粗骨料超高性能混凝土(UHPC-CA)的设计方法、力学与收缩性能研究进展
Research progress on design methods, mechanical and shrinkage properties of ultra-high performance concrete containing coarse aggregates (UHPC-CA)
关键词:
超高性能混凝土(UHPC);粗骨料;设计方法;力学性能;收缩性能;作用机理
Key words:
Research progress on design methods, mechanical and shrinkage properties of ultra-high performance concrete containing coarse aggregates (UHPC-CA)
刊期:
2025年第10期
DOI:
10.19761/j.1000-4637.2025.10.136.07
文章编号:
基金项目:
安徽高校协同创新项目(GXXT-2022-083、GXXT-2023-019)。
作者:
王庆平1,2,3,程志伟1,蔡婧怡1,王璐瑶1,张嘉尧1
单位:
1.安徽理工大学 材料科学与工程学院,安徽 淮南 232001;2.安徽省煤基固废新材料产业共性技术研究中心,安徽 淮南 232001;3.深部煤炭安全开采与环境保护全国重点实验室,安徽 淮南 232001
摘要
摘 要:从理论模型和组成原材料两方面介绍了粗骨料超高性能混凝土(Ultra-high performance concrete containing coarse aggregates,UHPC-CA)的设计方法,分析了粗骨料的种类、粒径、含量等对UHPC-CA抗压、抗拉、弯曲和收缩性能的调控作用,并对其未来研究方向进行了展望,为UHPC-CA的设计和工程应用提供了理论支撑。
Abstract: The design method of ultra-high performance concrete containing coarse aggregates (UHPC-CA) from two aspects of theoretical model and raw material composition is introduced. The regulating effects of the type, particle size, and content of coarse aggregates on the compressive, tensile, bending, and shrinkage properties of UHPC-CA are analyzed, and future research directions are discussed, which can provide theoretical support for the design and engineering application of UHPC-CA.
结论
(1)与不含粗骨料的普通UHPC类似,UHPC-CA主要根据MAA模型进行设计。
(2)在UHPC-CA中掺入适量纳米材料可以显著改善UHPC的微观结构,增强其力学及耐久性能;掺入适量地聚合物可使UHPC-CA具备优异的耐火和耐化学腐蚀性能,同时有效减少CO2排放,符合“双碳”目标要求。
(3)通过合理优化粗骨料的粒径、形状和表面特性,可以有效减小UHPC-CA内部ITZ的孔隙率,提高UHPC-CA的结构密实度和各基质间的黏结力。
(4)不同粗骨料种类UHPC-CA的早期(3 d)抗压强度差异较小,但7、28、90 d抗压强度差异较大。掺入适量粗骨料有利于提高UHPC-CA的抗压性能。另外,粒径较大的粗骨料可以提供更好的骨架支撑作用,且能够使基体中有更多的自由水用于胶凝材料水化,这对抗压性能有利,但同时,粗骨料粒径越大,其周围的应力集中现象也会越严重,这对抗压性能不利。因此,需选择合适粒径的粗骨料制备UHPC,避免粗骨料的尺寸效应对UHPC的性能产生不利影响。
(5)掺入粗骨料会导致UHPC-CA的抗拉强度略微降低;少量粗骨料的掺入不会对UHPC-CA的抗弯强度产生负面影响,但随着粗骨料含量大幅增加,UHPC-CA的抗弯性能将明显下降。因此,实际应用时,需合理控制粗骨料含量。
(6)掺入适量粗骨料不仅能降低UHPC-CA的胶凝材料用量,而且能有效限制UHPC-CA收缩。此外,辅以合适的养护方式或掺入合适的外加剂,可进一步改善UHPC-CA的收缩性能。
(7)目前关于UHPC-CA的研究主要集中在宏观试验层面,关于其力学行为的本构关系及粗骨料与各基质之间的微观作用研究相对较少,后续可加强此方面研究,以加速完善UHPC-CA的设计方法,推进UHPC-CA的实际工程应用。
参考文献
[1] MISHRA O,SINGH S P.An overview of microstructural and material properties of ultra-high-performance concrete[J].Journal of Sustainable Cement-Based Materials,2019,8(2):97-143.
