(1) material selection: the content of calcium and magnesium in lime must be Grade III, the water content should not be greater than 3%, the content of 0.075 in fly ash should be greater than 65%, and the water content should be less than 25%, and crushed (gravel) stones should be used. The maximum particle size qualified by classification is less than or equal to 4 mm
(2) Mixing: even, without adding lime and fly ash, and the water content should be greater than the optimal water content for construction, depending on the temperature.
(3) Paving: Stone cannot be piled up, and it is not allowed to be covered with lime or fly ash.
(4) One-step molding, which can not be patched after final pressing.
(5) Sprinkle water for health in time to limit traffic.