SYNTHESIS OF CALCIUM SILICATE HYDRATE (CSH) F-ROM VIETNAM RICE HUSH

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Tác giả

Phạm Trung Kien, Phan Viet Hoang, Huynh Dai Phu, Nguyen Van Tam, Ngo Vo Ke Thanh, Hirofumi Hinode, Nguyen Hoc Thang, Nguyễn Học Thắng⁽¹⁾

Nhan đề

SYNTHESIS OF CALCIUM SILICATE HYDRATE (CSH) F-ROM VIETNAM RICE HUSH

Nhan đề tiếng anh

Nguồn trích

Tạp chí Khoa học Công nghệ và Thực phẩm

Năm xuất bản

2017

Số

1

Trang

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Vietnam is an agricultural country, which produces lot of rice and its by product is rice husk ash (RHA). The RHA is considered as waste in agriculture, and treated by burn in the open air. This process causes air pollution, thus attracted Vietnamese researchers to find al-ternative method to reduce the impact of rice husk ash on environment. The research group in Department of Ceramic Materials aims to reuse rice husk ash as source of silica (SiO2). It needs to emphasize that the main content of rice husk ash is silica. This research reports new technology to mixing RHA and CaO with the Ca/Si molar ratio of 1.0, in order to synthesize calcium silicate hydrate (CSH) such as tobermorite (C5S6H5) and xonotlite (C6S6H) as environmental materials. The advantage of our study is to utilize the Vietnam RHA and to reduce the environmental impacts by using hydrothermal treatment technique. Key words Calcium silicate hydrate, rice hush ash, hydrothermal treatment, ceramic.

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