1.1 Description描述

Micro-fine cement is Portland cement based cements composed of ultrafine particles and are designed for injection into loose soils, rock and concrete. Because of micro-fine cement’s small particle size (the fineness largest grain size passing D95 is < 16.0 µm and Blaine value> 600 m2/kg.), it penetrates very well into tight joints, fissures and pore spaces to provide a water-tight grouted rock or soil mass. It can be used as grouting materials after adding water reducing agent (GC1).

超细水泥是经特殊设备精细研磨而成的新一代无机刚性超细材料，利用超细水泥再添加其他外加剂(例如GC1减水剂)、掺合料搅拌而成的浆液，可以用于补强加固工程的灌注作业。

1. 2Application应用范围

· Rock injection: Tunnels, caverns, mines, etc. used for pre- and post excavation injection.

· Ground water sealing and ground stabilization.

· Soil injection.

· Dam foundation injection

· Prepacked injection.

· Contact injection.

．水利工程中大坝坝体及坝基裂缝灌浆；

．灌筑地下防水帷幕，截断渗透水源，整体抗渗堵漏；

．加固和提高松软土及岩石的力学强度，修复砼结构和恢复其整体性；

．纠正因地层不稳定引起不均匀沉降而导致的大坝和高层建筑物的开裂、倾斜；

．公路、桥梁、机场跑道等地基下陷的补浆加固；

．各种地下建筑物开挖前的预处理以及地质钻探中复杂地层钻孔中的护孔固壁，止涌堵漏等工程；

．复杂地层的流沙层固沙及淤泥质土层的固结。