[2] YOO D-Y,BANTHIA N.Mechanical properties of ultra-high-performance fiber-reinforced concrete: A review[J].Cement and Concrete Composites,2016,73:267-280.
[3] GU C P,YE G,SUN W.Ultrahigh performance concrete-properties, applications and perspectives[J].Science China Technological Sciences,2015,58(4):587-599.
[4] RUSSELL H G,GRAYBEAL B A.Ultra-high performance concrete: A state-of-the-art report for the bridge community[R].United States:Federal Highway Administration,2013.
[5] YAL?覶INKAYA ?覶,YAZICI H.Effects of ambient temperature and relative humidity on early-age shrinkage of UHPC with high-volume mineral admixtures[J].Construction and Building Materials,2017,144:252-259.
[6] ARORA A,ALMUJADDIDI A,KIANMOFRAD F,et al.Material design of economical ultra-high performance concrete (UHPC) and evaluation of their properties[J].Cement Concrete Composites,2019,104:103346.
[7] 陈宝春,季韬,黄卿维,等.超高性能混凝土研究综述[J].建筑科学与工程学报,2014,31(3):1-24.
[8] TAM C M,TAM V W Y,NG K M.Assessing drying shrinkage and water permeability of reactive powder concrete produced in Hong Kong[J].Construction and Building Materials,2012,26(1):79-89.
[9] CWIRZEN A,PENTTALA V,VORNANEN C J C.Reactive powder based concretes: Mechanical properties, durability and hybrid use with OPC[J].Cement Concrete Research,2008,38(10):1217-1226.
[10] GUO Y,WANG D,ASHOUR A,et al.Self-sensing ultra-high performance concrete: A review[J].Measurement Science and Technology,2024,35(3):032003.
[11] ZHAO X D,XU Z Z,TIAN W C,et al.A new scattering-filling process for regulating coarse aggregate and fiber spatial distribution in ultra-high performance concrete[J].Construction and Building Materials,2024,416:135074.
[12] ZHAO S J,SUN W.Effect of silica fume and fly ash on pore structures of blended pastes at low water to binder ratios[J].Advances in Cement Research,2015,27(9):506-514.
[13] EDWIN R S,GRUYAERT E,BELIE N D.Influence of intensive vacuum mixing and heat treatment on compressive strength and microstructure of reactive powder concrete incorporating secondary copper slag as supplementary cementitious material[J].Construction and Building Materials,2017,155:400-412.
[14] YU Z H,WU L S,YUAN Z,et al.Mechanical properties, durability and application of ultra-high-performance concrete containing coarse aggregate (UHPC-CA): A review[J].Construction and Building Materials,2022,334:127360.
[15] HUNGER M.An integral design concept for ecological self-compacting concrete[D].Eindhoven:Eindhoven University of Technology,2010.
[16] WANG D H,SHI C J,WU Z M,et al.A review on ultra high performance concrete: Part Ⅱ. Hydration, microstructure and properties[J].Construction and Building Materials,2015,96:368-377.
[17] SORELLI L,CONSTANTINIDES G,ULM F J,et al.The nano-mechanical signature of Ultra High Performance Concrete by statistical nanoindentation techniques[J].Cement and Concrete Research,2008,38(12):1447-1456.
[18] ZHANG W H,ZHANG Y S.Apparatus for monitoring the resistivity of the hydration of cement cured at high temperature[J].Instrumentation Science and Technology,2016,45(2):151-162.
[19] MORIN V,COHEN-TENOUDJI F,FEYLESSOUFI A,et al.Evolution of the capillary network in a reactive powder concrete during hydration process[J].Cement and Concrete Research,2002,32(12):1907-1914.
[20] TAYLOR H F.Cement chemistry[M].London:Thomas Telford London,1997.
