Influence of Treatment Tarot Kaolin by Thermal Method on Hard and Fresh Properties of Cement Mortar
Mohamed A Aboubakar1, Eshmaiel Ganjian2, Homayoon Pouya3, A M Akash4, H M Abdussalam5
1Mohamed A Aboubakar, Civil Architecture and Building Department, Coventry University (U.K).
2Eshmaiel Ganjian, Department of Civil, Architecture and Building, Faculty of Engineering & Computing, Coventry University (U.K).
3Homayoon Pouya, Department of Civil, Architecture and Building, Faculty of Engineering & Computing, Coventry University (U.K).
4A M Akash, Professor at Civil Engineering Department Sebha University Libya.
5H M Abdussalam, Department of Civil Engineering, Sebha University, Libya.
Manuscript received on March 02, 2013. | Revised Manuscript received on April 17, 2013. | Manuscript published on April 30, 2013. | PP: 631-634 | Volume-2, Issue-4, April 2013. | Retrieval Number: D1538042413/2013©BEIESP

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Abstract: In the last year at Libya the cost of the cement going up and lack has impacted unenthusiastically on the delivery of reasonably priced accommodation and infrastructural growth, for solve this problem we looking for new material for replacement with cement. This paper investigated the use of natural clay (kaolin) from Tarout town in south Libya, after treatment by thermal method, as partial replacement of Portland cement in the production of concrete. By The Scanning Electron Microscope (SEM) imaging and particle size distributions (PSD) to understand the mechanism of pozzolanic improvement of the Libya clay after treatment by thermal method (calcined at 800 OC for 2 hour).The Mortar mixes cubes measuring 50mm x 50mm x 50mm were made by using treated Tarout natural clay to replace 0%, 10%, 15%, and 20% of Portland cement by mass. The workability of the fresh cement mortar mixes were evaluated using the slump test ,while compressive strengths of cement mortar cubes were evaluated at 3, 7 and 28 days. The maximum compressive strength at all ages of testing was obtained at 10% replacement, corresponding to an increase of 11% compared to 28-day compressive strengths. The result show Workability decreased with an increase in replacement percentage. Pozzolan can be used to partially replace ordinary Portland cement in the production of concrete without compromising strength.
Keywords: Thermal treatment, Pozzolan, mortar, Compressive strength, Slump.