Software Programs

Programs for Interlocking Concrete Pavements

Structural Design of Interlocking Concrete Pavements

This program enables users to design bases for interlocking concrete pavements. Users can design aggregate, cement or asphalt stabilized, or asphalt bases. The program uses the flexible pavement design methodology in the 1993 AASHTO Guide for Design of Pavement Structures. The user provides soil subgrade and drainage information, anticipated traffic loads as 18,000 lb (80 kN) axle loads up to 10 million, and the base material type. The program outputs base and subbase thicknesses. The user can change default values in the program. Program use must be accompanied by reading ICPI Tech Spec 4 Structural Design of Interlocking Concrete Pavements free on this website and/or purchase ASCE 58-10 Structural Design of Interlocking Concrete Pavement for Municipal Streets and Roadways. The program runs using metric or traditional U.S. units. Click here to download the free program in traditional U.S. customary units and here for metric units. Developed by Applied Research Associates.

Life Cycle Cost Analysis Program

The user can enter construction, maintenance costs and end-of-life costs for interlocking concrete pavement, asphalt and concrete pavements, as well as a discount rate to have the program calculate the life-cycle costs these pavements. The software allows deterministic or probabilistic analyses of costs and outputs results in tabular and bar graph forms. Default values are provided for initial costs, maintenance costs and intervals which can be easily edited by the user to project-specific conditions. The program can be operated using metric or traditional U.S. units. Click here to download the free program. Developed by Applied Research Associates.

Pavement Condition Index Calculator

Management of pavements involves periodic condition inspection translating distresses and severities into pavement condition ratings. This data can be used to develop a pavement condition index (PCI) from 0 to 100 that helps forecast when pavements might need maintenance. Condition surveys and development of PCIs for interlocking concrete pavements rely on ASTM E2840 Standard Practice for Pavement Condition Index Surveys for Interlocking Concrete Roads and Parking Lots. This software program provides a data collection sheet that automatically calculates the PCI for streets. This data can be input into pavement management systems. Click here to download the free program. Developed by Applied Research Associates.

Programs for Permeable Interlocking Concrete Pavements

Permeable Pavement Project Evaluation Tool

This program provides a ranking system that rationalizes the site feasibility and selection for permeable pavement. The user answers questions that generate a score up to six prospective sites amenable, marginal or unacceptable as places for permeable pavement. Click here to download the free program. Developed by Applied Research Associates, Inc.

Permeable Interlocking Concrete Pavement Structural Design

OpenPave is a mechanistic pavement design model developed by the University of California Pavement Research Center (UCPRC) and used by road agencies for structural design. It is an n-layer, n-load, n-point multi-layer elastic half space calculation written in C++. Users should first visit and download the program for 64-bit PCs from the link on the home page. Then click here to download the Excel sheet specifically developed for permeable interlocking concrete pavement structural design validated by full-scale structural load test by UCPRC. When this program is opened and OpenPave is on a computer, the program automatically starts OpenPave. For more documentation on UCPRC full-scale PICP load testing and modeling inputs, click here to read the report.

ASTM C1781 Surface Infiltration Rate Calculator

This sheet provides input values for the formula in ASTM C1781 Standard Test Method for Surface Infiltration Rate of Permeable Unit Pavement Systems that calculates that rate in inches per hour. The sheet provides inputs for 8 lbs (5 kg) of water for the wetting step and 40 lbs (18 kg) for the testing step, thereby providing instant answers. Click here to download.