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Author: Nor Hidayah Hazali Publisher: ISBN: Category : Building materials Languages : en Pages : 87
Book Description
Consisting of silicates, iron and other compounds, slag cement is the by-product of molten iron production in a blast-furnace. Also known as ground granulated blast¬furnace slag, slag cement often used in concrete requiring maximum durability and higher strength. This study is to investigate the behavior of slag cement as a partial replacement material for Portland cement up to 30% and 40% of slag cement and its effectiveness in improving the properties of mortar. It was achieved by compression test and flexural test conducted to determine the highest strength development between samples for 7, 14 and 28 age days of curing time. There were three types of samples that has been tested according to BS 4551: Part 1: 1998, which are mortar containing 30% of slag cement, 40% of slag cement and mortar with plain ordinary Portland cement as the control samples. At the age of 28 days of curing, mortar containing 30% and 40% of slag gave compressive strength of 5.945 MPa, 11.51 MPa for air curing and 6.076 MPa, 12.34 MPa for water curing respectively and gave flexural strength of 2.2 MPa, 2.384 MPa for air curing and 2.249 MPa, 2.549 MPa for water curing respectively. Besides, this studies also to investigate the effect of curing condition to strength development and drying shrinkage of samples containing 30% and 40% of slag, where samples with water curing achieved higher strength development and low shrinkage rate than the samples with air curing. The used of concrete as samples besides mortar is recommended for future works and studies. -Author.
Author: Nor Hidayah Hazali Publisher: ISBN: Category : Building materials Languages : en Pages : 87
Book Description
Consisting of silicates, iron and other compounds, slag cement is the by-product of molten iron production in a blast-furnace. Also known as ground granulated blast¬furnace slag, slag cement often used in concrete requiring maximum durability and higher strength. This study is to investigate the behavior of slag cement as a partial replacement material for Portland cement up to 30% and 40% of slag cement and its effectiveness in improving the properties of mortar. It was achieved by compression test and flexural test conducted to determine the highest strength development between samples for 7, 14 and 28 age days of curing time. There were three types of samples that has been tested according to BS 4551: Part 1: 1998, which are mortar containing 30% of slag cement, 40% of slag cement and mortar with plain ordinary Portland cement as the control samples. At the age of 28 days of curing, mortar containing 30% and 40% of slag gave compressive strength of 5.945 MPa, 11.51 MPa for air curing and 6.076 MPa, 12.34 MPa for water curing respectively and gave flexural strength of 2.2 MPa, 2.384 MPa for air curing and 2.249 MPa, 2.549 MPa for water curing respectively. Besides, this studies also to investigate the effect of curing condition to strength development and drying shrinkage of samples containing 30% and 40% of slag, where samples with water curing achieved higher strength development and low shrinkage rate than the samples with air curing. The used of concrete as samples besides mortar is recommended for future works and studies. -Author.
Author: George C. Wang Publisher: Woodhead Publishing ISBN: 0081003978 Category : Technology & Engineering Languages : en Pages : 444
Book Description
The Utilization of Slag in Civil Infrastructure Construction strives to integrate the theory, research, and practice of slag utilization, including the production and processing of slags. The topics covered include: production and smelting processes for metals; chemical and physical properties of slags; pretreatment and post-treatment technology to enhance slag properties; potential environmental impact; mechanisms of potential expansion; special testing methods and characteristics; slag processing for aggregate and cementitious applications; suitability of slags for use in specific applications; overall properties of materials containing slags; and commercialization and economics. The focus of the book is on slag utilization technology, with a review of the basic properties and an exploration of how its use in the end product will be technically sound, environment-friendly, and economic. Covers the production, processing, and utilization of a broad range of ferrous, non-ferrous, and non-metallurgical slags Provides information on applicable methods for a particular slag and its utilization to reduce potential environmental impacts and promote natural resource sustainability Presents the overall technology of transferring a slag from the waste stream into a useful materials resource Provides a detailed review of the appropriate utilization of each slag from processing right through to aggregate and cementitious use requirements
Author: Ivanka Netinger Grubeša Publisher: Woodhead Publishing ISBN: 0081003765 Category : Technology & Engineering Languages : en Pages : 196
Book Description
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
Author: Maziati Mohd Yusoff Publisher: ISBN: Category : Building materials Languages : en Pages : 76
Book Description
This paper studies the effect of slag cement to the properties of mortar such compressive strength, flexural strength, workability and drying shrinkage. From the compression and flexural test, it was found that the increase in strength by time goes achieved at 70 percent replacement, even though it was still lower than control mortar. However the strength achieved for both sample was not differ too much where the strength was 13.41 MPa and 16.46 MPa in compression and 0.99 MPa and 1.21 MPa in flexural for curing in air and water respectively at 70 percent replacement while control mortar gave 20.82 MPa and 20.54 MPa compressive strength and 1.62 MPa and 1.56 MPa flexural strength for curing in water and air respectively. At aged 7 days, mortar containing 80 percent slag cement gave the highest flexural strength, 1.32 MPa but from whole results in both strength tests, the strength was reduced by the time goes. The strength achieved was only 0.69 MPa and 0.52 MPa in flexural and 5.82 MPa and 5.25 MPa in compression for water and air curing respectively. In drying shrinkage, it was found that mortar incorporating slag cement gave the greater results than control mortar but at 80 percent replacement in air curing condition, the shrinkage was obviously decrease and lower than control mortar at aged 13 days and beyond. Therefore from all of the strength achieved, it proved that the 70 percent replacement is more suitable to be used as cement partial replacement. -Author.
