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The purpose of this study is to investigate the rheological properties of alkali-activated slag prepared as a paste modified by various amount of polymer admixtur Four commercial admixtures VINNAPAS® 5023 L, 5111 L, 7016 F and 7220 E were used as polymer admixture in this study These admixtures were incorporated to alkali activated slag pastes in quantities ,...

This paper presents a review of the properties of fresh concrete including workability, heat of hydration, setting time, bleeding, and reactivity by using mineral admixtures fly ash FA , silica fume SF , ground granulated blast furnace slag GGBS , metakaolin MK , and rice husk ash RHA Comparison of normal and high-strength concrete in which cement has been partially ....

The compressive strength of complex binders containing two or three blended mineral admixtures in terms of glass powder GP , limestone powder LP , and steel slag powder SP was determined by a battery solution type compressive testing machine The morphology and microstructure characteristics of complex binder hydration products were also studied by ,...

9 The slag conditioner of claim 5 wherein 2 parts of blast furnace filter cake are used for each part of hot slag 10 The slag conditioner of claim 4 wherein a maximum of 6,000 lbs of said slag conditioner are used per heat 11 The slag conditioner of claim 4 wherein between 2,000 lbs and 6,000 lbs of said slag conditioner are used per heat...

PRO 42 1st International RILEM Symposium on Design, Performance and Use of Self-Consolidating Concrete - SCC 2005, China...

Introduction to Admixture Admixtures are material used in concrete to modify its properti The effects of using admixture depend on the properties of concrete, sometimes it is difficult to predict effect and result because of changing the cement brand, aggregate grading, mix proportions using a rich mix...

BFS used in this study, is water cooled slag supplied from Iron and Steel Factory, Helwan, Egypt The slag was firstly ground in laboratory ball mill for 3 hours to obtain Blaine specific surface area of 610m 2 /kg with specific gravity of 3000 kg/m 3 The chemical composition of MK and BFS was determined by X-ray fluorescence...

The GHCP accelerated setting and hardening, improved the early strength and long-term strength of the AASC paste and replaced slag by up to 45 The influencing factors affected the strength of the AASC with GHCP as an admixture in the following order alkali activator type >curing conditions >GHCP fineness...

Effects of ultra fine slag as mineral admixture on the compressive strength, water absorption and permeability of rice husk ash based geopolymer concrete April ,...

Mar 18, 2017 0183 32 Mineral admixtures - Fly-ash Blast-furnace slag, Silica fume and Rice husk Ash etc Chemical admixtures 1 Water-reducing admixture / Plasticizers These admixtures are used for following purposes To achieve a higher strength by decreasing the water cement ratio at the same workability as an admixture free mix...

In the study of Bakharev et al 11 , the dry shrinkage of sodium silicate-AAS was reduced by gypsum or a commercialized shrinkage-reducing admixture with 2-10 wt of slag Yuan et al 9 ....

Jan 01, 2018 0183 32 Free Online Library Experimental Study on the Concrete with Compound Admixture of Iron Tailings and Slag Powder under Low Cement Clinker System Research Article by Advances in Materials Science and Engineering Engineering and manufacturing Concretes Powders Powders Particulate matter X-ray diffraction X-rays Diffraction...

Lithium slag LS from lithium mica is the fastest growing solid waste in the Jiangxi Province of China in recent years, and a suitable utilization method has not been found In this paper, the effects of LS on the physical and mechanical properties of white reactive powder concrete WRPC were investigated The microstructure of the WRPC with LS was studied by SEM and ,...

In order to study the performance of concrete with compound admixture of iron tailings and slag powder under low cement clinker system, the mixture ratio of different iron tailings powder and slag powder was designed to prepare C30 and C50 concrete The workability, strength, carbonation depth, chloride diffusion coefficient, scanning electron microscopy SEM , energy ,...

3 The cement admixture according to 1 or 2 , wherein a material comprising the non-hydraulic compound is a steel-making slag 4 The cement admixture according to any one of 1 to 3 , wherein the total content of γ-2CaOSiO 2, α-CaOSiO 2 and calcium magnesium silicate is 65 or more...

Aug 09, 2021 0183 32 However, magnesium slag has hydraulic potential for similar mineral compositions to Portland cement This study aims to investigate the potential use of magnesium slag as a mineral admixture in cement concrete The influence of magnesium slag content and fineness on the workability, mechanical properties and durability of concrete was discussed...

