Impact of recycled gravel obtained from low or medium concrete grade on concrete properties

Impact of recycled gravel obtained from low or medium concrete grade on concrete properties

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This paper investigates cowboys ps5 controller the effect of recycled gravel obtained from low (Gl) or medium (Gm) concrete grade on fresh property of concrete (slump), mechanical properties (compressive-splitting tensile strength) and mass transport properties (ISAT-sorptivity) of concrete containing dolomite as a natural coarse aggregate.Concrete specimens were prepared with cement, water, sand and dolomite admixed with recycled gravel.The percentage of recycled gravel/dolomite was 0:100, 25:75, 50:50 and 75:25 at w/c = 0.

50, 0.55 and 0.60.

The effect of silica fume and bonding admixture at w/c = 0.55 on concrete properties were also considered.The results indicated that, increasing the percentage of recycled gravel/dolomite led to decreasing the slump.

All mechanical properties of concrete discussed were inversely affected by increasing percentage of recycled gravel/dolomite from low and medium concrete.Adding 10% SF or bonding admixture increased the mechanical properties of concrete.Mass transport properties of concrete (ISAT-sorptivity) were enhanced by decreasing the percentage of recycled gravel/dolomite.

The asus vivobook r565ea optimum percentage of recycled gravel/dolomite = 25%.Keywords: Recycled gravel, Concrete, Silica fume, Compressive strength, Mass transport.