Figure 6.
The graph depicts the relationship between the void index, labelled as I v, on the Y-axis, ranging from negative 2 to 1.5, and the effective vertical stress, labelled as s v, on the X-axis, ranging from 1 to 10000 kilopascals. Several data series represent cement content of 1 percent, 2 percent, and 3 percent, categorised by cutting orientation, vertical and horizontal, and shown using distinct symbols. The legend notes a reference to Burland I C L from 1990, with specific effective vertical stress values indicated for each series. The data points appear as markers connected by lines, depicting a downward trend in void index with increasing effective vertical stress. Additionally, vertical and horizontal trends can be identified, indicating data collection methods used.Iv-log σ′v curves of lightly cemented kaolin with vertically and horizontally cut specimens and initial water content at 1.5wL