Ultrafine Ground Granulated Blast Furnace Slag Research Articles

Ultrafine GGBS and Fly Ash as Cement Replacement for Sustainable Concrete

The construction industry is one of the major contributors to environmental degradation. Hence, it requires eco-friendly practices to make concrete more sustainable. This can be achieved by addition of mineral admixtures as a cement replacement. This process helps the environment in two ways: by reducing the carbon dioxide emission through cement replacement and by utilizing mineral admixtures such as fly ash, Ground Granulated Blast Furnace Slag (GGBS), metakaolin, rice husk ash and silica fume, which are all industrial wastes or by-products. Hence, this approach lowers the greenhouse effect and global warming by reducing carbon dioxide emissions and prevents environmental contamination by utilizing industrial wastes. This experimental study aims to find the perfect combination of mineral admixtures such as fly ash and ultrafine GGBS to maximize cement replacement in concrete without compromising its mechanical properties and achieving a more sustainable concrete for day-to-day practice. For this study, the fly ash percentage was maintained at 20% for all trials, with the ultrafine GGBS percentage varying from 15% to 30%. Keywords: Sustainable Concrete; Ultrafine GGBS; Fly ash; Mineral Admixture.

Development and Characterization of Basalt Fiber-Reinforced Green Concrete Utilizing Coconut Shell Aggregates

Lightweight aggregate concrete (LWAC) is gaining interest due to its reduced weight, high strength, and durability while being cost-effective. This research proposes a method to design an LWAC by integrating coconut shell (CS) as coarse lightweight aggregate and a high volume of wet-grinded ultrafine ground granulated blast furnace slag (UGGBS). To optimize the mix design of LWAC, a particle packing model was employed. A comparative analysis was conducted between normal-weight concrete (M40) and the optimized LWAC reinforced with basalt fibers (BF). The parameters analyzed include CO2 emissions, density, surface crack conditions, water absorption and porosity, sorptivity, and compressive and flexural strength. The optimal design was determined using the packing density method. Also, the impact of BF was investigated at varying levels (0%, 0.15%, and 1%). The results revealed that the incorporation of UGGBS had a substantial enhancement to the mechanical properties of LWAC when BF and CS were incorporated. As a significant finding of this research, a grade 30 LWAC with demolded density of 1864 kg/m3 containing only 284 kg/m3 cement was developed. The LWAC with high-volume UGGBS and BF had the minimum CO2 emissions at 390.9 kg/t, marking a reduction of about 31.6% compared to conventional M40-grade concrete. This research presents an introductory approach to sustainable, environmentally friendly, high-strength, and low-density concrete production by using packing density optimization, thereby contributing to both environmental conservation and structural outcomes.

Ultrafine GGBS and Ultrafine Fly Ash as Cement Replacement to Mitigate the Environmental Impact of Concrete

Concrete is used as a construction material using all over the world, contributing most important role to infrastructure development. However, it has long been recognized for its environmental footprints. This research paper will provide a study where ultrafine fly ash and ultrafine GGBS are used to maximize cement replacement in concrete without compromising its mechanical properties and achieving a more sustainable concrete, comprehensive review of the environmental impacts of concrete included production, empirical data, statistical analyses, and supplementary materials to mitigate its adverse effects. Drawing upon theoretical frameworks, empirical data, and statistical analysis, this paper evaluates the efficacy of various strategies in reducing the carbon footprint, energy consumption, and resource depletion associated with concrete production. Through overview of CCU, recycled and reuse of materials and an examination of alternative material and best practices, this paper offers insights into the current state of sustainable concrete production and identifies opportunities for future research and development. Keywords: Sustainable Concrete, Ultrafine GGBS, Ultrafine Fly ash, Mineral Admixture, Carbon Capture and Utilization.

