ggbfs replacement for high early strength concrete for

GGBFS Replacement for High Early Strength Concrete for ...

GGBFS Replacement for High Early Strength Concrete for Precast Industry Shivaprakash G , M-Tech Structure, Sr. Manager, Admixture and Surface Treatment, Fosroc Chemicals The initial capital cost for precast construction is higher than for conventional concrete.

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GGBFS Replacement for High Early Strength Concrete for ...

The Precast Concrete industry is one of the thriving industries in the wake of faster development with high quality standards. The initial capital cost for precast construction is higher than for conventional concrete. The chief requirement

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Sustainable Studies on Concrete with GGBS As a Replacement ...

ground granulated blast furnace slag for M35 grade of concrete at different ages. From this study, it can be concluded that, since the grain size of GGBS is less than that of ordinary Portland cement, its strength at early ages is low, but it continues to gain strength over a long period. The optimum GGBFS replacement

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Slag waste incorporation in high early strength concrete ...

Jan 20, 2018  The high early strength cement is responsible for high strength at the early ages of hydration. This is why, high strength during the early age of ‘H’ series concrete is achieved. Although the strength depreciated with GGBS addition, the results at 30% replacement of cement with GGBS are very encouraging for application in precast industry.

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Effect of GGBFS on setting, workability and early strength ...

Sep 15, 2014  Concrete and mortar samples cured without heat developed strength gradually over the age, while samples cured in 60 °C for 1 day achieved high early strength which increased negligibly over the age. Microscopic images of slag blended fly ash geopolymer revealed mostly amorphous and calcium-containing hydration product.

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Sustainable Studies on Concrete with GGBS As a

ground granulated blast furnace slag for M35 grade of concrete at different ages. From this study, it can be concluded that, since the grain size of GGBS is less than that of ordinary Portland cement, its strength at early ages is low, but it continues to gain strength over a long period. The optimum GGBFS replacement

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GGBS - Ground Granulated Blast Furnace Slag for Concrete!

Oct 07, 2019  For concreting of on the ground concrete structures with high early-age strength is required than the GGBFS replacement ratio would usually be 20 to 30%. For concreting of the underground concrete structures where any average strength is required the GGBFS replacement ratio would usually be 30 to 50%.

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Study and Analysis of Strength of GGBS Concrete

containing GGBS up to 100% can achieve high early-age strength. GGBS concrete gains more strength than the PC concrete after the age of 28 day till 90 day. The mechanical properties of blended concrete for various levels of cement replacement have been observed as higher than control concrete mix having no GGBS.

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Strength development characteristics of concrete produced ...

be partially replaced with ground granulated blast furnace slag (GGBS). In this research effect of partial replacement of cement with GGBS on strength development of concrete and cured under summer and winter curing environments is established. Three levels of cement substitution i.e., 30%, 40% and 50% have been selected.

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AN EXPERIMENTAL INVESTIGATION ON PARTIAL

Chart-1:compressive strength of concrete in N/mm2 Fig 6.2 Split tensile strength of concrete in N/mm2 Chart-2: Split tensile strength of concrete in N/mm2 7.CONCLUSION The use of GGBFS in concrete as part of cement with master set AC 100 improves the properties of concrete. The workability of concrete is increased by partial replacement of GGBFS.

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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,

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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.

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A STUDY OF MEASURED AND PREDICTED EARLY AGE IN-SITU ...

The early age strength of concrete influences project duration through its effect on the minimum striking time of formwork. Accurate assessment of early age strength is a prerequisite to making a decision for striking formwork at optimal timings, especially for GGBS concretes.

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How to Develop High-Early-Strength Concrete? [PDF] - The ...

The combination of ground granulated blast furnace slag and higher curing temperature leads to the increase of high early strength development of concrete. 7. Steam or Autoclave Curing. The steam or autoclave curing is an effective way of high-early-strength concrete production. The concrete compressive strength achieved under autoclave in 24 ...

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Determining physico-chemical parameters for high strength ...

Jul 09, 2021  High temperature (60–80 °C) curing treatment of AAF is a severe limitation for cast-in-situ concrete application. Alternatively, ground granulated blast furnace slag (GGBS) is used for early setting due to its latent hydraulic property [2,3].

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GGBS: The Most Effective SCM For Concrete Concrete Show Blog

Conclusion. For producing durable, sustainable and economic concrete, it is necessary to use low w/b ratio in concrete mix and also use secondary cementitious materials as part replacement to cement. Of the various SCMs, replacement of cement by GGBS is permitted to a maximum of 70%. Thus, it helps in producing sustainable concrete.

