Construction request for stabilized soil mixing station:
Construction of the stabilized soil mixing station structure should be arranged at the end of spring and when the temperature is high. The daily minimum temperature during the construction period should be above 5 ° C. In areas with freezing, it should be completed half a month to a month before the first heavy freezing (-3 ~ -5 ° C) arrives.
During the construction of cement stabilized soil mixing station in the dry season, especially the cement-soil structure layer, special attention should be paid to climate change, so as not to expose the cement and mixture to rain. The construction should be suspended when the pressure is lowered, but the paved cement mixture should be compacted quickly. During the road mixing method, measures should be adopted to remove water from the surface of the lower layer, and the aggregates transported to the road should not be overheated and wet.
When constructing the cement stabilized soil mixing station structure layer, the following rules should be strictly observed:
(1) The soil mass shall be destroyed as much as possible. The maximum size of the soil mass shall not be greater than 15mm.
(2) The ingredients should be accurate.
(3) The cement shall be paved evenly during road mixing.
(4) Water and stir well.
(5) The thickness and elevation of the bottom layer shall be strictly controlled, and the cross-slope of the road arch shall be the same as that of the surface layer.
(6) Rolling stabilized soil mixing station should be carried out when the mixture is at or slightly greater than the best moisture content (in the case of very hot and dry weather, the bottom mixture can be 1% ~ 2% larger) until it reaches the following required pressure determined by heavy-duty compaction test Reality (minimum request).