Using superabsorbent polymer to mitigate the fast setting and high autogenous shrinkage of carbide slag and sodium silicate activated ultrafine GGBS based composites

Alkali-activated GGBS based composite is a low carbon engineering material, but limited by some unavoidable disadvantages, such as fast setting and high autogenous shrinkage. In present work, superabsorbent polymer (SAP), which was synthesized by copolymerizing acrylic acid and acrylamide, was used to control the setting time and autogenous shrinkage of carbide slag and sodium silicate activated ultrafine GGBS based composites (CSGC). Results indicated that the fast setting of CSGC was effectively controlled by the addition of SAP. The initial and final setting time were delayed by more than 30 min and 60 min respectively, which provides the possibility to ensure the on-site construction operation. Although SAP mitigated the fast setting of CSGC, it had a negligible effect on the heat release during hydration. Autogenous shrinkage was reduced by 27% when only 0.1% SAP was added, and the compensation of autogenous shrinkage became more pronounced with the increased SAP dosage. The amount of large capillary pores above 100 nm was significantly increased in CSGC incorporating high SAP dosage, which leads to a decline in compressive strength. However, the compressive strength of CSGC with low SAP dosage can match that of reference group at 28 d, due to the internal curing effect of released water from SAP.

Characteristics of carbide-slag-activated GGBS–fly ash materials: Strength, hydration mechanism, microstructure, and sustainability

To improve the reuse of industrial solid wastes, this study investigates alkali-activated material (AAM) consisting of ground granulated blast-furnace slag (GGBS) and fly ash (FA) activated by carbide slag (CS). A separation treatment process was introduced to obtain reactive ultrafine GGBS and FA (RUGGBS and RUFA). The compressive strength is used to differentiate between representative specimens for exploring the hydration mechanism in terms of hydration process, hydrate types, and pore-structure characteristics. Finally, the environmental and economic benefits of these materials are calculated and analyzed based on the material sustainability indicators (MSIs). The results show that the separation of GGBS and FA reduces their particle size and enhances their hydration activity. Although using RUGGBS and RUFA delays the setting time of AAM, it results in lower hydration heat release and increases compressive strength after aging for 3 days. RUGGBS and RUFA synergistically promote polymerization reactions in CS-activated GGBS-FA systems, which results in more hydrates, including C–S–H gel, C–A–S–H gel, and hydrotalcite-like hydrates, helping to optimize the pore structure and strengthen the material. These findings suggest that separating industrial solid wastes can promote the use of AAMs in construction engineering by significantly reducing their environmental impact.

Study for the development of flyash and GGBS-based alkali activated foam concrete

This research project focuses on developing sustainable mix proportions for foam concrete with densities ranging from 1200 kg/m3 to 1400 kg/m3, suitable for use as a structural material. To achieve this, the study uses pre-formed foam of a specific density added to the mortar mix, with aluminium oxide powder as a foaming agent and a 12.5 molarity sodium hydroxide solution to densify the foam. To make the foam concrete sustainable, industrial waste products such as ultrafine GGBS and fly ash are added as partial replacements, and the study examines the qualities of the material in both fresh and hardened states by varying the amounts of GGBS, fly ash, and additives used. By examining the air-void-strength relationship of foam concrete with a compressive strength of 5.5 MPa, the study achieves a better understanding of the material's properties and how to achieve greater compressive strength by adjusting the amount of ultrafine GGBS and fly ash in the mix. In conclusion, this research project offers a sustainable solution for foam concrete as a structural material by utilising industrial waste products and exploring the material's qualities in both fresh and hardened states.

Mechanical and bond behaviour of high volume Ultrafine-slag blended fly ash based alkali activated concrete

The development of Geopolymer concrete (GPC) mixes by employing large volume of ultrafine ground granulated blast furnace slag (UBFS) blended with Fly ash (FA) and activated by sodium hydroxide (SH) has been presented in this study. Several GPC mixes has been prepared to investigate the effect of varying alkali content, fine aggregate to total aggregate ratio (s/a) and molar concentration (M) of alkali activator on the fresh and hardened characteristics, including the bond strength with Portland cement concrete (PCC). The properties of the GPC mixes are assessed by workability test, compressive strength test, split tensile strength test and slant shear test, including the microstructure through FESEM (Field Emission Scan Electron Microscopy) and X-ray diffraction (XRD). The test result shows that s/a ratio is a crucial factor in controlling segregation and bleeding in GPC. However, an ideal GPC mix with s/a ratio 0.41 provides a better packing resulting in improved mechanical properties. Application of high volume UBFS in the GPC exhibits better reaction products as shown by the microstructure at a relatively lower alkali concentration which ultimately leads to higher strength. Superior bond strength is achieved between the GPC and old PCC substrate; however, the molarity of SH significantly affects the adhesion property of GPC.

