Experimental Study on Deformation Behavior and Compressive Strength of Concrete Cast in Steel Tube Arches under Low-Temperature Conditions

Table 1

C55 concrete test mix ratios (kg/m³).

Materials	Cement	Water	Fly ash	Expansive agent	Mineral powder	Silica powder	Sand	Stone	Water reducing agent	Total	Remarks
#1	400	157	75	0	45	10	711	1052	10.60	2460.6	Benchmark group
#2	400	157	45	50	25	10	711	1052	10.60	2460.6	Calcium expansive agent
#3	400	157	45	50	25	10	711	1052	10.60	2460.6	Ca-Mg composite expansive agent