Influence of Coarse Aggregates and Silica Fume on the Mechanical Properties, Durability, and Microstructure of Concrete

Kim, Seong Soo; Qudoos, Abdul; Jakhrani, Sadam Hussain; Lee, Jeong Bae; Kim, Hong Gi

doi:10.3390/ma12203324

Cited by 26 publications

(12 citation statements)

References 18 publications

(29 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A study by Seong Soo Kim et al [66] demonstrated the improvement in compressive strength due to SF incorporation. Three types of coarse aggregates (basalt, quartzite and granite) were used to produce different concrete samples.…”

Section: Silica Fume (Sf)mentioning

confidence: 99%

“…Compressive strength test results (the specimens made with only cement as binder were noted with the acronyms CG, CQ and CB for concrete with granite, with quartz and with basalt aggregates, respectively). Those containing silica fume were called SFG, SFQ and SFB, accordingly [66]. Compressive strength test results (the specimens made with only cement as binder were noted with the acronyms CG, CQ and CB for concrete with granite, with quartz and with basalt aggregates, respectively).…”

Section: Silica Fume (Sf)mentioning

confidence: 99%

Section: Silica Fume (Sf)mentioning

confidence: 99%

See 2 more Smart Citations

End-of-Life Materials Used as Supplementary Cementitious Materials in the Concrete Industry

et al. 2020

View full text Add to dashboard Cite

A sustainable solution for the global construction industry can be partial substitution of Ordinary Portland Cement (OPC) by use of supplementary cementitious materials (SCMs) sourced from industrial end-of-life (EOL) products that contain calcareous, siliceous and aluminous materials. Candidate EOL materials include fly ash (FA), silica fume (SF), natural pozzolanic materials like sugarcane bagasse ash (SBA), palm oil fuel ash (POFA), rice husk ash (RHA), mine tailings, marble dust, construction and demolition debris (CDD). Studies have revealed these materials to be cementitious and/or pozzolanic in nature. Their use as SCMs would decrease the amount of cement used in the production of concrete, decreasing carbon emissions associated with cement production. In addition to cement substitution, EOL products as SCMs have also served as coarse and also fine aggregates in the production of eco-friendly concretes.

show abstract

Section: Silica Fume (Sf)mentioning

confidence: 99%

Section: Silica Fume (Sf)mentioning

confidence: 99%

See 1 more Smart Citation

End-of-Life Materials Used as Supplementary Cementitious Materials in the Concrete Industry

et al. 2020

View full text Add to dashboard Cite

show abstract

“…In reinforced concrete structures, the workability and durability of concrete are critical for the structures to meet desired structural performance [ 1 , 2 , 3 ]. Furthermore, the evaluation of properties, such as the setting time of fresh concrete, is critical for assuring quality and reducing construction time.…”

Section: Introductionmentioning

confidence: 99%

Monitoring the Setting Process of Cementitious Materials Using Guided Waves in Thin Rods

Wang

Liu

et al. 2021

Materials

View full text Add to dashboard Cite

Characterizing early-age properties is very important for the quality control and durability of cementitious materials. In this paper, an approach using embedded guided waves was adopted to monitor the changes in the mechanical proprieties of mortar and concrete during setting, and embedded thin rods with low-cost piezoelectric sensors mounted on top were used for guide wave monitoring. Through continuous attenuation monitoring of the guided waves, the evolution of mortar and concrete properties was characterized. Four different kinds of metallic rods were tested at the same time to find out the optimal setup. Meanwhile, shear wave velocities of the mortar and concrete samples were monitored and correlated to the attenuation, and setting time tests were also performed on these samples. Experimental results demonstrate that the proposed approach could monitor the evolution of the setting of cementitious materials quantitatively, and time of the initial setting could be determined by this technique as well. In addition, it is found that the attenuations of fundamental longitudinal guided wave mode are almost the same in concrete samples and mortar samples sieved from concrete, indicating that this technique is able to eliminate the effects of coarse aggregates, which makes it of great potential for in-situ monitoring of early age concrete.

show abstract

“…Thus, a simplified expression for estimating the compressive strength was recommended, regardless of the concrete type and composition. Despite the many studies on the estimation of concrete compressive strength using UPV [ 18 , 19 , 20 , 21 , 22 ], there is little research in the literature on the relationship between compressive strength and UPV of concrete containing untreated coal waste. Therefore, this study aims to examine the performance of the UPV method in estimating the compressive strength and the quality of specimens containing untreated coal waste.…”

Section: Introductionmentioning

confidence: 99%

Estimating Compressive Strength of Concrete Containing Untreated Coal Waste Aggregates Using Ultrasonic Pulse Velocity

et al. 2021

View full text Add to dashboard Cite

In recent years, the overuse and exploitation of coal resources as fuel in industry has caused many environmental problems as well as changes in the ecosystem. One way to address this issue is to recycle these materials as an alternative to aggregates in concrete. Recently, non-destructive tests have also been considered by the researchers in this field. As there is limited work on the evaluation of the compressive strength of concrete containing coal waste using non-destructive tests, the current study aims to estimate the compressive strength of concrete containing untreated coal waste aggregates using the ultrasonic pulse velocity (UPV) technique as a non-destructive testing approach. For this purpose, various concrete parameters such as the compressive strength and UPV were investigated at different ages of concrete with different volume replacements of coarse and fine aggregates with coal waste. The test results indicate that 5% volume replacement of natural aggregates with untreated coal waste improves the average compressive strength and UPV of the concrete mixes by 6 and 1.2%, respectively. However, these parameters are significantly reduced by increasing the coal waste replacement level up to 25%. Furthermore, a general exponential relationship was established between the compressive strength and the UPV associated with the entire tested concrete specimens with different volume replacement levels of coal waste at different ages. The proposed relationship demonstrates a good correlation with the experimental results.

show abstract

Influence of Coarse Aggregates and Silica Fume on the Mechanical Properties, Durability, and Microstructure of Concrete

Cited by 26 publications

References 18 publications

End-of-Life Materials Used as Supplementary Cementitious Materials in the Concrete Industry

End-of-Life Materials Used as Supplementary Cementitious Materials in the Concrete Industry

Monitoring the Setting Process of Cementitious Materials Using Guided Waves in Thin Rods

Estimating Compressive Strength of Concrete Containing Untreated Coal Waste Aggregates Using Ultrasonic Pulse Velocity

Contact Info

Product

Resources

About