Download or read book Early Performance of Concrete Pavement Containing Ground Granulated Blast Furnace Slag written by Daniel Edward Boltz and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Ground Granulated Blast Furnace Slag in Portland Cement Concrete written by Irene K. LaBarca and published by . This book was released on 2007 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research examined the properties of concrete containing grade 120 slag cement at replacement levels of 0%, 30%, and 50%. The primary concrete properties studied were compressive strength, split-tensile strength, and deicer scaling resistance. Material variations included four sources of ordinary portland cement and two types of coarse aggregate. Strength properties were studied at room temperature and 40°F mix and curing conditions. Deicer scaling resistance was studied for concrete cured under six curing conditions. Carbonation of concrete cured under these six conditions was also investigated.
Download or read book Effect of Ground Granulated Blast Furnace Slag GGBFS on Mechanical Properties of Roller Compacted Concrete Pavement written by Arash Aghaeipour and published by . This book was released on 2020 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of various convenient features, such as high manufacturing speed, cost effectiveness, and high strength at low ages, roller-compacted concrete (RCC) has found growing use in the construction of concrete pavements. This study investigated the effect of ground granulated blast furnace slag on the mechanical properties (compressive and tensile strength and modulus of rupture) of RCC at the ages of 28 and 90 days. For this purpose, 40 preliminary RCC mix designs based on slag contents of 0, 20, 40, and 60 % (by weight of cementitious materials), moisture contents of 4, 4.75, 5.5, 6.25 and 7 % (by total weight of cementitious materials and aggregates), and cementitious material contents of 12 and 15 % (by weight of aggregate) were devised and tested to determine the optimum moisture content for eight primary mix designs. The primary mix designs were used to make 144 specimens for the evaluation of targeted mechanical properties. The results showed that the moisture content that was needed to reach maximum compaction increased with increasing slag content. The highest strengths were observed in the specimens that contained 40 % slag, which all exhibited equal or greater strength than the corresponding slag-free specimens. The scanning electron microscope images showed that this difference can be attributed to the better filling of pores and cracks with small-sized slag particles, which outperform cement particles in this respect. It seems that there is an optimum level for replacing cement with slag in order to achieve improved strength and that exceeding this level will lead to strength reduction. In this study, this optimum level was found to be 40 % slag. Moreover, increasing the cementitious material content from 12 to 15 % was found to increase the compressive strength, tensile strength, and modulus of rupture by reducing the water-to-cement ratio.
Download or read book Performance of Concrete Containing Ground Granulated Blast Furnace Slag as Cement Replacement written by Abdul Chalid and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Project Evaluation of Portland Cement Concretes Containing Ground Granulated Blast Furnace Slag written by Allen Lee Sehn and published by . This book was released on 2002 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: A two part laboratory experimental program was conducted to evaluate strength and durability of various concrete mix designs. In Part I of the study, the influence of using Grade 120 ground granulated blast furnace slag (GGBFS) on the strength and durability properties of concrete was evaluated. GGBFS was used to replace Portland cement at replacement rates ranging from 0 to 75 percent. In Part II of the study, the influence of coarse aggregate size on the strength and durability of the ODOT Class C mix designs was evaluated. Coarse aggregate sizes included #57, #46, and #357. The ODOT high performance concrete mix designs were also included in this study.
