A Study on the Abrasion Resistance of Hydraulic Structures with Different Repair Mortars

Table 2

Properties of repair mortar materials.

S. No.	Type of repair mortar	Properties	Values
(1)	Silica fume mortar	Compressive strength (at 28 days)	85 MPa
		Flexural strength (at 28 days)	11 MPa
		Hydraulic abrasion resistance index (at 28 days)	Abraroc	0.5–0.6
			Glass	1
			Granite	0.35–0.80
		Wear resistance Bohme	<6 cm^3/50 cm^2
(2)	Polymer-modified mortar	Compressive strength (at 28 days, +30°C)	55 MPa
		Flexural strength (at 28 days, +30°C)	5 MPa