A composite mineral admixture was prepared by grinding a mixture of steel slag and silica fume steel slag/silica fume ratio is 92 8 or 84 16, by mass A layer of silica fume was uniformly ....

In smelting industry, blast furnace ferronickel slag FNS is a type of granulated molten slag of nickel ore the nickel and iron of which are extracted in the blast furnace process before being quenched with water Huang et al,2017 Saha et al, 2018 Wangetal,2018a, b In general, the type of FNS which primarily consists of SiO 2,Al 2O...

1 Ordinary Portland Cement OPC Ordinary Portland cement is the most widely used type of cement, which is suitable for all general concrete construction It is the most commonly produced and used type of cement around the world, with annual global production of around 38 million cubic meters per year...

Dec 09, 2020 0183 32 Nowadays, some scholars have used ferronickel slag for studying the production of cement , concrete , and synthetic materials , but there are few studies on applying it to soil-cement Ferronickel slag powder is featured with potential activation , low price, and durability This paper has, through mixing compound admixture made by ferronickel ....

Jun 11, 2018 0183 32 Concrete mineral admixtures 1 MINERAL ADMIXTURES IN CONCRETE Prepared By, SINDHU ME-STRUCTURAL ENGINEERING 2 INTRODUCTION Admixtures are added in concrete to improve the quality of concrete Fly ash FA , silica fume SF , ground granulated blast furnace slag GGBS , Metakaolin MK , and rice husk ash RHA Possess ,...

Nov 15, 2012 0183 32 The mix ratios of the former two groups, cement with steel slag powder alone or with a compound admixture of GGBFS-steel slag powder, were in Tables 3 and 4In Table 3, the cement paste samples of S0, S10, S20, S30, S40, and S50 were prepared, in which cement was replaced by unmodified steel slag powder from 0 to 50 , respectivelyIn the second group ,...

Electric arc Furnace Slags and Cupola Slag Admixture Israel Sosa, Carlos Thomas, Juan Antonio Polanco, Jesús Setién and Pablo Tamayo LADICIM Laboratory of Materials Science and Engineering , University of Cantabria ETS de Ingenieros de Caminos, Canales y Puertos, AvLos Castros 44, 39005 - Santander, Spain ladicim unican Abstract...

Nov 30, 2017 0183 32 To promote the large-scale application of ground granulated blast furnace slag powder GGBFS in the cement and concrete industry, high-performance slag-based composite admixtures SCAs were prepared with GGBFS as the main raw material and converter steel slag powder SS , limestone powder LP and fly ash FA as auxiliary raw materials...

In this study, the admixture of GGBS, hydrated lime, and biochar was applied to stabilize the calcareous sand The strength of the biochar-enhanced AAS ,...

The effect of two kinds of mineral admixtures MA on volume stability of steel slag mortar SSM is investigated in order to solve the expansion problem due to steel slag The rate of linear expansion and flexural strength of SSM containing mineral admixture have been compared with control specimens Addition of FA and GGBFS slowed down the rate of expansion gain and ,...

Significant drying shrinkage is one of the main limitations for the wider utilization of alkali-activated slag AAS Few previous works revealed that it is possible to reduce AAS drying shrinkage by the use of shrinkage-reducing admixtures SRAs However, these studies were mainly focused on ,...

Dec 31, 1996 0183 32 Since the publication of the first edition ten years ago, significant developments have occurred in the use of admixtures in concrete Eight new chapters and a full update of the preceding ten chapters bring this book up to date reflecting the relative advances made in the science and technology of different groups of admixtur The increased role and ,...

Nov 23, 2021 0183 32 A composite mineral admixture was prepared by steel slag and superfine blast furnace slag The influence of superfine blast furnace slag content of the composite mixture on the mortar and concrete was investigated The results show that the composite mineral admixture may decrease the strength of concrete at the early age but improve the strength ,...

Sep 23, 2018 0183 32 In order to study the performance of concrete with compound admixture of iron tailings and slag powder under low cement clinker system, the mixture ratio of different iron tailings powder and slag powder was designed to prepare C30 and C50 concrete The workability, strength, carbonation depth, chloride diffusion coefficient, scanning electron ,...