High belite cement from alternative raw materials

Authors

  • H. Y. Ghorab Helwan University (Cairo, Egypt)
  • M. Rizk Helwan University (Cairo, Egypt)
  • B. Ibrahim Tourah Cement Company - Suez Cement Group, Cairo, Egypt (Cairo, Egypt)
  • M. M. Allam Tourah Cement Company - Suez Cement Group, Cairo, Egypt (Cairo, Egypt)

DOI:

https://doi.org/10.3989/mc.2014.01913

Keywords:

Clinker, α Belite, Stabilization, Alternative raw materials

Abstract


Three high belite laboratory clinkers were prepared from traditional and alternative raw materials. Reference clinker was obtained from 77% limestone, 11% sandy clays, 11% fatty clays and 1% iron scales. The fatty clays were replaced by red brick powder in the raw meal of the second clinker and were lowered to 2% with the replacement of 10% of the limestone by egg shells in the third clinker. The SEM examination revealed clear presence of crossed striae and twinning in the rounded belite grains of the reference clinker caused by the transformation of the α´-belite to the β polymorph. Striae were weaker in the second and third clinkers indicating a probable stabilization of the α ‘-belite polymorph. Compressive strength of the respective cements were attained first after 28 days and the early strength did not improve with increasing fineness. Higher compressive strength values were found for the cement prepared from second clinker.

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Published

2014-03-30

How to Cite

Ghorab, H. Y., Rizk, M., Ibrahim, B., & Allam, M. M. (2014). High belite cement from alternative raw materials. Materiales De Construcción, 64(314), e012. https://doi.org/10.3989/mc.2014.01913

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Section

Research Articles