Research on Mechanical Properties of Steel Slag Concrete Based on Macro-meso Scale

XUE Gang; SUN Lisuo; ZHAO Yujie; DONG Wei

doi:10.13204/j.gyjzG21020903

Volume 52 Issue 1

Apr. 2022

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XUE Gang, SUN Lisuo, ZHAO Yujie, DONG Wei. Research on Mechanical Properties of Steel Slag Concrete Based on Macro-meso Scale[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(1): 180-186,179. doi: 10.13204/j.gyjzG21020903

Citation:

XUE Gang, SUN Lisuo, ZHAO Yujie, DONG Wei. Research on Mechanical Properties of Steel Slag Concrete Based on Macro-meso Scale[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(1): 180-186,179. doi: 10.13204/j.gyjzG21020903

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Research on Mechanical Properties of Steel Slag Concrete Based on Macro-meso Scale

doi: 10.13204/j.gyjzG21020903

College of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China

Received Date: 2021-02-09
Available Online: 2022-04-24

Abstract

Abstract

In order to study the mechanical properties of steel slag fine aggregate concrete, mortar and concrete with steel slag substitution rate of 0, 10%, 20% and 30% were prepared.The compressive strength of mortar, the compressive strength of concrete cube, the splitting tensile strength and flexural strength were tested.The results showed that the granulated steel slag had interface transition zone, which could weaken the compressive strength of steel slag mortar.Steel slag had a certain hydration activity, which could improve the water-cement ratio of mortar, and then improve the compressive strength of mortar.When the substitution rate of steel slag was 20%, the compressive strength and splitting tensile strength of concrete specimens were the largest. When the substitution rate of steel slag was 30%, the flexural strength of concrete specimen was the highest.Based on the meso scale, the steel slag concrete was regarded as a five-phase composite composed of mortar, coarse aggregate, steel slag particles, the interface of mortar and coarse aggregate, and the interface of mortar and steel slag particles.The meso numerical model of steel slag concrete was established to simulate the compressive strength, flexural strength and load-deflection curves of concrete cubes with different steel slag contents.The simulation results were in good agreement with the experimental results, which verified the correctness of the meso model.
- steel slag fine aggregate,
- steel slag concrete,
- mechanical properties,
- meso,
- numerical simulation

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References(22)

References

[1]	赵世冉,张凯峰,焦国峰,等.钢渣复合胶凝材料活性及其对混凝土性能的影响[J].材料导报,2015,29(26):463-467.
[2]	KOUROUNIS S, TSIVILIS S, TSAKIRIDIS P E, et al. Properties and hydration of blended cements with steelmaking slag[J]. Cement and Concrete Research, 2007, 37(6):815-822.
[3]	TENG S, LIM T Y D, SABET D B. Durability and mechanical properties of high strength concrete incorporating ultra fine ground granulated blast-furnace slag[J]. Construction and Building Materials, 2013, 40:875-881.
[4]	杨钱荣,杨全兵.含钢渣复合掺合料对混凝土耐久性的影响[J].同济大学学报(自然科学版),2010,38(8):1200-1204.
[5]	GUPTA T,SACHDEVA S N. Laboratory investigation and modeling of concrete pavements containing AOD steel slag[J]. Cement and Concrete Research,2019,124:1-11.
[6]	于峰,张扬,王旭良,等.全集料钢渣混凝土抗压强度试验研究[J].应用基础与工程科学学报,2018(4):854-862.
[7]	朱训国,王兆毅,何传琪,等.低强度钢渣混凝土抗压及抗渗性能试验研究[J].西安理工大学学报,2019,35(2):256-263.
[8]	邢琳琳,尚建丽.钢渣粗骨料对混凝土性能的影响研究[J].混凝土,2017(9):105-107.
[9]	张忠哲,冯勇,晋强,等.钢渣替换骨料对混凝土的力学性能及耐水性影响[J].混凝土,2017(5):75-81.
[10]	韩艳丽,冯勇,肖磊.粗细钢渣替代天然骨料对混凝土力学性能的影响[J].混凝土与水泥制品,2015(2):96-98.
[11]	马怀发,陈厚群,黎宝坤.混凝土细观力学研究进展及评述[J].中国水利水电科学研究院学报,2004(2):124-130.
[12]	ZDENEK P B,KAZEMI M T.Random particle models for fracture of aggregate or fiber composites[J].Journal of Engineering Mechanics,1990,116(8):1686-1705.
[13]	WANG Z M,KWAN A K H,CHAN H C.Mesoscopic study of concrete:generation of random aggregate structure and finite element mesh[J].Computers & Structure,1999,70(5):533-556.
[14]	朱万成,唐春安.混凝土试样在静态载荷作用下断裂过程的数值模拟研[J].工程力学,2002,19(6):148-153.
[15]	中华人民共和国建设部.建筑砂浆基本性能试验方法标准:JGJ/T 70-2009[S].北京:中国建筑工业出版社, 2009.
[16]	中华人民共和国建设部.普通混凝土力学性能试验方法标准:GB/T 50081-2002[S].北京:中国建筑工业出版社, 2002.
[17]	杨朝霞.橡胶混凝土强度细观机理研究[D].郑州:郑州大学,2017.
[18]	CHEN X Q, WANG G T, DONG Q, et al. Microscopic characterizations of pervious concrete using recycled Steel Slag Aggregate[J].Journal of Cleaner Production,2020,254:1-9.
[19]	徐宏殷. 改性橡胶混凝土的配制与物理力学性能研究[D].郑州:郑州大学,2015.
[20]	陈惠苏,孙伟,STROEVEN P.水泥基复合材料界面对材料宏观性能的影响[J].建筑材料学报,2005,8(1):51-62.
[21]	张迎雪. 基于随机骨料模型细观混凝土界面过渡区力学性能研究[D].杨凌:西北农林科技大学,2017.
[22]	NAGAI K,SATO Y,UEDA T.Mesoscopic simulation of failure of mortar and concrete by 2D RBSM[J].Journal of Advanced Concrete Technology,2004,2(3):359-374.