[21] ZANNI H,CHEYREZY M,MARET V,et al.Investigation of hydration and pozzolanic reaction in reactive powder concrete (RPC) using 29Si NMR[J].Cement Concrete Research,1996,26(1):93-100.
[22] BONNEAU O,VERNET C,MORANVILLE M,et al.Characterization of the granular packing and percolation threshold of reactive powder concrete[J].Cement and Concrete Research,2000,30(12):1861-1867.
[23] FENNIS S A A M,WALRAVEN J C,UIJL J A.Compaction-interaction packing model: regarding the effect of fillers in concrete mixture design[J].Materials and Structures,2013,46(3):463-478.
[24] OZAWA K,SAKATA N,OKAMURA H.Evaluation of self-compactability of fresh concrete using the funnel test[J].Doboku Gakkai Ronbunshu,1994,1994(490):61-70.
[25] 王晖.超高性能混凝土(UHPC)研究综述[J].混凝土与水泥制品,2022(4):25-28.
[26] YU R,SPIESZ P,BROUWERS H J H.Effect of nano-silica on the hydration and microstructure development of ultra-high performance concrete (UHPC) with a low binder amount[J].Construction and Building Materials,2014,65:140-150.
[27] GESOGLU M,G?譈NEYISI E,ASAAD D S,et al.Properties of low binder ultra-high performance cementitious composites: Comparison of nanosilica and microsilica[J].Construction and Building Materials,2016,102:706-713.
[28] HUANG W,KAZEMI-KAMYAB H,SUN W,et al.Effect of cement substitution by limestone on the hydration and microstructural development of ultra-high performance concrete (UHPC)[J].Cement and Concrete Composites,2017,77:86-101.
[29] SHEN J L,LI Y,LIN H,et al.The experimental study on microwave-assisted preparation of ultra-high performance geopolymer concrete (UHPGC)[J].Construction and Building Materials,2024,414:134934.
[30] 钟蕴为,吴永魁,文许高媛,等.超高性能混凝土(UHPC)基本性能研究综述[J].混凝土与水泥制品,2021(9):1-4.
[31] 杨凤玲,嵇银行,刘伟,等.含粗骨料超高性能混凝土的试验研究[J].混凝土,2018(12):110-113.
[32] LI S,ZHENG W Z,ZHOU W,et al.Local compression capacity of steel fiber reinforced ultra-high performance concrete containing coarse aggregate[J].Composite Structures,2023,318:117084.
[33] LI L J,XU L H,HUANG L,et al.Compressive fatigue behaviors of ultra-high performance concrete containing coarse aggregate[J].Cement and Concrete Composites,2022,128:104425.
[34] 唐咸远,马杰灵,郭彬,等.粗骨料含量对预拌成品超高性能混凝土抗压强度的影响[J].混凝土,2023(6):130-133.
[35] XIONG M X,LIEW J Y R,WANG Y B,et al.Effects of coarse aggregates on physical and mechanical properties of C170/185 ultra-high strength concrete and compressive behaviour of CFST columns[J].Construction and Building Materials,2020,240:117967.
[36] FENG T T,JIA M K,XU W X,et al.Three-dimensional mesoscopic investigation of the compression mechanical properties of ultra-high performance concrete containing coarse aggregates[J].Cement and Concrete Composites,2022,133:104678.
[37] AMIN M,TAYEH B A,AGWA I S.Effect of using mineral admixtures and ceramic wastes as coarse aggregates on properties of ultrahigh-performance concrete[J].Journal of Cleaner Production,2020,273:123073.
[38] SHI Z C,SU Q T,KAVOURA F,et al.Uniaxial tensile response and tensile constitutive model of ultra-high performance concrete containing coarse aggregate (CA-UHPC)[J].Cement and Concrete Composites,2023,136:104878.
[39] PYO S,KIM H K,LEE B Y.Effects of coarser fine aggregate on tensile properties of ultra high performance concrete [J].Cement and Concrete Composites,2017,84:28-35.
