Influence of Humic Acid on the Strength of Cement-Soil and Analysis of Its Microscopic Mechanism

Table 2

Test conditions.

Test method	HA content (λ/%)	Cement rate (β/%)	Water-cement ratio (c)	Water content (/%)	Void ratio (e)	Soaking time (/d)
UCS	0, 5,10, 15, 20, 25, 30	15	0.5	24	0.8	90
SEM, MIP, XRD	0, 10, 20, 30