INFLUENCE OF CHOPPED RUBBER TIRES ON SOME OF THE CONCRETE PROPERTIES

Abstract

The main aim of this research is to study the effect of adding %by weight of chopped rubber tire small pieces(10,20,30) % as areplacement materials from the weight of gravel to concrete as piece which have dimensions of (7*7*10)mm. The tests which were used in this study were. 1- Compressive strength .2- Absorption ,3- Density –it was Found that in Cooperating of chopped rubber tire in Concrete affected negatively an Compressive Strength relative to reference mix at 28 day were (15,22,31)% for Concrete with (10,20,30)% from chopped rubber tire by weight of Coarse aggregate respectively .Also there is increase in total absorption ratio relative to reference mix at 28 day were (33,63 ,72)% from Concrete with (10,20,30)% respectively .Also there is decrease in wet and dry density relative to reference mix at 28 day were (3,7,15)% and (3,8,16)% for concrete with (10,20,30)% from chopped rubber tires by weight of Coarse aggregate respectively ,and this leads to decrease in weight to dead loads and in the end on Foundation and its quality .it was found that the inclusion of chopped rubber tires in Concrete affects the properties of Concrete matrix which indicate large value in structural manufacture, so can production light weight rubber Concrete and insulator.