Correlations between the Hardened Properties of Combination Type SCC Containing UFGGBFS

IF 1.4 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advances in Civil Engineering Materials Pub Date : 2021-02-05 DOI:10.1520/ACEM20190233

P. Chandru, J. Karthikeyan, C. Natarajan

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引用次数: 4

Abstract

This study aims to develop models to correlate the different hardened properties of ultra-fine ground granulated blast-furnace slag (UFGGBFS) admixed SCC mixtures. Seven self-compacting concrete mixtures (SCC-A to SCC-G) were produced with a high powder content of 587 ± 2 kg/m3. The 450 kg/m3 (76 %) of powder was derived from the binders, and the remaining 137 ± 2 kg/m3 (24 %) was obtained from the powder particles (<125 µm) existing in the crushed stone sand. UFGGBFS was utilized as a supplementary binder. Properties of these SCC mixtures were evaluated in fresh as well as in the hardened state. The homogeneity, surface hardness, chloride permeability, electrical resistivity, and absorption of hardened SCC were detected with ultrasonic pulse velocity (UPV), rebound hammer, rapid chloride permeability, Wenner’s four-probe electrical resistivity, and water absorption test methods, respectively. All the seven SCC mixtures demonstrated a nonsegregating flowability and excellent passability without stacking and blocking. At 28, the mix SCC-B recorded a maximum strength of 54 MPa and 4.41 MPa under cube compression and splitting tensile tests, respectively. Moreover, the mix SCC-G demonstrated a 30-MPa compressive strength with a significant cement range of 150 kg/m3. Correlations between the various properties of SCC was also arrived using the experimental results, and it was compared with the existing models.

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含UFGGBFS的复合型SCC硬化性能的相关性

本研究旨在建立超细颗粒化高炉渣(UFGGBFS)掺SCC混合料不同硬化特性的关联模型。生产了7种自密实混凝土混合料(SCC-A ~ SCC-G)，掺粉量高达587±2 kg/m3。其中450 kg/m3(76%)的粉体来自粘结剂，其余137±2 kg/m3(24%)来自碎石砂中存在的粉体颗粒(<125µm)。UFGGBFS作为补充粘合剂使用。这些SCC混合物在新鲜和硬化状态下的性能进行了评估。分别采用超声脉冲速度法(UPV)、回弹锤法、快速氯离子渗透率法、温纳四探针电阻率法和吸水率法检测硬化SCC的均匀性、表面硬度、氯离子渗透率、电阻率和吸收率。所有七种SCC混合物均具有不分离流动性和良好的通过性，无堆积和堵塞。28岁时，SCC-B在立方体压缩和劈裂拉伸试验中的最大强度分别为54 MPa和4.41 MPa。此外，SCC-G混合料的抗压强度为30 mpa，水泥强度范围为150 kg/m3。利用实验结果得到了SCC各性能之间的相关性，并与现有模型进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Civil Engineering Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

2.70

自引率

7.10%

发文量

期刊介绍： The journal is published continuously in one annual issue online. Papers are published online as they are approved and edited. Special Issues may also be published on specific topics of interest to our readers. Advances in Civil Engineering Materials provides high-quality, papers on a broad range of topics relating to the properties and performance of civil engineering materials. Materials Covered: (but not limited to) Concrete, Asphalt, Steel, Polymers and polymeric composites, Wood, Other materials used in civil engineering applications (for example, pavements, bridges, and buildings, including nonstructural building elements such as insulation and roofing), and environmental systems (including water treatment). Core Topics Covered: Characterization, such as chemical composition, nanostructure, and microstructure, Physical properties, such as strength, stiffness, and fracture behavior, Constructability, such as construction methods, quality control/assurance, life cycle analysis, and sustainability, Durability. Papers may present experimental or modeling studies based on laboratory or field observations. Papers relating to sustainability of engineering materials or to the impact of materials on sustainability of engineering structures are especially encouraged.