Optimization of Mineral Composition of High Belite-sulphoaluminate Clinker
The belite-calcium sulphoaluminate cement (BCSA) clinker with belite(C2S) of 35%–65%, calcium sulphoaluminate (C4A3S(—)) of 20%–50%, and ferrite (C4AF) of 5%–15% was prepared with four major raw materials like limestone,
bauxite, clay and gypsum. Two aspects on the preparation of BCSA clinker are (1) burnability of raw meal and (2) optimization of clinker phases and gypsum content in cement. The results show that the cement with clinker burned during 1 280–1 320 containing C4A3S(—)
of 32%–42%, C4AF of 5%–9%, C2S of 46%–56% and gypsum of 12.5% can give the average mechanical strength of 55 MPa at 28 days. Compared to OPC, the BCSA cement consumes less energy and emits less emission.
Keywords: belite-calcium sulhoaluminate; compressive strength; mineral; optimization
Document Type: Research Article
Affiliations: China Building Materials Academy, Beijing 100024, China
Publication date: 01 November 2012
- Journal of the Chinese Ceramic Society (JCCS), published in Chinese and in English, is a comprehensive monthly periodical focused on the fields of inorganic and non-metallic materials. The main purpose of the JCCS is to report the latest creative achievements in research, production and design for ceramics, glass, cementing materials, refractory, artificial crystals and other non-metallic materials. JCCS is regarded as an important journal in inorganic and non-metallic materials sciences in China and has been awarded by China Association for Science and Technology. The full-text of papers in JCCS is also published by CNKI (China National Knowledge Infrastructure). JCCS is indexed in EI Compendex, CA( Chemical Abstracts) ,SA and Ж and more than 20 databases.
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