01863308

Monograph

https://www.trb.org/Main/Blurbs/182871.aspx

The purpose of this publication is to provide a reference document for usage of Balanced Mix Design (BMD) terminology in the United States. It is hoped that this publication will foster improved communications among those who are involved in the asphalt mixtures community. This publication is divided into four parts: Glossary of Asphalt Pavement Balanced Mix Design Terms, Glossary of Asphalt Balanced Mix Design Tests and Properties, Abbreviations and Symbols, and References. The major parts are the two Glossary sections. The first Glossary is divided into two subsections: the Overall Definition which describes BMD as a concept and the Key Terms which defines all the terms related to BMD. The terms selected for definition include many terms that frequently are misinterpreted, misunderstood, or generally confused. The definitions provided are often more than basic definitions as they attempt to clarify the impact of the term under BMD specifically. The Key Terms section is organized alphabetically so that finding terms can be accomplished easily. Also, several key figures are provided to illustrate important concepts and strengthen the understanding of relationships among terms. The second major section is the Glossary of Asphalt Balanced Mix Design Tests and Properties that provides a succinct description of the common mechanical tests used within a BMD system. This section is further divided by the type of distress the test is often used to correlate with and then tests are listed alphabetically. In this section, each test has a short description, the test method(s), and the parameter used for potential BMD criteria. The section is not intended to be exhaustive as only those tests that have a test method and are being used or proposed in agency specifications for BMD are included. In addition to the tests for BMD, there is a variety of mixture conditioning procedures to simulate aging of asphalt mixtures in the field. Although conditioning to simulate aging is critical for use alongside BMD cracking and durability tests, the different procedures are not listed and explained in this document. The concepts of conditioning and aging are described in the Glossary, but no specific procedures are detailed.

English

25p

2022-10

Transportation Research Circular

Digital/other

Figures; Glossary; References; Tables

Asphalt mixtures; Definitions; Glossaries; Mechanical tests; Mix design; Test procedures

Highways; Materials; Pavements

TRIS, TRB, ATRI

Nov 1 2022 1:25PM