3 edition of Deterioration of asphaltic concrete surfaces containing steel slag found in the catalog.
Deterioration of asphaltic concrete surfaces containing steel slag
by Canadian Strategic Highway Research Program, Transportation Association of Canada in Ottawa
Written in English
|Statement||prepared for Canadian Strategic Highway Research Program (C-SHRP) ; prepared by Isaac Afrani, Alison Bradbury, Jerry Hajek.|
|Contributions||Bradbury, Alison., Hajek, Jaroslav J., 1943-, Canadian Strategic Highway Research Program., Ontario. Ministry of Transportation.|
|LC Classifications||TE192 .A37 1995|
|The Physical Object|
|Pagination||1 v. (various pagings) :|
The available literature on the utilization of slag as an aggregate with Trinidad and Tobago asphaltic materials for road construction is limited. This study investigated the influence of electric arc furnace steel slag (0–20% by weight of ¾ inch sized aggregates) using the Marshall stability of blends to determine the optimal slag content. Steel slag is mainly composed of environmentally benign oxides like calcium, silicon and iron, but it may also contain low concentrations of potentially toxic elements, including chromium, nickel and vanadium. Additionally, the high pH levels of leachate from steel slag (pH>12) exceeds a maximum pH of in water discharges as allowed by the.
Asphalt concrete (commonly called asphalt, blacktop, or pavement in North America, and tarmac, bitumen macadam, or rolled asphalt in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface roads, parking lots, airports, and the core of embankment dams. Asphalt mixtures have been used in pavement construction since the beginning of the twentieth century. Micro-surfacing (MS), made of emulsified asphalt, is the most commonly used preventive maintenance technology in asphalt pavement. However, the studies on profile features of MS based on aggregate morphology are few. This study evaluated the profile features of MS and its effect on skid resistance. The aggregate morphologies were first characterized and modified emulsified asphalt was prepared.
Steelmaking Slag - an overview ScienceDirect Topics Copper Slag - an overview ScienceDirect Topics Steel Slag Aggregate 查看更多结果 Slag - Wikipedia Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw is usually a mixture of metal oxides and silicon dioxide. Steel slag is a coproduct of the steel industry and features high hardness compared to conventional crushed aggregate, such as granite and limestone. This study evaluated the performance of hot-mix asphalt (HMA) that contains steel slag aggregate (SSA) as a surface material to mitigate studded tire wear.
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The asphalt concrete samples containing steel slag coarse aggregate yield higher values of MQ than that of the control mixtures as indicated in Table 5.
It is well recognized that the MQ is a measure of the resistance of material to shear stresses, permanent by: STEEL SLAG User Guideline. Asphalt Concrete. INTRODUCTION. Steel slag can be processed into a coarse or fine aggregate material for use in dense- and open-graded hot mix asphalt concrete pavements (1,2,3), and in cold mix or surface treatment applications.
(4) Proper processing of steel slag and special quality-control procedures are extremely important in selecting steel slag for use in. George C. Wang, in The Utilization of Slag in Civil Infrastructure Construction, Reclaimed asphalt pavement containing slag aggregate.
Recent research found that some steel slag aggregates in RAP, with 92% steel slag aggregates, showed considerably high expansion potential, up to % swell.
The overall RAP gave maximum expansion amounts of % and %, respectively, which. The asphalt concrete mixes containing steel slag have been used on major highways in Ontario since the late s. In their use was discontinued because of premature pavement deterioration.
The purpose of the model was to facilitate timely scheduling of effective rehabilitation treatments for projects containing steel slag by: 4. This report describes an application of the C-SHRP Bayesian statistical analysis methodology for the development of a pavement deterioration model for asphaltic concrete surfaces containing steel slag aggregates.
The asphaltic concrete mixes containing steel slag have been used in Ontario on major highways since the late ': A Bradbury, J J Hajek, T J Kazmierowski. Re-use of steel slag as an aggregate to asphaltic road pavement surface Chris Maharaj1*, Daniel White2, Rean Maharaj3 and Cheryon Morin1 Abstract: Electric arc Furnace steel slag produced from the ferrous smelting process in the manufacture of steel in Trinidad and Tobago presents disposal and environ-mental challenges.
Corrosion of reinforcing steel and other embedded metals is the leading cause of deterioration in concrete. When steel corrodes, the resulting rust occupies a greater volume than the steel. This expansion creates tensile stresses in the concrete, which can eventually cause cracking, delamination, and spalling (Figs.