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Heat of hydration and mechanical properties of mass ...

Dec 18, 2017  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

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GGBFS – Super Cement

GGBFS concrete gains strength more steadily than equivalent concrete made with Portland cement. For the same 28 days’ strength, GGBFS concrete has lower strength at early ages but in the long term its strength is greater. The table shows the strength gained by three different mixes of concrete.

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Uses of GGBS - CSMA - The Cementitious Slag Makers Association

In the production of ready-mixed concrete, GGBS replaces a substantial portion of the Portland cement component, generally about 50%, but sometimes up to 70%. The higher the proportion, the better is the durability. The disadvantage of the higher replacement level is that early-age strength development is somewhat slower. Other forms of concrete

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Strength and Durability Studies on GGBS Concrete

studied. The compressive 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 ...

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HIGH STRENGTH CONCRETE USING GGBS AND NANO TIO

High strength concrete is a concrete mixture, which possess high durability and high strength when compared to conventional concrete. This concrete contains one or more of cementitious materials such as fly ash, Silica fume or ground granulated blast furnace slag and super plasticizer.

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Experimental Analysis of Partial Replacement of Cement by ...

May 30, 2018  Compressive strength of Cubes and Cylinder on 7th ,14th , 28th days were tested.After 7 days test , the strength of concrete fradually increases for 14th days and 28th days test. Flextural strength on beams on 7Th,14th,28th days were tested.In general the early strength is decrease with increase of GGBS content.

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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.

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Fast Track Construction with High-Strength Concrete Mixes ...

Jun 01, 2005  The early age strength development of concretes containing ground granulated blast furnace slag (ggbs) at cement replacement levels of 20, 35, 50 and 70% have been investigated to give guidance for their use in fast track construction. 28-day target

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STUDY ON MAGNESIUM SILICATE HYDRATE CEMENT

Ground Granulated blast furnace slag (GGBFS) for M30 mixtures of concrete to obtain the optimum percentage of replacement of M-S-H cement in concrete. The main objective is tostudy the effect of M-S H concrete by workability and compressive strength of concrete at the age of 7, 14 and 28 days. 3. MATERIAL PROPERTIES

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(PDF) The effect of chemical activators on early strength ...

The use of GGBFS as cement replacement in mortar and concrete is a common practice due to the technological and environmental benefits. Replacement of clinker by slag, not only offers energy savings and cost reduction compared to ordinary Portland cement (OPC), but also other advantages such as a lower heat of hydration, high sulfate and acid ...

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Design and Manufacture of High Performance Concrete by ...

increased the strength development of the concrete at early ages. [5] In the present investigation Ground Granulated Blast Furnace Slag (GGBS) is used as replacement to cement by weight. The GGBS is used as partial replacement for cement in the concrete mix with particles in the range of 125-

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How to Develop High-Early-Strength Concrete? [PDF] - The ...

The combination of ground granulated blast furnace slag and higher curing temperature leads to the increase of high early strength development of concrete. 7. Steam or Autoclave Curing. The steam or autoclave curing is an effective way of high-early-strength concrete production. The concrete compressive strength achieved under autoclave in 24 ...

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SECTION 704—CEMENT CONCRETE

The concrete design submitted for review is required to comply with the specified concrete class requirements, supported by slump, air content, and compressive strength test data according to ACI 211. The Department will accept concrete designs on the basis of the 7-day strength tests (Class High Early Strength

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Determining physico-chemical parameters for high strength ...

Jul 09, 2021  High temperature (60–80 °C) curing treatment of AAF is a severe limitation for cast-in-situ concrete application. Alternatively, ground granulated blast furnace slag (GGBS) is used for early setting due to its latent hydraulic property [2,3].

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Technical and economical feasibility of using GGBS in long ...

3. Concrete mixes and strength test . In this project, the following concrete mixes were developed to investigate the effect of partial replacement of CEM I with GGBS on the compressive strength of concrete: 0%GGBS, total binder content: 398 kg/m3 15%GGBS, total binder content: 398 kg/m3 330%GGBS, total binder content: 398 kg/m

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Use of Blast Furnace Slag Aggregate in Concrete

ground granulated blast furnace slag (GGBS) in China. GGBS concrete is characterized by high strength, lower heat of hydration, and resistance to chemical corrosion. They used GGBFS in High-Strength HPC with different fineness level and through the result table we can see effects on workability and strength of concrete. It

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Fly Ash or GGBFS

Oct 22, 2016  The typical replacement range of fly ash is between 20% to 40% and for GGBFS is between 30% to 80%, the use of higher than 40% of fly ash results in a significant impact on concrete strength

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