[40] LIU J Z,HAN F Y,CUI G,et al.Combined effect of coarse aggregate and fiber on tensile behavior of ultra-high performance concrete[J].Construction and Building Materials,2016,121:310-318.
[41] YOO D Y,KIM S W,PARK J J.Comparative flexural behavior of ultra-high-performance concrete reinforced with hybrid straight steel fibers[J].Construction and Building Materials,2017,132:219-229.
[42] 苏捷,史才军,鲁飞扬,等.含粗骨料超高性能混凝土弯拉强度尺寸效应[J].硅酸盐学报,2022,50(2):438-444.
[43] SHEN C,TANG D S,LYU Z Q,et al.Distribution of coarse aggregate and steel fibers in ultra-high performance concrete containing coarse aggregate (UHPC-CA) and their effect on the flexural performance[J].Construction and Building Materials,2024,421:135666.
[44] LV Y J,ZHANG W H,WU F,et al.Static mechanical properties and mechanism of C200 ultra-high performance concrete (UHPC) containing coarse aggregates[J].Science and Engineering of Composite Materials,2020,27(1):186-195.
[45] LI S H,JENSEN O M,YU Q L.Mechanism of rate dependent behaviour of ultra-high performance fibre reinforced concrete containing coarse aggregates under flexural loading[J].Construction and Building Materials,2021,301:124055.
[46] 王永霞.含白云石粗骨料超高性能混凝土的性能试验研究[J].长江科学院院报,2020,37(1):149-155.
[47] 李信,陈露一,黄有强,等.含粗骨料超高性能混凝土的制备及其性能研究[J].混凝土与水泥制品,2019(11):6-8.
[48] 黄维蓉,杨玉柱,崔通,等.含粗骨料超高性能混凝土收缩变形性能的研究[J].混凝土,2021(8):99-103.
[49] 刘瑞朝,董恩来,马先伟,等.超高性能混凝土收缩研究进展[J].建筑结构,2024,54(6):91-98.
[50] 黄政宇,胡功球.热养护过程中超高性能混凝土的收缩性能研究[J].材料导报,2016,30(4):115-120.
[51] C?譩DRIC A,JEANPHILIPPE C.Shrinkage mitigation of an ultra-high performance concrete submitted to various mixing and curing conditions[J].Materials,2021,14(14):3982.
[52] 杭美艳,宋洪彬,刘佳棋,等.不同养护条件和钢纤维掺量对超高性能混凝土收缩性能的改善[J].四川建筑科学研究,2024,50(2):85-91,100.
[53] HOSSAIN A B,WEISS J.The role of specimen geometry and boundary conditions on stress development and cracking in the restrained ring test[J].Cement and Concrete Research,2004,36(1):189-199.
[54] WANG J Y,BIAN C,XIAO R C,et al.Restrained shrinkage mechanism of ultra high performance concrete[J].KSCE Journal of Civil Engineering,2019,23(10):4481-4492.
[55] ZHOU M,YANG T Y,LI J H,et al.Coupling effect of expansion agent and internal curing aggregate on shrinkage of high-modulus ultra-high-performance concrete[J].Coatings,2023,13(9):1571.
[56] SUN M,BENNETT T,VISINTIN P.Plastic and early-age shrinkage of ultra-high performance concrete (UHPC): Experimental study of the effect of water to binder ratios, silica fume dosages under controlled curing conditions[J].Case Studies in Construction Materials,2022,16:e00948.
引用本文
王庆平,程志伟,蔡婧怡,等.粗骨料超高性能混凝土(UHPC-CA)的设计方法、力学与收缩性能研究进展[J].混凝土与水泥制品,2025(10):136-142.
WANG Q P,CHENG Z W,CAI J Y,et al.Research progress on design methods, mechanical and shrinkage properties of ultra-high performance concrete containing coarse aggregates (UHPC-CA)[J].China Concrete and Cement Products,2025(10):136.142.
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