Analysis of Influence of Soil Solidifying Agent Content on Compressive Strength

The relationship between soil solidifying agent content and 7d unconfined compressive strength: when the solidity is 96%, 97% and 98%, the soil solidifying agent is used as a road bed with a content of 10%, and the 7-day unconfined compression resistance The intensity reaches 0.86MP or more, and it can meet the requirements of the 7-day compressive strength of highways and first-class highway base layers of ≥0.8 MP. When the compaction degree is 96%, 97%, and 98%, when the DHT soil glucoside is used at 6%, the 7-day unconfined compressive strength of the DHT reaches 0.81 MP or more, which can meet the requirements of highways and highways. The compressive strength of grass-roots 7 days is ≥0.8 MP; when the dosage of DHT soil glucan is 8%, the 7-day unconfined compressive strength of DHT is above 1.0MP; the dosage of DHT soil occludin is 10% At that time, its 7-day unconfined compressive strength reached 1.42 MP or more. This shows that the amount of soil solidifying agent has a significant impact on the stability of the soil, in the same time meet the engineering requirements, you can choose the appropriate amount to save the economic cost.

It can be seen from the analysis of the test results that with the increase in the amount of the curing agent, the 7-day unconfined compressive strength of the 7-day unconfined compressive strength increases regardless of whether the soil solidifying agent or the DHT soil glucurin improved soil is used. The reason is that with the increase in the amount of the curing agent, the electrochemical reaction can be fully reacted, and the hydrophilic charge of the soil and soil particles is substituted or degenerated, so that the soil loses its hydrophilic ionized component permanently and no longer absorbs water. At the same time, the compactness and strength of the soil are greatly improved, so that the 7-day compressive strength also increases with the increase of the amount of the curing agent.

The effect of compaction on the compressive strength of the hardener stabilized soil From the traditional theory, the degree of compaction increases, the sample is more compact, and the 7 day unconfined compressive strength is also greater.

When the amount of soil solidifying agent is 4%, compressive strength of 96% and 97% compressive strength are all 0.38MP, but when the compaction degree is 98%, its compressive strength is increased again; Soil solidifying agent When the blending amount is 6%, the compressive strength with a compaction degree of 96% is 0.52MP, but when the compaction degree is 98%, the compressive strength of the compressive strength increases again; when the blending amount is 10%, As the degree of compaction increases, the compressive strength increases. When the compaction was 96% and 97%, the strength of the test specimens mixed with soil solidifying agent did not change much, and the expected solidification effect was quite different. The specific reason needed to increase the indoor test for further exploration. The variation regularity of soil stabilized with DH-agglutinated soil is ideal, that is, with the increase of compaction degree, the compressive strength also increases.

The effect of different types of curing agents on the compressive strength of stabilized soils: Although the clay content in the soil is low, the number of non-adhesive silt granules is high, and curing is more difficult. The effect of a stabilized soil with a curing agent is still ideal, but different. The soil stabilizers have different effects on the stability of stabilized soils. When the compaction degree is 95%, 96%, and 97%, the 7-day compressive strength of the soil with DHC soil integrin is greater than that of the soil-curing agent. . To meet the needs of the actual project, combined with economic factors, select the corresponding curing agent.

Conclusion: The comparative analysis of the 7-day unconfined compressive strength test results with soil solidifying agent and DHC soil integrin stabilized soil showed that: (1) With the increase of the curing agent content, its 7 days without side Limit compressive strength increases. The amount of curing agent has a significant impact on the stability of the soil, in the same time meet the engineering requirements, you can choose the appropriate amount to save economic cost. (2) From the point of view of universal laws, the compressive strength of stabilized soils with hardeners increases with increasing compaction. Adding different curing agent soil, its 7 days compressive strength is different, in the actual project needs, combined with economic factors, select the corresponding curing agent.