Study on Restoration Materials for Historical Silty Earthen Sites Based on Lime and Starch Ether

Table 2

Physical indexes of the original site soil and test soil.

Materials	Indicators
	Water content (%)	Specific gravity (%)	Liquid limit (%)	Plastic limit (%)	Plastic index
Site soil	6.55	2.65	14.2	9.5	4.7
Test soil	6.80	2.66	14.5	8.6	5.9