| Autor: |
Al-Anweh, Ahmed Mohammed, Abu-Zeid, Mohamed Mahmoud, El-Anbaawy, Mohammed Ibrahim, Al-Akhaly, Ibrahim Abdulhamid |
| Zdroj: |
Arabian Journal of Geosciences; 7/15/2022, Vol. 15 Issue 14, p1-18, 18p |
| Abstrakt: |
Combined geologic, lithologic, petrographic, mineral, and chemical investigations were conducted on the natural cement raw materials that are presently used by the six main cement plants in Yemen. The results of investigations were implemented to precisely characterize those materials. This permitted the determination of the relative suitability of the carbonates exploited from the various quarries to produce Portland cement either as natural cement rocks or by using correctives to modify their composition. This study involved also the determination of the types and composition of the correctives that can produce cements with highest quality. Moreover, an attempt has been made to assess the available natural substitutes for the presently used correctives and additives. This is most importance to deal with the progressive decrease in their reserves and to avoid getting the sand and clay raw materials by excavating the valuable agricultural and reclaimed lands. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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