Mechanical and durability properties of self-compacting concrete with marble fine aggregate

Waste tire disposal continues to pose a threat to the environment due to its non-biodegradable nature. Therefore, some means of managing waste tires include grinding them to crumb rubber (CR) sizes and using them as a partial replacement to fine aggregate in concrete. However, the use of CR has a series of advantages, but its major disadvantage is strength reduction. This leads to the utilization of calcium carbide waste (CCW) to mitigate the negative effect of CR in self-compacting concrete (SCC). This study investigates the durability properties of SCC containing CR modified using fly ash and CCW. The durability properties considered are water absorption, acid attack, salt resistance, and elevated temperature of the mixes. The experiment was conducted for mixes with no-fly ash content and their replica mixes containing fly ash to replace 40% of the cement. In the mixes, CR was used to partially replace fine aggregate in proportions of 0%, 10%, and 20% by volume, and CCW was used as a partial replacement to cement at 0%, 5%, and 10% by volume. The results indicate that the mixes containing fly ash had higher resistance to acid (H2SO4) and salt (MgSO4), with up to 23% resistance observed when compared to the mix containing no fly ash. In addition, resistance to acid attack decreased with the increase in the replacement of fine aggregate with CR. The same principle applied to the salt attack scenario, although the rate was more rapid with the acid than the salt. The results obtained from heating indicate that the weight loss was reduced slightly with the increase in CCW, and was increased with the increase in CR and temperature. Similarly, the compressive strength was observed to slightly increase at room temperature (27 °C) and the greatest loss in compressive strength was observed between the temperature of 300 and 400 °C. However, highest water absorption, of 2.83%, was observed in the mix containing 20% CR, and 0% CCW, while the lowest water absorption, of 1.68%, was found in the mix with 0% CR, 40% fly ash, and 10% CCW. In conclusion, fly ash is recommended for concrete structures immersed in water, acid, or salt in sulphate- and magnesium-prone areas; conversely, fly ash and CR reduce the resistance of SCC to heat beyond 200 °C.

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Durability Properties of Self Compacting Concrete by using M-Sand as Fine Aggregate

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.c6464.098319 ◽

2019 ◽

Vol 8 (3) ◽

pp. 8354-8358

Keyword(s):

Fine Aggregate ◽

Self Compacting Concrete ◽

River Sand ◽

Natural Sand ◽

Manufactured Sand ◽

Durability Properties ◽

Fine Aggregates ◽

Alternative Material ◽

Chloride Attack ◽

Level Constant

Self-compacting concrete is also called as self consolidated concrete which does not require vibration for placing and compaction. In the present trend scarcity of natural sand become a huge problem to construction industry, inorder to reduce this problem alternatives are used, one of the alternative material is Manufactured sand. Manufactured sand is produced from hard granite stone by crushing. There are two reasons to M-sand i.e, availability & transportation. An attempt was made to evaluate the workability and strength characteristics & durability properties of self compacting concrete with river sand and manufactured sand as fine aggregates. For each replacement level, constant workability was maintained by varying the dosage of superplasticizer. Sulphate attack and chloride attack of the specimens were determined. Different proportions of solution are used for durability study.

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The Effect of Using Waste Tire as a Fine Aggregate on Mechanical Properties of Fly Ash-Substituted Self-Compacting Concrete

Iranian Journal of Science and Technology Transactions of Civil Engineering ◽

10.1007/s40996-021-00786-6 ◽

2021 ◽

Author(s):

Selim Cemalgil

Keyword(s):

Mechanical Properties ◽

Fly Ash ◽

Fine Aggregate ◽

Self Compacting Concrete ◽

Waste Tire

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Evaluating the durability properties of self compacting concrete made with coarse and fine recycled concrete aggregates

European Journal of Environmental and Civil engineering ◽

10.1080/19648189.2018.1506825 ◽

2018 ◽

Vol 24 (14) ◽

pp. 2383-2399 ◽

Cited By ~ 3

Author(s):

