Heavy Vehicle Simulator(HVS)- An Accelerated Pavement Testing Facility

Instrument Details

CSIR-Central Road Research Institute(CSIR-CRRI) has acquired and set-up a national major test facility.

Make

HVS Mk4+ from Dynatest Inc.(US)

Model

Specification

Feature

Capability

Mobility	Towable over long distances; self-propelled over short distances
Load Application	Static & Dynamic Load Applications
Wheel Loads	Mean Load : 36 - 88 kN ; Peak Load : 40 - 105.6 kN
Test Wheel (s)	Single, Super-single, Dual (truck) or Aircraft (Airbus 46´16)
Tyre Pressure	Typically 560-690 kPa on roads ; Upto 1450 kPa on airfields
Repetitions Per Day	Upto 32000 (Bi-directionally) ; Upto 16000 (Uni-directionally)
Trafficked Length	8m (test area length 6m)
Trafficked Width	Upto 1.5 m, depending on wheel configuration
Trafficking Pattern	Variable
Dimensions	Length = 22.8 m ; Width = 3.5 m ; Height = 4.0 m
Total Mass	47000 Kg
Power Source	Diesel (self contained) or electric shore power

Working Principles

APTF allows the controlled application of a prototype wheel loading, at or above the appropriate legal load limit to a prototype or actual, layered, structural pavement system to determine pavement response and performance under a controlled, accelerated accumulation of damage in a compressed time period. The information is highly beneficial in all aspects of pavement engineering. APT aims to evaluate pavement sections under a range of loading and environmental conditions to improve the knowledge of the potential performance of the pavement layers and structure under a full range of operational conditions. It is for this reason, the simulation is made for varying magnitudes of wheel loads, directional traffic and transverse shifts (wandering) and the pavement response are studied.

Applications

Advance information on pavement performance
Evaluation of New designs, specifications, mixes and materials
Studies for anticipated traffic conditions
Greater control over uniformity and quality of construction because of small size of test sections
Control over environmental factors such as pavement temperature and subgrade moisture
Simulated field conditions
Economical and ready to use technical solutions
Substantial savings with improvements in pavement design procedures and maintenance practices
Well targeted pavement research programme
Knowledge gained from APTF affects decision of road authorities
Determination of magnitude and timing of asset establishment and preservation costs

User Instructions

With the facility working on three major units(OCU,CCU and VCU) involving many specific sequences and operational algorithm, only a trained team will perform the usage and data acquisition for the client

Contact Details

CSIR-Central Road Research Institute,
Delhi-Mathura Road, New Delhi-110025
Phone: 011-26832173, 26832325
Website: http://www.crridom.gov.in
Email: director [dot] crri [at] nic [dot] in