Influence of steel slag on mechanical properties and durability of concrete

Wang Qiang; Yan Peiyu; Yang Jianwei; Zhang Bo

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Influence of steel slag on mechanical properties and durability of concrete

机译：钢渣对混凝土力学性能和耐久性的影响

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摘要

Steel slag is a potential mineral admixture for concrete. In this paper, the influence of steel slag on the compressive strength, drying shrinkage, permeability to chloride, and carbonation resistance of concrete was investigated under two different conditions: constant W/B and constant 28 days' compressive strength. The results show that under the condition of constant W/B, increasing the steel slag replacement tends to decrease the compressive strength (especially the early strength), increase the permeability, and decrease the anti-carbonation ability of concrete. The negative effect of steel slag on the compressive strength, permeability, and carbonation resistance of concrete is weaker at lower W/B. At high W/B, steel slag tends to accelerate the development of drying shrinkage at the early ages, but it has an insignificant influence on the ultimate shrinkage at 90 days. At low W/B, steel slag has little influence on the drying shrinkage of concrete. Under the condition of constant 28 days' compressive strength, the concrete with steel slag exhibits lower early strength but higher late strength than the pure cement concrete. The concrete with steel slag can get permeability, drying shrinkage, and carbonation resistance similar to the pure cement concrete.

机译：钢渣是混凝土的潜在矿物掺合料。本文研究了钢渣对W / B恒定和28天抗压强度在两种不同条件下对混凝土抗压强度，干缩，氯离子渗透性和抗碳化性的影响。结果表明，在水灰比恒定的条件下，增加钢渣替代量会降低抗压强度（特别是早期强度），增加渗透性，降低混凝土的抗碳化能力。 W / B较低时，钢渣对混凝土的抗压强度，渗透性和抗碳化性的负面影响较弱。在高W / B时，钢渣在早期倾向于加速干燥收缩的发展，但对90天的最终收缩影响不大。在低水灰比下，钢渣对混凝土的干燥收缩几乎没有影响。在恒定的28天抗压强度条件下，钢渣混凝土的早期强度要比纯水泥混凝土低，但后期强度却要比纯水泥混凝土高。与纯水泥混凝土相似，带有钢渣的混凝土具有渗透性，干缩性和抗碳化性。

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来源
《Construction and Building Materials》 |2013年第10期|1414-1420|共7页
作者
Wang Qiang; Yan Peiyu; Yang Jianwei; Zhang Bo;
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作者单位

Department of Civil Engineering, Tsinghua University, Beijing 100084, China;

Department of Civil Engineering, Tsinghua University, Beijing 100084, China;

Department of Civil Engineering, Tsinghua University, Beijing 100084, China;

Department of Civil Engineering, Tsinghua University, Beijing 100084, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Steel slag; Compressive strength; Drying shrinkage; Permeability; Carbonation;

机译：钢渣抗压强度;干燥收缩;渗透性碳化;

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1. Concretes made of EAF slag and AOD slag aggregates from stainless steel process: Mechanical properties and durability [J] . G. Adegoloye, A.-L. Beaucour, S. Ortola, Construction and Building Materials . 2015,第feba1期

机译：由不锈钢工艺制成的电弧炉炉渣和AOD炉渣骨料制成的混凝土：机械性能和耐久性
2. Influence of double hooked-end steel fibers and slag on mechanical and durability properties of high performance recycled aggregate concrete [J] . Afroughsabet Vahid, Biolzi Luigi, Ozbakkaloglu Togay Composite Structures . 2017,第deca期

机译：双钩端钢纤维和矿渣对高性能再生骨料混凝土力学和耐久性能的影响
3. Mechanical strengths and durability properties of pervious concretes with blended steel slag and natural aggregate [J] . Wang Shunxiang, Zhang Guofang, Wang Bo, Journal of Cleaner Production . 2020,第Octa20期

机译：具有混合钢渣和自然聚集体的渗透混凝土机械强度及耐久性性能
4. The Effect of Steel Slag Coarse Aggregate on the Mechanical and Durability Performances of Concrete [C] . Jihad Miah, Mohammad S. Miah, Anisa Sultana International Conference on Material and Manufacturing Technology . 2020

机译：钢渣粗骨料对混凝土机械和耐久性性能的影响
5. Concrete made with steel slag and waste glass and its application in concrete-filled steel tubular columns. [D] . Yu, Xin. 2017

机译：钢渣和废玻璃制成的混凝土及其在钢管混凝土柱中的应用。
6. Influence of Pozzolan Slag and Recycled Aggregates on the Mechanical and Durability Properties of Low Cement Concrete [O] . Eliana Soldado, Ana Antunes, Hugo Costa, 2021

机译：Pozzolan炉渣和再循环物对低水泥混凝土机械和耐久性性能的影响
7. Mechanical properties of various concrete after high temperature exposure Mechanical property of various types of concrete after high temperature exposure is investigated. Considering compressive strength requirement for a vertical element in high rise building, concrete specimens with various design strengths of 35, 80, 100, and 150 MPa were tested. Particularly, the influence of incorporated steel fiber on fire resistance is of interest in this study. Experimental results show that the fire resistance depends on the design strength and steel fiber content. Normal strength concrete (NSC) of a design strength of 35 MPa or high performance concrete (HPC) of 80-100 MPa does not spall when exposed to 100-400 °C of temperature. However, an explosive spalling occurs at 300 °C when the HPCs contain 1 vol. of steel fiber. Ultra-high performance concrete (UHPC) of a design strength of 150 MPa and 1.5 vol. of steel fiber also shows dramatic spalling at 300 °C. The experimental results found in this study can contribute to a better understanding of the behaviors of HPC and UHPC under fire and the role of steel fiber on the fire resistance. [O] . 2017

机译：研究了高温暴露后各种混凝土高温曝光机械性能各种混凝土的机械性能。考虑到高层建筑中垂直元件的抗压强度要求，测试了35,80,100和150MPa各种设计强度的混凝土试样。特别是，在这项研究中，掺入钢纤维对耐火性的影响。实验结果表明，耐火性取决于设计强度和钢纤维含量。在暴露于100-400°C的温度时，80-100MPa的设计强度为35MPa或高性能混凝土（HPC）的正常强度混凝土（NSC）不会击落。然而，当HPC含有1体积的钢纤维的百分比时，爆炸性剥落发生在300℃。超高性能混凝土（UHPC）的设计强度为150 MPa和1.5 Vol。钢纤维的百分比也显示出300℃的剧烈剥落。本研究中发现的实验结果可以有助于更好地了解在火灾中的HPC和UHPC的行为以及钢纤维对耐火性的作用。
8. Influence of High Slag Content on the Basic Mechanical Properties and Carbonation of Concrete [R] . Haekkinen, T. 1993

机译：高矿渣含量对混凝土基本力学性能和碳化的影响

Influence of steel slag on mechanical properties and durability of concrete

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