return icon Vietnamnet.vn

10th grader makes bricks from waste and quicklime

Diem My, a 10th grader at Le The Hieu High School in Quang Tri province, has won first prize at the 10th Youth Creativity Competition.

{keywords}

 

The girl told reporters that she had longed to contribute to environmental protection but could not find a solution until she began recycling waste into paving bricks.

Many red soil areas exist in the locality where she lives. These become slippery when it rains and dusty when it’s sunny.

When she was in the ninth grade, she had a lesson about quicklime. Lime has a basic oxide, capable of absorbing and reacting with toxic gases such as CO2, SO2 and HF, so it can keep a product stable and prevent moisture. The mixture she uses with lime has high cohesion and solidity.

During her free time, she began walking around to pick up plastic bottles. At first, she cleaned and cut the bottles into small pieces. After that, she mixed the plastics with sand and stone at the ratio of 6:4 or 7:3, and put the mixture in a pan and boiled for about 15 minutes at a temperature of 110-130°C.

During the process, she used colorants and molds with different shapes to create custom models.

Finally, she poured the mixture into molds and let it cool.

According to My, plastic waste is easy to find and lime is very cheap, just VND500-1,000 per kilogram. Each 35 x 25 cm brick needs one kilogram of plastic waste.

My mostly creates 30x30 bricks with different thickness levels, depending on the purpose of use. Thick bricks can be used for road paving, while thinner can be used for walls.

She still remembers the first brick she created. It was ugly and became soft and broke into pieces after a short time of being left in the environment. However, she did not give up. She continued to work on solutions to make the products better.

She hopes that the idea of producing paving bricks from plastic waste and quicklime will be applied in reality to ease pollution.

Asked about her plan after high school, she said she wants to study chemistry at the HCM City University of Technology. She plans to recycle other things in the time to come to “make life more meaningful”. 

Huong Lai

Phu Tho student wins gold medal at international physics competition

Phu Tho student wins gold medal at international physics competition

Tran Duong Chinh, a 12th grader majoring in physics of the Hung Vuong High School for the Gifted, has become the first student from Phu Tho province to win a gold medal at the European Physics Olympiad (EuPhO).

MORE NEWS

VIETNAM BUSINESS NEWS MAY 18

Two additional enterprises allowed to export pangasius to EAEU

HCM City has ambitious greenery plans for 2022

HCM City plans to add at least 10 hectares of parks and two hectares of public green spaces, and plant or rehabilitate 6,000 trees this year to make the city greener and more beautiful.

Two additional enterprises allowed to export pangasius to EAEU

The Russian Federal Service for Veterinary and Phytosanitary Supervision (FSVPS) have recently added two more seafood enterprises to the list of Vietnamese firms permitted to export to the Eurasian Economic Union (EAEU), as of May 4.

Vietnam seeks climate finance from G7

The partnership with the world’s advanced economies will help Vietnam address financial problems to pursue the low-carbon strategy.

Hoa Phat fined for having no independent board members

Hoa Phat Group JSC (HPG), a leading Vietnamese steelmaker, has been fined VND125 million for having no independent members on its board of directors.

VIETNAM NEWS HEADLINES MAY 18

Miss Supranational Vietnam 2022 debuts in HCM City

31ST SEA GAMES: UPDATES MAY 18

SEA Games 31: Vietnamese archers secure two silver medals

HCM City set to pilot casino scheme at luxurious hotels

HCM City is planning to pilot the opening of casinos at hotels rated five stars and above in popular tourist destinations for Vietnamese citizens aged 18 and over.

Fresh opportunities for Vietnam-US cooperation in tourism development and trade

Prime Minister Pham Minh Chinh has voiced his hope that US partners to support Vietnam in policy consultation, capital, human resources, infrastructure systems, technology, and governance.

Prime Minister invites US investment in digital transformation

Meeting with US financial corporations, Vietnamese Prime Minister Pham Minh Chinh said Vietnam is dealing with problems to make the capital market develop in a safe, transparent, effective and sustainable way.

Vietnam's stock market has potential in long term

After the longest losing streak in the past ten years, the VN-Index fell off the 1,200-point mark - an important support level established in 2018.

HCMC seeks to remove obstacles facing 38 property projects

The HCMC government has asked the Department of Construction to coordinate with other departments and agencies to quickly remove bottlenecks facing 38 real estate projects in the city as proposed by the HCMC Real Estate Association (HoREA).

Vietnam removes anti-dumping duties on steel imports from China, S.Korea

The Ministry of Industry and Trade has decided to remove anti-dumping duties on coated steel imports from South Korea and China after five years of imposing the duty.

Local gold regulation considered 'outdated' amid skyrocketing prices

With the price of a tael of gold in Vietnam more than US$800 higher than in the rest of the world, local experts say the local regulation of gold prices is unsuitable.

Encouraging results with Mobile Money deployment in VN

Le Anh Dung, deputy director of the Payment Department under the State Bank of Vietnam, noted that the Mobile Money service has grown positively.
back_to_top