Effects of Waste Marble and Glass Powders on Concrete Properties and Performance

Concrete, consisting primarily of cement, water and aggregates, is the most used construction material all over the world and plays an important role in the growth of infrastructure and industrial sectors. Cement manufacturing industry is one of the carbon dioxide producing sources that is caused global warming. However, using the waste materials and by-products as cement replacement materials become an attractive alternative because it helps to reduce the cost of concrete and cement manufacturing, also has numerous indirect benefits such as saving energy, reducing landfill cost and protecting the environment from possible pollution effects. Nowadays, marble dust and waste glass powders are two of the most polluting waste materials for the world environment. For this reason, in this thesis; the marble dust (MD) was examined as a partial cement replacement material with seven proportions as 0%, 10%, 20%, 30%, 40%, 50%, 60% and the glass powder (GP) was used as an additive material, 8% by cement weight, in a 0.55 water-binder ratio (w/b) concrete. Finally; experimental results indicated that MD can be used as a cement replacement material up to 10% replacement and with the use of GP both physical and mechanical properties of concrete can be improved. Keywords: Concrete, Marble dust, Glass powder, Cement replacement materials, Mechanical properties, Workability, Durability, Compressive strength, Sulphate resistance.