PDF A Study on Partial Replacement of Cement With Ggbs in Concrete

concluded in their project that ground granulated blast furnace slag is better replacement of cement than various other alternatives. The rateof strength gain in slag replaced concrete is slow in early stages but with proper curing the strength goes on increasing tremendously. The compressive strength decreases when the cement

Learn More

Review on Ground Granulated Blast-Furnace Slag as a

that the maximum strength result of the concrete after 7days and 28 days curing is with the 20% replacement of the cement by GGBS.From the works review it has been found that the GGBS takes more time to react with the water, hence the early strength gained by the Concrete with GGBS is less than the concrete with no replacement.

Learn More

High Strength Concrete Incorporating Ground Granulated

Index Terms—ground granulated blast furnace slag, steel fiber, durability, high strength . I. INTRODUCTION. Concrete is the most widely used construction material due to its high and early compressive strength and low cost. It is the backbone of infrastructural development of whole world. But it is very brittle due to weak tension,

Learn More

Sulapha Peethamparan | Clarkson University

Min-Hong Zhang, Jahidul Islam and Peethamparan, S., "Use of Nano-Silica to Increase Early Strength and Reduce Setting Time of Concretes with High Volumes of Slag", Cement and Concrete Composite, 34, ( ), 650-662

Learn More

Heat of hydration and mechanical properties of mass

This paper examines how the high-volume replacement of ground granulated blast furnace slag (GGBFS), one of the most widely used mineral admixtures for concrete production, affects the mechanical and heat of hydration characteristics of concrete through both laboratory and mock-up tests. Mechanical properties such as compressive strength, splitting tensile strength, and elastic modulus, as

Learn More

High-volume ground granulated blast furnace slag (GGBFS

Güneyisi and Gesoğlu ( ) studied 0, 50, 60, 70 and 80% replacement rates of GGBFS in concretes and showed the changes of compressive strengths in accordance with the concrete's age and curing conditions. The compressive strength values of the control concretes are between 50.6 and 63.1 MPa and compressive strength values of the GGBFS concretes are between 27.9 and 66.2 MPa as shown in Fig

Learn More

High-Performance, High-Volume Fly Ash Concrete for

To enhance the compressive strength of very high-volume SCM concrete at an early age, the unit water content was controlled to be less than 150 kg/m 3 , and a specially modified polycarboxylate-based water-reducing agent was added.

Learn More

Using Fly Ash in Concrete - National Precast Concrete

This will increase the long-term strength of the concrete at a cost of slightly lower early strength. It is hard to give a precise strength estimate without knowing the details of your mix. However, high-quality fly ash will typically result in higher long-term strengths when used in addition to Portland Cement.

Learn More

PDF Effect of Replacement of Cement by Different Pozzolanic

Strength of High Performance Concrete and concluded that 20% of Fly Ash and10% of Silica Fume displayed the minimum water penetration depth of 15mm and11mmrespectively. 10% Fly ash and 7.5% Silica fume replacement gave maximum split tensile strength, maximum compressive strength in addition to maximum flexural tensile strength.

Learn More

Experimental Study on Flexural Behavior of High-Strength

E. Ground Granulated Blast Furnace Slag GGBS is used as a direct replacement in the basic weight of cement. Replacement levels for GGBS varies from 30% to 80%. In most instances of GGBS use 40% to 50%. F. Water The acceptability of water for high-strength concrete is not required major content. Water is lubricating the concrete mix.

Learn More

PDF Effects of Ground Granulated Blast Furnace Slag in

decreased initial compressive and tensile strength compared to OPC concrete. However, by 14 days, the grade 120 slag cement concrete strength equaled or surpassed that of OPC concrete. Compared to OPC concrete, the time to reach 3000psi traffic opening strength was delayed by 1 to 2 days for 30% replacement and by 3 to 4 days for 50% replacement.

Learn More

Preparation and Properties of Alkali-Activated Ground

28 days. Early strength of alkali-activated GGBFS concrete developed quickly. Compressive strength of specimens at 3 days and 7days is about 80% and 90% or more of that at 28 days, respectively. Compressive strength of concrete with graphite aggregates is lower than that without graphite aggregates at the same age.

