A kind of soil solidifying agent and its preparation method, the method for solidifying soil
A technology of soil curing agent and stabilizer, which is applied in the field of soil curing agent and its preparation, and soil curing, which can solve the problems of a large number of heat sources, large consumption, and economical improvement, so as to achieve high economic value and reduce the difficulty of reuse Effect
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[0069] The preparation method of the soil solidifying agent comprises: mixing each component in the raw materials. In practice, it is preferable to fully mix the titanium extraction tailings, steel slag, desulfurized gypsum and sodium sulfate waste slag before mixing with the stabilizer. In this way, the undesired mutual interference between the stabilizer and other raw materials can be avoided through step-by-step mixing, which is beneficial to maintaining and improving the quality of the soil curing agent.
[0070] In the example of the present invention, a composite soil solidifying agent is prepared by adding titanium tailings, steel slag, desulfurized gypsum slag, and sodium sulfate waste slag in different proportions, which can achieve titanium tailings extraction. The purpose of large-scale utilization can be realized without dechlorination treatment, and the prepared soil solidifying agent can be used for road construction base, subbase filler, slag yard slope treatmen...
Embodiment 1
[0077] Use 54% of titanium extraction tailings, 15% of steel slag, 20% of desulfurized gypsum slag, 10% of sodium sulfate waste slag, and then add 1% of stabilizer to mix to prepare a soil solidifying agent.
[0078] The soil solidifying agent is mixed with cohesive soil to solidify the soil. The specific steps are: add this kind of soil solidifying agent into the soil at a ratio of 6%, and make a cylindrical test piece of 5cm*5cm in accordance with the requirements for the production of fine-grained soil samples in the "Test Regulations for Inorganic Binder Stable Materials in Highway Engineering". pieces. The moisture content of the soil was adjusted to 15%, and the test pieces were prepared by compaction molding method, and the prepared test pieces were put into the curing box for curing. The 28-day compressive strength of the specimen was 4.23MPa.
Embodiment 2
[0080] Use 60% of titanium extraction tailings, 14% of steel slag, 17% of desulfurized gypsum slag, 8% of sodium sulfate waste slag, and add 1% of stabilizer to mix to prepare a soil solidifying agent.
[0081] The soil solidifying agent is mixed with cohesive soil to solidify the soil. The specific steps are: add this kind of soil solidifying agent into the soil at a ratio of 6%, and make a cylindrical test piece of 5cm*5cm in accordance with the requirements for the production of fine-grained soil samples in the "Test Regulations for Inorganic Binder Stable Materials in Highway Engineering". The moisture content of the soil was adjusted to 15%, and the test pieces were prepared by compaction molding method, and the prepared test pieces were put into the curing box for curing. The 28-day compressive strength of the specimen was 5.14MPa.
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