废弃口罩改性充填材料力学性能与本构关系研究

李向东; 管伟明; 张雪卫; 夏晓成; 胡红倩; 郑瑜

doi:10.13568/j.cnki.651094.651316.2023.12.16.0001

您当前的位置：

首页 >

文章列表页 >

废弃口罩改性充填材料力学性能与本构关系研究

工程技术 | 更新时间：2026-01-21

- 废弃口罩改性充填材料力学性能与本构关系研究
- 废弃口罩改性充填材料力学性能与本构关系研究
- 新疆大学学报（自然科学版中英文） 2024年41卷第6期页码：746-755
- 作者机构：
  
  新疆大学地质与矿业工程学院
- 作者简介：
- 基金信息：
  
  国家自然科学基金“动载作用下UHMWPE复材约束高水材料支护结构的力学响应机制”（51904268）;新疆大学国家级大学生创新训练项目“煤矿地下水库微生物还原矿化CO2机理研究”（202210755009）
- DOI：10.13568/j.cnki.651094.651316.2023.12.16.0001
  中图分类号： TD803;X705
- 纸质出版：2024
- 稿件说明：
移动端阅览
[1]李向东,管伟明,张雪卫,等.废弃口罩改性充填材料力学性能与本构关系研究[J].新疆大学学报(自然科学版中英文),2024,41(06):746-755.
[1]李向东,管伟明,张雪卫,等.废弃口罩改性充填材料力学性能与本构关系研究[J].新疆大学学报(自然科学版中英文),2024,41(06):746-755. DOI： 10.13568/j.cnki.651094.651316.2023.12.16.0001.

DOI：10.13568/j.cnki.651094.651316.2023.12.16.0001.

摘要

针对废弃口罩的处理难题，提出了利用废弃口罩改性矿用充填材料力学性能再利用的解决方案．为研究废弃口罩对于充填材料力学性能的影响，通过胶结充填材料流动度、单轴抗压、劈裂抗拉实验，得到口罩截面大小与体积掺量对充填材料力学性能的影响规律；再借助扫描电镜观察微观结构，揭示口罩对充填材料微观影响机理；最后基于等效应变假说，依据单轴压缩应力-应变曲线，建立口罩充填体损伤本构模型．结果表明：两种截面大小的口罩随体积掺量的增加，流动度与抗压强度降低，但口罩的加入增强了充填体的抗拉强度，体积掺量为1.5%、口罩截面大小为0.5 cm×0.5cm时增幅最大．微观结构表明，口罩纤维与充填体结合紧密，但熔喷层与水化产物未接触，在基体中形成空隙，使得抗压强度降低，基体受力后，空隙被压实，口罩在充填体中起到加筋作用与桥接作用，使得充填体的韧性与抗拉强度增强．建立的本构模型与实验值拟合程度高，可为后续研究提供参考．综合考虑口罩对于充填体力学性能的影响，将口罩加入充填体进行处理时，最佳截面大小为0.5 cm×0.5 cm，体积掺量不宜超过1.0%.

Abstract

In view of the difficult problem of disposal of waste masks

a solution was put forward to reuse the mechanical properties of mine filling materials modified by waste masks. In order to study the influence of the abandoned mask on the mechanical properties of the filling materials

the rule of the influence of the cross section size and volume content of the mask on the mechanical properties of the filling material was obtained through the cemented filling material flow

uniaxial compression and splitting tensile tests. Then the microstructure was observed by scanning electron microscopy to reveal the mechanism of microcosmic influence of the mask on the filling material. Finally

based on the equivalent strain hypothesis and the uniaxial compression stress-strain curve

the damage constitutive model of the mask filling body was established. The results showed that the fluidity and compressive strength of the two types of masks decreased with the increase of volume content

but the addition of masks enhanced the tensile strength of the backfill

and the increase was the largest when the volume content was1.5% and the section size of masks was 0.5 cm×0.5 cm. The microstructure shows that the mask fiber is closely combined with the backfill

but the melt-blown layer is not in contact with the hydration product

forming a gap in the matrix

which reduces the compressive strength. When the matrix is stressed

the gap is compacted

and the mask plays a reinforcing and bridging role in the backfill

which increases the toughness and tensile strength of the backfill. The established constitutive model fits well with the experimental values

which can provide reference for the subsequent research. Considering the influence of the mask on the physical performance of the filling

when the mask is added to the filling body for treatment

the optimal section size of the mask in this experiment is 0.5cm×0.5 cm

and the volume content should not exceed 1.0%.