Learn More

PDF Mat-745: the Effect of Ground Granulated Blast Furnace

High-performance concrete typically has a low water to cementing materials ratio (w/cm), high binder content and may contain high levels of supplementary cementitious materials. The effects of ground granulated blast furnace slag (GGBFS) and silica fume (SF) on the durability of HPC were investigated. In this study, HPC mixtures at 0.33

Learn More

The analysis of Taupo pumice as an effective replacement

Round Three assessed the use of high pH mix water (pH=12.9), and Round Four assessed the use of a polycarboxylate superplasticiser, both with 10% pumice. Pumice is known to retard early concrete strength, however through optimisation of mix design, improvements in concrete strength and durability can be made. Indeed, all 28 day

Learn More

Study on properties of concrete by partially replacing

2 Utilization of Ground Granulated Blast Furnace Slag to Improve Properties of Concrete Magandeep, Ravi Kant Pareek and Varinder Singh International Journal on Emerging Technologies, Vol. 6, Issue 2, , pp. 72-79, e-ISSN: 2249- 3255, [Aug. ] Compressive strength and flexural strength decreases as the percentage of GGBFS increases at the age

Learn More

Properties of Hardened Concrete with Blast Furnace Slag

Furthermore, low early strength achievement of slag concrete can be tackled by inclusion silica fume. The improvement of early age strength development depends on the amount of utilized fume. Lastly, Figure-3 illustrates the compressive strength development for controlled concrete and concrete replacement with different percent of slag.

Learn More

PDF Response Characteristics of High Strength Steel and

The greater fineness leads to an advance in the early age strength of the concrete, as an increase in the surface area gives a greater contact with the water and hence more rapid hydration. It is possible to achieve high compressive strengths using fly ash (PFA) or ground granulated blast furnace slag (GGBFS) as the supplementary cementing

Learn More

605 - Contractor Quality Assurance for Concrete - MediaWiki

Concrete mixtures containing fly ash or ground granulated blast furnace slag (GGBFS) have been known to generate strength properties comparable to standard concrete mixtures. Therefore, an MDOT grade concrete mixture containing fly ash or GGBFS would be covered by the quality assurance specifications as a critical concrete QA item, subject to

Learn More

GGBFS Replacement for High Early Strength Concrete for

It becomes a challenge to reduce costs, while maintaining the high early strength, durability, workability, and environmental soundness. In the investigation work presented in this paper, mix design was developed with 25 per cent replacement of OPC with fine

Learn More

Slag | Cement Australia

Similar to fly ash blends, early age strength development of slag blends is slower than straight cement concrete however strength development from 28 days onwards is equivalent or better. In NSW, Cement Australia markets GGBFS under the brand Ecocem. Safety Data Sheet. CASDS04 Ground Granulated Blast Furnace Slag.

Learn More

The effect of attack of chloride and sulphate on ground

replacement of cement by GGBFS for 20% and then gradually decreases with increases in percentage of GGBFS with cement (as in the study for 40% and 60%). Also there is increase in strength of GGBFS concrete with increase in age. Thus the durability of concrete improves when GGBFS is added as partial replacement of cement.

Learn More

PDF A Review on Strength Properties of Concrete with Partial

strength of OPC concrete shows higher strength as compare to the GGBFS based concrete for all percent replacement and at all ages. Incorporating 40% GGBFS is highly significant to increase the compressive strength of concrete after 56 days than the 20 and 60% replacement. Among GGBFS based concrete 40% replacement is found

Learn More

PDF Investigation on Durability Performance in Early Aged High

Investigation on Durability Performance in Early Aged High-Performance Concrete Containing GGBFS and FA interact and to develop strength—either physically (inter-locked growth) or chemically (e.g., van-der-Waals attrac- with the replacement of GGBFS and FA in different????/????

Learn More

Masonry and Cement Products Buying Guide - Lowe's

High-Strength Concrete Preblended combination of cement, sand, gravel and additives Special additives provide high, early strength Mix achieves 5000-PSI strength within 28 days Use for applications greater than 2-in thick Good choice when high, early strength is required, for cold weather pouring or as a base for heavy objects or equipment Sets

Learn More

STUDY ON PARTIAL REPLACEMENT OF CEMENT BY

review. Partial replacement of cement by Ground Granulated Blast Furnace Slag (GGBS) and addition of Carbon Fiber to the concrete to find their properties, strength and behavior. 3. MATERIALS TO BE USED 3.1 CEMENT Cement is a binder, a substance used for construction that sets, hardens, and adheres to other materials to bind them together.

Learn More

What is the advantage of using GGBS as replacement of

From structural point of view, GGBS replacement enhances lower heat of hydration, higher durability and higher resistance to sulphate and chloride attack when compared with normal ordinary concrete. On the other hand, it also contributes to environmental protection because it minimizes the use of cement during the production of concrete. However, it is identified that []

Learn More

Leave a Reply

Your email address will not be published. Required fields are marked *