Customized Composite Sleeper

Composite railway sleepers are made of recycled plastic, rubber or glass fiber to replace traditional wooden or concrete sleepers. They are lightweight, corrosion-resistant, long-life and environmentally friendly, and are gradually becoming an important material for upgrading global railway infrastructure.

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Description

Technical Parameters

Performance advantages (compared with traditional sleepers):

Corrosion resistance: no decay, acid, alkali and salt resistance (suitable for coastal/chemical areas)
Maintenance-free: no anti-corrosion treatment is required, and the service life can reach 50 years+
Shock absorption and noise reduction: elastic modulus is close to that of wood, better than concrete
Environmental protection: recyclable, reducing deforestation

composite railway sleepers specification

No.	Test Item	CJ/T 399-2012 Technical Requirement	JIS E1203 Rrequirement	Unit	GNEE Steel
1	Bending Strength	≥70	≥70	MPa	1#	2#	3#
					124	126	117
2	Flexural modulus	≥6	≥6	GPa	4#	5#	6#
					10	11	13
3	Longitudinal com pression strength	≥40	≥40	MPa	7#	8#	9#
					107	50	93
4	Shear strength	≥7	≥7	MPa	10#	11#	12#
					11	10	12
5	Adhesive shear strength	≥7(Base-material breakage)		MPa	13#	14#	15#
					10	8	12
6	Water absorption	≤10	≤10	Mg/cm3	16#	17#	18#
					4	3	4
7	The finished product resists bending load	≥170	≥170	kN	19#
					210
8	Screw spikes pullout strength	≥40	≥30	kN	20#	21#	22#
					44	46	58
9	Mass density	0.74±0.10	0.74±0.10	g/cm3	23#	24#	25#
					0.72	0.65	0.68
10	Fatigue performance	105 times,No abnormality		/	26#
					105 times,No abnormality
11	Flame retardant	After the ignition source is removed, there is no visible flaming or continuous flaming of the sample, but the front of the flame does not exceed the 25mm mark		/	27#	27#	27#
					After the ignition source is removed, there is no visible flaming or continuous flaming of the sample, but the front of the flame does not exceed the 25mm mark	After the ignition source is removed, there is no visible flaming or continuous flaming of the sample, but the front of the flame does not exceed the 25mm mark	After the ignition source is removed, there is no visible flaming or continuous flaming of the sample, but the front of the flame does not exceed the 25mm mark
12	breakdown voltage	≥20	≥20	kV	30#	31#	32#
					Thickness: 20mm	Thickness: 20mm	Thickness: 20mm
					35 No breakdown	35 No breakdown	35 No breakdown
13	Surfance resistance	≥1*1010	≥1*1010	Ω	33#	34#	35#
					4.1*1015	4.1*1015	4.9*1015
Remark	1. Breakdown voltage: Sample size: 1008020mm (lengthwidththickness), using unequal diameter electrodes in the air, ambient temperature: 20ºC, humidity: 40%. 2. Surface resistance: sample size: 1001004mm (lengthwidththickness), ambient temperature: 20ºC, humidity: 40%, test voltage: 1000V. 3. Underlined items are unqualified items;