Single Slope Barrier – Technical Specification Guide

Standard Dimensions

Parameter	Measurement	Tolerance	Purpose
Height	1070mm	±10mm	Enhanced containment
Base Width	610mm	±5mm	Stability
Top Width	200mm	±5mm	Impact surface
Length	3050mm	±15mm	Standard unit
Face Slope	76.5° (constant)	±1°	Vehicle redirect
Weight	2.8 tonnes	±0.1t	Unit mass
Drainage Slot	100x150mm	±5mm	Water flow

Performance Specifications

Test Level	Vehicle Type	Mass (kg)	Speed (km/h)	Impact Angle (°)	Rating
TL-5	Tractor-Trailer	36,000	80	15	Pass
TL-5	Single Unit Truck	8,000	80	15	Pass
TL-5	Pickup Truck	2,270	100	25	Pass
TL-5	Passenger Car	1,100	100	25	Pass
TL-4	Single Unit Truck	8,000	80	15	Pass

Material Requirements

Component	Specification	Strength	Standard
Concrete	Class 50	50 MPa	ASTM C31
Primary Rebar	#6 (19mm)	Grade 60	ASTM A615
Stirrups	#4 (13mm)	Grade 60	ASTM A615
Connection Steel	Grade 50	350 MPa	ASTM A36
Anchor Bolts	Grade 8.8	800 MPa	ASTM F568M

Reinforcement Layout

Location	Bar Size	Spacing	Coverage
Vertical Face	#6 (19mm)	200mm	50mm
Horizontal Face	#5 (16mm)	300mm	50mm
Top Section	#4 (13mm)	200mm	40mm
Base Section	#6 (19mm)	150mm	75mm
Stirrups	#4 (13mm)	300mm	N/A

Installation Requirements

Parameter	Specification	Tolerance	Verification
Foundation	200mm Type 1	±25mm	Compaction test
Alignment	String line	±15mm	Survey check
Level	Design grade	±10mm	Digital level
Joint Width	20mm	+10mm/-5mm	Gap measure
Anchoring	As designed	±5mm	Template check

Connection Systems

Type	Components	Rating	Application
Pin & Loop	38mm pin	TL-5	Standard joint
Structure Mount	Base plate	TL-5	Bridge/wall
Transition	Variable height	TL-5	Height change
End Terminal	Impact head	TL-4	Terminal section
Emergency Opening	Quick release	TL-4	Access point

Maintenance Requirements

Item	Frequency	Action	Criteria
Visual Inspection	Monthly	Document condition	No damage
Joint Check	Quarterly	Verify connections	Tight/aligned
Level Survey	Annually	Check alignment	Within tolerance
Impact Check	Post-incident	Assess damage	Structural integrity
Drainage	Monthly	Clear slots	No blockage

Repair Specifications

Damage Type	Severity	Action	Timeline
Surface Spall	<75mm	Patch repair	1 month
Deep Spall	>75mm	Replace unit	1 week
Cracking	>0.3mm	Epoxy injection	2 weeks
Joint Damage	Any	Hardware replacement	24 hours
Base Movement	>25mm	Realignment	1 week