Experimental Study on Physicochemical and Mechanical Properties of Mortar Subjected to Acid Corrosion

Table 5

Uniaxial compressive strength of mortar.

HCl (pH = 1)			HCl (pH = 2)			H2O (pH = 7)
T (days)	S	M (MPa)	T (days)	S	M (MPa)	T (days)	S	M (MPa)
0	#1∼3	43.56	0	#31∼33	44.21	0	#61∼63	43.28
10	#4∼6	38.42	10	#34∼36	40.15	10	#64∼66	43.12
20	#7∼9	34.37	20	#37∼39	37.93	20	#67∼69	42.81
30	#10∼12	30.88	30	#40∼42	36.02	30	#70∼72	42.56
40	#13∼15	28.87	40	#43∼45	34.36	40	#73∼75	42.03
50	#16∼18	27.06	50	#46∼48	33.18	50	#76∼78	41.56
60	#19∼21	25.32	60	#49∼51	32.27	60	#79∼81	41.13
70	#22∼24	22.93	70	#52∼54	30.85	70	#82∼84	42.31
80	#25∼27	21.14	80	#55∼57	29.14	80	#85∼87	41.52
90	#28∼30	20.05	90	#58∼60	28.56	90	#88∼90	40.08

S represents the serial number of the mortar specimen; M represents the mean value (three samples) of compressive strength.