Physico-Chemical Substantiation of Obtaining an Effective Cement Composite with Ultrafine GGBS Admixture

To solve a number of problems in construction materials science, composites with nano and ultrafine admixtures were analyzed. Their properties were studied, taking into account the variants of homogenization and stabilization of the system. To characterize the processes of the structure formation of a new material, mathematical methods were also applied. According to the literature review, the aim of the work was formulated. The subject of this research is to conduct physico-chemical studies that characterize the processes occurring during the homogenization and stabilization of the cement system with GGBS components and to establish the effect of the admixture on the properties of the composite. To achieve this goal, an ultrafine admixture based on GGBS was obtained, and the possibility of its introduction into the cement system in the form of a stabilized suspension instead of mixing water was considered. To provide increased characteristics of cement stone modified with the ultrafine admixture, a number of tests were carried out to study homogenization and stabilization of fine slag particles in suspension. The ultrasonic processing parameters were defined to provide uniform distribution of fine slag additive in the suspension: the processing time is 15–20 min, the frequency of ultrasonic vibrations is 44 kHz, the temperature of the dispersed medium is 25 ± 2 °C. To define physical and chemical processes appearing during the introduction of fine slag into water and water-polymer dispersed medium, the mechanism of interaction between fine slag and water was studied. In addition, the mechanism of chemisorption on the surface of fine slag particles and the stabilization mechanism of ultrafine slag particles with a plasticizer was studied to form the concept of aggregate and sedimentation stability of slag particles in suspension. It was found that the stabilization of fine slag particles by a plasticizer is significantly influenced by the hardness of water. The higher the water hardness, the more plasticizer required to stabilize the fine slag particles. At the same time, it was established that the concentration of the plasticizer should not exceed the critical micelle concentration value. If it is exceeded, the plasticizer solution transforms into the micellar colloidal system, and the stabilization of fine slag suspension will not occur. The studies of homogenization and stabilization of the slag suspension allowed the authors to substantiate the possibility of uniform distribution of fine particles in the cement matrix, followed by the formation of a denser and stronger cement stone structure. Cement-sand samples based on Portland cement (OPC) and slag-Portland cement (SPC) with GGBFS admixture showed higher compressive and flexural strength characteristics in the initial hardening periods and at 28 days. It was found that modified samples are more stable in an aggressive medium. On the 90th day of exposure, the resistance coefficient was 0.9 for a modified sample based on OPC and 0.98 for a modified sample based on SPC. The increased sulfate attack resistance of the samples is due to the formation of a dense stone with reduced porosity. It is noted that the porosity of modified OPC samples decreases by 14% and by 18% for SPC-based modified samples compared to the control sample at 28 days. Due to the fact that pores in the cement stone are blocked with hydration products, which make the structure of the cement stone denser, the filtration of aggressive solutions deep into its structure is difficult. Thus, the obtained concrete based on a cement composite with ultrafine slag can be applied as a protective layer of steel reinforcement in a reinforced concrete structure.

EXPERIMENTAL STUDY ON STRENGTH CHARACTERISTICS OF ULTRA HIGH STRENGTH CONCRETE M-150

This study aims full replacement of natural sand with quartz sand which has low porosity & certain amount of cement replaced with supplementary cementitious material (ultrafine GGBS) obtained as the byproduct from the steel manufacturing industries. Mixes are designed for achieving compressive strength of M-150 by using locally available materials. Trials has performed & cubes are tested for their compressive strength at 3 days, 7 days, & another set at the age of 28 days. Out of all mixes one mix has been selected which has achieved the targeted strength. The maximum compressive strength is obtained when the medium quartz sand and coarse quartz sand are in the same ratio with zero percent natural sand. From the results it is observed that, natural sand can be fully replaced with quartz sand in high strength concrete & optimum percentage of cement can be replaced with ultrafine GGBS is up to 30%, optimum percentage of high range water reducing agent (HRWRA) is 0.9% of total weight of cementitious material, steel fibers are 6.2% of total weight of cementitious material. The maximum strength achieved is 156.5 MPa. Based on the results and discussions certain recommendations are framed in the design of Ultra High Strength Concrete M-150 with locally available material with great sustainability.