Author: Hanizar Othman Publisher: ISBN: Category : Building materials Languages : en Pages : 68
Book Description
This study is to investigate the engineering properties of slag cement as partial replacement material at 50% and 60% of binder content. The slag cement is also known as ground granulated blast furnace slag (GGBS). The field of studies covers important parameters in determining the engineering properties such as compressive and flexural strength and drying shrinkage. A total of 54 cubes (70 x 70 x 70 mm) and 54 prisms (l00 x 100 x 500 mm) were prepared in three groups according to different binder content and the samples were cured under two curing conditions which were air and water curing for 7, 14 and 28 days before testing. Three types of mixtures were prepared based on the level of replacement of 50%, 60% and 0% as the control mixture. The water to cement ratio of 0.5 and cement: aggregates ratio of 1:3 were applied to all mixtures with the aggregates size are within the range of 1.18 mm to 2.36 mm. The result showed that the GGBS mixtures achieved higher compressive and flexural strength than OPC mixture for water curing condition but lower strength for air curing condition. The 60% GGBS mixture shows highest drying shrinkage strain compared to other mixture in both curing condition. Through the observation, the GGBS showed lower early strength gain but a satisfying improvement of strength as the time increased. The study demonstrated that better engineering properties of slag cement can be achieved with proper curing condition. -Author.
Author: Caijun Shi Publisher: CRC Press ISBN: 0203390679 Category : Architecture Languages : en Pages : 388
Book Description
The first English-language book which reviews and summarizes worldwide research advances in alkali-activated cements and concrete. Essential topics include: raw materials and their properties for the production of the two new types of binder the hydration and microstructure development of alkali-activated slag cements the mechanical properties and durability of alkali-activated slag cement and concrete other various cementing systems and their applications related standards and specifications. This respected team of authors has produced an important piece of research that will be of great interest to professionals and academics alike, enabling the production of more durable and environmentally sensitive materials.
Author: Cuong Ha-Minh Publisher: Springer Nature ISBN: 981150802X Category : Science Languages : en Pages : 1264
Book Description
This book presents selected articles from the 5th International Conference on Geotechnics, Civil Engineering Works and Structures, held in Ha Noi, focusing on the theme “Innovation for Sustainable Infrastructure”, aiming to not only raise awareness of the vital importance of sustainability in infrastructure development but to also highlight the essential roles of innovation and technology in planning and building sustainable infrastructure. It provides an international platform for researchers, practitioners, policymakers and entrepreneurs to present their recent advances and to exchange knowledge and experience on various topics related to the theme of “Innovation for Sustainable Infrastructure”.
Author: F. Pacheco-Torgal Publisher: Elsevier ISBN: 1782422889 Category : Technology & Engineering Languages : en Pages : 855
Book Description
This book provides an updated state-of-the-art review on new developments in alkali-activation. The main binder of concrete, Portland cement, represents almost 80% of the total CO2 emissions of concrete which are about 6 to 7% of the Planet’s total CO2 emissions. This is particularly serious in the current context of climate change and it could get even worse because the demand for Portland cement is expected to increase by almost 200% by 2050 from 2010 levels, reaching 6000 million tons/year. Alkali-activated binders represent an alternative to Portland cement having higher durability and a lower CO2 footprint. Reviews the chemistry, mix design, manufacture and properties of alkali-activated cement-based concrete binders Considers performance in adverse environmental conditions. Offers equal emphasis on the science behind the technology and its use in civil engineering.
Author: Nor Hidayah Hazali
Author: Nor Hidayah Hazali
Author: George C. Wang
Author: Ivanka Netinger Grubeša
Author: Maziati Mohd Yusoff
Author: Hanizar Othman
Author: Chee Xian Ng
Author: Caijun Shi
Author: Cuong Ha-Minh
Author: Fadhadli Zakaria
Author: F. Pacheco-Torgal