Sodium Silicate and Sodium Hydroxide as Activators in Producing Green Building ?Bricks?

Green building design involves finding the balance between homebuilding and the ?sustainable environment by reducing CO and CO2 that affect the impact on ?environment. Using Sodium hydroxide (SH) and Soda silicate (SS) (Soda Sil 95) and ?using amorphous sodium and aluminum silicate in industry will reduce the impact on ?environment. In this study, 26 soil samples had been taken from Al-Karak district, from ?tow depths (15 and 30 cm) KS1 and KS2 respectively. KS1 and KS2 were dried and ?sieved for size fraction of (4.75 mm) (KSS). KSS were mixed with SH, SS and PC in ?various ratios (5%, 10%, 15%, 20%, 25% and 30%) to study the shear strength ?properties of mixed soils. Original soil (KS), soil size fraction of (4.75 mm) (KSS) and ?mixed soil were characterized for their physical and chemical properties. XRF and XRD ?are the used for the characterization KSS. Physical and mechanical testing was carried ?out for all soils and mixing bricks based on the ASTM.? The results indicates the compressive strength for KSS mixed with 30% cement was ??43.2kg/cm2 while the highest compressive strength using the same mix in bricks was ??6.8kg/cm2. ? For KSS mixed with 20% of sodium hydroxide, the produced bricks compressive ?strength was 9.46kg/cm2. Finally, bricks compressive strength of KSS mixed with 10% ?of Soda silicate were 46.8kg/cm2. The addition of (Cement, Sodium Hydroxide and ?Soda Silicate materials) to a silty clay soil in a proper quantity with proper compaction ?would lead to an increase in the shear strength capacity of the produced bricks, and it ?will decrease the swelling and shrinkage potential of the silty clay soil. SH and SS are ?found to enhance the shear strength properties