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fly ash
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Sheet1MIX DESIGN ALKALI ATIVATED COMPOSITES { GGBFS + FLYASH}%Na2O=6.5%=0.065%Sio2=6.5%=0.065Sio2/Na2O=1Assuming quantity of blended material =1000gmSo, quantity of Na2O required =6.5%of flyash65gmquantity of sio2 required =6.5%of flyash65gmGiven,1000gmNa2Sio3 contains=265gmof Sio2&80gmof Na2O&655gmof H2OSo, to get 60 gm of Na2O , quantity of Na2sio3 required =65gms of Na2O,Quantity of Na2SiO3 =245.2830188679gm of Na2sio31000gmof Na2sio3 contain=80gmof Na2O245.2830188679gmof Na2sio3 contain=19.6226415094gmof Na2O1000gmof Na2sio3 contain=655gmof H2O245.2830188679gmof Na2sio3 contain=160.6603773585gmof H2ORemaining Na2o=45.3773584906gmwas obtained from NaOH soln.1000gmof NaOH in pellets form contain=775gmof Na2O&225gmof H2O775gmof Na2O is present in =1000gmof NaOH pellets45.3773584906gmof Na2O is present in =58.5514303104gmof NaOH pelletsCalculation of Water [H2O] content :1000gmNa2Sio3 contains=655gmof H2O245.2830188679gmNa2Sio3 contains=160.6603773585gmof H2O1000gmof NaOH in pellets form contain=225gmof H2O58.5514303104gmof NaOH in pellets form contain=13.1740718198gmof H2oTotal water content from chemicals Na2Sio3+NaOH pellets =173.8344491783gmof H2OSAMPLE CALCULATIONFixing up Water /Binding material ratio=0.29Total quantity of binder required= 1000 +65of Sio2obtained from Na2SiO319.6226415094OF Na2O obtained from Na2SiO345.3773584906OF Na2O obtained from NaOHWater required=327.7EXTRA Water to be added mechanically=153.8655508217Considering NaOH pellets to be 97% pure=97%100gmof NaOH pellets=103gm58.5514303104gmof NaOH pellets=60.3079732197gmof NaOH pelletsTherefore QUANTITY OF NA2SIO3=245.2830188679QUANTITY OF NAOH=60.3079732197CHEMICAL WATER TOTAL=173.8344491783Aggregate Proportions:All - in - aggregate =70%0.7of total Binding Material700gmcoarse Aggregate=60%0.6of All - in - aggregate420gmFine aggregate =40%0.4of All - in - aggregate280gmBinder/sand=1Sand=1000gm
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