搅拌程序对高性能混凝土泵送性能的影响

硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (3): 878-887.

所属专题：水泥混凝土

搅拌程序对高性能混凝土泵送性能的影响

申文凯^1,2, 元强³, 纪友红⁴, 曾荣⁴, 李巍⁴, 李富民², 史才军²

1.青岛理工大学滨海人居环境学术创新中心,青岛 266033;
2.湖南大学土木工程学院绿色先进土木工程材料及应用技术湖南省重点实验室,长沙 410082;
3.中南大学土木工程学院,长沙 410075;
4.华润水泥技术研发(广西)有限公司,南宁 530000

收稿日期:2022-11-01 修订日期:2022-12-11 出版日期:2023-03-15 发布日期:2023-03-31
通信作者: 史才军,博士,教授。E-mail:cshi@hnu.edu.cn
作者简介:申文凯(1993—),男,博士,副教授。主要从事水泥基材料流变、混凝土泵送、3D打印方面的研究。E-mail:shenwenkai@qut.edu.cn
基金资助:
国家重点研发计划(2017YFB0310100)

Effect of Mixing Procedure on Pumping Properties of High-Performance Concrete

SHEN Wenkai^1,2, YUAN Qiang³, JI Youhong⁴, ZENG Rong⁴, LI Wei⁴, LI Fumin², SHI Caijun²

1. Innovation Institute for Sustainable Maritime Architecture Research and Technology, Qingdao University of Technology, Qingdao 266033, China;
2. Key Laboratory for Green and Advanced Civil Engineering Materials and Application Technology of Hunan Province, School of Civil Engineering, Hunan University, Changsha 410082, China;
3. School of Civil Engineering, Central South University, Changsha 410075, China;
4. China Resources Cement Technology R&D (Guangxi) Co., Ltd., Nanning 530000, China

Received:2022-11-01 Revised:2022-12-11 Online:2023-03-15 Published:2023-03-31

摘要/Abstract

摘要： 本文研究了不同搅拌时间(120、210、300 s)和减水剂加入方式(先掺和后掺)对高性能混凝土(HPC)流变性能、压力泌水率、润滑层特性的影响规律,并分析了搅拌程序对HPC泵送性能的影响。结果表明:合理延长搅拌时间和后掺减水剂的方法均增加了HPC的流动性;高浆骨比增加了HPC达到最佳流动状态所需的搅拌时间;在一定范围内,增加搅拌时间降低了HPC的泵送阻力,但同时也增加了压力泌水率,降低了泵送过程中HPC的稳定性,增加了堵管风险;在不同搅拌程序下,HPC润滑层黏度系数变化和140 s泌水量变化与泵送阻力之间具有较好的相关性,可作为评价HPC泵送性能的有效指标。

关键词: 搅拌程序, 高性能混凝土, 流变性能, 泵送性能, 工作性, 润滑层

Abstract: The effects of mixing durations (120, 210, 300 s) and superplasticizer addition methods (direct or delayed) on rheological properties, pressure bleeding rates, and lubrication layer characteristics of high-performance concrete (HPC) were investigated. And the effects of mixing procedures on pumping properties of HPC were further evaluated. The results show that the flowability of HPC is enhanced by properly prolonging the mixing duration and the delayed addition of superplasticizer. Besides, it needs a longer mixing time to reach the optimum flowability state for mixtures with a larger paste to aggregate ratio. In a certain range, the increasing mixing duration reduces the pumping pressure loss of HPC, but it increases the pressure bleeding rate of HPC, reduces stability of HPC during pumping and increases potential risk of blockage during pumping. Under different mixing procedures, both the viscosity constant of lubrication layer and the bleeding volume at 140 s are well correlated with the pumping pressure loss of HPC, serving as reliable indicators to evaluate the pumping performance of HPC.

