Essential articles

Latest subject

  • An Introduction to Asphalt Emulsions | Asphalt magazine

    An Introduction to Asphalt Emulsions | Asphalt magazine

    The properties of the asphalt cement do affect the performance of the residual asphalt on the road. Water is the second ingredient in an asphalt emulsion. Minerals or other materials in water can affect the production of stable emulsions. Water that is suitable for drinking may not be suitable for asphalt .

    Get Price Online
  • Maximum Aggregate Size & Nominal Maximum Aggregate Size

    Maximum Aggregate Size & Nominal Maximum Aggregate Size

    Jan 24, 2013 · By this definition the nominal maximum aggregate size for the material example above is also 1/2". However, if there were only 91% passing the 3/8" the nominal maximum aggregate size for that material would be 3/8", not 1/2". Neither of these are the same definition as outlined in the Asphalt Institute's MS-2 guide for Mix Design Methods.

    Get Price Online
  • Road Science for the Asphalt Paving Industry | ArrMaz

    Road Science for the Asphalt Paving Industry | ArrMaz

    Road Science for the Asphalt Paving Industry. Quality roads are important to every economy. They are key to any dependable transportation infrastructure which must facilitate the efficient and cost-effective flow of goods and services between manufacturers and consumers.

    Get Price Online
  • What is Asphalt Oxidative Aging | IGI Global

    What is Asphalt Oxidative Aging | IGI Global

    What is Asphalt Oxidative Aging? Definition of Asphalt Oxidative Aging: Asphalt oxidative aging is an inevitable oxidation process when asphalt is exposed to the atmospheric oxygen, since asphalt is a natural organic end product of ancient living organisms which is subject to chemical oxidation. Oxidative aging causes hardening of asphalt which leads to embrittlement of asphalt pavement.

    Get Price Online
  • synthetic - Dictionary Definition : Vocabulary

    synthetic - Dictionary Definition : Vocabulary

    Something made of artificial material, not natural items, can be described as synthetic. Some football stadiums have synthetic grass, and a leisure suit from the 1970s might be made of synthetic fabric.

    Get Price Online
  • Asphalt Paving Operation - Purdue Engineering

    Asphalt Paving Operation - Purdue Engineering

    The Sumerians used asphalt in 6000 B.C. for its shipbuilding industry. Today, asphalt is applied to roofing, sealants, caulking, brake linings, paints, enamels, and most widely used in the paving industry (Asphalt - Science and Technology, 1968). Process Description. Batch Plant Production

    Get Price Online
  • What is Soil Erosion? - Definition and Causes - Video .

    What is Soil Erosion? - Definition and Causes - Video .

    What is Soil Erosion? - Definition and Causes. . "As a math/science tutor I find these lessons extremely helpful when introducing concepts to my students or reinforcing what they have been taught."

    Get Price Online
  • asphalt noun - Definition, pictures, pronunciation and .

    asphalt noun - Definition, pictures, pronunciation and .

    Definition of asphalt noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. We use cookies to enhance your experience on our website, including to provide targeted advertising and track usage.

    Get Price Online
  • Type of Asphalt Roofing Shingles | CertainTeed

    Type of Asphalt Roofing Shingles | CertainTeed

    Asphalt roof shingles are the most popular roofing material used on homes across North America, and with good reason. They are designed to protect a home through decades of weathering with minimal upkeep, and are available in hundreds of colors and styles.

    Get Price Online
  • Asphalt - definition of asphalt by The Free Dictionary

    Asphalt - definition of asphalt by The Free Dictionary

    Define asphalt. asphalt synonyms, asphalt pronunciation, asphalt translation, English dictionary definition of asphalt. n. 1. See bitumen. 2. A mixture of bitumen with crushed stone gravel or sand, used for paving or roofing. tr.v. as·phalt·ed, as·phalt·ing, as·phalts To.

    Get Price Online
  • Reflection of light — Science Learning Hub

    Reflection of light — Science Learning Hub

    Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. This is .

    Get Price Online
  • ASPHALT meaning | Engineering Dictionary

    ASPHALT meaning | Engineering Dictionary

    ASPHALT according to the free Engineering Dictionary. A mineral insoluble in water and used extensively in building for waterproofing roof coverings

    Get Price Online
  • EDC-1: Warm Mix Asphalt | Federal Highway Administration

    EDC-1: Warm Mix Asphalt | Federal Highway Administration

    Warm Mix Asphalt (WMA) is the generic term for a variety of technologies that allow producers of Hot Mix Asphalt (HMA) pavement material to lower temperatures at which the material is mixed and placed on the road. It is a proven a technology that can: Reduce paving costs.

    Get Price Online
  • Construction and Building Materials - Journal - Elsevier

    Construction and Building Materials - Journal - Elsevier

    An international journal dedicated to the investigation and innovative use of materials in construction and repair.. Construction and Building Materials provides an international forum for the dissemination of innovative and original research and development in the field of construction and building materials and their application in new works and repair practice.

