Application of Qiandao QD85 Grouting Material in Prefabricated Buildings

High-strength, non-shrink grouting for reliable structural connections and assembly efficiency.

Qiandao QD85 grout is specially formulated for prefabricated construction applications, delivering excellent performance in structural connections, component assembly, and reinforcement. It features high early strength, stable volume stability, negligible bleeding, and strong bonding strength, effectively ensuring the safety, durability, and overall stability of prefabricated buildings.

Widely used in precast concrete component connections, sleeve grouting, joint sealing, and structural reinforcement, QD85 grout helps improve construction efficiency, reduce maintenance costs, and meet strict engineering standards for modern prefabricated construction projects.

test items		Performance indicators
		QD-85	QD-100
fluidity/mm	initial	≥300
	30min	≥260
Compressive strength/MPa	1d	≥35	≥40
	3d	≥60	≥70
	28d	≥85	≥100
Vertical expansion rate	3h	≥0.02-2
	24h – 3h	0.02-0.4
28d self-drying shrinkage/%	≤0.045
Chloride ion content/%	≤0.03
Water bleeding rate/%	0