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National Asphalt Pavement Association (NAPA)

The National Asphalt Pavement Association is the only trade association that exclusively represents the interests of the asphalt pavement material producer and paving contractor on the national level with Congress, government agencies, and other national trade and business organizations. NAPA supports an active research program designed to answer questions about environmental issues and to improve the quality of asphalt pavements and paving techniques used in the construction of roads, streets, highways, parking lots, airports, and environmental and recreational facilities.

The Association of Modified Asphalt Producers (AMAP)

The Association of Modified Asphalt Producers is dedicated to the development, production, and use of modified asphalts. The Association promotes technical research, education, production, and planning assistance. The Association welcomes members from research organizations, polymer production companies, asphalt production companies, contractors, and governmental agencies.

Association of Equipment Manufacturers (AEM)

AEM is a trade association that provides services on a global basis for companies that manufacture equipment, products and services used worldwide in the following industries: Agriculture, Construction, Forestry, Mining and Utility. AEM's membership is made up of more than 850 companies and represents 200+ product lines.

The Associated General Contractors of America (AGC)

The Associated General Contractors of America (AGC) is the leading association for the construction industry. Operating in partnership with its nationwide network of 95 chartered Chapters, AGC provides a full range of services satisfying the needs and concerns of its members, thereby improving the quality of construction and protecting the public interest.

Southeastern Asphalt User/Producer Group (SEAUPG)

SEAUPG is a volunteer organization of professionals and experts from various facets of the asphalt paving HMA industry working to promote better performing asphalt pavements and asphalt paving technology exchange, often in cooperation with other organizations sharing mutual interest.

Texas Asphalt Pavement Association (TXAPA)

TXAPA and its members have a long history of serving the state, cities, counties, businesses and people of Texas. This proud legacy has service at its core in providing technician guidance to engineers concerning the design of asphalt mixtures, the design of pavement structures, construction, specifications, applications of asphalt pavements and how to manage, maintain and rehabilitate pavements.

California Asphalt Pavement Association (CALAPA)

The California Asphalt Pavement Association (CalAPA) represents the asphalt paving industry in California. Member companies include asphalt producers, asphalt refiners, paving contractors, testing labs, consulting engineers and product suppliers.

The Rubber Pavements Association (RPA)

The Rubber Pavements Association is dedicated to the promotion of greater usage of high quality, cost effective asphalt pavements containing recycled scrap tire rubber. RPA is based in the state of Arizona in the United States because the most widely used and nationally accepted material containing recycled scrap tires, Asphalt-Rubber, was Arizona also has Asphalt-Rubber pavements that have been in service for many years.



bitumen homogenizers are designed for the production of polymer modified bitumen. Due to their special design the processing of polymers in bitumen is very efficient, especially in the form of pellets. The machines have successfully been employed for many decades and are based on a three-stage rotor/stator tool. D&H Equipment now stocks a complete spare set for Supraton 449-5.03 and 549.5.03 bitumen high shear mills (including rotors and stators). This allows D&H to repair and rebuild the mills much faster to get them back into production. D&H machinists have been trained directly by Supraton’s German technicians.

BearCat Pumps

High-quality manufacturer specializing in rubberized and polymer modified asphalt pumps. All Pumps Include: heat-treated, pulse-dampening helical gears; full hot oil jacketing; dual, built-in, fully heated relief valves (pressure relieving in both directions); no leak driveshaft seal design; nitride treated shafts; multiple port configurations; flanged ports; and can be direct driven inline or belt and pulley. D&H Equipment has worked directly with Bearcat pumps for many years to maximize the synergy between our two systems for best handling the higher temperatures and viscosity of highly modified asphalts.

Granutech Saturn Systems

Granutech Saturn Systems, MAC Crushers & Balers and Saturn Shredders offer a diversified equipment line that can be easily integrated into a single processing facility. From shredders to granulators to auto crushers, our engineers continuously develop products that meet the needs of your industry and application.


For almost a decade now PaveTex Engineering and Testing, Inc. has maintained an ARML and TxDOT accredited and fully equipped state-of-the-art laboratory. For almost a decade now PaveTex Engineering and Testing, Inc. has maintained an ARML and TxDOT accredited and fully equipped state-of-the-art laboratory. PaveTex Engineering and Testing is a consulting engineering firm and is available to analyze and trouble shoot your construction project as well as perform forensic studies on the project that had less than desirable results.