Key words: mixing procedure, high-performance concrete, rheological property, pumping property, workability, lubrication layer

中图分类号:

TU528

申文凯, 元强, 纪友红, 曾荣, 李巍, 李富民, 史才军. 搅拌程序对高性能混凝土泵送性能的影响[J]. 硅酸盐通报, 2023, 42(3): 878-887.

SHEN Wenkai, YUAN Qiang, JI Youhong, ZENG Rong, LI Wei, LI Fumin, SHI Caijun. Effect of Mixing Procedure on Pumping Properties of High-Performance Concrete[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(3): 878-887.

参考文献

[1] JIAO D W, SHI C J, YUAN Q, et al. Effect of constituents on rheological properties of fresh concrete:a review[J]. Cement and Concrete Composites, 2017, 83: 146-159.
[2] 元强, 李白云, 史才军, 等. 混凝土泵送性能的流变学表征及预测综述[J]. 材料导报, 2018, 32(17): 2976-2985.
YUAN Q, LI B Y, SHI C J, et al. An overview on the prediction and rheological characterization of pumping concrete[J]. Materials Review, 2018, 32(17): 2976-2985 (in Chinese).
[3] KWON S H, JANG K P, KIM J H, et al. State of the art on prediction of concrete pumping[J]. International Journal of Concrete Structures and Materials, 2016, 10: 75-85.
[4] 刘豫, 史才军, 焦登武, 等. 新拌水泥基材料的流变特性、模型和测试研究进展[J]. 硅酸盐学报, 2017, 45(5): 708-716.
LIU Y, SHI C J, JIAO D W, et al. Rheological properties, models and measurements for fresh cementitious materials: a short review[J]. Journal of the Chinese Ceramic Society, 2017, 45(5): 708-716 (in Chinese).
[5] 李立辉, 陈喜旺, 李路明, 等. 自密实混凝土泵送压力变化规律分析[J]. 施工技术, 2016, 45(12): 52-56.
LI L H, CHEN X W, LI L M, et al. Analysis on the changes of pumping pressure of self-compacting concrete in pipes[J]. Construction Technology, 2016, 45(12): 52-56 (in Chinese).
[6] 汪东波. 高性能混凝土的流变性及泵送压力损失研究[D]. 重庆: 重庆大学, 2015.
WANG D B. Study on rheological property and pumping pressure loss of high-performance concrete[D]. Chongqing: Chongqing University, 2015 (in Chinese).
[7] KAPLAN D, LARRARD F, SEDRAN T. Design of concrete pumping circuit[J]. ACI Materials Journal, 2005, 102(2): 110-117.
[8] CHOI M, ROUSSEL N, KIM Y, et al. Lubrication layer properties during concrete pumping[J]. Cement and Concrete Research, 2013, 45: 69-78.
[9] FEYS D, KHAYAT K H, PEREZ-SCHELL A, et al. Prediction of pumping pressure by means of new tribometer for highly-workable concrete[J]. Cement and Concrete Composites, 2015, 57: 102-115.
[10] KAPLAN D, LARRARD F, SEDRAN T. Avoidance of blockages in concrete pumping process[J]. ACI Materials Journal, 2005, 102(3): 183-191.
[11] ROUSSEL N, OVARLEZ G, GARRAULT S, et al. The origins of thixotropy of fresh cement pastes[J]. Cement and Concrete Research, 2012, 42(1): 148-157.
[12] KHAYAT KH, ASSAAD JJ. Effect of w/cm and high-range water-reducing admixture on formwork pressure and thixotropy of self-consolidating concrete[J]. ACI Materials Journal, 2006, 103(3): 183-193.
[13] DILS J, SCHUTTER G, BOEL V. Influence of mixing procedure and mixer type on fresh and hardened properties of concrete: a review[J].Materials and Structures, 2012, 45(11): 1673-1683.
[14] MAZANEC O, LOWKE D, SCHIESSEL P. Mixing of high performance concrete: effect of concrete composition and mixing intensity on mixing time[J]. Materials and structures, 2010, 43(3): 357-365.
[15] SCHIESSEL P, MAZANEC O, LOWKE D. SCC and UHPC: effect of mixing technology on fresh concrete properties[C]//Advances in Construction Materials 2007. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007: 513-522.
