以高吸水性树脂为混凝土内养护剂的研究进展
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摘要
高吸水性树脂(superabsorbent polymer,SAP)作为一种新型内养护材料,具有优异的吸水和保水性能,在水泥基材料中得到了广泛应用。综述了SAP在水泥基材料中的应用及性能研究进展;论述了SAP的主要分类和吸水-释水机理;总结了SAP对混凝土的力学特性、收缩性能和耐久性等方面的研究成果;探讨了SAP研究和工程应用中存在的问题;并展望了SAP用作混凝土内养护剂的研究方向。综合分析表明:SAP的作用机理主要源于其三维网络孔结构;SAP通过调节混凝土内部温湿度来促进胶凝材料的水化,缓解混凝土收缩,提高了混凝土的耐久性;混凝土力学性能受SAP的掺量、粒径、额外引水量等因素的影响,但现有研究结果存在一定的差异性。
As a novel internal curing material,superabsorbent polymer(SAP)has been widely used in cement-based materials because of its excellent capacity in water absorption and retention.In this paper,application of the SAP with its influence on properties of cement-based materials was reviewed.Main classification of SAP and mechanism of water absorption and release were stated.Research progress of mechanical properties,shrinkage performance and durability of concrete with SAP were summarized.Problems in SAP research and engineering applications were discussed,and further research direction of SAP as a curing agent in concrete was prospected.Comprehensive study shows that the mechanism of SAP depends mainly on its three-dimensional network pore structure.SAP improves the durability of concrete by maintaining the internal temperature and humidity of concrete,promoting hydration of cementing materials and alleviating the shrinkage of concrete.Factors such as the content of SAP,particle size,and additional water diversion will affect the mechanical properties of concrete,but there are some differences in the existed research results.
As a novel internal curing material,superabsorbent polymer(SAP)has been widely used in cement-based materials because of its excellent capacity in water absorption and retention.In this paper,application of the SAP with its influence on properties of cement-based materials was reviewed.Main classification of SAP and mechanism of water absorption and release were stated.Research progress of mechanical properties,shrinkage performance and durability of concrete with SAP were summarized.Problems in SAP research and engineering applications were discussed,and further research direction of SAP as a curing agent in concrete was prospected.Comprehensive study shows that the mechanism of SAP depends mainly on its three-dimensional network pore structure.SAP improves the durability of concrete by maintaining the internal temperature and humidity of concrete,promoting hydration of cementing materials and alleviating the shrinkage of concrete.Factors such as the content of SAP,particle size,and additional water diversion will affect the mechanical properties of concrete,but there are some differences in the existed research results.
引文
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[19]JENSEN O M,LURA P.Techniques and materials for internal water curing of concrete[J].Materials and Structures,2006,39(9):817-825.
[20]CRAEYE B,GEIRNAERT M,de SCHUTTER G.Super absorbing polymers as an internal curing agent for mitigation of early-age cracking of high-performance concrete bridge decks[J].Construction and Building Materials,2011,25(1):1-13.
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[23]胡夏芬.改性丙烯酸SAP的制备及其性能研究[D].武汉:武汉理工大学,2014.HU Xiafen.Preparation and properties of modified acidbased superabsorbent[D].Wuhan:Wuhan University of Technology,2014.(in Chinese)
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[26]LI Mingjie,LI Zhongjin,ZHU Xiaofeng,et al.Research progress in super absorbent resin prepared from modification of natural polymers[J].Chemical Industry&Engineering Progress,2010,29(3):573-577.
[27]TAN Lei,LIU Zhengqin,LIU Yangyang.Study on preparation for super absorbent polymer using cotton waste[J].Advanced Materials Research,2012,602-604:704-707.
[28]BAO Yan,MA Jianzhong,LI Na.Preparation and properties of super absorbent acrylic resin[J].Journal of Functional Materials,2011,42(4):693-692.
[29]杨瑞成,杨娟,穆元春,等.聚丙烯酸高吸水性聚合物的制备与性能[J].兰州理工大学学报,2008,34(5):24-27.YANG Ruicheng,YANG Juan,MU Yuanchun.Preparation and performance of polyacrylic super-absorbent polymer[J].Journal of Lanzhou University of Technology,2008,34(5):24-27.(in Chinese)
[30]CHEN Riqing,JIANG Yu,CHU Fuxiang,et al.Study on preparation and properties of salt-tolerant superabsorbent resin through inverse-suspension polymerization[J].Chemistry&Industry of Forest Products,2006,26(1):28-32.
