Cold In Place Recycling Of Asphalt Pavement With Self Cementing Fly Ash PDF Download
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Author | : Sachin Patel |
Publisher | : |
Total Pages | : 118 |
Release | : 2006 |
Genre | : |
ISBN | : |
Download Cold In-place Recycling of Asphalt Pavement with Self-cementing Fly Ash Book in PDF, ePub and Kindle
Reclaimed asphalt base (RAB) can be used as granular base or sub-base material in all pavement types. For low traffic volume roads, RAB may be stabilized using self-cementing fly ash to produce high quality road base using cold in-place recycling methodology. A demonstration project was completed utilizing this technology. This thesis presents a compilation of the laboratory test results used to characterize the RAB produced in that demonstration project and fly ash-stabilized RAB physical and engineering properties. The construction procedures and quality control guidelines are also described. Also, the field performance of the stabilized road base is discussed based upon the field CBR tests. Finally, Modulus of resilient for road base was found out by using Falling weight deflectometer (FWD) test and the resulting deflection bowls were analyzed using backcalculation program called Modulus 6.0 developed by Texas Transportation Institute and the Texas A & M University (TAMU).
Author | : Sushant Upadhyaya |
Publisher | : |
Total Pages | : 154 |
Release | : 2004 |
Genre | : |
ISBN | : |
Download Cold in Place Recycling of Asphalt Pavement with Self Cementing Fly Ash Book in PDF, ePub and Kindle
Reclaimed asphalt base (RAB) can be used as granular base or sub-base material in all pavement types, including paved and unpaved roadways. The purpose of this laboratory investigation was to find mechanical properties of Class C fly ash stabilized RAB sub-base for flexible pavement design. It is shown that RAB is a good substitute for virgin materials used in pavement construction. The grain size distribution of RAB is found to critically affect the results. The structural layer coefficient for the RAB stabilized base was found with the existing correlation between California bearing ratio (CBR) and Resilient Modulus. This laboratory testing also investigates correlation between CBR and Dynamic Cone penetration (DCP). It was found that a good correlation exists between CBR and DCP for Class C fly ash-stabilized soils and that the correlations are similar to those developed by other researchers, for varieties of soils.
Author | : Bloom Consultants, LLC |
Publisher | : |
Total Pages | : 28 |
Release | : 2002 |
Genre | : Fly ash |
ISBN | : |
Download Cold In-place Recycling of Asphalt Pavement with Self-cementing Fly Ash on County Hwy JK Waukesha County, Wisconsin Book in PDF, ePub and Kindle
Author | : Stephen Alan Cross |
Publisher | : |
Total Pages | : 116 |
Release | : 1996 |
Genre | : Fly ash |
ISBN | : |
Download Evaluation of Fly Ash in Cold In-place Recycling Book in PDF, ePub and Kindle
The Kansas Department of Transportation has developed an innovative method of rehabilitating pavements of low volume roads utilizing cold in-place recycling of the asphalt and mixing type C fly ash with the recycled material. Field test sections indicate fly ash improves constructability and moisture sensitivity as well as utilizing a by-product that currently ends up in landfills. The same field test sections have shown increased cracking with increased fly ash contents and a drop in pavement modulus with time. Reclaimed asphalt pavement (RAP) was mixed with 3, 7, 11 and 15% fly ash and the laboratory samples were evaluated for fatigue life, durability, freeze-thaw resistance and thermal cracking. The performance of RAP mixed with asphalt emulsion and asphalt emulsion plus hydrated lime was also evaluated.
Author | : |
Publisher | : |
Total Pages | : 70 |
Release | : 2008 |
Genre | : Soil stabilization |
ISBN | : |
Download Soil stabilization and pavement recycling with self-cementing coal fly ash Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 54 |
Release | : 1998 |
Genre | : Pavements |
ISBN | : |
Download Report on Cold Recycling of Asphalt Pavements Book in PDF, ePub and Kindle
The responsibility of Task Force No. 38 was defined to be as follows: The Task Force would address the cold processing of reclaimed asphalt pavement (RAP) with or without additional additives and/or aggregates to create a rehabilitated component of the pavement structure. This report contains information on the cold recycling process, project selection and assessment, cold recycled mixture and pavement structural design, quality control and testing, guidelines for construction specifications and definitions of terms.
