الفهرس 
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Abstract
Concrete is regarded as the most important component in the field of building and construction, with its most important characteristics being its high compressive strength, durability, and availability. The most important component in the concrete industry is Portland cement, which serves as the foundation for its production. Cement (PC) production generates a significant amount of carbon dioxide emissions, as one ton of cement emits more than one ton of CO2, and this massive amount of CO2 increases temperatures and causes global warming. Cement also uses a lot of energy and raw materials like limestone in its manufacturing process. There are solutions proposed for making eco-friendly concrete to conserve natural resources and reduce energy consumption to reduce CO2 emissions in the cement industry. Geopolymer concrete (GPC) is a new special type of concrete that is an eco-friendly construction material produced by completely replacing the PC. It is also considered the third generation of binders, after the PC and lime. Many researchers believe that geopolymer concrete will be the future of concrete due to the lack of cement in its mixtures, as cement could be completely replaced with a pozzolanic material such as slag (GGBS) and activated by an alkaline solution. The use of GPC in the construction industry is still limited because it is difficult to control the heat curing on-site. The effect of waste glass (WG) on geopolymer mortar and concrete is investigated in this thesis. Waste glass is added in three different forms: as a binder (10%, 15%, 30%, 50%, and 100% of the total weight of the slag), as fine aggregates (5%, 7.5%, and 10% of the total weight of the sand), and as coarse aggregates (125%, 25%, and 50% of the total weight of the dolomites). Moving to pavement blocks, waste glass is added as a binder with a replacement ratio of slag by (10 and 15%), as a fine aggregate with a replacement ratio of sand by (5 and 10%), and as a coarse aggregate with a replacement ratio of dolomites by (12.5 and 25%). To investigate the properties of fresh, hardened concrete, durability, and unit weight, slump tests for waste glass concretes, flow tables for waste glass powder mortar mixtures, and setting times for mortar and concrete mixtures were used. The mechanical properties of all mixtures were investigated using compressive strength, splitting tensile strength, and flexure strength for mortar mixtures. Geopolymer concrete is made by bonding coarse aggregates, fine aggregates, alkaline solutions, and other unreacted materials together with Geopolymer gel, and the curing period ranges from 24 to 48 hours. The durability properties of samples were investigated by applying high temperatures of 200°C, 300°C, 400°C, 500°C, and 600°C to obtain the residual compressive strength and percentage of weight loss after exposing samples to the mentioned elevated temperatures. The experimental results were divided into three phases: phase I: mortar group, it was concluded that the highest value of initial and final setting time was equal to 253 min and 481 min at P-WG100 for mixtures V which is a full replacement for slag. For compressive strength, the mix (P-WG15) achieved the highest compressive strength, equal to 32.1, 50.3, and 61.2 MPa after 3, 7, and 28 days, respectively, and for ambient curing after 28 days, it got 52.0 MPa. Moving to phase II: For the slump test, for group one, the highest value of slump was equal to 248 mm at (F.A-WG10), while for group two, the highest value of slump was equal to 256 mm at (C.A-WG50). For the compressive strength test, for group one, the highest value was equal to 73.1 and 88.8 MPa after 7 and 28 days, respectively, at (F.A-WG10), while for group two, the highest value was equal to 62.1 and 75.1 MPa after 7 and 28 days, respectively, at (C.A-WG0). In the elevated temperature test, the highest value was 93.6 MPa for mix (F.A-WG10) with a residual compressive strength equal to 112% at 200 °C, while for group two, the highest value was 77.3 MPa for mix (C.A-WG12.5) with a residual compressive strength of 105% at 200 °C. Moving to phase III: geopolymer pavement blocks Dry density slightly increased when waste glass increased. The highest compressive strength at 28 days for mixes cured by heat curing is 88.0 N/mm2 for 15% of replacement waste glass as a binder, with the increase over the control mixture equal to 17.3%, moving to durability properties. The highest weight and thickness loss were 10 gm and 1.3 mm, respectively, but all results are acceptable because the maximum loss of thickness is below 3 mm.