Introduction

PP Geogrid For Coal Mine is made from Polypropylene and fire retardant additive by antistatic technology.The PP Geogrid Mesh is formed by the process of extruding, longitudinal stretching and transverse stretching. PP mining geogrid has good flame retardant and antistatic properties, as well as advantages of being resistant to alkali corrosion and aging. It can be widely used on false roof, tunnel and protective shield to improve the safety.

Properties Of PP Geogrid For Coal Mine

*Friction does not easily produce static electricity

*Good flame retardancy

*Easy to wash coal

*Strong anti-corrosion ability and anti-aging

*Easy to construct and transport

*Strong bearing capacity on longitudinal and transverse direction

Advantages Of PP Geogrid For Coal Mine 

*Easy to install with improve installation efficiency

*Low cost and beautiful appearance

*Easy to handle with minimized injury during installation

*Good safety, to protect the safety of underground workers

*This plastic mesh is biaxially stretched rather than woven, so the mesh creep is small and the mesh size is uniform.

Application Of PP Geogrid For Coal Mine

*It is mainly used for false top and protection of  thick coal seam in coal mine

*It can be used as the supporting material of bolt roadway, supporting roadway, shotcrete roadway and so on

*It can be used as reinforcement material for mine roadway engineering, slope protection engineering, underground civil engineering and traffic road engineering

*It is the best alternative to plastic woven mesh and steel wire mesh

*It provides immediate and effective support to mine roofs and ribs, preventing collapses and ensuring safety.

Specification PP Geogrid For Coal Mine :

Index Properties	Test Method	Unit	MD Values	TD Values
Polymer	–	–	PP
Tensile Strength @ 2% Strain	ASTM D 6637	kN/m	10.5	10.5
Tensile Strength @ 5% Strain	ASTM D 6637	kN/m	21	21
Ultimate Tensile Strength	ASTM D 6637	kN/m	30	30
Structural Integrity
Junction Efficiency	GRI GG2	%	93
Flame Retardant Properties
Maximum Flame Propagation	ASTP 5011	m	1.2
Average Duration of Burning for Test Set	ASTP 5011	minute	1.0(max)
Maximum Duration of Burning for Single Test	ASTP 5011	minute	2.0
Dimensions
Aperture Dimensions		mm	60	65
Roll Width		m	2/ 3.95
Roll Length		m	50

 

Index Properties	Test Method	Unit	MD Values	TD Values
Polymer	–	–	PP
Tensile Strength @ 2% Strain	ASTM D 6637	kN/m	14	14
Tensile Strength @ 5% Strain	ASTM D 6637	kN/m	28	28
Ultimate Tensile Strength	ASTM D 6637	kN/m	40	40
Structural Integrity
Junction Efficiency	GRI GG2	%	90
Flame Retardant Properties
Maximum Flame Propagation	ASTP 5011	m	1.2
Average Duration of Burning for Test Set	ASTP 5011	minute	1.0(max)
Maximum Duration of Burning for Single Test	ASTP 5011	minute	2.0
Dimensions
Aperture Dimensions		mm	60	65
Roll Width		m	2/ 3.95
Roll Length		m	50