[31]JING Y,GUOPENG Z,BANGYU H,et al.Study on preparation and performance of different molecular structure super absorbent resin[J].Materials Review,2013,27:82-85.
[32]BEUSHAUSEN H,GILLMER M,ALEXANDER M.The influence of superabsorbent polymers on strength and durability properties of blended cement mortars[J].Cement and Concrete Composites,2014,52:73-80.
[33]CRAEYE B.Reduction of autogenous shrinkage of concrete by means of internal curing[D].Ghent:Ghent University,2006.
[34]ESTEVES L P,CACHIM P,FERREIRA V M.Mechanical properties of cement mortars with superabsorbent polymers[J].Advanced Construction Materials,2007:451-462.
[35]王嘉.高吸水性树脂对超高性能混凝土性能的影响[D].长沙:湖南大学,2012.WANG Jia.The effects of super absorbent polymer on the performance of ultra high performance concrete[D].Changsha:Hunan University,2012.(in Chinese)
[36]钟佩华.高吸水性树脂(SAP)对高强混凝土自收缩性能的影响及作用机理[D].重庆:重庆大学,2015.ZHONG Peihua.Study on the autogenous shrinkage and mechanism of high strength concrete with super absorbent polymer[D].Chongqing:Chongqing University,2015.(in Chinese)
[37]YAO Yao,ZHU Yu,YANG Yingzi.Incorporation superabsorbent polymer(SAP)particles as engineered cementitious composites(ECC)[J].Construction and Building Materials,2012,28(1):139-145.
[38]张磊.添加高吸水性树脂混凝土相关性能与绿色施工应用研究[D].天津:天津大学,2016.ZHANG Lei.Research on the related properties of super absorbent polymer concrete and the application of green construction[D].Tianjin:Tianjin University,2016.(in Chinese)
[39]阎培渝.高强自密实混凝土的减缩措施[J].硅酸盐学报,2015,43(4):363-367.YAN Peiyu.Shrinkage-reducing measurement of high strength self-compacting concrete[J].Journal of the Chinese Ceramic Society,2015,43(4):363-367.(in Chinese)
[40]IGARASHI S,WATANABE A.Experimental study on prevention of autogenous deformation by internal curing using super-absorbent polymer particles[C]//Proceedings of International RILEM Conference on Volume Changes of Hardening Concrete:Testing and Mitigation.Lyngby,Denmark:Technical Uriverslty of Demark,2006:77-86.
[41]LURA P,YE G,CNUDDE V,et al.Preliminary results about 3Ddistribution of super-absorbent polymers in mortars[C]//International RILEM Conference.Microstructure-Related Durability of Cementitious Composites.[S.l.:s.n.],2008:13-15.
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[2]王德辉,史才军,吴林妹.超高性能混凝土在中国的研究和应用[J].硅酸盐通报,2016,35(1):141-149.WANG Dehui,SHI Caijun,WU Linmei.Research and applications of ultra-high performance concrete(UH-PC)in China[J].Bulletin of the Chinese Ceramic Society,2016,35(1):141-149.(in Chinese)
[3]周宇飞.高强混凝土内养护机制与控制技术研究[D].武汉:武汉理工大学,2008.ZHOU Yufei.Research on internal curing mechanism and control technology of high strength concrete[D].Wuhan:Wuhan University of Technology,2008.(in Chinese)
[4]钟含.高性能混凝土强度与耐久性研究[D].郑州:郑州大学,2017.ZHONG Han.Study on strength and durability of high performance concrete[D].Zhengzhou:Zhengzhou University,2017.(in Chinese)
[5]董方园,郑山锁,宋明辰,等.高性能混凝土研究进展Ⅱ:耐久性能及寿命预测模型[J].材料导报,2018,32(2):496-502.DONG Fangyuan,ZHENG Shansuo,SONG Mingchen,et al.Research progress of high performance concreteⅡ:durability and life prediction model[J].Materials Reports,2018,32(2):496-502.(in Chinese)
[6]JENSEN O M,HANSEN P F.Water-entrained cement-based material:Ⅱ.implementation and experimental results[J].Cement and Concrete Research,2002,32(6):973-978.