Kanish Kapoor ◽

Surinder Pal Singh ◽

Bhupinder Singh

Keyword(s):

Recycled Concrete ◽

Self Compacting Concrete ◽

Concrete Aggregates ◽

Recycled Concrete Aggregates ◽

Durability Properties

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Strength And Durability Properties Of Steel Fiber Reinforced Self Compacting Concrete

Turkish Journal of Computer and Mathematics Education (TURCOMAT) ◽

10.17762/turcomat.v12i5.1489 ◽

2021 ◽

Vol 12 (5) ◽

pp. 818-826

Author(s):

Sumith Vangara, S Siva Rama Krishna, Venu Malagavelli, K.Tarunkumar, A. Jagadish Babu

Keyword(s):

Steel Fiber ◽

Design Procedure ◽

Steel Fibers ◽

Second Phase ◽

Initial Surface ◽

Fiber Reinforced ◽

Acid Attack ◽

Self Compacting Concrete ◽

Surface Absorption ◽

Durability Properties

In this present study the durability characteristics of Steel fiber reinforced Self compacting concrete (SFRSCC) is determined for M30 and M40 grade concrete mixes. Along with durability strength and sorptivity is carried out and comparison is made with Plane self-compacting concrete (SCC) by chemical resistances, Initial Surface Absorption Test (ISAT). In the present study, the rational mix design procedure for self-compacting concrete is used. SCC mixes contains large quantity of powder (material whose parcel size is 0.125 mm) to maintain the plastic yield of the properties of fresh concrete as per the general guidelines for design of SCC mixes given in the EFNARC (2005). The present project consists of two phases. In the first phase, SCC mixes for different grades are developed without steel fibers and with steel fibers. The mechanical properties like compressive strength of the different grades were studied. In the second phase, based on the experimental results, durability properties were studied with the using of specimens of size 100 mm × 100 mm × 100 mm. Durability studies like Acid attack factors, Acid-Durability factors, Sulphate attack factors, Sorptivity are studied for the Plain SCC and steel Fiber Reinforced SCC and a comparison is made.

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Durability and Mechanical Properties of Self-Compacting Concrete Incorporating Recovered Filler from Hot Mix Asphalt Plants and Recycled Fine Aggregate

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.894.95 ◽

2021 ◽

Vol 894 ◽

pp. 95-101

Author(s):

Sepehr Ghafari ◽

Fereidoon Moghadas Nejad ◽

Ofelia Corbu

Keyword(s):

Compressive Strength ◽

Hot Mix Asphalt ◽

Mechanical Performance ◽

Fine Fraction ◽

Production Plant ◽

Fine Aggregate ◽

Self Compacting Concrete ◽

Limestone Filler ◽

Recycled Fine Aggregate ◽

Maximum Particle

In this research, a sustainable approach is followed to develop efficient mixtures incorporating recycled fine aggregate (RFA) remained from structure demolition as well as limestone filler (LF) from production of hot mix asphalt (HMA). The LF is a byproduct of the drying process in HMA production plant which is not entirely consumed in the production of the HMA and must be hauled and disposed in landfills. The maximum particle size of the LF is approximately 40 µm. Self-Compacting Concrete (SCC) mixtures were designed replacing 5% and 10% of the cement with LF. Incorporation of 50%, and 100% RFA with the fines in the mixtures were considered with and without addition of the LF. Due to the formwork and prefabrication restrictions, the paste volume and the high range water reducer content were tuned in such a way that the slump flow of the mixtures remained between 660 mm to 700 mm without segregation. Durability and mechanical performance of the mixtures were evaluated by resistance against freeze-thaw scaling exposed to deicing agents and compressive strength. It was observed that the SCC mixtures containing 10% LF outperformed those without the use of LF while 5% SCC mixtures did not exhibit tangible superiority. Incorporation of RFA as the fine fraction degraded the durability of all the mixtures. While replacing all the fine fraction with RFA significantly impaired durability and compressive strength, 50% RF mixtures could be designed containing 10% LF that remained in the allowable limits.

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