Welcome to the Hawaii Asphalt Paving Industry

The Hawaii Asphalt Paving Industry (HAPI) represents asphalt pavement producers and laydown contractors in the State of Hawai'i as well as industries related to pavement preservation. Formed in 1989, HAPI's purpose is to provide engineering promotion and education to advance the continuing use of asphalt pavement and pavement treatments throughout the State of Hawai’i. Learn More


  • 2022 HAPI Holiday Card
    2022 HAPI Holiday Card
    HAPI Holidays! Wishing you and your families a wonderful and safe holiday season! Background information for each photo (top left,...
  • 2022 HAPI Photo Contest
    2022 HAPI Photo Contest
    The Annual HAPI photo contest for our members is over and the results are displayed below. Entries were photos of...
  • 2022 Use of Geosynthetics Workshops
    2022 Use of Geosynthetics Workshops
    HAPI members Tensar International and Corporation and Geotech Solutions, Inc. conducted a Use of Geosynthetics workshop on Oahu (10/18) and...

HAPI Asphalt Pavement Guide

The HAPI Asphalt Pavement Guide is an informational resource on asphalt pavements and pavement treatments. It contains a general overview of all aspects asphalt pavement and pavement treatments, and in-depth information on recommendations and practices for Hawai’i. It is intended to assist those who work with asphalt pavements and pavement treatments, including architects, engineers, contactors, students and homeowners.

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Upcoming Events

11:30 am HAPI Holiday Game @ Virtual
HAPI Holiday Game @ Virtual
Dec 12 @ 11:30 am – 12:30 pm
A quiz game using Kahoot. The topics of the questions will be asphalt industry, HAPI, and of course, the holiday season. Prizes will be award to the top five finishers – $25, $20, $15, $10, and $5 gift cards from a wide variety of stores.
11:30 am Introduction to Open-Graded Mixe... @ Zoom Presentation
Introduction to Open-Graded Mixe... @ Zoom Presentation
Dec 14 @ 11:30 am – 12:30 pm
Title: Intro to Open-Graded Mixes Speaker: Jon M. Young, Hawaii Asphalt Pavement Industry An Intro to Open-Graded Mixes will answer the following questions: – What are open graded mixes? – Differences from dense graded mixes? – Where have they been used in Hawaii? – Where could they be used[...]
11:30 am Improving Asphalt with True WMA ... @ Zoom Presentation
Improving Asphalt with True WMA ... @ Zoom Presentation
Jan 25 @ 11:30 am – 12:30 pm
Title: Improving Asphalt with True WMA Speaker: Bob Siffert, Business Development Manager, Evotherm, Ingevity This session will highlight the long-term pavement performance benefits that are achievable when asphalt is produced at true warm mix temperatures (below 275°F). By simply reducing production temperatures, industry can reduce emissions, use[...]

Facts & Videos

Contact Us

Hawaii Asphalt Paving Industry
1287 Kalani Street, Suite 202
Honolulu, HI 96817
Tel: 808.847.HAPI (4274)
Email: jon@hawaiiasphalt.org
Contact Form

Asphalt Pavement Guide

An interactive guide to everything about asphalt pavements and pavement treatments including local Hawai’i guidance, procedures and designs.
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