Synthesis of Pectiniform Polyurethane-Modified Polycarboxylate and Its Preliminary Application in Ultrahigh-Performance Concrete

Table 5

Compressive strength of UHPC.

Number	Compressive strength (MPa)
	M-PCE		Sika
	3 d	28 d	3 d	28 d
N1	71.6	107.4	74.8	108.8
N2	74.5	100.9	82.1	115.4
N3	70.0	115.5	83.7	123.3
N4	66.7	116.3	64.4	118.8
N5	71.2	101.4	80.4	113.7
N6	70.9	99.5	78.3	107.4
N7	64.7	118.6	84.8	126.9
N8	76.9	112.5	72.4	113.8
N9	81.0	117.4	86.9	115.6
N10	79.3	104.6	81.5	101.5
N11	77.6	119.4	89.3	116.9
N12	80.0	117.4	80.0	112.5
N13	85.8	108.5	83.8	106.2
N14	82.7	110.3	84.7	117.9
N15	86.4	118.7	83.6	109.1