[7]张珍林.高吸水性树脂对高强混凝土早期减缩效果及机理研究[D].北京:清华大学,2013.ZHANG Zhenlin.Investigation on the shrinkage-reducing effect of super-absorbent polymer in high-strength concrete and its mechanism[D].Beijing:Tsinghua U-niversity,2013.(in Chinese)
[8]孔祥明,张珍林.高吸水性树脂对高强混凝土自收缩的减缩机理[J].硅酸盐学报,2014,42(2):150-155.KONG Xiangming,ZHANG Zhenlin.Shrinkage-reducing mechanism of super-absorbent polymer in highstrength concrete[J].Journal of the Chinese Ceramic Society,2014,42(2):150-155.(in Chinese)
[9]蔡永涛.超强吸水性树脂SAP混凝土抗冻性能的研究[D].济南:山东建筑大学,2011.CAI Yongtao.The research on the frost resistance of concrete with super absorbent polymer[D].Jinan:Shandong Jianzhu University,2011.(in Chinese)
[10]SHANG J,FLURY M,HARSH J B,et al.Contact angles of aluminosilicate clays as affected by relative humidity and exchangeable cations[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2010,353(1):1-9.
[11]JENSEN O M.Water-entrained cement-based materials:Ⅰ.principles and theoretical background[J].Cement and Concrete Research,2001,31(4):647-654.
[12]高小建,李双欣.微波养护对掺矿渣超高性能混凝土力学性能的影响及机理[J].材料导报,2019,33(2):271-276.GAO Xiaojian,LI Shuangxin.Effects of microwave curing on the mechanical properties of ultra-high performance concrete and affecting mechanism[J].Materials Reports,2019,33(2):271-276.(in Chinese)
[13]AKCAY B,TASDEMIR M A.Effect of distribution of lightweight aggregate on internal curing of concrete[J].Cement&Concrete Composites,2010,32(8):611-616.
[14]AKCAY B,TASDEMIR M A.Optimisation of using lightweight aggregates in mitigating autogenous deformation of concrete[J].Construction and Building Materials,2009,23(1):353-363.
[15]高美蓉,秦鸿根,庞超明.高性能内养护技术的研究现状[J].混凝土与水泥制品,2009(3):9-12.GAO Meirong,QIN Honggen,PANG Chaoming.Research status on internal curing of high performance concrete[J].China Concrete and Cement Products,2009(3):9-12.(in Chinese)
[16]KLEMM A J,SIKORA K S.The effect of superabsorbent polymers(SAP)on microstructure and mechanical properties of fly ash cementitious mortars[J].Construction and Building Materials,2013,49:134-143.
[17]MECHTCHERINE V,GORGES M,SCHROEFL C,et al.Effect of internal curing by using superabsorbent polymers(SAP)on autogenous shrinkage and other properties of a high-performance fine-grained concrete:results of a RILEM round-robin test[J].Materials and Structures,2014,47(3):541-562.
[18]SENFF L,MODOLO R C E,ASCENSO G,et al.Development of mortars containing superabsorbent polymer[J].Construction&Building Materials,2015,95:575-584.
[19]JENSEN O M,LURA P.Techniques and materials for internal water curing of concrete[J].Materials and Structures,2006,39(9):817-825.
[20]CRAEYE B,GEIRNAERT M,de SCHUTTER G.Super absorbing polymers as an internal curing agent for mitigation of early-age cracking of high-performance concrete bridge decks[J].Construction and Building Materials,2011,25(1):1-13.
