Use of phosphate mine by-products as supplementary cementitious materials

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Output type: Conference proceeding

UM6P affiliated Publication?: Yes

Author list: Bahhou A., Taha Y., El Khessaimi Y., Idrissi H., Hakkou R., Amalik J., Benzaazoua M.

Editor list: Bahhou A.a,Taha Y.a,El Khessaimi Y.a,Idrissi H.c,Hakkou R.a, b,Amalik J.d,Benzaazoua M.a, e

Publisher: Elsevier

Publication year: 2020

Journal: Materials Today: Proceedings (2214-7853)

Volume number: 37

Start page: 3781

End page: 3788

Number of pages: 8

ISSN: 2214-7853


Languages: English (EN-GB)

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This work evaluates the potential use of clays by-products produced during phosphate mining as a novel supplementary cementitious material. The evaluation was conducted through (i) determination of physical, chemical, and mineralogical characteristics of samples (ii) the evaluation of clays thermal activation from 500 to 900 °C, and (iii) the assessment of the rheological and mechanical properties. Results showed that 800 °C was the optimal activation temperature. Substitution of clinker by 20 wt% of calcined clay allows to obtain a compressive strength higher than 22 MPa at 28 days. Consistency and initial setting time values were in agreement with the required cement standard. © 2020 Elsevier Ltd. All rights reserved.


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Last updated on 2021-26-10 at 23:16