Ash replacement cement

When the rivers change color from green to dark yellow or red hulls from rice mills, Vu Thi Bach - student of environmental and biotechnology department of Ho Chi Minh City University of Technology Ho Chi Minh City - has embarked on a scientific research project 'Research on using agricultural waste as building materials'.

The husk ash can replace the required amount of cement. (Illustrated photos: Internet)

The subject of the Master of Science in Environmental and Biotechnology, Ho Chi Minh City University of Technology - Instructor, is participating in the Eureka 2010 Student Research Award in the field of environment. .

The idea is that the implementation is not simple. Long An rice husk and rice bran waste, coconut fiber ... in the look of many people. The beauty of this beauty is that it is normal for a student to work in a laboratory with a lot of chemicals and high temperatures.

The experiment was conducted in four stages. First, the sample was scavenged, dried, burned at 950 ^o C to remove the carbon content contained in the sample. Next, check the activity of the material is not standard. Then, mix the sample with cement, sand, water to make the mortar and then check that the sample is as durable as conventional construction materials.

After several tests, both she and her team were happy with the results: the husk ash replaced 10% of the total cement weight required to mold the mortar construction that is capable of plastering the walls and ceilings. Master Vu Hai Yen expects: ' Agricultural waste replacement 10% cement will cost the product will reduce 10%. I hope the plants will take care of this solution to help improve the lives of farmers, protect the environment .