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 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 Eco efficient concrete written by İ.B. Topçu and published by Elsevier Inc. Chapters. This book was released on 2013-02-04 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ground granulated blast furnace slag (GGBFS) is a by-product of the iron-making process and because of its high calcium silicate content it has excellent cementious content and has been used in the construction industry for years as a replacement for ordinary Portland cement (OPC). GGBFS is also routinely used to limit the temperature rise in large concrete pours and is therefore a desirable material to use in mass concrete placements where control of temperatures is an issue. The more gradual hydration of GGBS cement generates both lower peak and less total overall heat than OPC. GGBFS was approved for use at a 70% replacement even though it is only allowed to use a maximum 25% instead of cement. It has a higher proportion of the strength-enhancing calcium silicate hydrates (CSH) than concrete made with only OPC, and a reduced content of free lime, which does not contribute to concrete strength.
Download or read book Effects of Ground Granulated Blast Furnace Slag in Portland Cement Concrete written by Nicholas Robert Mason and published by . This book was released on 2003 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Ground Granulated Blast Furnace Slag on the Fresh and Hardened Properties of Concrete written by William Micah Hale and published by . This book was released on 2001 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 Evaluation for Durability and Strength Development of a Ground Granulated Blast Furnace Slag written by FJ. Hogan and published by . This book was released on 1981 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper covers the evaluation of a ground granulated blast furnace slag as a partial replacement for portland cement in mortars and concrete. The ground slag was evaluated for strength-producing properties as well as durability performance when used to replace 40 to 65% portland cement. This study shows that the ground slag when used to replace 40 to 65% portland cement did significantly improve strengths, sulfate resistance, and alkali aggregate reactivity.
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 Applied Petroleum Geomechanics written by Jon Jincai Zhang and published by Gulf Professional Publishing. This book was released on 2019-06-15 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applied Petroleum Geomechanics provides a bridge between theory and practice as a daily use reference that contains direct industry applications. Going beyond the basic fundamentals of rock properties, this guide covers critical field and lab tests, along with interpretations from actual drilling operations and worldwide case studies, including abnormal formation pressures from many major petroleum basins. Rounding out with borehole stability solutions and the geomechanics surrounding hydraulic fracturing and unconventional reservoirs, this comprehensive resource gives petroleum engineers a much-needed guide on how to tackle today’s advanced oil and gas operations. Presents methods in formation evaluation and the most recent advancements in the area, including tools, techniques and success stories Bridges the gap between theory of rock mechanics and practical oil and gas applications Helps readers understand pore pressure calculations and predictions that are critical to shale and hydraulic activity
Download or read book Eco efficient Masonry Bricks and Blocks written by Fernando Pacheco-Torgal and published by Woodhead Publishing. This book was released on 2014-11-27 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masonry walls constitute the interface between the building’s interior and the outdoor environment. Masonry walls are traditionally composed of fired-clay bricks (solid or perforated) or blocks (concrete or earth-based), but in the past (and even in the present) they were often associated as needing an extra special thermal and acoustical insulation layer. However, over more recent years investigations on thermal and acoustical features has led to the development of new improved bricks and blocks that no longer need these insulation layers. Traditional masonry units (fired-clay bricks, concrete or earth-based blocks) that don’t offer improved performance in terms of thermal and acoustical insulation are a symbol of a low-technology past, that are far removed from the demands of sustainable construction.This book provides an up-to-date state-of-the-art review on the eco-efficiency of masonry units, particular emphasis is placed on the design, properties, performance, durability and LCA of these materials. Since masonry units are also an excellent way to reuse bulk industrial waste the book will be important in the context of the Revised Waste Framework Directive 2008/98/EC which states that the minimum reuse and recycling targets for construction and demolition waste (CDW) should be at least 70% by 2020. On the 9th of March 2011 the European Union approved the Regulation (EU) 305/2011, known as the Construction Products Regulation (CPR) and it will be enforced after the 1st of July 2013. The future commercialization of construction materials in Europe makes their environmental assessment mandatory meaning that more information related to the environmental performance of building materials is much needed. Provides an authoritative guide to the eco-efficiency of masonry units Examines the reuse of waste materials Covers a range of materials including, clay, cement, earth and pumice
Download or read book Strength Shrinkage Hardened Air Void Characteristics of Concrete Containing Slag Cement written by Ryan David Foley and published by . This book was released on 2006 with total page 282 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 Effects of Ground Granulated Blast Furnace Slags on Some Properties of Pastes Mortars and Concretes written by VS. Dubovoy and published by . This book was released on 1986 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tests were performed under separate contracts at different times for three manufacturers of ground granulated blast-furnace slag to determine the performance of their products with portland cement. Physical tests were performed on pastes, mortars, and concretes to determine both freshly mixed and hardened properties. The effects of gypsum addition, fineness of slag, and levels of replacement in cement-slag combinations were evaluated. Physical tests performed on pastes and mortars included time of setting, compressive strength, and volume stability. In the mortar compressive strength series, various curing regimens were evaluated with respect to strength development. Included were normal moist curing at 23°C (73°F) and 4.4°C (40°F) and 100% relative humidity, and accelerated atmospheric curing [71°C(160°F)] and 100% relative humidity. Tests conducted on concretes containing slag included compressive strength, freeze-thaw durability, and resistance to deicer chemicals (scaling). Measurements of air-void systems of hardened concretes were made. Results generally show that use of slag can be beneficial without resulting in significant technical problems or adverse construction problems.
Download or read book Concrete at High Temperatures written by Zdeněk P. Bažant and published by Prentice Hall. This book was released on 1996 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the increased use of concrete in high temperature environments, it is essential for engineers to have a knowledge of the properties and mathematical modelling of concrete in such extreme conditions. Bringing together, for the first time, vast amounts of data previously scattered throughout numerous papers and periodicals, this book provides, in two parts, a comprehensive and systematic review of both the properties and the mathematical modelling of concrete at high temperatures. Part I provides a comprehensive description of the material properties of concrete at high temperatures. Assuming only a basic knowledge of mathematics, the information is presented at an elementary level suitable for graduates of civil engineering or materials science. Part II describes the response of concrete to high temperatures in precise terms based on mathematical modelling of physical processes. Suitable for advanced graduate students, researchers and specialists, it presents detailed mathematical models of phenomena such as heat transfer, moisture diffusion, creep, volume changes, cracking and fracture. Concrete at High Temperatures will prove a valuable reference source to university researchers and graduate students in civil engineering and materials science, engineers in research laboratories, and practising engineers concerned with fire resistance, concrete structures for nuclear reactors and chemical technology vessels.
Download or read book The Effect of Blast Furnace Slag Cement on Alkali Aggregate Reactivity written by FJ. Hogan and published by . This book was released on 1985 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growing shortage of quality aggregates and the trend toward higher alkali levels in portland cement has increased the risk of problems associated with alkali-aggregate reactivity (AAR). The use of ground granulated blast furnace slag as a partial replacement for portland cement is a recognized remedial alternative in cases where a potential for AAR exists.
Download or read book Iron Blast furnace Slag Production Processing Properties and Uses written by G. W. Josephson and published by . This book was released on 1949 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
