1. MLS快速可移动式路面加速加载设备 ——为“一带一路”建设添力
MLS – Mobile Load Simulator
Powering for “Belt and Road“
Yuchen Wang王于晨
SACTCC 南非-中国交通合作中心

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3. PaveTesting UK – MLS SA International manufacturing and servicing (TIPTOP China Limited - China)
PaveTesting – MLS video

4. Basic Pave®MLS Specifications
Pave®MLS11
Pave®MLS30/33
Pave®MLS66/69
Wheel Carriages #
4 wheel bogies
6 wheel bogies
Full load test section length mm
1070
3000/3300
6600/6900
Tyre footprint length
1420
4000
7600
Traffic Wheel width 80
590
Trafficking width (lateral traffic width)
(0 to ±75 wander)
(0 to ±500 mm wander)
Lateral Traffic Load Distribution
Gaussian or channelised
Gaussian, step function, channelised or any user definable distribution
Wheel description and configuration
single
dual / super single
dual / super single/ aircraft
Tyres
Vredestein 6 ply pneumatic – 300mm diameter
Goodyear 285/70 R19.5 and super single 495/45 R22.5
Goodyear 305/70 R22.5 and super single 495/45 R22.5 or H40x14 aircraft
Tyre pressure
kPa
Wheel load kN
Wheel suspension and load control
Constant Load - Mechanical Spring
Costant load - Pneumatic Hydraulic
Wheel velocity
m/s
0.5 to 2.5
1.5 to 6
Nominal maximum wheel passes
# / h
7200
6000
Rut depth (max) 10 40
Noise level dB -
85 at 7.2m
Fabrication unit
Metric system
Life span of structural frame
30 Years subject to normal wear and tear.
Expected fatigue of bogie frames measured in machine load cycles
100 million
Mass kg
700
39,000
46,000
MLS dimensions m
2.7L x 0.7W x 1.2H
11.2L x 2.6W x 3.1H
14.8L x 2.6W x 3.1H

5. Pave®MLS Advantages
12 times faster: up to 22km/h + up to 6 wheel bogies
Movable, Self-walking, for indoor and outdoors
Wandering test
LIM technology - Linear Induction Motors
Low cost running and maintenance

6. Global MLS Users
Total 35 units
Total 100,000,000+ loadings

7. Relational / Technical support
University of Pretoria, South Africa
Acknowledgement: Fred Hugo & Johan Muller

8. 2016 APT 2016 conference, Costa Rica More than 8 papers
High Temperature Deformation
Validating Efficiency of Reinforcement Grids
Comparative Evaluation (WMA)
Non-Destructive Pavement Structural Analysis
HMA Resistance to Reflective Cracking Using Geo-composites
Performance of UV Irradiation Aged Asphalt Mixtures
Bearing Capacity of Standard Pavements
Effects of Surface Condition on Non-uniform Contact Stresses

9. Standards
South Africa - SANS series of Civil engineering test methods SANS 3001-PD1:2015 Edition 1
Determination of permanent deformation and moisture sensitivity in asphalt mixes with the MMLS3 - accepted for publication

10. Programs VTI – Blacksburg VA: Texas: South Africa:
Collaborative research project (scaled MLS11 & f-s APT) completed & reported
Texas:
MLS11 testing on sections for evaluating skid resistance evaluation (Pecos, Texas)
South Africa:
Commercial evaluation of pavements as per standard testing protocols - > 70 tests/year

11. 2017 Southeast University & JSTI Group, China:
New MLS66 & MLS11 completed installation in May Planned to evaluate fatigue life of typical asphalt pavements with Cement Treated Base (CTB). Also maintenance options.

12. 2017 Changsha University of Science & Technology, China:
New MLS69 is arriving in Changsha December New laboratory has been ready for MLS69 arrival.

13. MLSUG Full-scale
SEU & JSTI
Liaoning
EMPA
Changsha
BASt
Tongji

14. MLSUG 1/3 scale
Out of China
JSTI
Tongji
Guangdong
Changsha

15. MLSUG Worldwide – Belt and Road and in China – 15 Users, 20 Units
MLS66/69 full scale system users (4 units):
Tongji University
Liaoning Transportation Research Institute
SEU & JSTI
Changsha University of Science & Technology
MLS11 1/3 scale system users (15 units):
Tongji University x 2
Chang’an University
Chongqing Jiaotong University
Inner Mongolian Agricultural University
Hebei University of Technology
Southeast University & JSTI
RIOH of MOC
Shanxi Transportation Research Institute
Heilongjiang Transportation Research Institute
Yunnan Highway Science Technology Institute
Yunnan Jiaotong College
Guangdong Hualu Transportation Technology Co., Ltd.

16. MLSCUG- MLS Chinese User Group
How to get same testing results by different MLS users?
How to compare Full Scale and 1/3 Scale MLS systems results?
How to improve communication and co-operation between MLS users?
How to share papers each other?
How to calibrate the MLS systems?
How to get latest APT news and trends in the world?
How to develop Chinese testing standards for MLS system?
Answer: MLS Chinese User Group (MLSCUG)

17. MLSCUG- MLS Chinese User Group
Sponsor and Organization: TIPTOP China Limited, also as servicing supplier
WeChat Group - MLSCUG (MLS Chinese User Group)
MLS User Group Meeting every quarter
Main participators: all F-S MLS users
Activity participators: all MLS users
Potential participators: all interested and potential MLS users, other APT equipment users
Suggestions?

18. MLSCUG established at 1st WTC
MLSCUG- MLS Chinese User Group established at 1st WTC in Beijing China on June 6th 2017.

19. Suggestions and Questions?
Thank you! 张玮
Wayne Zhang
Mobile & WeChat:
MLS Systems (Pty) Ltd
PaveTesting Ltd:
TIPTOP China Ltd:
卓致力天中国有限公司