Impact Resistance of Rubberized Concrete

Abstract

In the present paper, an experimental work was carried out to study the effect of ground waste tire rubber addition on the mechanical properties and impact resistance of normal strength concrete (NSC) with and without silica fume. Three different volume ratios of cnunb rubber (lo%, 20%, and 30%) were used as a partial replacement of sand. Two different sizes of cylinders were tested , under indirect tension test to study the size effect. Impact compression according to ACI Committee 544's repeated drop-weight impact test was carried out on discs of 150 mm diameter ,. ' ana 63 mm height. Test results showed that, the replacement of fine aggregate by 10% crumb ,. rubber caused a small decrease in concrete compressive strength. The presence of crumb rubber of :,. small size in concrete increased its resistance to crack initiation under impact load. Tbe rubber of small sue bas no varticle brid.eiua effect, hence, the mode of failure of rubberized concrete under static and impact ~ompression&a~ the s&e as that of plain concrete. The ACI impact test failed to differentiate between the impact resistance of rubberized concretes with different rubber contents.

Enhancement of Dynamic Damping in Eco-Friendly Railway Concrete Sleepers Using Waste-Tyre Crumb Rubber

“…The elastic properties and fatigue resistance will also improve by using crumb rubber in concrete [ 18 ]. The previous research conducted by Sallam et al [ 19 ] revealed that resistance of crack under impact loading will be improved in the presence of rubber particle. Hameed and Shashikala [ 18 ] indicated that the stiffness of concrete will be increased when containing crumb rubber under cyclic loads.…”

Effect of Impact Load on Concrete Containing Recycled Tire Rubber Aggregate With and Without Fire Exposure

“…Impact energy is 2851 N.m at 0% replacement, and it linearly increases till reaching 3351 N.m at 24% replacement. Different ratios of increase in impact energy of rubberized concrete were previously reported by some researchers in the literature [3,10,[21][22]. A possible reason might be due to the ability of the tire rubber particles to allow for large deformations.…”

Rubberized concrete properties and its structural engineering applications – An overview

“…They outlined that over this ratio, toughness decreased as a result of the strength decrease. Sallam et al [54] studied three rubberized concrete mixes with 10%, 20% and 30% replacement of sand volume with crumb rubber. They showed that existence of small size grains of rubber in the concrete mix increased the mix resistance against crack initiation under impact load.…”