关键词

Keywords

references

马金华，张继云．重大突发公共卫生事件冲击下我国口罩资源应急配置问题研究：以“新冠肺炎”疫情防控为例[J]．山东财经大学学报，2020,32(3):67-80.MA J H,ZHANG J Y.Emergency allocation of mask resources in China under the shock of major public health emergency:A case study of COVID-19 prevention and control[J].Journal of Shandong University of Finance and Economics,2020,32(3):67-80.(in Chinese)

PARASHAR N,HAIT S.Plastics in the time of COVID-19 pandemic:Protector or polluter?[J].Science of the Total Environment,2021,759:144274.

陈贤川，熊雄，吴辰熙．一次性防护口罩使用向环境中释放微塑料的潜力研究[J]．环境保护，2020,48(23):53-55.CHEN X C,XIONG X,WU C X.Study on the potential of microplastics released into the environment by using disposable protective masks[J].Environmental Protection,2020,48(23):53-55.(in Chinese)

FADARE O O,OKOFFO E D.COVID-19 face masks:A potential source of microplastic fibers in the environment[J].Science of the Total Environment,2020,737:140279.

谢嘉璇，曾有旭，储洪强，等．废弃口罩纤维增强砂浆的性能研究[J]．混凝土，2022(9):152-155.XIE J X,ZENG Y X,CHU H Q,et al.Properties of disposable medical masks fiber reinforced mortar[J].Concrete,2022(9):152-155.(in Chinese)

AJAM L,TRABELSI A,KAMMOUN Z.Valorisation of face mask waste in mortar[J].Innovative Infrastructure Solutions,2022,7:130.

LI Z P,ZHANG Z G,FEI M E,et al.Upcycling waste mask PP microfibers in Portland cement paste:Surface treatment by graphene oxide[J].Materials Letters,2022,318:132238.

MIAH M J,PEI J J,KIM H,et al.Property assessment of an eco-friendly mortar reinforced with recycled mask fiber derived from COVID-19 single-use face masks[J].Journal of Building Engineering,2023,66:105885.

IDREES M,AKBAR A,MOHAMED A M,et al.Recycling of waste facial masks as a construction material,a step towards sustainability[J].Materials,2022,15(5):1810.

AHMED W,LIM C W.Effective recycling of disposable medical face masks for sustainable green concrete via a new fiber hybridization technique[J].Construction and Building Materials,2022,344:128245.

ALI M,OPULENCIA M J C,CHANDRA T,et al.An environmentally friendly solution for waste facial masks recycled in construction materials[J].Sustainability,2022,14(14):8739.

KONIORCZYK M,BEDNARSKA D,MASEK A,et al.Performance of concrete containing recycled masks used for personal protection during coronavirus pandemic[J].Construction and Building Materials,2022,324:126712.

RAJEEV P,RAMESH A,NAVARATNAM S,et al.Using fibre recovered from face mask waste to improve printability in 3D concrete printing[J].Cement&Concrete Composites,2023,139:105047.

KILMARTIN-LYNCH S,SABERIAN M,LI J,et al.Preliminary evaluation of the feasibility of using polypropylene fibres from COVID-19 single-use face masks to improve the mechanical properties of concrete[J].Journal of Cleaner Production,2021,296:126460.

