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  Local
Effectiveness, honoring of sons of martyrs in Tunis neighborhood of Al-Thawra Directorate
[14 November 2024]
Cultural event in Al-Safia on anniversary of martyr
[14 November 2024]
Launching distribution of ten tons of improved wheat seeds to farmers in Marib
[14 November 2024]
Women's Authority in Hodeida City organizes event on anniversary of martyr
[14 November 2024]
Al-Thawra Hospital Authority in Hodeida organize event
[14 November 2024]
 
  International
Iraqi resistance destroys vital target in Um al-Rashrash "Eilat" occupied by drones
[14 November 2024]
Zionist enemy army admits death of six of its soldiers in battles of southern Lebanon
[14 November 2024]
Zionist enemy forces storm village of Deir Qaddis west of Ramallah
[14 November 2024]
Zionist warnings of level of danger reached by prisoners in Gaza
[14 November 2024]
Two Zionist soldiers injured in vehicular attack west of Ramallah
[14 November 2024]
 
  Reports
Widespread rejection of Smotrich’s comments on annexing West Bank : Report
[12 November 2024]
Zionist entity rents its media to solidify role of “victim”
[12 November 2024]
Trump's efforts to liquidate Palestinian cause are doomed to failure
[09 November 2024]
Arab & Islamic inaction encouraged Zionist enemy to continue its genocide in Gaza & Lebanon
[09 November 2024]
Hezbollah missiles & drones light up skies of all occupied cities
[09 November 2024]
 
  US-Saudi Aggression
US-British aggression targets capital Sana'a
[09 November 2024]
US-British aggression launches raid on Hodeida
[31 October 2024]
US-British aggression target Sana'a & Saada with 15 raids
[17 October 2024]
Military Media distributes scenes of down US MQ-9 aircraft in Dhamar
[16 September 2024]
Abdul Salam: Targeting civilians, educational facilities by US-British aggression is dangerous escalation
[10 September 2024]
  Press
Scientists make concrete from coffee grounds
Scientists make concrete from coffee grounds
Scientists make concrete from coffee grounds
[Mon, 11 Nov 2024 15:36:29 +0300]

Capitals - Saba:
Scientists at the Don University of Technical Sciences, with the participation of scientists from Turkey, Azerbaijan and Lebanon, have created a concrete made from biochar produced from coffee residues after processing.

According to the researchers, whose results were recently published, the addition of coffee residues to concrete allows for a reduction in the proportion of cement and improves its quality.

Coffee is one of the world's most widely consumed beverages, with one kilogram of instant coffee yielding about two kilograms of waste. From the seven million tonnes of coffee produced in the world every year, about 14 million tonnes of wet waste can be generated.

The scientists pointed out that organic materials, such as coffee grounds, should not be added directly to concrete because they release substances that weaken its durability. Instead, it must be heated to 400 degrees centigrade to remove oxygen and then grinded to create a porous, carbon-rich charcoal called biochar.

Scientists studying the properties of biochar found that adding it to concrete not only saves cement, but also improves the properties of the concrete. The best percentage of biochar in the composition of concrete is four per cent.


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UPDATED ON :Thu, 14 Nov 2024 13:19:38 +0300