Effect of Alccofine and Foundry Slag on Compressive Strength of High Strength Concrete

Gupta, Saurabh; Kumar, Ashok; Sharma, Sanjay; Sharma, Devinder

doi:10.5958/2319-6890.2017.00048.4

Cited by 4 publications

(5 citation statements)

References 3 publications

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“…In all tables mentioned above, adding GP leads to improve the compressive, tensile and flexural strength, adding 25% (replacing) improve compressive strength from 34.7 to 43.3 MPa, the increment is about 24.8%, and by adding 75% GP, the compressive rise to 70.22 MPa, the increment is 102% and this is very high increment as shown in Figure 7, this can be attributed to properties of GP-Grout powder itself that have the excellent values of compressive strength for its gel (of about 65 MPa in 28 days) without superplasticizers and this is because of GP chemical composition that contains very fine silica with very fine cement or high strength cement [11,12], the flexural strength increased from 3.17 to 5.76 MPa and this is a good improvement as shown in Figure 8 and also tensile strength increased from 2.7 to 4.0 MPa as shown in Figure 9. Gupta et al stated that the bond between cementitious materials is essential in many applications and they recognized it must measure the bond strength according to specific standard [13].…”

Section: Discussion the Effect Of Adding Gp-grout Onlymentioning

confidence: 94%

Engineering Properties of Concrete Based on GP-Grout with Steel Nails

Shubber

Mezher

Breesem

2021

MSF

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Portland cement-based grouting compound is called GP-Grout employed to produce a sort concrete as a replacement from the weight of cement in mixes and strengthened with steel nails to enhance the mechanical properties. GP-Grout replaced cement by 25%, 50% and 75% while the steel nails as locally steel fibres were used with 0.25%, 0.5%, 1%, 2 % and 3% by volume of concrete. GP-Grout powder enhanced mechanical properties of ordinary concrete especially; the compressive strength by increasing from 34 to 70 MPa as well as other properties including tensile and flexural strength with clear improvement by adding the steel nails at a ratio of 3% by volume and the results were 5.67, 9.81 MPa respectively.

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Section: Discussion the Effect Of Adding Gp-grout Onlymentioning

confidence: 94%

Engineering Properties of Concrete Based on GP-Grout with Steel Nails

Shubber

Mezher

Breesem

2021

MSF

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“…After exposure to harsh temperatures, the ratio of 30% MK produced the highest strength; it enhanced the compressive, splitting, and flexural strengths at age 180 days by 62%, 47%, and 54%, respectively. JAUES, 18,67,2023 For increasing concrete strength, Aquis Na2SiO3 is the higher activator for MK. When compared by Na2SO4 activator and Aquis Na2SiO3, the compressive strength for AMK, (30% mix) activated with Na2SO4 is lower by 13% and 12% at 3 and 7 days, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…It is used in concrete to increase the numbers of fines, achieve self-compatibility, and improve fresh and hardened concrete qualities because of its distinctive chemistry and ultrafine particle size. AF offers a high-range water reducer with up to a 70% replacement ratio, which enhances the strength and workability of concrete [16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…Using AF as a mineral additive boosted concrete's strength, decreased the water/cement ratio, and improved workability [18]. The substitute level of cement by 10% AF increased compressive and flexural strength of concrete at all curing ages to an enormous extent [18]. The strength increased rapidly at early ages; latterly, it increased gradually.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Metakaolin Activation and Alccofine on the Mechanical Strength of Concrete at Elevated Temperature

Aziz

2023

Journal of Al-Azhar University Engineering Sector

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This research examines the possibility of chemically activating MK (Metakaolin) to increase the MK ratio with strength improvement at both standard and elevated temperatures. Besides, cement was replaced by AF (Alccofine) with a ratio of up to 15 % to improve concrete workability and strength. MK was tested with ratios ranging from 0% to 30%, with a 5% increase. MK was activated chemically using two activators: 2.5% Na2SO4 and 4% Aquis Na2SiO3. AF was investigated at 5%, 10%, and 15% ratios. 0.7% glass fibres (GF) were added to improve concrete ductility. According to the results of the tests, MK. up to a ratio of 15% without an activator improved concrete strength. After 28 days, the increase in strength was more pronounced. After the 15% ratio, the concrete strength improvement was rapidly declined. The Aquis Na2SiO3 activator increased the strength of the concrete while diminishing its workability. AF improved workability and concrete strength when subjected to normal and after being exposed to elevated temperatures. Using GF at a weight ratio of 0.7% on activated 30% MK with Aquis Na2SiO3 and 10% AF improved splitting and flexural strength at normal and increased temperatures Furthermore, GF avoided the spalling of concrete samples induced by the application of AF. Correlations between different mechanical parameters of concrete using multiple regression analysis. A good agreement between the predicted equations' outputs and the experimental results for compressive, splitting, and flexural strengths. Further, a cost analysis was conducted for the suggested mix by comparing it with a high-strength concrete mix of the same grade, and workability.

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“…And yet, the quality of concrete produced with a certain percentage of vitreous components is unaltered [36]. Adding SS aggregate to concrete can enhance its compressive strength by up to 20% [37]. Steel slag aggregate has a higher angularity than natural aggregate, contributing to better mechanical interlock with cement paste.…”

Section: Steel Slag Aggregatementioning

confidence: 99%

A Review of Steel Slag as a Substitute for Natural Aggregate Applied to Concrete Columns

Ali,

Abdul-Hameed

2024

J. eng. sustain. dev.

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There are severe ecological imbalances from both carbon emissions and sand mining. Steel slag can be used as an aggregate in concrete to enhance the environment and conserve natural resources because of the impact of depleting resources. The paper's main aim is to investigate the appropriateness of steel slag as an aggregate substitute and determine its impact on the behavior and durability properties of columns subjected to various circumstances and loads. After discussing slag and its properties, its effects on plain concrete were reviewed, followed by its effects on concrete columns. Previous studies indicate that columns made with steel slag aggregate concrete have comparable initial stiffness, strength, and flexibility as regular concrete. For columns with fine steel slag aggregates, the conventional section design approach can be used as an option for the design method. The European standard for stub columns filled with steel slag aggregate concrete under compression is more accurate than the American standard, which is circumspect.

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Effect of Alccofine and Foundry Slag on Compressive Strength of High Strength Concrete

Cited by 4 publications

References 3 publications

Engineering Properties of Concrete Based on GP-Grout with Steel Nails

Engineering Properties of Concrete Based on GP-Grout with Steel Nails

Effect of Metakaolin Activation and Alccofine on the Mechanical Strength of Concrete at Elevated Temperature

A Review of Steel Slag as a Substitute for Natural Aggregate Applied to Concrete Columns

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