1 and 2). An ideal aggregate for base, binder and surface course asphalt products, the inherent properties in steel slag are assessed in accordance with the requirements of the European standard EN and can produce asphalt materials exhibiting superior properties to those manufactured with primary aggregate.
Corrosion of reinforcing steel and other embedded metals is the leading cause of deterioration in concrete. When steel corrodes, the resulting rust occupies a greater volume than the steel. This expan-sion creates tensile stresses in the concrete, which can eventually cause cracking, delamination, and spalling (Figs.
1 and 2). This test method covers several ground penetrating radar (GPR) evaluation procedures that can be used to evaluate the condition of concrete bridge decks overlaid with asphaltic concrete wearing surfaces.
These procedures can also be used for bridge decks overlaid with portland cement concrete and for bridge decks without an overlay.
Specifically, this test method predicts the presence or. Ratios of 0%, 15%, 30%, 50% and % are ing on the grade of concrete, the compressive strength is improved when steel slag is used for low sand replacement ratios (up to 30%).When. Asphalt paving - Steel slag has evolved as an ideal aggregate in hot mix asphalt (HMA) surface mixture applications.
Steel slag increases longevity, improves horizontal shear resistance and enhances friction. Where friction is an important safety consideration in pavement design for the motoring public, properties of steel slag qualify it as a.
Concrete with Steel Furnace Slag and Fractionated Reclaimed Asphalt Pavement Prepared By aggregates have been used as a high quality frictional aggregate for hot-mix asphalt (HMA) surface courses. The resultant fractionated reclaimed containing steel furnace slag (SFS) aggregates.
Because it is an industrial by-product, SFS. Asphalt Pavements contains the proceedings of the International Conference on Asphalt Pavements (Raleigh, North Carolina, USA, June ), and discusses recent advances in theory and practice in asphalt materials and pavements.
The contributions cover a wide range of topics: Environmental protection and socio-economic impacts - Additives and modifiers for asphalt concrete. Steel Slag - Asphalt Concrete INTRODUCTION Steel slag can be processed into a coarse or fine aggregate material for use in dense- and open-graded hot mix asphalt concrete pavements, (1,2,3) and in cold mix or surface treatment applications.
(4) Proper processing of steel slag and special quality-control procedures are extremely important in selecting steel slag for use in asphalt paving mixes. Steel Slag End Uses Steel Slag Hot Mix Asphalt Aggregate Provides a Sustainable Pavement Designed for strength and durability, the Indianapolis Motor Speedway in Indianapolis, IN used steel slag coarse aggregate SMA pavement for its new surface in Like DOT’s and many other users, they chose steel slag because of its long life, tenacity and.
Deterioration – the effects of materials and construction Introduction This section is the result of investigation into several examples of heavy-duty asphalt pavements, containing low penetration (stiff) binders (35 pen or lower), which have shown early.
(1) Steel slag contains significant quantities of iron; its highly compressed void structure results in a very dense, hard material.
Inmillion t ( million T) of steel slag was sold in the United States at a total value of $ million. (1) (The average selling price for steel slag at the plant was $ per metric ton.).
characteristics gives steel slag a strong advantage in asphalt concrete application as it enhances adhesion and reduces binder stripping, the leading cause to many pav ement failures. In addition.
Additionally, steel furnace slag has been used as a raw ingredient in Portland cement manufacture, fill, and soil amendment to name but a few applications.
Its primary use is as premium asphalt. Provide fine aggregate for asphalt concrete base consisting of natural sand or sand manufactured from stone, gravel, or ACBFS. Crushed Steel Slag (OH, EAF or BOF) conforming to E and may be used for coarse and fine aggregate in asphalt concrete base used in .Since a considerable amount of steel slag is produced in the southwestern part of Pennsylvania around Pittsburgh, where natural fine aggregate sources are limited, an evaluation was undertaken to determine the feasibility of using “cured” steel slag fine aggregate in hot-mix asphalt (HMA) mixtures.Asphalt concrete can be produced and the pavement constructed readily in Oregon when crushed steel slag is used as a portion of the aggregate.
If the unit cost of steel slag modified mixes is the same as conventional dense graded mixes, overall project costs may increase because of the decrease in coverage by the heavier steel slag mix.