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

Table 2

Influence of silica fume replacement on the compressive strength performance.

Grout mixture description			Compressive strength (N/mm^2)
Grout content	w/c ratio	% of SP	1 day	28 days
100% OPC	0.30	1.5	57.6	85.5
		2.0	59.3	87.2
	0.35	1.5	40.2	68.1
		2.0	38.3	66.2
95% OPC + 5% SF	0.30	1.5	55.4	91.7
		2.0	57.5	92.5
	0.35	1.5	54.4	86.1
		2.0	57.3	87.0
90% OPC + 10% SF	0.30	1.5	57.5	90.2
		2.0	59.7	92.8
	0.35	1.5	55.4	88.6
		2.0	57.1	89.7