Download or read book Effect of Ground Granulated Blast Furnace Slag on the Performance of Concrete Produced with Variations in Cement Brand and Aggregate written by Chad Sippel and published by . This book was released on 2004 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Evaluation of a Concrete Pavement Containing Portland Blast furnace Slag Cement written by and published by . This book was released on 1962 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Use of Slag Aggregates and Slag Cements in Concrete Pavements to Reduce the Maintenance Cost written by Kho Pin Verian and published by . This book was released on 2018-04-30 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The air-cooled blast furnace slag (ACBFS), the by-product of the pig iron making process, is often used as coarse aggregate in portland cement concrete (PCC) pavements, especially in the areas located in the vicinity of the iron mills. The utilization of this by-product as an aggregate in concrete offers environmental and economic benefits in the form of elimination of waste, decrease in the disposal costs, and reduction in need for mining of the natural materials. However, concerns exist with relation of the influence of these aggregates on the long-term durability of pavement concretes, especially at locations exposed to freezing and thawing environment.The objective of this research was to evaluate the influence of using the ACBFS aggregate (slag aggregate) as a replacement for natural aggregates on the properties of pavement concrete designed to meet the standard specifications of the Indiana Department of Transportation. A total of eight different concrete mixtures, four containing air-cooled blast furnace slag (ACBFS) as coarse aggregate and additional four containing natural dolomite, were used in this study.The mechanical and durability properties of these concretes were assessed by conducting series of tests prior and after the exposure to FT and WD cycles. In addition, changes in the overall physical appearance of the test specimens were also documented to aid in the evaluation of the effects of given exposure conditions on the deterioration process of concretes. In the case of a plain concrete, the analysis of the data collected during the study (i.e. the observed loss of strength, reduction in the dynamic modulus of elasticity, and physical changes in the appearance of the specimens) indicated that the calcium chloride (CaCl2) deicer caused the most severe distress, followed by the magnesium chloride (MgCl2). Specimens exposed to sodium chloride (NaCl) experienced the least damage and performed comparably to those exposed to distilled water (DST).The use of either Class C fly ash, slag cement or the combination of both as part of the binder was found to greatly increase the resistance of concrete to damaging effects of deicers.
Download or read book Evaluation of Portland Cement Concretes Containing Ground Granulated Blast Furnace Slag written by Allen Lee Sehn and published by . This book was released on 2002 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: A two part laboratory experimental program was conducted to evaluate strength and durability of various concrete mix designs. In Part I of the study, the influence of using Grade 120 ground granulated blast furnace slag (GGBFS) on the strength and durability properties of concrete was evaluated. GGBFS was used to replace Portland cement at replacement rates ranging from 0 to 75 percent. In Part II of the study, the influence of coarse aggregate size on the strength and durability of the ODOT Class C mix designs was evaluated. Coarse aggregate sizes included #57, #46, and #357. The ODOT high performance concrete mix designs were also included in this study.
Download or read book Evaluation of Pavement Performance on DEL 23 written by Ohio Research Institute for Transportation and the Environment and published by . This book was released on 2007 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1994, a ramp containing two AC and two PCC sections in the SPS-8 experiment was constructed on the Ohio SHRP Test Road. In 1996, 36 more sections in the SPS-1, SPS-2 and SPS-9 experiments were opened to traffic on the mainline pavement. The response and performance of these sections, climatic information from an on-site weather station, subsurface environmental conditions from sensors installed in several test sections, and traffic loading from an on-site weigh-in-motion (WIM) system have been monitored and incorporated into the national LTPP database. Analyses of these data have been published in a number of reports, technical papers and bulletins. The research project documented in this report was the latest effort by ODOT to continue monitoring the response and performance of many of the original 40 test sections and several sections constructed later to replace the lighter designs which, as anticipated, showed early distress. Data in this report cover the years 2000-2005. In addition to the new response and performance data obtained on the test road, this report includes: an analysis of current methodologies to mathematically model AC and PCC pavement structures, a petrographic analysis of concrete from three different PCC pavement mixes and a lean concrete base, and an in-depth analysis of WIM data. Three other experimental pavements have been constructed on ATH 50, LOG 33 and ERI/LOR 2 to evaluate the response and performance of specific parameters of interest to ODOT. These parameters included: high performance concrete containing ground granulated blast furnace slag and different types of dowel bars on ATH 50, different types of base material under flexible pavement on LOG 33, and different types of base material under rigid pavement on ERI/LOR 2. This report also contains data collected on these three pavements during 2000-2005.