[16] 申文凯, 元强, 纪友红, 等.剪切速率和温度对低水胶比水泥浆流变性能的影响[J]. 硅酸盐通报, 2023, 42(1): 48-56.
SHEN W K, YUAN Q, JI Y H, et al. Effect of shearing and temperature on the rheology of cement paste with low water-to-binder ratio[J]. Bulletin of the Chinese Ceramic Society, 2023, 42(1):48-56 (in Chinese).
[17] CHEN C T, STRUBLE L J. Influence of mixing sequence on cement-admixture interaction[J]. ACI Materials Journal, 2009, 106(6): 503-532.
[18] ESMAEILKHANIAN B, KHAYAT K H, YAHIA A, et al. Effects of mix design parameters and rheological properties on dynamic stability of self-consolidating concrete[J]. Cement and Concrete Composites, 2014, 54: 21-28.
[19] HEIRMAN G, VANDEWALLE L, et al. Integration approach of the Couette inverse problem of powder type self-compacting concrete in a wide-gap concentric cylinder rheometer[J]. Journal of non-Newtonian fluid mechanics, 2008, 150(2-3): 93-103.
[20] DE LARRARD F, FERRARIS F, SEDRAN T. Fresh concrete: a Herschel-Bulkley material[J]. Materials and structures, 1998, 31(7): 494-498.
[21] NGO T, KADRI H, BENNACER R, et al. Use of tribometer to estimate interface friction and concrete boundary layer composition during the fluid concrete pumping[J]. Construction and Building Materials, 2010, 24(7): 1253-1261.
[22] SHEN W K, SHI C J, KHAYAT K, et al. Change in fresh properties of high-strength concrete due to pumping[J]. Construction and Building Materials, 2021, 300: 124069.
[23] YAMMINE J, CHAOUCHE M, GUERINET M, et al. From ordinary rhelogy concrete to self compacting concrete: a transition between frictional and hydrodynamic interactions[J]. Cement and Concrete Research, 2008, 38(7): 890-896.
[24] FERNÀNDEZ-ALTABLE V, CASANOVA I. Influence of mixing sequence and superplasticiser dosage on the rheological response of cement pastes at different temperatures[J]. Cement and Concrete Research, 2006, 36(7): 1222-1230.
[25] ROUSSEL N. A thixotropy model for fresh fluid concretes: theory, validation and applications[J]. Cement and Concrete Research, 2006, 36(10): 1797-1806.
[26] FLATT R J, HOUST Y. A simplified view on chemical effects perturbing the action of superplasticizers[J]. Cement and concrete research, 2001, 31(8): 1169-1176.
[27] KIM J S, KWON S H, JANG K P, et al. Concrete pumping prediction considering different measurement of the rheological properties[J]. Construction and Building Materials, 2018, 171: 493-503.
[28] VANHOVE Y, KHAYAT K H. Forced bleeding test to assess stability of flowable concrete[J]. ACI Materials Journal, 2016, 113(6): 753-758.
[29] SECRIERU E, COTARDO D, MECHTCHERINE V, et al. Changes in concrete properties during pumping and formation of lubricating material under pressure[J]. Cement and Concrete Research, 2018, 108: 129-139.
[30] PARK C K, JANG K P, JEONG J H, et al. Suggestion of a model for filling coefficient of hydraulic cylinder in concrete pump[J]. Journal of the Korean Recycled Construction Resources Institute, 2016, 4(2): 195-202.
[31] FEYS D, KHAYAT K H, KHATIB R. How do concrete rheology, tribology, flow rate and pipe radius influence pumping pressure?[J]. Cement and Concrete Composites, 2016, 66: 38-46.
[32] ROGER D, PHILLIP B. Tests to establish concrete pumpability[J]. ACI Journal Proceedings, 1977, 74(5): 193-203.