    Get Price Online
  • A Review of the Fundamentals of Asphalt Oxidation

    A Review of the Fundamentals of Asphalt Oxidation

    2 Transportation Research Circular E-C140: A Review of the Fundamentals of Asphalt Oxidation impart to asphalt its "polymeric" properties. However, unlike polymers, the molecules in the molecular agglomerates are bonded together, not by primary chemical bonds but by polar association forces such as hydrogen bonding and dipole interactions.

    Get Price Online
  • An Introduction to Asphalt Emulsions | Asphalt magazine

    An Introduction to Asphalt Emulsions | Asphalt magazine

    The properties of the asphalt cement do affect the performance of the residual asphalt on the road. Water is the second ingredient in an asphalt emulsion. Minerals or other materials in water can affect the production of stable emulsions. Water that is suitable for drinking may not be suitable for asphalt .

    Get Price Online
  • What does asphalt mean? - definitions

    What does asphalt mean? - definitions

    Definition of asphalt in the Definitions dictionary. Meaning of asphalt. What does asphalt mean? Information and translations of asphalt in the most comprehensive dictionary .

    Get Price Online
  • Land pollution | Britannica

    Land pollution | Britannica

    Land pollution, the deposition of solid or liquid waste materials on land or underground in a manner that can contaminate the soil and groundwater, threaten public health, and cause unsightly conditions and nuisances. The waste materials that cause land pollution are broadly classified as municipal

    Get Price Online
  • Introduction to the Science of Asphalt Binders – Adventus .

    Introduction to the Science of Asphalt Binders – Adventus .

    Jul 19, 2016 · By Brian J Majeska In the last blog I focused on the importance of continuing adult learning and how it relates to the success of product commercialization. Nowhere is this more evident to me than in the asphalt industry as our team develops a number of products with clients. I .

    Get Price Online
  • Heat Island Effect | US EPA

    Heat Island Effect | US EPA

    The term "heat island" describes built up areas that are hotter than nearby rural areas. The annual mean air temperature of a city with 1 million people or more can be 1.8–5.4°F (1–3°C) warmer than its surroundings. In the evening, the difference can be as high as 22°F (12°C). Heat islands .

    Get Price Online
  • Asphalt | Definition of Asphalt by Merriam-Webster

    Asphalt | Definition of Asphalt by Merriam-Webster

    Asphalt definition is - a dark bituminous substance that is found in natural beds and is also obtained as a residue in petroleum refining and that consists chiefly of hydrocarbons.

    Get Price Online
  • Definitions of asphalt - OneLook Dictionary Search

    Definitions of asphalt - OneLook Dictionary Search

    Quick definitions from WordNet (asphalt) noun: a dark bituminous substance found in natural beds and as residue from petroleum distillation; consists mainly of hydrocarbons noun: mixed asphalt and crushed gravel or sand; used especially for paving but also for roofing verb: cover with tar or asphalt ("Asphalt the driveway") Word origin

    Get Price Online
  • What is a Green Roof? | HowStuffWorks - Science

    What is a Green Roof? | HowStuffWorks - Science

    The layers of a green roof must, like any roof, accommodate drainage and protect the building from the elements with a waterproof membrane. But they also must create a growing area and potentially provide support, irrigation and root protection barriers while staying as light as possible. Two types of green roof exist: intensive and extensive. .

    Get Price Online
  • Inside Science | Reliable news for an expanding universe

    Inside Science | Reliable news for an expanding universe

    Reliable news for an expanding universe. Preventing losses of electricity as it travels from the source to where it's used could cut greenhouse gas emissions by half a billion metric tons a year.

    Get Price Online
  • prognosis - Dictionary Definition : Vocabulary

    prognosis - Dictionary Definition : Vocabulary

    If you come down with an illness, you might ask your doctor what your prognosis is. A prognosis is a prediction about the course of a disease.

    Get Price Online
  • Asphalt Binder - an overview | ScienceDirect Topics

    Asphalt Binder - an overview | ScienceDirect Topics

    James G. Speight PhD, DSC, in Asphalt Materials Science and Technology, 2016. 10.3.1 Asphalt Binders. The asphalt binder, sometimes referred to as the asphalt cement binder or the asphalt cement, is an essential component of asphalt concrete—it is as the name implies the cement that holds the aggregate together.The asphalt binder is a co-product of the petroleum-refining system that produces .

    Get Price Online
  • The Effect of Asphalt Pavement on Stormwater Contamination

    The Effect of Asphalt Pavement on Stormwater Contamination

    The Effect of Asphalt Pavement on Stormwater Contamination An Interactive Qualifying Project Report submitted to the Faculty of WORCESTER POLYTECHNIC INSTITUTE in partial fulfillment of the requirements for the Degree of Bachelor of Science by Andrew F. .

