An experimental investigation for replacements of river sand and cement with Robosand, fly-ash and silica fume in concrete to evaluate the influence in durability properties

Alla, Suseela; Jayaram, M. A.; Asadi, S.S.

doi:10.1016/j.matpr.2020.07.340

Cited by 7 publications

(3 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly, mixes from M7 to M12 containing the same variation of M sand with the replacement of 5% silica Fume in cement content decrease the slump value from 82mm to 70. The presence of both M sand and Silica Fume reduces the slump value of the concrete and it requires more water content at the initial stage of concrete so, a superplasticizer is suggested to maintain workability [16]. The fineness of M sand and Silica Fume fills the voids between which led to increases in the strength of the concrete.…”

Section: Resultsmentioning

confidence: 99%

“…The specimen is then set on a flat surface, a steel plate with a 150mm diameter is set on top of the specimen, and the load at which the specimen fractures is noted as the concrete's compressive strength. Until the specimen is split in half, a compressive load of 0.7 N/mm2/min is given to the steel plate [16,17,18]. The concrete's split tensile strength is measured as the load at which the specimen splits [19].…”

Section: Expeimmental Procudurementioning

confidence: 99%

See 1 more Smart Citation

Investigating the effect of Manufactured sand and Silica Fume on the properties of Concrete

Chowdary,

Mahajan,

Jaggi

2023

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

In the present era, concrete is one of the most commonly used construction materials worldwide. Consequently, the demand for natural river sand is increasing. Since the mining of natural sand has already been outlawed by the government in many regions, now it is essential to look into sustainable materials to control natural sand extraction. Hence, manufactured sand (MS) has been shown in numerous studies to be a more practical and environmentally responsible alternative to river sand (RS), which is normally used in the production of concrete. At the same time, the cement industry produces tons of greenhouse gases into the atmosphere, affecting atmospheric conditions. Now, it’s time to look into a suitable replacement material for cement. To investigate the feasibility of using manufactured sand & silica fume in place of river sand and cement under normal climatic conditions fresh, mechanical and durability properties were conducted in the laboratory. Twelve samples of M30 grade cubes and cylinders at desired M sand percentages of 0, 20, 40, 60, 80, and 100 & 0% and 5% variation of silica fume with cement are included in this study as a comparison to the control mix. After 28 days of water curing, a random variation in the properties of concrete was observed in the samples. In this experimental study, SF represents Silica Fume, MS represents manufactured sand, RS represents river sand, FA represents Fine aggregates and CA represents Coarse aggregates.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Expeimmental Procudurementioning

confidence: 99%

Investigating the effect of Manufactured sand and Silica Fume on the properties of Concrete

Chowdary,

Mahajan,

Jaggi

2023

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…Te cement production processes use a large volume of raw materials and energy, and a signifcant amount of carbon dioxide is released into the atmosphere. According to the type of fuel used, about 0.9-1.0 metric tonnes of CO 2 are released into the atmosphere for every tonne of clinker; if the amount of cement used is reduced, CO 2 emissions will also be reduced [2].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Mechanical and Durability Properties of Eco-Friendly Concrete Containing Silica Fume, Waste Glass Powder, and Ground Granulated Blast Furnace Slag

Bameri¹,

Rashidi

Mohammadhasani³

et al. 2022

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

By considering the adverse environmental impacts of the cement manufacturing process, there have been many efforts for cement replacement by supplementary cementitious materials (SCMs), which can enhance the produced concrete performance while reducing cement consumption. This study evaluated the effects of various proportions of silica fume (SF), waste glass powder (WGP), and ground granulated blast furnace slag (GGBFS) on the mechanical and durability properties of concrete. The properties evaluated in this study include compressive, tensile, and flexural strength, magnesium sulfate and sulfuric acid attack, surface resistivity, rapid chloride penetrability test (RCPT), water absorption, depth of penetration of water, and microstructure analysis by scanning electron microscopy (SEM). The results of compressive, tensile, and flexural strength, chloride ion penetrability, and water absorption tests showed that adding 5% of SF to mixtures containing 10% WGP or 10% GGBFS improved concrete performance significantly due to packing density and synergistic effect; however, adding 5% of SF to concrete mixtures decreased the resistance against the magnesium sulfate and sulfuric acid attack. The binary mixture of 15% of WGP showed appropriate performance against the magnesium sulfate and sulfuric acid attack, which may be due to the sacrificial nature of WGP. In addition, the binary mixtures of 15% of WGP and 15% of GGBFS reduced the depth of penetration of water by 45%. Microstructure analysis by SEM showed that the presence of SF, along with WGP and GGBFS, improves the packing density. Finally, adding 5% of SF is suggested to improve the properties of concrete mixtures containing WGP and GGBFS.

show abstract

Sustainable use of silica fume in green cement concrete production: a review

Chishi,

Gautam

2023

Innov. Infrastruct. Solut.

View full text Add to dashboard Cite

An experimental investigation for replacements of river sand and cement with Robosand, fly-ash and silica fume in concrete to evaluate the influence in durability properties

Cited by 7 publications

References 12 publications

Investigating the effect of Manufactured sand and Silica Fume on the properties of Concrete

Investigating the effect of Manufactured sand and Silica Fume on the properties of Concrete

Evaluation of Mechanical and Durability Properties of Eco-Friendly Concrete Containing Silica Fume, Waste Glass Powder, and Ground Granulated Blast Furnace Slag

Sustainable use of silica fume in green cement concrete production: a review

Contact Info

Product

Resources

About