... product strength more than 20Mpa. 26 pieces of standard bricks are moulded every time, taking 13~16 seconds, ... heat. Moreover, hydration and hydrothermal synthesis of raw bricks accelerate at wet hot conditions of over 174°C, ... which increases the hydration products in bricks——the content of several hydration products such as CSH ... making machine ,hydraulic pressure machine,cement bricks , fly ash ...