الفهرس 
Aim of the WorkOnly 14 pages are availabe for public view
Abstract
Geopolymer is a class of inorganic polymers formed by reacting silica-rich and alumina-rich solids with a high conc. alkaline solution, which combines the properties of polymers, ceramics and cements. Physicochemical and mechanical properties of Geopolymer materials such as (cement, mortar, and concrete) are studied. Mixes are prepared using different liquid/solid ratios (L/S) by weight. Sodium hydroxide (SH) and commercial sodium silicate liquid (SSL) are used as an activator materials which is dissolved in the mixing water. The hydration characteristics of the mixes have been tested by determination of bulk density, total porosity, combined water, compressive strength, and X-ray diffraction (XRD) analysis at different time intervals from 1 up to 180 days in water. The experimental results showed that the combined water content of the Geopolymer materials gradually increases up to 180 days in all mixes.
The bulk density increases while the total porosity decreases, as a result of the chemical reaction (Geopolymerization process) with formation of new products fill the pores. The compressive strength increases up to 180 days in all mixes.
The data show that mixes SSF1 (95 % GGBFS+5 % SF) activated by (24.4 % by wt. SSL, and 4 M SH), S3 (100 % GGBFS) activated by (21.7% by wt. SSL, and 4 M SH), and SMK1 (50 % GGBFS+50 % MK) activated by (31.8 % by wt. SSL, and 4 M SH) all in 95% R.H conditions are the most appropriate binding materials as (Geopolymer paste) that have optimum different properties. GM 3 (100 % GGBFS) with a standard sand show the most appropriate mortar mix in different property.GP Concr. 4 (100 % GGBFS) with a standard sand, and dolomite aggregate in 95% R.H show the most appropriate concrete mix in different property, that can be used as alternative building material to the ordinary Portland concrete.