off a chart of border crossing numbers when bangs started ringing through the crowd. Trump could be seen reaching with his right hand toward his neck. There appeared to be blood on his face.

He quickly ducked behind the riser as agents from his protective detail rushed the stage and screams rang out from the crowd. The bangs continued as agents tended to him on stage.

His motorcade has left the venue.

In a statement, Trump says he is “fine” and says he is being checked at a medical facility.

Donald Trump was safe, the U.S. Secret Service and his campaign said on Saturday after multiple shots rang out at a rally by the Republican presidential candidate in Pennsylvania as video showed Trump grimacing and raising a hand to his right ear.
The former president had just started his speech when gunshots erupted and Trump and other rally attendees hit the deck. Secret Service agents swarmed around him and live video showed blood on the right side of Trump’s face and ear.
 
Trump repeatedly raised his fist in the air, with an American flag visible behind him, as security ushered him away.
“The Secret Service has implemented protective measures and the former president is safe,” a spokesperson for the agency said on X after what it called an incident.
“This is now an active Secret Service investigation and further information will be released when available.”

A map of the site, showing where the alleged gunman was situated compared to Donald Trump.

CNN reported that Trump was injured, but gave no other details. It was not clear how or what injuries he may have sustained.

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NASA astronauts phone home, confident Boeing’s Starliner will return to Earth safely

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Stranded NASA astronauts express confidence in Boeing’s Starliner spacecraft, assuring its capability to safely transport them back to Earth from the International Space Station.

The astronauts, over a video call to NASA, highlighted Starliner’s enhanced safety features and testing protocols as reassuring factors for their safe return.

“I have a real good feeling in my heart that this spacecraft will bring us home, no problem…”, said Sunita “Suni” Williams, one of the stranded NASA astronauts.

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Franchising vs. Independent: key differences to choosing the right SMB model

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With latest Australian Federal budget, many SMB’s are weighing their options when selecting a suitable business model.

Franchising provides brand recognition, operational support, and economies of scale but involves ongoing fees.

Independent businesses offer full control and profit retention but face higher costs and regulatory challenges.

For risk and reward, the franchising model reduces risk through established practices and support but involves ongoing fees and profit-sharing with the franchisor.

On the alternative, independent businesses retain full control of profits but face higher risks and responsibilities in managing the business.

Sonia Shwabsky, CEO at Kwik Kopy Australia, joins to share her key insights on SMB’s. #featured

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