How it works and why it matters The first decade of the 2000s marked a pivotal moment in pavement engineering with the introduction of the Next Generation Concrete Surface (NGCS) . Developed through a robust collaboration between the IGGA, A merican Concrete Pavement Association, Portland Cement Association, Purdue University and the  Minnesota DOT,  this innovation was engineered specifically to address tire-pavement noise. Unlike traditional surfaces that rely on random tex

IGGA Announces New Member, Ecobeton-USA We are excited to announce that Ecobeton-USA has joined the IGGA family as our newest member!   Ecobeton-USA, founded in 1993, is a technology company providing systems and solutions for the construction industry, including treatments for concrete, plaster, brick, and wood. The company specializes in waterproofing solutions for concrete structures and cementitious overlays for repair and decorative applications . Ecobeton Vetrofluid is

High agency engineer turnover has resulted in a knowledge gap regarding current roadway repair techniques and tools. Continuing education is, therefore, essential to ensuring best practices are understood and applied to highway projects.  In 2026, the IGGA is traveling the U.S. to educate engineers on concrete pavement repair best practices and highway surface texture remediation. We have already hosted two successful sessions this year in Dallas/Ft. Worth and Colorado, and

A 2002 study titled " The Long-Term Performance of Unsealed Jointed Concrete Pavements " evaluated the efficacy of unsealed pavement joints against those maintained with high-quality sealant materials. The primary objective was to observe performance over extended periods rather than relying on short-term snapshots.   Today, these findings remain critical for contractors and agency specifiers. As the industry faces increasing pressure to maximize infrastructure lifecycles, un

From CSA as a game-changer to common misconceptions to future priorities and more The IGGA’s John Roberts and Nick Davis were busy at this year’s World of Concrete (WOC), from connecting with members and visitors at our booth to stopping by members' exhibits to hosting the IGGA reception and more. Somehow, they found the time to sit down for several interviews—sharing important insights into industry advancements, trends in pavement preservation and concrete infrastructure, t

A combination of diamond grinding and concrete pavement rehabilitation (CPR) can significantly extend a pavement's service life Maintaining aging infrastructure on high-traffic corridors is a critical challenge for transportation departments. The Minnesota Department of Transportation (MnDOT)  faced this issue on US Highway 12, a vital route with aging concrete pavement, drainage problems and outdated pedestrian accessibility features. To address this, MnDOT implemented a com

World of Concrete 2026 was an incredible week filled with connections, conversations, and industry collaboration! Our team was energized throughout the show—connecting with members and visitors at our booth, visiting member exhibits, and sharing the many benefits of being part of the IGGA. The week wrapped up with a fantastic IGGA reception, bringing everyone together for great conversations, networking, and celebration of our industry. Check out some of our favorite moments

Control deck grades to accommodate equipment and avoid joint damage Increasingly, owners are specifying diamond grinding to improve the ride quality, friction and drainage capabilities of new bridge deck surfaces. Historically, bridges have suffered from ride quality issues where adjoining bridge deck segments and approach slabs meet one another. To counter this issue, agencies are now specifying that the final riding surface be diamond ground.   Diamond grinding provides a m

Baytown, TX Project Delivers Superior Ride Quality In 2021, the City of Baytown, Texas, completed a landmark road preservation project on North Main Street, one of its busiest corridors. By adopting a Concrete Pavement Preservation (CPP) strategy, the city not only saved millions in reconstruction costs but also delivered a roadway with exceptional ride quality, setting a new standard for infrastructure renewal. This project serves as a compelling case study for how t

IGGA Announces New Member - Top-Off We are proud to announce that Top-Off has joined the IGGA family as our newest member!   Founded in 2011 by John Vastmans in Houthalen-Helchteren, Belgium, Top-Off NV has grown into Belgium’s market leader in road milling and surface treatment. Built on the belief that sustainable road maintenance begins with quality and skilled people, the company combines technical innovation with craftsmanship to deliver lasting infrastructure....

While technologies and methods evolve, the fundamental principles of roadway safety remain constant. A landmark 1972 California Department of Public Works report, "The Effect of Grooving On Motor Vehicle Accidents,"  provides foundational data that continues to inform our safety practices today. Its findings are as relevant now as they were decades ago, demonstrating the long-proven effectiveness of pavement grooving. The data gathered for this report is not from a small, hal

While Halloween may be over, there’s no reason for pavement issues to continue causing you unwanted scares. Unexpected deterioration and hidden pitfalls can haunt your projects long after the season has changed. Eliminate these frightening surprises by becoming part of a network committed to excellence in concrete pavement preservation.   As an IGGA member, you are equipped to overcome your most daunting project challenges.   Our organization offers a host of bewitching benef

This season, the only frightening things should be intentional. When it comes to your concrete pavements, unexpected failures and rapid deterioration can be truly horrifying. It is time to cast out the specter of distressed infrastructure with proven preservation techniques.  Don't let aging pavements haunt you. The IGGA is the leading technical resource for the tools that solve the most daunting road challenges. These methods provide tangible treats: safer, smoother, longer

The City of Minneapolis is setting a new standard for sustainable urban infrastructure renewal through its comprehensive Concrete Pavement Preservation (CPP) strategy. Facing the challenges of harsh freeze-thaw cycles and heavy urban traffic, the city's approach provides a valuable model for extending the life of concrete streets.  Since its launch in 2016, the program has demonstrated significant success in rehabilitating its aging concrete street network. By expanding on i

A durable, sustainable alternative to traditional asphalt overlays A recent peer-reviewed paper by George Vorobieff, a leading subject matter expert on concrete pavements, presents a compelling case for using conventional diamond grinding (CDG) of concrete bridge decks as a primary alternative to waterproofing, challenging the long-standing practice of applying a membrane and asphalt overlay. The paper, " To waterproof bridge decks or not ," details how CDG offers a high-perf

Across the country, departments of transportation are employing diamond grinding to enhance pavement performance and often take a targeted approach to smooth out uneven spots in a pavement in an effort to minimize costs. This practice, called bump grinding, is designed to address only troublesome locations and thereby conserve resources while meeting smoothness requirements. While bump grinding may appear to conserve resources, in some situations this selective approach can r

South Korea's Tunnel Innovation: The NGCS Revolution South Korea's mountainous terrain and dense urban areas have driven the nation to...

Australia’s Tunnel Revolution: A New Era in Pavement Preservation Exploring how diamond grinding and CRCP are transforming tunnel...

Keeping Communities Connected and Commerce Flowing  From Virginia to Florida, America’s tunnels are vital links in our transportation...