Download or read book Combinations of Pozzolans and Ground Granulated Blast furnace Slag for Durable Hydraulic Cement Concrete written by Daniel Stephen Lane and published by . This book was released on 1999 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydraulic cement concretes were produced using pozzolans and ground, granulated, blast-furnace slag (slag) to investigate the effect of these materials on durability. The pozzolans used were an ASTM C 618 Class F fly ash with a low lime content and a dry, densified silica fume. The slag was an ASTM C 989 Grade 120 material. Concretes with a fixed cementitious materials content of 377 kg/m 3 and water-to-cementitious materials ratio (w/cm) were produced with an ASTM C 150 Type I/II cement and pozzolans or slag. The following replacement levels were used: fly ash: 0, 15, 25, and 35 percent; silica fume: 2.5, 5, and 7 percent; and slag: 25, 35, 50, and 60 percent. Concretes were also produced by combining small amounts of silica fume with small amounts of fly ash or slag. The concretes were evaluated for strength, electrical resistance (ionic transport, permeability), drying shrinkage, resistance to freezing and thawing, and resistance to alkali-silica reaction (ASR)-related expansions. Early-age strengths and resistance to freezing and thawing were compromised by high replacement levels of fly ash or slag, although the use of a constant w/cm may have exaggerated these responses. Concrete durability, as indicated by electrical resistance and resistance to ASR, was greatly improved by increasing the pozzolan or slag content. Use of ternary blends produced the desired property levels while maintaining the necessary durability characteristics.
Download or read book Early age Autogenous Shrinkage of Concrete Containing Ground Granulated Blast Furnace Slag written by Robert G. Shogren and published by . This book was released on 2009 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concrete Pavement Design Construction and Performance written by Norbert Delatte and published by CRC Press. This book was released on 2018-10-08 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addressing the interactions between the different design and construction variables and techniques this book illustrates best practices for constructing economical, long life concrete pavements. The book proceeds in much the same way as a pavement construction project. First, different alternatives for concrete pavement solutions are outlined. The desired performance and behaviour parameters are identified. Next, appropriate materials are outlined and the most suitable concrete proportions determined. The design can be completed, and then the necessary construction steps for translating the design into a durable facility are carried out. Although the focus reflects highways as the most common application, special features of airport, industrial, and light duty pavements are also addressed. Use is made of modeling and performance tools such as HIPERPAV and LTPP to illustrate behavior and performance, along with some case studies. As concrete pavements are more complex than they seem, and the costs of mistakes or of over-design can be high, this is a valuable book for engineers in both the public and private sectors.
Download or read book Evaluation of Grade 120 Granulated Ground Blast Furnace Slag written by Craig Duos and published by . This book was released on 1999 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study evaluates Grade 120 Granulated Ground Blast Furnace Slag (GGBFS) and its effect on the properties of hydraulic cement concretes used in structural and pavement construction. Several mix designs, structural and pavement, were used for this evaluation with varying amounts of GGBFS used as a substitution for cement. These substitutions were a percentage by weight substitution. This study looked at the effects of slag on workability, constructability, durability and the compressive strength of the concrete. How GGBFS affected the concrete's set times was also critical in establishing the maximum substitution amount for Louisiana Department of Transportation and Development (DOTD) concrete structures and pavements. In addition, an informal telephone survey was taken with other state DOTs concerning their use and experience using GGBFS in concrete. This further assisted DOTD in the development of their own specifications for GGBFS concretes.
Download or read book High Performance Concrete Pavements written by and published by . This book was released on 2002 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characteristics and Uses of Steel Slag in Building Construction written by Ivanka Netinger Grubeša and published by Woodhead Publishing. This book was released on 2016-05-20 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Characteristics and Uses of Steel Slag in Building Construction focuses predominantly on the utilization of ferrous slag (blast furnace and steel slag) in building construction. This extensive literature review discusses the worldwide utilization of ferrous slag and applications in all sectors of civil engineering, including structural engineering, road construction, and hydro-technical structures. It presents cutting-edge research on the characteristics and properties of ferrous slag, and its overall impact on the environment. - Comprehensively reviews the literature on the use of blast furnace and steel slag in civil engineering - Examines the environmental impact of slag production and its effect on human health - Presents cutting-edge research from worldwide studies on the use of blast furnace and steel slag
Download or read book Integrated Materials and Construction Practices for Concrete Pavement written by and published by . This book was released on 2006 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manual of integrated material and construction practices for concrete pavements.
