Road Construction & Roofing Products

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Asphalt Road Construction & Roofing Products


Asphalt Primary SIC Codes

1611 Road Construction Definition: General and special trade contractors primarily engaged in the construction of roads, streets, alleys, public sidewalks, guardrails, parkways, and airports

2952 Asphalt Roofing Materials

Definition: Establishments primarily engaged in manufacturing, from purchased materials, asphalt and other saturated felts in roll or shingle form, either smooth or faced with grit, and in manufacturing roofing cements and coatings


Road Construction


Market Size

Asphalt Roads Are: • Smooth • Cost-effective to construct and maintain • Exceptionally durable • Environmentally friendly • 100 % recyclable

More than 94% of the United States’ 2 million miles of streets and highways are paved with asphalt


Hot Mix Asphalt (HMA)

Aggregate • Crushed stone, gravel, and sand • Almost always locally available stone • About 95 percent of the total weight of an asphalt pavement consists of

aggregates

Asphalt Cement • The remaining five percent of asphalt pavement • Black liquid that acts as the glue to hold the pavement together • A petroleum product generally obtained from the same refineries that produce

gasoline and heating oil • Asphalt Cement is one of the heaviest, most viscous parts of petroleum


Hot Mix Asphalt Plants


Asphalt Emulsion

Combination of three basic ingredients 1. Asphalt 2. Water 3. Emulsifying agent

• Ingredients are introduced into a colloid mill • The emulsifier keeps the asphalt droplets in a stable suspension • Liquid product has a consistency ranging from that of milk to

heavy cream • Can be used in cold processes for road construction and

maintenance


Asphalt Emulsion • Does not require a petroleum solvent

to make it liquid • In most cases, can be used without

additional heat • Additionally, asphalt emulsions offer

great flexibility in their application • Asphalt emulsions are environmentally

friendly

Both of these factors contribute to energy savings

There are little or no hydrocarbon emissions created with their use


Road Construction Players


Roofing Materials


Market Information

Size • Over 12.5 billion square feet produced annually • 5 million homes roofed each year • Four out of five homes are roofed with asphalt shingles Application Liquids • Asphalt • Heat Transfer Oil


Shingles Mats Organic-based • Manufactured with a base (also termed mat or

substrate) made of various cellulose fibers such as recycled waste paper and wood fibers

• Organic base is then saturated with a specially formulated asphalt coating and surfaced with weather-resistant mineral granules

Fiberglass-based • Manufactured with a mat composed entirely of glass

fibers of varying lengths and orientations • Fiberglass base is then surfaced with a specially-

formulated asphalt coating, followed by weather-resistant mineral granules


Shingle Types Strip Shingles • Approximately three times as long as wide. • The most common type is the "three-tab" shingle Laminated Shingles • Contain more than one layer of tabs to create extra thickness • Referred to as “three-dimensional” or “architectural” • Favorite among builders, roofing contractors and homebuyers Interlocking Shingles • Individual shingles that are mechanically fasten to each other • Used to provide greater wind resistance Large Format Shingles • Generally rectangular or hexagonal in shape and do not utilize cutouts


Roll Roofing

Saturated Felt • Asphalt-impregnated, organic-based felt • Used as an underlayment between the roof deck and the roofing material • Produced in a variety of weights Specialty-Eaves Flashings • Self-adhering, polymer-modified bituminous sheet material • Designed for special flashing applications along roof eaves and in other areas Mineral-Surfaced Roll Roofing • The top surface of the roll is

imbedded with mineral granules • Used alone as a primary roof

covering, most frequently on small or secondary-use buildings


Roofing Players

http://www.ridglass.com/index.cfm


Frequently Used Pumps

• The Asphalt Pump series are economical General Purpose pumps utilizing a "floating" rotor design

• The jacketed head and rotor bearing sleeve are designed to allow passage of saturated steam or heat transfer fluid to melt asphalt that has solidified in the pump prior to startup

Viking 34 Series - “Asphalt Pump”

Photo Source: vikingpump.com


Viking 34 Series in Asphalt Service


Challenges

Housekeeping and Product Loss (waste) • Creating more interest in sealed pumps • Packed pump users are wanting more control over leakage

Cold Starts • Causing failure of packing, mechanical seals, and potentially

rotor damage


Best Opportunities

Asphalt Service • Through GG250 where jacketed brackets and covers are available • Upgraded packing and seal solutions for specific requirements

Filled Asphalt Service • HD with hardened parts • GG with hardened parts • Slow operating speeds • Upgraded packing and seal solutions


The GlobalGear® Answer

Shaft Size • Properly sized shafts will better handle high discharge

pressures and spikes without excessive deflection

Seal Vent to Suction • Seal vent to suction will help to prevent product build-up in

front of the seal • Seal vent to suction reduces shock of discharge pressure spikes

GlobalGear® is ideally built for Mechanical Shaft Seals!!


Learn More About Tuthill

Visit Our Websites www.tuthillpump.com www.tuthill.com

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Follow Us on Twitter @TuthillCorp


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Date post:	22-Dec-2021
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