Rapid Identification and Quantitative Analysis of Polycarboxylate Superplasticizers Using ATR-FTIR Spectroscopy Combined with Chemometric Methods

Table 1

Detailed information of PCEs used in this paper.

PCE	Manufacturer	Batch	Water-reducing rate (%)	Bleeding rate (%)	Setting time difference (min)		Compressive strength ratio (%)
					Initial setting	Final setting	7 d	28 d
A1	A	1	31	9	−10	+35	194	168
A2		2	32	18	+65	+5	194	167
A3		3	29	9	−25	−65	186	164
A4		4	28	12	−20	−55	165	142
B1	B	1	35	52	+120	+120	197	173
B2		2	27	12	+100	—	163	149
B3		3	26	22	+105	—	153	147
B4		4	26	35	+120	—	192	174
C1	C	1	27	27	+95	+70	198	169
C2		2	29	42	+100	+60	190	165
C3		3	32	12	+95	+105	194	168
C4		4	28	15	+95	+40	190	169
D1	D	1	35	50	+120	+120	178	173
D2		2	27	60	+120	—	160	146
D3		3	28	20	+80	+70	161	155
D4		4	27	15	+100	—	158	147