Selection of Aggregates for Skid Resistance PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Selection of Aggregates for Skid Resistance PDF full book. Access full book title Selection of Aggregates for Skid Resistance by P. D. Cenek. Download full books in PDF and EPUB format.
Author: P. D. Cenek
Publisher:
ISBN: 9780478394009
Category : Aggregates (Building materials)
Languages : en
Pages : 56
Get Book Here
Book Description
Author: P. D. Cenek
Publisher:
ISBN: 9780478394009
Category : Aggregates (Building materials)
Languages : en
Pages : 56
Get Book Here
Book Description
Author:
Publisher: AASHTO
ISBN: 1560514280
Category : Pavements
Languages : en
Pages : 87
Get Book Here
Book Description
This report contains guidelines and recommendations for managing and designing for friction on highway pavements. The contents of this report will be of interest to highway materials, construction, pavement management, safety, design, and research engineers, as well as others concerned with the friction and related surface characteristics of highway pavements.
Author: D. F. Moore
Publisher:
ISBN:
Category :
Languages : en
Pages : 80
Get Book Here
Book Description
Author: SH. Dahir
Publisher:
ISBN:
Category : Aggregate
Languages : en
Pages : 9
Get Book Here
Book Description
This paper includes a summary of an extensive literature review and the experience of the author in researching the properties of surface aggregates. It confirms that to resist wear, the aggregate must be hard and tough, and to resist polishing and surface slipperiness, the aggregate must wear slowly and irregularly. Particle shape, size, and gradation are important characteristics in providing optimum pavement surfaces, but ultimate aggregate performance depends largely on the aggregate mineralogy. A high proportion of hard minerals well cemented in a softer or a porous matrix will provide both high skid resistance and acceptable wear resistance. Within an aggregate particle, grain shape and size contribute to improved performance?medium to large and angular to subangular crystalline grains outperform minute and rounded non-crystalline grains. The performance history of an aggregate provides the best key to its expected future performance. In the absence of experience with an aggregate or when it is to meet new requirements, commonly used tests combined with petrographic analysis should provide sufficiently dependable initial information on the expected aggregate performance. A table that includes suggested target values for properties that enhance aggregate skid resistance and wear resistance is included in the paper.
Author: Cliff Nicholls
Publisher: CRC Press
ISBN: 0429867905
Category : Technology & Engineering
Languages : en
Pages : 144
Get Book Here
Book Description
This practical guide starts with a survey of the types of site and the asphalt properties which are required. Various external influences which may affect the relative importance of some properties are addressed, and the interplay of sites and external is considered. Asphalt mixture types and their properties are reviewed, largely as defined in the EN 13108 series but subdivided into further categories, and into maximum nominal coarse aggregate sizes using EN 13043 basic set plus set 2 sizes. Guidance is given, including using flowcharts, of the different mixtures that are suitable for each situation. In some cases a range of choices or mixtures with different degrees of suitability is offered. The guidance covers surface course, binder course and base, but with more focus on the surface course where the external influence is most significant. The site and external influence combinations on which a mixture can be used successfully are also given. The book is primarily intended for those who select asphalt on an occasional basis, such as architects or housing developers, but could be of use to other engineers with limited experience. It is also useful as an educational textbook for those studying asphalt technology.
Author: Richard L. Berger
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 156
Get Book Here
Book Description
Author: Delmar L. Bloem
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 36
Get Book Here
Book Description
Author: Glenn A. Fager
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 52
Get Book Here
Book Description
A study was undertaken between 1988 and 1990 to evaluate the frictional characteristics of the coarse aggregates proposed for use in bituminous pavements. A British Polishing Wheel along with a British Pendulum were used to test various types of aggregates. Some of the aggregates tested were sandstone, chat, wet bottom boiler slag, trap rock, steel slag, two different lightweight aggregates, both crushed and uncrushed gravel, and several different limestones from eastern Kansas.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: Eyad Masad
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 115
Get Book Here
Book Description
This report documents the findings from the research that was carried out as part of Phase II of TxDOT Project 0-5627. The research included measurements and analysis of mechanical and physical properties of aggregates used in surface mixes in the state of Texas. These properties were aggregate shape characteristics measured using the Aggregate Imaging System (AIMS), British Pendulum value, coarse aggregate acid insolubility, Los Angeles weight loss, Micro-Deval weight loss, and Magnesium sulfate weight loss. In addition, a database of field skid number measurements that were collected over a number of years using the skid trailer was developed. The Dynamic Friction Tester (DFT) and Circular Texture Meter (CTMeter) were used to measure friction and texture, respectively, of selected asphalt pavement sections. These data and measurements were used to carry out comprehensive statistical analyses of the influence of aggregate properties and mixture design on skid resistance value and its variability. Consequently, a method and software were developed for predicting asphalt pavement skid resistance. This method requires inputs that describe aggregate resistance to polishing, mixture gradation, and traffic. The developed software can be used to select the mixture type and aggregate source that are needed to achieve the required level of skid resistance for a given service life.