STUDY ON FLEXURAL BEHAVIOR OF ULTRA HIGH STRENGTH CONCRETE USING L-BOX

Ultra-high strength concrete (UHSC) a new technology to strengthen precast industry business with new products and solutions. The purpose of this research is to gauge the performance of ultra-high strength concrete in flexure, as incremental compressive strength of concrete will increase its brittleness. In the present investigation, the cement is partially replaced with scm’s like ultra-fine GGBS. M125 mix has been designed with W/C ratio 0.15 with high end water reducing agent with normal curing in ambient temperature of 27°C +/-2°C and concrete has been placed in the prisms with and without using L-Box. The maximum flexural strength has been achieved 22.86 N/mm2 for M125 when used L-Box (as concrete flow through L-Box made the steel fibers orientation in the uniform direction and parallel to the neutral axis in tension zone) during the concreting. With this study we can conclude that the flexural strength of ultra-high strength concrete is purely depending upon the placing of the concrete during the application and the orientation of fibers in tension zone of the concrete. The flexural strength of UHSC can be improved easily by making the concrete flow through L-Box.

EXPERIMENTAL STUDY ON STRENGTH CHARACTERISTICS OF ULTRA HIGH STRENGTH CONCRETE M-150

This study aims full replacement of natural sand with quartz sand which has low porosity & certain amount of cement replaced with supplementary cementitious material (ultrafine GGBS) obtained as the byproduct from the steel manufacturing industries. Mixes are designed for achieving compressive strength of M-150 by using locally available materials. Trials has performed & cubes are tested for their compressive strength at 3 days, 7 days, & another set at the age of 28 days. Out of all mixes one mix has been selected which has achieved the targeted strength. The maximum compressive strength is obtained when the medium quartz sand and coarse quartz sand are in the same ratio with zero percent natural sand. From the results it is observed that, natural sand can be fully replaced with quartz sand in high strength concrete & optimum percentage of cement can be replaced with ultrafine GGBS is up to 30%, optimum percentage of high range water reducing agent (HRWRA) is 0.9% of total weight of cementitious material, steel fibers are 6.2% of total weight of cementitious material. The maximum strength achieved is 156.5 MPa. Based on the results and discussions certain recommendations are framed in the design of Ultra High Strength Concrete M-150 with locally available material with great sustainability.

STUDY ON FLEXURAL BEHAVIOR OF ULTRA HIGH STRENGTH CONCRETE USING L-BOX

Ultra-high strength concrete (UHSC) a new technology to strengthen precast industry business with new products and solutions. The purpose of this research is to gauge the performance of ultra-high strength concrete in flexure, as incremental compressive strength of concrete will increase its brittleness. In the present investigation, the cement is partially replaced with scm’s like ultra-fine GGBS. M125 mix has been designed with W/C ratio 0.15 with high end water reducing agent with normal curing in ambient temperature of 27°C +/-2°C and concrete has been placed in the prisms with and without using L-Box. The maximum flexural strength has been achieved 22.86 N/mm2 for M125 when used L-Box (as concrete flow through L-Box made the steel fibers orientation in the uniform direction and parallel to the neutral axis in tension zone) during the concreting. With this study we can conclude that the flexural strength of ultra-high strength concrete is purely depending upon the placing of the concrete during the application and the orientation of fibers in tension zone of the concrete. The flexural strength of UHSC can be improved easily by making the concrete flow through L-Box.

Eco-friendly UHPC prepared from high volume wet-grinded ultrafine GGBS slurry

The development of ultra-high performance (UHPC) concrete was restricted due to the large consumption and high cost of cement. In this study, eco-friendly UHPC was prepared by ultra-high content of wet-grinded ultrafine ground granulated blast furnace slag (UGGBS). And the content of mineral admixture in the cementitious system is up to 50%, of which UGGBS is as high as 40%. It was proved that the mechanical development, microstructure and hydration process of UHPC were significantly improved by UGGBS. The results showed that the compressive strength of G0UG20 was increased by 27% and 15% at 3 and 28 days compared with the reference group. Even if the cement content was reduced, the compressive strength of high volume UGGBS blended UHPC was still higher than the reference group. The addition of UGGBS significantly refined the pore structure and densified the hardened system. Meanwhile, the MCL and Al/Si of C-S-H gels were improved by UGGBS. In terms of environmental and economic benefits, the CO2 emissions and production costs were reduced by the addition of UGGBS.

