Experimental Study on Performance Influencing Factors and Reasonable Mixture Ratio of Desert Sand Ceramsite Lightweight Aggregate Concrete

Table 6

Factor levels in orthogonal tests.

Level	Water-binder ratio A	Sand ratio B (%)	Desert sand substitution rate C (%)	Fly ash content D (%)	Empty column E
1	0.35	35	0	0	1
2	0.4	38	20	15	2
3	0.45	41	30	20	3
4	0.5	45	40	25	4