[21]马斐,程冬炳,王颖.聚丙烯酸类高吸水性树脂的合成及吸水机理研究进展[J].武汉工程大学学报,2011,33(1):4-9,14.MA Fei,CHENG Dongbing,WANG Ying.Research trend on reaction principle and water absorption mechanism of polyacrylic acid superabsorbent polymers[J].Journal of Wuhan Institute of Technology,2011,33(1):4-9,14.(in Chinese)
[22]丁以兵.高性能混凝土自养护技术研究[D].合肥:合肥工业大学,2006.DING Yibing.A study on self-curing for high-performance concrete[D].Hefei:Hefei University of Technology,2006.(in Chinese)
[23]胡夏芬.改性丙烯酸SAP的制备及其性能研究[D].武汉:武汉理工大学,2014.HU Xiafen.Preparation and properties of modified acidbased superabsorbent[D].Wuhan:Wuhan University of Technology,2014.(in Chinese)
[24]张立颖,廖朝东,尹沾合.高吸水树脂的吸水机理及吸盐性的改进[J].应用化工,2009,38(2):282-285.ZHANG Liying,LIAO Chaodong,YIN Zhanhe.Water absorbing mechanism and improvement of salt tolerance of superabsorbent polymer[J].Applied Chemical Industry,2009,38(2):282-285.(in Chinese)
[25]刘篙,李磊.合成高吸水聚合物的进展[J].高分子材料科学与工程,2001,17(3):11-14.LIU Gao,LI Lei.The development on synthesis of superabsorbents[J].Polymeric Materials Science&Engineering,2001,17(3):11-14.(in Chinese)
[26]LI Mingjie,LI Zhongjin,ZHU Xiaofeng,et al.Research progress in super absorbent resin prepared from modification of natural polymers[J].Chemical Industry&Engineering Progress,2010,29(3):573-577.
[27]TAN Lei,LIU Zhengqin,LIU Yangyang.Study on preparation for super absorbent polymer using cotton waste[J].Advanced Materials Research,2012,602-604:704-707.
[28]BAO Yan,MA Jianzhong,LI Na.Preparation and properties of super absorbent acrylic resin[J].Journal of Functional Materials,2011,42(4):693-692.
[29]杨瑞成,杨娟,穆元春,等.聚丙烯酸高吸水性聚合物的制备与性能[J].兰州理工大学学报,2008,34(5):24-27.YANG Ruicheng,YANG Juan,MU Yuanchun.Preparation and performance of polyacrylic super-absorbent polymer[J].Journal of Lanzhou University of Technology,2008,34(5):24-27.(in Chinese)
[30]CHEN Riqing,JIANG Yu,CHU Fuxiang,et al.Study on preparation and properties of salt-tolerant superabsorbent resin through inverse-suspension polymerization[J].Chemistry&Industry of Forest Products,2006,26(1):28-32.
[31]JING Y,GUOPENG Z,BANGYU H,et al.Study on preparation and performance of different molecular structure super absorbent resin[J].Materials Review,2013,27:82-85.
[32]BEUSHAUSEN H,GILLMER M,ALEXANDER M.The influence of superabsorbent polymers on strength and durability properties of blended cement mortars[J].Cement and Concrete Composites,2014,52:73-80.
[33]CRAEYE B.Reduction of autogenous shrinkage of concrete by means of internal curing[D].Ghent:Ghent University,2006.
[34]ESTEVES L P,CACHIM P,FERREIRA V M.Mechanical properties of cement mortars with superabsorbent polymers[J].Advanced Construction Materials,2007:451-462.
[35]王嘉.高吸水性树脂对超高性能混凝土性能的影响[D].长沙:湖南大学,2012.WANG Jia.The effects of super absorbent polymer on the performance of ultra high performance concrete[D].Changsha:Hunan University,2012.(in Chinese)
[36]钟佩华.高吸水性树脂(SAP)对高强混凝土自收缩性能的影响及作用机理[D].重庆:重庆大学,2015.ZHONG Peihua.Study on the autogenous shrinkage and mechanism of high strength concrete with super absorbent polymer[D].Chongqing:Chongqing University,2015.(in Chinese)
[37]YAO Yao,ZHU Yu,YANG Yingzi.Incorporation superabsorbent polymer(SAP)particles as engineered cementitious composites(ECC)[J].Construction and Building Materials,2012,28(1):139-145.
[38]张磊.添加高吸水性树脂混凝土相关性能与绿色施工应用研究[D].天津:天津大学,2016.ZHANG Lei.Research on the related properties of super absorbent polymer concrete and the application of green construction[D].Tianjin:Tianjin University,2016.(in Chinese)
[39]阎培渝.高强自密实混凝土的减缩措施[J].硅酸盐学报,2015,43(4):363-367.YAN Peiyu.Shrinkage-reducing measurement of high strength self-compacting concrete[J].Journal of the Chinese Ceramic Society,2015,43(4):363-367.(in Chinese)
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