Mechanical and Microstructural Properties of Copper Slag Based Blended Geopolymer Concrete

This work presents a novel way to examine the characteristics of fly ash, copper slag (CPS) along with the addition of Ultrafine Ground Granulated Blast Furnace Slag (UFGGBFS) based Geopolymer Concrete (GPC) for various molarities (10M, 12M and 14M). In GPC, fly ash was replaced with UFGGBFS (5 %, 10 % and 15 %) and copper slag was used as fine aggregate. Mechanical Characterization such as split tensile, flexural strength, workability and water absorption were conducted . GPC characterization and microstructural behaviour was studied by examining X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). From experimental results this study concludes that with a rise in molarity of GPC, along with incorporation of UFGGBFS, improved the performance, densification and strength of GPC.

Correlations between the Hardened Properties of Combination Type SCC Containing UFGGBFS

Abstract This study aims to develop models to correlate the different hardened properties of ultra-fine ground granulated blast-furnace slag (UFGGBFS) admixed SCC mixtures. Seven self-compacting concrete mixtures (SCC-A to SCC-G) were produced with a high powder content of 587 ± 2 kg/m3. The 450 kg/m3 (76 %) of powder was derived from the binders, and the remaining 137 ± 2 kg/m3 (24 %) was obtained from the powder particles (<125 µm) existing in the crushed stone sand. UFGGBFS was utilized as a supplementary binder. Properties of these SCC mixtures were evaluated in fresh as well as in the hardened state. The homogeneity, surface hardness, chloride permeability, electrical resistivity, and absorption of hardened SCC were detected with ultrasonic pulse velocity (UPV), rebound hammer, rapid chloride permeability, Wenner’s four-probe electrical resistivity, and water absorption test methods, respectively. All the seven SCC mixtures demonstrated a nonsegregating flowability and excellent passability without stacking and blocking. At 28, the mix SCC-B recorded a maximum strength of 54 MPa and 4.41 MPa under cube compression and splitting tensile tests, respectively. Moreover, the mix SCC-G demonstrated a 30-MPa compressive strength with a significant cement range of 150 kg/m3. Correlations between the various properties of SCC was also arrived using the experimental results, and it was compared with the existing models.

Characteristics of Blended Geopolymer Concrete Using Ultrafine Ground Granulated Blast Furnace Slag and Copper Slag

This paper presents the properties of blended geopolymer concrete manufactured using fly ash and ultrafine Ground Granulated Blast Furnace Slag (UFGGBFS), along with the copper slag (CPS) as replacement of fine aggregate (crushed stone sand). Various parameters considered in this study include different sodium hydroxide concentrations (10M, 12M and 14M); 0.35 as alkaline liquid to binder ratio; 2.5 as sodium silicate to sodium hydroxide ratio and cured in ambient curing condition. Further, geopolymer concrete was manufactured using fly ash as the prime source material which is replaced with UFGGBFS (0%, 5%, 10% and 15%). Copper slag has been used as replacement of fine aggregate in this study. Properties of the fresh manufactured geopolymer concrete were studied by slump test. Compressive strength of the manufactured geopolymer concrete was tested and recorded after curing for 3, 7 and 28 days. Microstructure Characterization of Geopolymer concrete specimens was done by Scanning Electron Microscope (SEM) analysis. Experimental results revealed that the addition of UFGGBFS resulted in an increased strength performance of geopolymer concrete. Also, this study demonstrated that the strength of geopolymer concrete increased with an increase in sodium hydroxide concentration. SEM results revealed that the addition of UFGGBFS resulted in a dense structure.

Impact of Ultrafine Ground Granulated Blast Furnace Slag on the Properties of High Strength Durable Concrete

