Strength and behavior of self Compacting Concrete with Glass Waste as Partial Replacement for Coarse Aggregate under Elevated Temperatures

S Qadir, Hamed Jassim, Assistant Sarkawt, A Saeed, Shler Qadir, Hamed Jassim
2016 International Journal of Engineering Technology   unpublished
The large scale production of concrete and the acquisition of aggregates from dredging and quarrying have a dramatic impact on the environment. Consequently extensive research is ongoing into the use of aggregate replacements, using many waste materials and industrial byproducts. Also the huge quantities of glass waste have been increasing significantly without being recycled increasing the risk to public health. This growing problem of glass waste can be alleviated if new disposal options
more » ... sposal options other than landfill can be found. Glass waste is the least expensive of all the concrete constituents and is much less expensive than natural aggregates and sand, thus the idea is to replace as much of the natural aggregates and sand as possible to save money and to reduce the amount of disposable wastes, as well, but care has to be taken in order not to weaken the concrete by adding too much glass. Therefore the aim of this research is to use the glass waste in as a partial replacement of coarse aggregate to produce Self Compacting Concrete (SCC) and investigate the mechanical properties of this type of concrete when subjected to elevated temperature. The experimental program consists of casting and testing of 120 specimens (cubes 100 x100x100 mm, cylinders 100 mm x 200 mm, and prisms 100 mm x 100 mm x500mm) divided into four groups to study the effect of glass waste content (0%, 15%, 25% and 35%) as coarse aggregate replacement, on mechanical behavior of SCC such as compressive strength, indirect tensile, and flexural strength (modulus of rupture). Also the effects of elevated-temperature (room temperature, 200˚C, and 400˚C400˚C) on these strengths were studied. The experimental results show that, the optimum percentage of glass waste content in SCC as coarse aggregate replacement is 25%. On the other hand, the increase of temperature leads to decrease these strengths of SCC. In addition, the properties of fresh SCC study, and results show that the workability of SCC decrease slightly with increasing glass waste content in the mixes.