It can be seen from Figure 10 and Table 11 that the maximum dry density of improved high liquid limit soil showed an increasing trend with the tunnel slag content.
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Performance Evaluation of Tunnel-Slag-Improved High Liquid Limit Soil in Subgrade: A Case Study.
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The sentences
The cohesion of improved high liquid limit soils presented a decreasing trend as the tunnel slag content increased, but the internal friction angle increased with the content.