Ultrafine ground granulated blast furnace slag (UFGGBFS), because of its pozzolanic nature, could be an extraordinary resource for the advanced development needs, since slag cements concrete can be of elite, if properly planned. Improvement of the durability properties of concrete to support a more extended life expectancy and creating a climate amicable greener concrete are turning out to be significant standards in getting high quality concrete. Fusing Ultrafine Ground Granulated Blast Furnace Slag (UFGGBFS) as a mineral admixture enhances the workability of fresh concrete and decreased the link between pores; in this way, decreasing the permeability and improving the obstruction of the solid against chloride infiltration. The measure of ozone depleting substance delivered in making the concrete and the energy needed to create the concrete are significantly decreased with the utilization of UFGGBFS. Ultrafine GGBFS (UFGGBFS) with a normal molecule size less than 10m and a Blaine surface area more than 600m2/kg can significantly improve the properties of the concrete as far as diffusion and chemical reactivity impacts. Compared with GGBFS, the UFGGBFS increases the rate of hydration and pozzolanic responses and has a superior filling impact. In this study, the early development of mechanical strength and permeability properties of high strength concrete with UFGGBFS is examined. Total five mixes with 180kg/m3 each of both Ordinary Portland Cement (OPC) concrete and Ultrafine Ground Granulated Blast furnace Slag (UFGGBFS) concrete were designed. The mixes starts from 0% replacement and gradually increases up to 20% (i.e 0, 5, 10, 15 and 20%) of identical all total cementitious materials with UFGGBFS substitution were planned and a sum of 145 samples from the five blends were projected. Compressive strength parameters, flexural strength parameter, modulus of elasticity parameter and water permeability test outcomes are introduced.

The hydration properties of ultra-fine ground granulated blast-furnace slag cement with a low water-to-binder ratio

Based on the fundamental principles of preparing reactive powder concrete (RPC), a new type of RPC was composed by replacing cement with the active powder component ultra-fine ground granulated blast-furnace slag (GGBS). GGBS is proposed as a potential alternative to silica fume (SF), which is currently the most commonly used RPC mineral admixture. In order to improve the brittleness of RPC, a steel fibre with appropriate length/diameter ratio was added. The ultra-fine GGBS (UFS) or SF replacement level was 20% by mass, with a water-to-binder (w/b) ratio of 0.18. The concrete specimens were pre-cured for 6 h at 20 °C and then exposed to steam curing conditions for 3 days. This study investigates the effects of the UFS and the SF on the durability of the RPC by examining the hydration properties, mechanical properties and permeability of RPC. Test results reveal that replacing the cement with UFS or SF does have a significant effect on the hydration properties, our results indicate that the inclusion of SF or UFS can accelerate the early hydration of cement and increase the consumption of Ca(OH)2. The mercury porosimetry and chloride ion penetration tests results revealed that RPC has a very low porosity and very dense structure. RPC with the addition of steel fibre exhibited a higher compressive strength than the RPC without steel fibre. Incorporating UFS into RPC had similar advantages to incorporating SF, but UFS proved to be the more economical admixture.

Artificial Neural Network to Predict the Compressive Strength of Semilightweight Concrete Containing Ultrafine GGBS

Abstract Design strength is usually determined after a 28-day curing period as per codal provisions. The prediction of compressive strength before curing reduces waiting time and expedites regular construction activity. The aim of this study is to develop a neural network model to predict the 28-day compressive strength of semilightweight concrete (sLWC) containing ultrafine ground granulated blast-furnace slag (UFGGBS). In this investigation, a novel lightweight coarse aggregate that is made up of wood ash was used to prepare sLWC. Six input parameters, such as cement, UFGGBS as cement replacement, lightweight wood ash pellets as coarse aggregate, fine aggregate, water content, and superplasticizer, were used to train the model. The 28-day compressive strength was taken as an output parameter. A total of 384 data was collected from 24 sLWC mixes, each containing 16 specimens, and trained in an artificial neural network (ANN) using a feedforward-backpropagation model. Trained data were validated with a set of tested data. The correlation coefficient R2 values for trained and tested data were 0.932 and 0.917, respectively, with least errors. The study concluded that ANN was a reliable and fast tool for predicting the compressive strength of sLWC. It also efficiently reduced cost and time.

Fresh, Strength and Durability Characteristics of Binary and Ternary Blended Self Compacting Concrete

Paper Mineral admixtures being the economical alternatives to Ordinary Portland Cement (OPC) for various normal and special concretes induce desirable properties to concrete such as higher flow, low heat of hydration, higher strength gain and enhanced durability. Ground granulated blast furnace slag(GGBFS) being one of the largely used mineral admixture alongside Fly Ash as supplementary cementitious material in concrete contributes to enhanced durability properties and low heat of hydration. Various replacement percentages of GGBS at 30%, 40%, 50% and 60% are used in binary blended Self compacting concrete(SCC) in the present study. At 40% replacement level, SCC exhibited improved workability, strength and durability properties. Alccofine(Ultrafine GGBS) used in ternary blended SCC enhanced early strength gain without affecting workability of SCC to a significant extent.