Effects of Using Silica Fume and Polycarboxylate-Type Superplasticizer on Physical Properties of Cementitious Grout Mixtures for Semiflexible Pavement Surfacing

Table 3

Selected designs and flexural strength of cementitious grout mixtures.

Grout mixture design	Percentage of SP (%)	Water/cement ratio	Flowability (s)	Compressive strength (N/mm^2)		Flexural strength (N/mm^2)
				1 day	28 days	7 days	28 days
95% OPC + 5% SF	1.5	0.30	18.0	55.4	91.7	6.5	7.2
95% OPC + 5% SF	2.0	0.30	15.0	57.5	92.5	6.7	9.1
95% OPC + 5% SF	2.0	0.32	14.2	57.1	91.5	5.8	8.3
100% OPC	2.0	0.30	19.3	59.3	87.2	3.8	6.1