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  Local
Dr. Bin Habtoor congratulates Yemen's membership in Board of World Mixed Martial Arts Association Directors
[23 November 2024]
Dr. Bin Habtoor condoles Brigadier General Abdul Samad Qasim Salam's death
[23 November 2024]
Master's degree with distinction for researcher Allan Fadayel from Yemeni Academy for Graduate Studies
[23 November 2024]
"Our martyrs are our greatness & symbol of our pride" tweet campaign kicks off
[23 November 2024]
Launching awareness campaign on safety & security measures in schools in capital Secretariat districts
[23 November 2024]
 
  International
Hezbollah attacks Shraga base north of occupied city of Acre for second time
[23 November 2024]
Hezbollah destroys Merkava tank in al-Jabin town school's vicinity , killing & wounding its crew
[23 November 2024]
Hezbollah attacks enemy forces at Amra Gate on outskirts of Khiam with assault vehicles
[23 November 2024]
North Korea: Washington escalates situation on Korean Peninsula
[23 November 2024]
Al-Qassam announces targeting "Zionist" force with anti-personnel missile in Rafah
[23 November 2024]
 
  Reports
Endowments enhance role in community, economic development : Report
[23 November 2024]
Hezbollah Inflicts Heavy Losses on Zionist Entity Over Two Months in "Awli al-Baas" Battle
[23 November 2024]
With new veto US proves it is key partner in Zionist genocidal war on Gaza
[21 November 2024]
Selling by weight.. An important step to regulate and develop poultry sector and serve citizen
[19 November 2024]
Settlement Negotiations: Enemy's Conditions Suspend Any Ceasefire Agreement in Gaza and Lebanon
[19 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 :Sat, 23 Nov 2024 23:50:58 +0300