(v. t.) To cover with asphalt; as, to asphalt a roof; asphalted streets.
Example Sentences:
(1) Hydrogen sulfide poisoning from inhalation of roofing asphalt fumes is a rare but devastating injury.
(2) When it is not clogged with weekend traffic, Container – the English word is used in Arabic – is a desolate spot: a lonely stretch of asphalt, four dingy tollbooth-like structures painted white and green, a few bored Israeli soldiers with automatic rifles.
(3) It was established that the corneal sensitivity--especially in its central region--was distinctly lowered in persons employed in the department of asphalt oxidation and cleaning of sewages.
(4) Significantly increased risks emerged for employment in the chemical, petrochemical and plastics industries (RR = 4.0; 95% CI: 1.6-9.8), and for exposure to coal and coke (RR = 4.0; 95% CI: 1.2-13.6), asphalt and tar (RR = 5.5; 95% CI: 1.6-19.6).
(5) When tested on tracks laid by bicycling on grass or asphalt, the choice of direction was not significantly different from random, even though the dogs were always rewarded when making correct choices.
(6) From above, the New York of South America resembles an endless asphalt forest of apartment buildings and freeways, with precious little green.
(7) The region’s politicians are talking about a new airport, asphalt roads, international hotels.
(8) At the Asphalt Paving Services warehouse, down the road from St Paul’s, the lawn is immaculately, precisely cut.
(9) Moreover, A, B, C heavy oils, asphalt, soy sauce and sauce, which apparently resembled lubricants when they adhered to victims, were analysed with this method.
(10) Two cases of toxic inhalation involving exposure to several gases, including hydrogen sulfide, evolved from cooling asphalt, are presented.
(11) From there it was on to Kentucky, which had a 14% poor roads rating and many well-tended arcs of asphalt swooping through lush, wooded hill country.
(12) Boris Nemtsov’s dead body was still lying on the icy asphalt when Vladimir Putin’s spokesman announced that the president believed the murder to be a “provocation”.
(13) Comparison of these data with analyses of the three asphalts indicates that the organisms probably attack the resin components of the asphalts.
(14) Epidemiological data for man accumulated since the IARC report do not fulfil the criteria for showing a causal association between exposure to asphalt and development of cancer.
(15) Samples were obtained during removal of an old coal-tar pitch roof and application of a new asphalt roof.
(16) Automobile exhaust, asphalt, gasoline fuel, diesel fuel, tyre particles, automobile crankcase oils, and atmospheric fallout were also analysed.
(17) The stones were composed of granular calcium bilirubinate and of asphalt-like products derived from abnormal bilirubin degradation.
(18) A similar susceptibility pattern for M. ranae was obtained on the same asphalts, but apparently this organism exerted even a greater effect on asphalt 6A since the viscosity of this residue was too hard to be determined satisfactorily.
(19) Three days later, a judge said she would be charged with mass unrest and harming a representative of the state, arguing that she had hurled rocks, bottles and pieces of asphalt at riot police.
(20) Components of asphalt fumes may have been important to the observed association between risk of cancer and employment in the asphalt industry.
Bitumen
Definition:
(n.) Mineral pitch; a black, tarry substance, burning with a bright flame; Jew's pitch. It occurs as an abundant natural product in many places, as on the shores of the Dead and Caspian Seas. It is used in cements, in the construction of pavements, etc. See Asphalt.
(n.) By extension, any one of the natural hydrocarbons, including the hard, solid, brittle varieties called asphalt, the semisolid maltha and mineral tars, the oily petroleums, and even the light, volatile naphthas.
Example Sentences:
(1) Tar bitumens are classifiable as the pyrolysis products of organic materials and are applied hot.
(2) The tests of bitumen, chlorcaoutchouc, asbestos cement and polyacryl delivered results comparable to those achieved under working conditions.
(3) Did these donations have anything to do with the investigation found, Clinton’s State Department approving the Alberta Clipper , a controversial pipeline carrying large amounts of tar-sands bitumen from Alberta to Wisconsin?
(4) There is also oil company interest in shale deposits at 10 locations in Morocco, two in Egypt as well as a "bitumen belt" in Nigeria which is already suffering major environmental damage from oil spills in the delta and the flaring of excess gas.
(5) But the huge amounts of water and solvents needed to extract oil from bitumen dramatically boost greenhouse gas output and, on latest production forecasts, will increase Canada’s CO2 emissions by 56 megatonnes by 2020 .
(6) The primary task is to ascertain whether tar bitumen can be replaced as a binder in paving for roads and what safety measures are practicable.
(7) Even plastics and bitumen which were used in the sphere of drinking water showed after an exposure time of three months up to 192 ml slime per square meter.
(8) The acute toxicity of three materials derived from Athabasca Oil Sands--(1) bitumen plus naphtha, (2) untreated naphtha (0-250 degrees C) and (3) synthetic crude oil (0-500 degrees C)--was assessed in a battery of tests.
(9) The relation of carbohydrate and protein content significantly changed from 2 at the beginning to 30 after 12 months of incubation the bitumen coating test plates.
(10) Since the bitumen-derived streams do not differ substantially in carcinogenic potency from petroleum-derived materials of comparable boiling range and process history, industrial hygiene practices which limit exposures to levels comparable to those observed in the petroleum-refining industry should provide similar measures of protection.
(11) Biological monitoring of exposure to bitumen fumes during road-paving operations was carried out.
(12) The exposure of sixteen road workers to bitumen fumes was studied.
(13) Time-weighted average values of bitumen fumes were determined by personal samplers.
(14) Mineral water and bitumen fraction induced an increase of the enzyme activity by 23, 20 and 45%, respectively.
(15) Bitumen plus naphtha administered at a concentration of 1.46 mg l-1 did not cause mortality in exposed rats or mice.
(16) A 2010 analysis by Accufacts Inc., an energy consulting firm that focuses on pipelines, identified Koch's Corpus Christi plant as one of 22 Gulf Coast refineries—out of more than 50—that is now capable of refining "a significant volume of blended bitumen," the type of crude that would flow through the Keystone XL.
(17) The village's fishing creek is contaminated; the school has been looted; the mangrove forests are coated in bitumen and everyone has left, refugees from a place blighted by the exploitation of the region's most valuable asset: crude oil.
(18) If the oil finds its way into those waters, the heavy tar sands bitumen will create a submerged disaster requiring a cleanup effort far above and beyond conventional responses.
(19) The carcinogenic potential of Athabasca tar sands and six experimental liquids derived from crude bitumen was evaluated utilizing the mouse epidermal carcinogenesis model.
(20) In the laboratory technique they have been using the American PIN-DEX system of pull-out necks, modelling of buttress construction without relief and together with the construction, in addition to ceramic facet making to chemical facet-making by means of composite bitumen made by KULZER, trade mark DENTACOLOR XS, which polymerize in Ultraviolet light.