    Get Price Online
  • SHRP - Definition by AcronymFinder

    SHRP - Definition by AcronymFinder

    The World's most comprehensive professionally edited abbreviations and acronyms database All trademarks/service marks referenced on this site are properties of their respective owners.

    Get Price Online
  • Pavement Distress Summary - Asphalt Institute

    Pavement Distress Summary - Asphalt Institute

    New asphalt pavements with too little compaction during construction; Plastic fines in mix that does not have enough stability to support traffic. (high -200 material causing low air voids) Level pavements by filling with hot plant-mired asphalt materials. Follow with thin asphalt .

    Get Price Online
  • What is flash point? definition and meaning .

    What is flash point? definition and meaning .

    flash point: Temperature at and above which a liquid gives off enough flammable vapor to form a mixture with air that can be ignited by contact with a hot surface, spark, or flame. Lower the flash point, greater the fire hazard. Common test methods of determining flash point include Pensky-Marten Closed Tester (ASTM D93-79), Setaflash Closed .

    Get Price Online
  • Asphalt Roofing and the Science of Color - YouTube

    Asphalt Roofing and the Science of Color - YouTube

    Oct 28, 2013 · An asphalt shingle roof provides homeowners with years of protection from the elements as a result of its reliability, durability and longevity. Asphalt roofing offers unparalleled beauty and .

    Get Price Online
  • Asphalt Materials Science and Technology | ScienceDirect

    Asphalt Materials Science and Technology | ScienceDirect

    Abstract. The term asphalt is a term that had been maligned and used loosely to describe a variety of naturally occurring and manufactured substances. In fact, there have been many terms that have been used historically to describe asphalt or bitumen and while there have been valiant attempts to define bitumen and asphalt, confusion still exists because of the lack of understanding of the .

    Get Price Online
  • Bituminous | Definition of Bituminous by Merriam-Webster

    Bituminous | Definition of Bituminous by Merriam-Webster

    Bituminous definition is - containing or impregnated with bitumen. Recent Examples on the Web. This village named Bluefield was, in reality, surrounded by black bituminous coalfields. — Eric Berger, Ars Technica, "The Greatest Leap, part 6: After Apollo, NASA still searching for an encore," 21 July 2019 This village named Bluefield was, in reality, surrounded by black bituminous coalfields.

    Get Price Online
  • Asphalt | Definition of Asphalt at Dictionary

    Asphalt | Definition of Asphalt at Dictionary

    Nov 24, 2014 · Asphalt definition, any of various dark-colored, solid, bituminous substances, native in various areas of the earth and composed mainly of hydrocarbon mixtures. See more.

    Get Price Online
  • Asphalt : definition of Asphalt and synonyms of Asphalt .

    Asphalt : definition of Asphalt and synonyms of Asphalt .

    Asphalt emulsions contain up to 70% asphalt and typically less than 1.5% chemical additives. There are two main types of emulsions with different affinity for aggregates, cationic and anionic. Asphalt emulsions are used in a wide variety of applications.

    Get Price Online
  • P 2.17 WIND EFFECTS ON ASPHALT SHINGLES - Haag Global

    P 2.17 WIND EFFECTS ON ASPHALT SHINGLES - Haag Global

    P 2.17 WIND EFFECTS ON ASPHALT SHINGLES . Timothy P. Marshall*, Scott J. Morrison, Richard F. Herzog, Jeffrey R. Green . Haag Engineering Co. Irving, Texas . 1. INTRODUCTION . Asphalt shingles have been utilized as a roofing material for more than one hundred years. The first asphalt shingles were manufactured in 1901 but were

    Get Price Online
  • What are the different grades of asphalt? - Answers

    What are the different grades of asphalt? - Answers

    Well, the traditional superpave grade is on the order of PG ##-##, this means, for example. A grade of asphalt, say, PG 70-40 is a mix where the 70 stands for the asphalt temp max over the next .

    Get Price Online
  • What is Soil Erosion? - Definition and Causes - Video .

    What is Soil Erosion? - Definition and Causes - Video .

    What is Soil Erosion? - Definition and Causes. . "As a math/science tutor I find these lessons extremely helpful when introducing concepts to my students or reinforcing what they have been taught."

    Get Price Online
  • What is Final Asphalt? - Definition from Trenchlesspedia

    What is Final Asphalt? - Definition from Trenchlesspedia

    Definition - What does Final Asphalt mean? Final asphalt is the last stage of road paving that marks the end of the paving process. As the popularity of trenchless construction and rehabilitation techniques rises, the need to break asphalt roads has decreased considerably.

    Get Price Online
  • Bitumen - definition of bitumen by The Free Dictionary

    Bitumen - definition of bitumen by The Free Dictionary

    Define bitumen. bitumen synonyms, bitumen pronunciation, bitumen translation, English dictionary definition of bitumen. . (Elements & Compounds) any of various viscous or solid impure mixtures of hydrocarbons that occur naturally in asphalt, tar, mineral waxes, etc: used as a road surfacing and roofing material. 2.

    Get Price Online