Author | : Rafat Siddique |
Publisher | : Springer Science & Business Media |
Total Pages | : 422 |
Release | : 2007-11-13 |
Genre | : Technology & Engineering |
ISBN | : 3540742948 |
Download Waste Materials and By-Products in Concrete Book in PDF, ePub and Kindle
The amount and variety of waste that humanity dumps in landfill sites is nothing short of a scandal, believes Rafat Siddique, of Deemed University in Patiala, India. Instead, we ought to be building new homes out of it! Siddique shows in this important book that many non-hazardous waste materials and by-products which are landfilled, can in fact be used in making concrete and similar construction materials.
Author | : Tyson David Rupnow |
Publisher | : |
Total Pages | : 2 |
Release | : 2011 |
Genre | : Cement |
ISBN | : |
Download Evaluation of Cement and Fly Ash Treated Recycled Asphalt Pavement and Aggregates for Base Construction Book in PDF, ePub and Kindle
INTRODUCTION: Many entities currently use recycled asphalt pavement (RAP) and other aggregates as base materials, temporary haul roads, and, in the case of RAP, hot mix asphalt construction. Several states currently allow the use of RAP combined with cement for a stabilized base course under both asphalt and concrete pavements. Currently, there is disagreement on what properties are required and how to test the cement and fly ash treated RAP for both asphalt and concrete pavement structures. This project investigated cement and fly ash treated RAP and other materials to determine their suitability for base course construction. OBJECTIVE: The objective of this research was to determine feasibility of cement and fly ash treated RAP and other aggregates as a structural layer for both portland cement concrete and hot mix asphalt pavement systems.
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2011 |
Genre | : |
ISBN | : |
Download Utilize Cementitious High Carbon Fly Ash (CHCFA) to Stabilize Cold In-Place Recycled (CIR) Asphalt Pavement as Base Coarse Book in PDF, ePub and Kindle
The purpose of this study was to evaluate the performance of cementitious high carbon fly ash (CHCFA) stabilized recycled asphalt pavement as a base course material in a real world setting. Three test road cells were built at MnROAD facility in Minnesota. These cells have the same asphalt surface layers, subbases, and subgrades, but three different base courses: conventional crushed aggregates, untreated recycled pavement materials (RPM), and CHCFA stabilized RPM materials. During and after the construction of the three cells, laboratory and field tests were carried out to characterize the material properties. The test results were used in the mechanistic-empirical pavement design guide (MEPDG) to predict the pavement performance. Based on the performance prediction, the life cycle analyses of cost, energy consumption, and greenhouse gasses were performed. The leaching impacts of these three types of base materials were compared. The laboratory and field tests showed that fly ash stabilized RPM had higher modulus than crushed aggregate and RPM did. Based on the MEPDG performance prediction, the service life of the Cell 79 containing fly ash stabilized RPM, is 23.5 years, which is about twice the service life (11 years) of the Cell 77 with RPM base, and about three times the service life (7.5 years) of the Cell 78 with crushed aggregate base. The life cycle analysis indicated that the usage of the fly ash stabilized RPM as the base of the flexible pavement can significantly reduce the life cycle cost, the energy consumption, the greenhouse gases emission. Concentrations of many trace elements, particularly those with relatively low water quality standards, diminish over time as water flows through the pavement profile. For many elements, concentrations below US water drinking water quality standards are attained at the bottom of the pavement profile within 2-4 pore volumes of flow.
Author | : Tyson David Rupnow |
Publisher | : |
Total Pages | : 50 |
Release | : 2011 |
Genre | : Cement |
ISBN | : |
Download Evaluation of Cement and Fly Ash Treated Recycled Asphalt Pavement and Aggregates for Base Construction Book in PDF, ePub and Kindle
The objective of this study was to determine feasibility of cement and fly ash treated recycled asphalt pavement (RAP) and other aggregates as a structural layer for both portland cement concrete and hot mix asphalt pavement systems. A 610 limestone from Kentucky was used as the reference material. Other materials used in the study include: Mexican 610 limestone, gravel and limestone based RAP, and blended calcium sulfate (BCS). Samples were prepared with three cement and fly ash contents and tested for compression and flexural strength. Length changes specimens were also produced and the resilient modulus was measured.