赵兴东，周鑫，赵一凡，等．深部金属矿采动灾害防控研究现状与进展[J]．中南大学学报(自然科学版)，2021,52(8):2522-2538.ZHAO X D,ZHOU X,ZHAO Y F,et al.Research status and progress of prevention and control of mining disasters in deep metal mines[J].Journal of Central South University(Science and Technology),2021,52(8):2522-2538.(in Chinese)

王方田，高翔，冯光明，等．深部煤层超高水充填工作面充填体-支架-煤体协同承载机制[J]．采矿与安全工程学报，2022,39(4):663-673.WANG F T,GAO X,FENG G M,et al.Synergistic bearing mechanism of backfilling body-support-coal body in deep super-high water backfilling working face[J].Journal of Mining&Safety Engineering,2022,39(4):663-673.(in Chinese)

周逸文，张涛，段隆臣，等．我国矿山采空区综合治理研究综述[J]．安全与环境工程，2022,29(4):220-230.ZHOU Y W,ZHANG T,DUAN L C,et al.Summary of research on comprehensive treatment of mine goaf in China[J].Safety and Environmental Engineering,2022,29(4):220-230.(in Chinese)

南小军．纤维增强水泥-尾砂基复合充填材料力学及流变特性研究[J]．有色金属工程，2022,12(8):131-138.NAN X J.Study on mechanical and rheological properties of fiber-reinforced cement-tailing sand-based composite filling materials[J].Nonferrous Metals Engineering,2022,12(8):131-138.(in Chinese)

侯永强，尹升华，赵国亮，等．聚丙烯纤维增强尾砂胶结充填体力学及流动性能研究[J]．材料导报，2021,35(19):19030-19035.HOU Y Q,YIN S H,ZHAO G L,et al.Study on the mechanical and flow properties of polypropylene fiber reinforced cemented tailings backfill[J].Materials Reports,2021,35(19):19030-19035.(in Chinese)

王喜婵，郭忠林，孙伟．掺纤维分层胶结充填体力学强度特性试验[J]．有色金属(矿山部分)，2022,74(3):16-23.WANG X C,GUO Z L,SUN W.Mechanical strength properties of fiber-doped layered cemented backfill[J].Nonferrous Metals(Mining Section),2022,74(3):16-23.(in Chinese)

吴生海，宋玲，姚亚峰．聚丙烯纤维、玻璃纤维及矿渣含量对充填体力学特性的影响试验研究[J]．矿业安全与环保，2022,49(6):62-67+84.WU S H,SONG L,YAO Y F.Experimental study on the effect of polypropylene fiber,glass fiber and slag on mechanical properties of cemented tailings backfill[J].Mining Safety&Environmental Protection,2022,49(6):62-67+84.(in Chinese)

徐文彬，李乾龙，田明明．聚丙烯纤维加筋固化尾砂强度及变形特性[J]．工程科学学报，2019,41(12):1618-1626.XU W B,LI Q L,TIAN M M.Strength and deformation properties of polypropylene fiber-reinforced cemented tailings backfill[J].Chinese Journal of Engineering,2019,41(12):1618-1626.(in Chinese)

中华人民共和国交通运输部．公路工程水泥及水泥混凝土试验规程：JTG 3420―2020[S]．北京：人民交通出版社，2021.Ministry of Transport of the People’s Republic of China.Test code for cement and cement concrete in highway engineering:JTG3420―2020[S].Beijing:China Communications Press,2021.(in Chinese)

侯永强．金川二矿区废石尾砂复合胶结充填体力学特性及损伤破裂机理研究[D]．北京：北京科技大学，2023.HOU Y Q.Study on mechanical properties and fracture mechanism of waste rock tailings composite cemented backfill in Jinchuan No. 2 mining area[D].Beijing:University of Science and Technology Beijing,2023.(in Chinese)

LEMAITRE J.How to use damage mechanics[J].Nuclear Engineering and Design,1984,80(2):233-245.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

加筋玻璃纤维复合材料板力学性能研究

退火对激光熔覆AlSi10Mg/40%WC涂层组织及性能的影响

非晶合金断口形貌演化机理的研究进展

基于分子动力学的镁硅酸盐熔融特性机理研究

焦煤热溶萃取收率与其特性参数的相关性研究（英文）