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Asphalt concrete paving mixes

Asphalt concrete is properly proportioned to resist the potentially damaging effects in the road. Asphalt concrete paving mixtures should be evaluated for the following properties stability, flow, air voids, stripping resistance, resilient modulus, compacted density, and unit weight. Table 4.18 provides a list of standard laboratory tests that are presently used to evaluate the mix design or expected performance of fresh and hardened asphalt concrete. [Pg.181]

The Shell papents broadly cover a bituminous paving composition in which the aggregate is coated with bituminous binder and the excess undissolved sulfur acts as a filler in the void spaces between the aggregate. The process is particularly adaptable for use with inexpensive, ungraded sands which are not suitable for use as an aggregate in a conventional hot mix asphalt concrete this mix class has often been called sulfur-asphalt-sand (SAS), but Shell s product is currently tradenamed THERMOPAVE. [Pg.240]

J. L. Goodrich, "Asphalt and Polymer-Modified Asphalt Properties Related to the Performance of Asphalt Concrete Mixes," Msphalt Paving... [Pg.21]

There are four major considerations in designing a sulfur-asphalt pavement—mix design, construction, performance, and economics. None of these are unique to sulfur-asphalt, but they must all be considered explicitly in order to show under which conditions the new sulfur-asphalt paving material may be expected to be superior to the widely used and accepted asphalt concrete pavement. [Pg.199]

A sharp increase in price and decrease in availability of sulfur reduced the experimental effort temporarily, but laboratory work based on the above findings continued. Pourable paving mixes were developed containing one-sized sands which could be cast in place without rolling, much as portland cement concrete is handled. Based on satisfactory laboratory findings, a test road was constructed in Richmond, British Columbia in 1970, where a sand—asphalt—sulfur mix was cast between forms (5). The success of this trial, coupled with a decrease in the price of sulfur and the forecast for a long-term world sulfur surplus, led us to initiate an extensive research and development program to exploit sand-asphalt-sulfur mixes as road base and surface materials. [Pg.94]

Anderson DA (1987) Guidelines for the use of dust in hot mix asphalt concrete mixtures. Proc Assoc of Asphalt Paving Technologists 56 492-516... [Pg.166]

Finn F.N., C.L. Monismith, and N.J. Markevich. 1983. Pavement performance and asphalt concrete mix design. Proceedings of the Association of Asphalt Paving technologists, Vol. 52, p. 121. [Pg.396]

Contractor would have to pour and finish 6000 sq. ft. of concrete. Ready-mix company would have to deliver 40 truckloads of concrete. Paving contractor must lay 1800 ft. of a two-lane asphalt road. [Pg.120]

The studies illustrate that the two sulfur-asphalt systems are complementary. The primary objective for using the sulfur-extended binder system is to use sulfur as a diluent to conserve asphalt used in conventional hot mixes. No asphalt saving is realized using Thermopave. The unique features of this process are that it permits the manufacture of high-quality paving materials using inexpensive, poorly graded sands and yields pourable mixes, similar to cement concrete. [Pg.194]

Petroleum asphalt is used extensively as a binder in concrete road paving, hence road asphalt. Mixed with asphalt, coal tar pitch makes exceptional road surfaces that resist oils, are non-skid, adhere excellently to stone, and provide weathered hard surfaces. Cutback asphalt is asphalt dissolved in and made less viscous by a solvent (usually a petroleum distillate) allowing easier application in road repair and waterproofing. Road oil is very fluid asphalt used as a dust suppressant. [Pg.32]


See other pages where Asphalt concrete paving mixes is mentioned: [Pg.1064]    [Pg.1079]    [Pg.15]    [Pg.372]    [Pg.19]    [Pg.180]    [Pg.15]    [Pg.19]    [Pg.43]    [Pg.113]    [Pg.114]    [Pg.166]    [Pg.179]    [Pg.181]    [Pg.372]    [Pg.93]    [Pg.93]    [Pg.136]    [Pg.19]    [Pg.113]    [Pg.122]    [Pg.128]    [Pg.133]    [Pg.563]    [Pg.189]    [Pg.46]   
See also in sourсe #XX -- [ Pg.129 ]




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