Research Article
Improving the Mechanical Properties of Red Clay Using Xanthan Gum Biopolymer
Table 2
The compressibility indexes of confined compression test.
| Test groups | Curing ages (days) | (MPa-1) | (MPa-1) | (MPa-1) | |
| Red clay | 0 | 0.176 | 12.129 | 0.082 | 0.053 | | 0.109 | 20.687 | 0.048 | 0.034 | | 0.098 | 20.530 | 0.049 | 0.040 | | 0.102 | 19.697 | 0.051 | 0.043 | | 0.130 | 15.247 | 0.066 | 0.063 | | 0.129 | 15.510 | 0.064 | 0.053 |
| Red clay | 7 | 0.143 | 15.276 | 0.065 | 0.042 | | 0.108 | 19.247 | 0.052 | 0.037 | | 0.097 | 20.674 | 0.048 | 0.040 | | 0.080 | 24.985 | 0.040 | 0.033 | | 0.103 | 20.917 | 0.049 | 0.032 | | 0.122 | 16.405 | 0.061 | 0.030 |
| Red clay | 14 | 0.121 | 17.423 | 0.057 | 0.047 | | 0.104 | 19.079 | 0.052 | 0.042 | | 0.069 | 29.025 | 0.034 | 0.033 | | 0.065 | 30.674 | 0.033 | 0.029 | | 0.087 | 22.879 | 0.044 | 0.039 | | 0.104 | 19.079 | 0.052 | 0.043 |
| Red clay | 28 | 0.096 | 20.734 | 0.048 | 0.036 | | 0.081 | 24.420 | 0.041 | 0.036 | | 0.071 | 28.100 | 0.036 | 0.031 | | 0.058 | 33.140 | 0.030 | 0.029 | | 0.092 | 21.448 | 0.047 | 0.037 | | 0.102 | 19.536 | 0.051 | 0.026 |
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