The material of soil binder is the dominant factor affecting stabilization effect

The material of soil binder is the dominant factor affecting soil stabilization effect, it is divided into solidified material and stabilized material. Solidified materials are mainly cement and fly ash (blast furnace slag and fly ash) gel material. Blast furnace slag and fly ash must be caused by evocating agent such as cement and lime to produce hydration condensation.The combination of initiator and gel material mainly has: cement + fly ash cement, cement + blast furnace slag, cement + kiln ash; lime + fly ash, lime + blast furnace slag, lime + kiln dust; cement + lime + fly ash, cement + lime + blast furnace slag, cement + lime + kiln ash.



Contaminated by heavy metal such as lead, zinc, cadmium, copper and other heavy metals cation or cationic composite in soil and sediment, can be directly used gel material for solidification, the general effect is very good, you can also add clay or zeolite to enhance. Soil contaminated by arsenic and mercury and sediment solidification are generally required to be intensified. As to add calcium oxide material to improve Ca/As, promote the precipitation of calcium arsenate; use zero valent iron, iron salt and ferric oxide, which has affinity for arsenic, can enhance the solidification effect; oxidizing agents convert As (III) to As (V), which also increases the cure effect. Mercury added sulfur and sulfide form mercuric sulfide precipitation, or adding activated carbon, modified activated carbon, modified zeolite adsorbing material etc. as stable mercury.

In our country, the combination of cement and fly ash is the main material for the soildification of contaminated soil. At present, no additives are used to adjust the properties of the soildified blocks, such as adding water reducing agent to strengthen the strength of the solidified blocks, adding fillers to seal and reducing the pores of the solidified blocks, and reducing the permeability.

The fly ash truck is feeding the material of soil binder into the storage tank




PARFECT soil stabilization equipment can transfer the soil binder through the air compressor to the mixing head which is mounted on the excavator, and mix with the soil to improve the strength of the foundation.

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