Analysis on the Strength of Cement Mortar Mixed with Construction Waste Brick Powder

Table 2

Strength test scheme for cement mortar specimens.

Serial number	Brick powder content (wt%)	Serial number	Brick powder + silica flour
			Brick powder content (wt%)	Silica flour content (wt%)
Ctrl	0	—
BP1-10	10	BP1-5:5	10	10
BP1-20	20	BP1-6:4	12	8
BP1-30	30	BP1-7:3	14	6
BP2-20	20	BP2-5:5	10	10

Notes: Ctrl is the control specimen, which did not contain any brick powder or silica flour. BP1 and BP2 are the fine and coarse brick powder, respectively. Only brick powder was added to replace a certain portion of cement (or the content of brick powder), as indicated by the numbers in the table. Both brick powder and silica flour were added to replace cement. The ratios indicate the ratio of brick powder content to silica flour content.