Effect of Silica Fume and Super-Plasticizer on Mechanical Properties of Self-Compacting Concrete: A Review

Frhaan, Waseem Khairi Mosleh; Bakar, Hisham Badorul Abu; Hilal, Nahla; Al‐Hadithi, Abdulkader Ismail

doi:10.1088/1757-899x/978/1/012052

Cited by 6 publications

(3 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Second, the application of the chemical admixture known as the super-plasticizer (SP) to reduce water content, enhance cohesiveness, and enhance SCC passage and filling properties. On the other hand, SF can affect the physical characteristics of SCC if it is utilized excessively in cement [11]. Three fundamental criteria, including segregation resistance, passing ability, and filling ability, must be met by the SCC.…”

Section: Introductionmentioning

confidence: 99%

Investigating the properties of ternary-blended self-compacting concrete with fibre

Muthaiyan

2024

Matéria (Rio J.)

View full text Add to dashboard Cite

Self-Compacting Concrete (SCC) is the designation for concrete that flows under its own weight. By creating or introducing SCC, the flow ability of ordinary concrete can be enhanced. This study's primary focus is on the creation of SCC utilizing ternary blends of cementitious additives. Several tests were carried out to assess the SCC's mechanical, fresh, and durability characteristics. Energy Dispersive X-ray Analysis (EDAX) and Scanning Electron Microscope (SEM) were used to examine micro level characteristics. The mechanical and durability qualities of SCC have been improved by using a ternary blended SCC mix that contains seventy percentage of Ordinary Portland Cement, twenty percentage of Fly Ash, and ten percentage of Silica Fume. The workability of fresh concrete got reduced by increasing the fly ash, silica fume and glass fibre content that can be improved by adding super plasticizer. The strength and durability performance of hardened concrete were increases with increase in fly ash, silica fume and glass fibre in conventional concrete. The glass fiber reinforced SCC mixes with 0.4 and 0.6% of GF have a strong connection with the cement matrix, as shown by SEM pictures. As fiber dosage is increased, peak load of ternary mixed SCC increases significantly.

show abstract

Section: Introductionmentioning

confidence: 99%

Investigating the properties of ternary-blended self-compacting concrete with fibre

Muthaiyan

2024

Matéria (Rio J.)

View full text Add to dashboard Cite

show abstract

“…Silica fume has been utilized at 5-10% dosages to enhance particle packing density, cohesiveness, and later-age strength development in SCC. However, higher additions can impair workability [16]. Ground granulated blast furnace slag has demonstrated the ability to maintain good rheology at replacement levels up to 50-60% while enhancing strength and durability via its latent hydraulic behavior [17].…”

Section: Introductionmentioning

confidence: 99%

Effect of Mineral Admixtures and Curing Regimes on Properties of Self-Compacting Concrete

Chava,

M.v.,

Munugala

et al. 2024

Journal of Sustainable Construction Materials and Technologies

View full text Add to dashboard Cite

This study investigated the influence of mineral admixtures (fly ash, silica fume, metakaolin) and curing conditions (water immersion, polyethylene glycol, gunny bags, accelerated curing) on the properties of self-compacting concrete (SCC). The rheological properties, compressive strength, chloride penetration resistance, and microstructure were evaluated. Incorporating mineral admixtures improved the workability, strength (up to 53% increase), and durability of SCC compared to plain mixes, with 20% metakaolin replacement being optimal. Water immersion curing enhanced the compressive strength (3-15% increase) and chloride resistance (up to 30% decrease in migration coefficient) owing to improved hydration and microstructural refinement. Mineral admixtures reduced the sensitivity of SCC to curing method. Microstructural analysis showed higher density and additional C-S-H phases with mineral admixtures under wet curing. The study demonstrates that optimized SCC containing appropriate supplementary cementitious materials coupled with proper external curing can achieve high performance.

show abstract

“…The selection and combination of these materials in the concrete mix are crucial due to their high fluidity and the need to reduce viscosity, which can be achieved by using chemical admixtures like superplasticizers and mineral admixtures like silica fume. Numerous researchers have attested that the use of both chemical and mineral admixtures results in superior properties for fresh and hardened concrete [9][10][11][12][13]. Superplasticizers, as chemical admixtures, have become essential in concrete production as they significantly improve the mechanical properties and reduce cement usage [13].…”

Section: Introductionmentioning

confidence: 99%

Atomistic Insight on Effect of Silica Fume on Intermolecular Interactions between Poly(carboxylate) Superplasticizer and Calcium Ions in Concrete

Rakhimbayev,

Mukashev,

Kusherova

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

Understanding how poly(carboxylate)s of chemical admixtures interact with calcium ions in cement pore solutions in the presence of silica fume is fundamental to developing better chemical admixtures for concrete production. In this work, the intermolecular interactions of calcium ions with a poly(carboxylate) superplasticizer type of chemical admixture was investigated via classical all-atom molecular dynamics (MD) simulations and Density Functional Theory (DFT) calculation methods in the presence of silica fume. The classical all-atom MD simulation and DFT calculation results indicate that calcium ions are interacting with oxygen atoms of the carboxylate group of PCE. The better interaction energy could mean an improved adsorption of the PCE segment with calcium ions. In this regard, it can be noted that the ester-based PCE segment could have a better adsorption onto calcium ions in comparison with the ether-based PCE segment. Moreover, the presence of silicon dioxide could improve the adsorption of the PCE segment onto calcium ions.

show abstract

Effect of Silica Fume and Super-Plasticizer on Mechanical Properties of Self-Compacting Concrete: A Review

Cited by 6 publications

References 19 publications

Investigating the properties of ternary-blended self-compacting concrete with fibre

Investigating the properties of ternary-blended self-compacting concrete with fibre

Effect of Mineral Admixtures and Curing Regimes on Properties of Self-Compacting Concrete

Atomistic Insight on Effect of Silica Fume on Intermolecular Interactions between Poly(carboxylate) Superplasticizer and Calcium Ions in Concrete

Contact Info

Product

Resources

About