搅拌程序对高性能混凝土泵送性能的影响

Effect of Mixing Procedure on Pumping Properties of High-Performance Concrete

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	丁超, 贾子杰, 王振华, 丁玉贤. 基于生命周期评价的UHPC碳排放控制潜力评估[J]. 硅酸盐通报, 2023, 42(4): 1242-1251.
[2]	李相国, 张乘, 吕阳, 李树国, 田博, 张成龙, 柯凯. 陶瓷抛光废料制备UHPC的耐久性能试验研究[J]. 硅酸盐通报, 2023, 42(4): 1418-1427.
[3]	张占强, 陈平, 李顺凯, 明阳, 刘荣进, 李航, 赵欢. 氧化镁膨胀剂对UHPC浆体早期孔结构演变的影响[J]. 硅酸盐通报, 2023, 42(3): 871-877.
[4]	赵立, 孙江涛, 吴定略, 李志堂, 何涛, 关业程, 沈卫国. 石屑湿喷混凝土的制备与性能研究[J]. 硅酸盐通报, 2023, 42(3): 1016-1024.
[5]	鲍志蕾, 李钢, 雷鑫, 江超, 于欢, 李凯钦. 氧化铝悬浮液流变性能及空间位阻影响机制[J]. 硅酸盐通报, 2023, 42(3): 1074-1080.
[6]	唐咸远, 马杰灵, 罗杰, 何滨冰, 陆澄剑. 钢渣微粉生态型超高性能混凝土力学性能影响因素分析[J]. 硅酸盐通报, 2023, 42(2): 607-617.
[7]	申文凯, 元强, 纪友红, 曾荣, 李巍, 李富民, 史才军. 剪切速率和温度对低水胶比水泥浆流变性能的影响[J]. 硅酸盐通报, 2023, 42(1): 48-56.
[8]	赵雅明, 张振, 王畔, 张明飞. 矿物掺合料对UHPC性能的影响[J]. 硅酸盐通报, 2022, 41(9): 3170-3175.
[9]	韦建刚, 陈荣, 黄伟, 陈镇东, 陈宝春, 陈培标, 朱卫东. 静水压力下超高性能混凝土的抗氯离子渗透性能[J]. 硅酸盐通报, 2022, 41(8): 2706-2715.
[10]	张粤, 王宏杰, 杨林, 陈鸿, 曹建新. 磷石膏粒径对湿拌砂浆性能及微观结构的影响研究[J]. 硅酸盐通报, 2022, 41(8): 2836-2843.
[11]	李申桐, 杨勇, 周栋梁, 胡聪, 刘金芝, 张志勇. 疏水改性聚醚合成聚羧酸减水剂及其降粘性能研究[J]. 硅酸盐通报, 2022, 41(7): 2251-2257.
[12]	董烨民, 胡传林. 不同养护制度下大掺量石灰石煅烧黏土UHPC早期水化及力学性能发展[J]. 硅酸盐通报, 2022, 41(6): 1879-1887.
[13]	刘开志, 龙勇, 陈露一, 李晨, 吴柏翰, 水中和, 余睿, 费顺鑫. 利用煅烧硅藻土制备高稳态超高性能混凝土基体研究[J]. 硅酸盐通报, 2022, 41(6): 1888-1895.
[14]	徐良, 程华才, 马子宸, 关博文. 机制砂岩性与级配对混凝土抗硫酸盐侵蚀性能的影响[J]. 硅酸盐通报, 2022, 41(6): 1973-1980.
[15]	李珂珂, 李龙, 何友林, 茹军辉, 余睿, 徐刘浏, 范定强, 王志宇. 超高性能混凝土流变特性及其调控研究[J]. 硅酸盐通报, 2022, 41(5): 1570-1577.