Material design and engineering application of Fair-faced self-compacting concrete

Wu, Miaomiao; Xiong, Xiaoli; Huo, Xujia; Xu, Guangyou; Zhang, Bingliu; Li, Jiangwei; Zhang, Wensheng

doi:10.1016/j.conbuildmat.2021.123992

Cited by 17 publications

(14 citation statements)

References 20 publications

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“…The fresh and hardened state of this cementitious composite plays an important role in the workability, strength, durability and labor costs of the construction. Self-compacting concrete (SCC) is a special type of concrete with a high rate of consistency that can be spread and consolidated under its own weight within the framework; that is leveled through the expulsion of trapped air and compacting, even in the most heavily reinforced areas and narrowest sections, without the need for vibration; that does not cause such problems as segregation and bleeding; and that maintains its cohesion [ 1 , 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Rheological and Durability Properties of Self-Compacting Concrete Produced Using Marble Dust and Blast Furnace Slag

Karakurt

Dumangöz

2022

Materials

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Self-compacting concrete (SCC) is a special, highly fluid type of concrete that is produced using chemical additives. It is easier to pour and reduces defects arising from workability. Waste marble dust is generated during the production of marble using different methods, or during the cutting of marble in processing plants; however, the uncontrolled disposal of waste marble dust in nature is associated with some environmental problems. Cement and concrete technology is a field with potential for the utilization of these large amounts of waste. The present study explores the use of marble dust (MD) (an industrial waste generated in abundance around the province of Bilecik) and granulated blast furnace slag (GBFS) (another industrial waste product) in the production of SCC. In this study, MD and GBFS are used as fine materials in SCC mixtures, and the rheological and workability properties and other hardened concrete properties of the produced SCC specimens are tested. Additional tests are conducted to identify the durability of the specimens to sulfate attack, as well as their freeze–thaw and abrasion resistance, followed by microstructure tests to identify the effects of MD and GBFS on bond structure. The late-age performances of MD and GBFS were then examined based on the results of the durability tests. The presented results revealed improvements in the fresh and hardened properties of SCC produced using MD and GBFS.

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Section: Introductionmentioning

confidence: 99%

Rheological and Durability Properties of Self-Compacting Concrete Produced Using Marble Dust and Blast Furnace Slag

Karakurt

Dumangöz

2022

Materials

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“…Fair-faced concrete with the appropriate amount of fly ash and slag powder achieves a uniform color, its bubble area is small and there is no quality problem, as shown in Table 2. [31] (Reprinted/adapted with permission from Ref. [31].…”

Section: Compound Mixing Of Fly Ash and Slag Powdermentioning

confidence: 99%

A Review of Effect of Mineral Admixtures on Appearance Quality of Fair-Faced Concrete and Techniques for Their Measurement

Mao,

He,

et al. 2023

Sustainability

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The appearance of fair-faced concrete is crucial, and it can be enhanced by incorporating an appropriate amount of mineral admixture. Different mineral admixtures have varying effects on the appearance quality of fair-faced concrete. For instance, the addition of fly ash helps control color differences and bubble formation on the concrete surface, while slag powder effectively controls its color and finish. In this review, the impact of using various mineral admixtures, such as silica fume, rice husk ash, limestone powder, and seashell powder, in fair-faced concrete on its appearance quality is examined. The effective combination of mineral admixtures made from industrial by-products or solid waste with fair-faced concrete can pave the way for new directions in the green and sustainable development of construction materials. This review also discusses the difficulties in objectively measuring the appearance quality of concrete and the various methods for the acquisition and evaluation of appearance images. New techniques for acquiring and evaluating information about concrete surfaces have been developed with advancements in image acquisition and processing technology. These techniques complement traditional manual inspection methods. The 3D Alicona system is advantageous for identifying air bubbles on concrete surfaces, the atomic-force microscope detects surface roughness, and the Orbital large-format scanner is ideal for use in large-scale engineering applications. Also, evaluation methods for different image processing software are presented in this article. This information offers a useful reference for future research and practical application.

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“…where ∆t = T − (−273). According to the test data, for the naturally cooled specimens, α and ∆t can be approximately fitted to a fifth-degree polynomial relationship, as shown in Equation (8). For the water-cooled specimens, α and ∆t can be approximately fitted to a third-degree polynomial relationship, as shown in Equation ( 9).…”

Section: Suggestion Of the Model Equationmentioning

confidence: 99%

“…According to the existing research results, SCC produces resistance to segregation by using mineral fillers or fines and using special admixtures, which have partially replaced cement in several nations [4][5][6]. These advantages enable SCC to be widely applied in tunnels, ultra-high-rise buildings, and long-span bridges [7][8][9]. However, structures are prone to fires, even though preventions such as coating have been applied.…”

Section: Introductionmentioning

confidence: 99%

Compressive Properties of Self-Compacting Concrete after Cooling from High Temperatures

Zhu

Zhang²,

2022

Buildings

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Self-compacting concrete (SCC) has been widely used in building structures. However, previous research focused only on the mechanical properties and working properties of SCC at room temperature. Thus, there is limited research on the change of compressive strength of SCC after a fire. This paper aims to investigate the compressive properties of SCC after being cooled from high temperatures. The SCC specimens were firstly heated to a target temperature of 100–700 °C and were then cooled to ambient temperatures by water or in air. The heating and cooling damage to the SCC specimens was assessed by the mass loss and the ultrasonic pulse velocity (UPV) separately. Afterward, the axial compression tests were carried out to investigate the compressive properties of the fire-affected SCC specimens under uniaxial compression. The residual mass, UPV, stress–strain curves, post-fire failure characteristics, and compressive strengths of the SCC specimens were discussed in detail. The mass loss of the SCC specimens showed an obvious increase with the rising temperatures, while the UPV exhibited a converse pattern. The mass loss of the SCC specimens after being naturally cooled increased more significantly, while the two cooling methods used in this experiment had little effect on the UPV. When the SCC specimens were cooled from 100 °C, the compressive strength of the SCC specimens cooled in air or water dropped by 32.54% and 35.15%, respectively. However, while the heating temperature rose to 700 °C, the compressive strengths of the SCC specimens cooled in air or water dropped sharply by 72.98% and 86.51%, respectively. Finally, an improved mathematical model for SCC after cooling from high temperatures was proposed based on Jones and Nelson’s equation. This improved material model matched the experimental results well, which demonstrates that the proposed constitutive model can provide better predictions for the SCC structures after a fire.

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Material design and engineering application of Fair-faced self-compacting concrete

Cited by 17 publications

References 20 publications

Rheological and Durability Properties of Self-Compacting Concrete Produced Using Marble Dust and Blast Furnace Slag

Rheological and Durability Properties of Self-Compacting Concrete Produced Using Marble Dust and Blast Furnace Slag

A Review of Effect of Mineral Admixtures on Appearance Quality of Fair-Faced Concrete and Techniques for Their Measurement

Compressive Properties of Self-Compacting Concrete after Cooling from High Temperatures

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