Study the effect of local metakaolin on the behavior of reinforced concrete slab experimentally and numerically

الملخص EN

This paper presents an experimental and numerical investigation of the local metakaolin effect on the behavior of reinforced concrete slabs as a partial substitute for cement in concrete.

this was achieved by activating metakaolin at 700 degrees C.

We utilized various contain percentages as (0-5-10-15-20-25) %, of local metakaolin (Mk) at the water-cement ratio of 0.55.

we have replaced each amount of the cement with the same amount of metakaolin and produced 6 cubes (15 cm * 15 cm * 15 cm) from each one.

these cubes are then utilized for mechanical testing.

the samples were subjected to compressive strength, indirect tensile strength, and water sorptivity testing.

the mechanical test revealed that the strength of concrete grew from 5% to 15% replacement, peaked at 15%, then subsequently fell below this amount.

when the additive metakaolin (MK) is used in the optimal amount, the test results show that it tends to increase the strength of the concrete mix when compared to standard concrete.

the optimum result of the reinforced concrete slab had been applied using the finite element approach as we use these results experimentally (Ansys).