新分子结构混凝土引气剂及其合成制备方法研究进展
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摘要
基于混凝土引气剂界面活性、起泡原理与稳泡原理出发,从分子结构与合成制备角度介绍了国内外经典的引气剂分子结构类型,阐述了最新国内外新分子结构引气剂及其合成制备方法,讨论并分析了最新国内外新分子结构引气剂在混凝土中所起的作用及其对混凝土工作性、抗冻性等耐久性性能改善与提高的具体影响,叙述和比较了国内外引气剂的优点与不足,提出了"理想"引气剂分子结构具备的要素和特征。有助于更好地从分子结构角度设计并研发出具有优异性能的新型结构引气剂,并解决低坍落度塑性混凝土和无坍落度干硬性混凝土难引气等问题,有利于更好解决混凝土工作性、抗冻性等耐久性问题。
Based on the interfacial activity, foaming principle and foam stabilization principle of air entraining agent in concrete, the classical molecular structures of air entraining agent from the perspective of molecular structure and synthetic preparation are introduced, the latest domestic and international new molecular structure of air entraining agent and its synthetic preparation methods are expounded, and the roles of the latest domestic and international new molecular structure of air entraining agent in concrete and its specific impact on the improvement durability of workability and frost resistance in concrete are discussed and analyzed. In addition, the advantages and disadvantages of air entraining agents at home and abroad were reviewed and compared, and the elements and characteristics of molecular structure of the "ideal" air entraining agent were proposed. The results help to better design and develop a new type of structural air entraining agent with excellent performance from the molecular structure of point, which helps to solve problems of air entraining agent in the low-slump plastic and the non-slump drying hard concrete, such as the problem of air induction, and it is beneficial to better solve the durability problems such as concrete workability and frost resistance.
Based on the interfacial activity, foaming principle and foam stabilization principle of air entraining agent in concrete, the classical molecular structures of air entraining agent from the perspective of molecular structure and synthetic preparation are introduced, the latest domestic and international new molecular structure of air entraining agent and its synthetic preparation methods are expounded, and the roles of the latest domestic and international new molecular structure of air entraining agent in concrete and its specific impact on the improvement durability of workability and frost resistance in concrete are discussed and analyzed. In addition, the advantages and disadvantages of air entraining agents at home and abroad were reviewed and compared, and the elements and characteristics of molecular structure of the "ideal" air entraining agent were proposed. The results help to better design and develop a new type of structural air entraining agent with excellent performance from the molecular structure of point, which helps to solve problems of air entraining agent in the low-slump plastic and the non-slump drying hard concrete, such as the problem of air induction, and it is beneficial to better solve the durability problems such as concrete workability and frost resistance.
引文
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[4]董玉文,陈聪,郑磊,等.引气剂对冻融作用后混凝土力学性能的影响[J].混凝土与水泥制品,2019(6):14-16.
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[9]LANGE A,PLANK J.Contribution of non-adsorbing polymers to cement dispersion[J].Cement and Concrete Research,2016,79:131-136.
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[14]KHAYAT K H.Frost durability of concrete containing viscosity-modifying admixtures[J].Materials Journal,1995,92(6):625-633.
[15]王朝强,谭克锋,戴传彬,等.引气剂对粉煤灰基干混砂浆性能的影响[J].混凝土与水泥制品,2014(4):22-27.
[16]KOBAYASHI M,NAKAKULO E,KODAMA K,et al.Frost resistance of superplasticized concrete[J].Special Publication,1981,68:269-282.
[17]BARFIELD M,GHAFOORI N.Air-entrained selfconsolidating concrete:A study of admixture sources[J].Construction and Building Materials,2012,26(1):490-496.
[18]LEY M T,CHANCEY R,JUENGER M C G,et al.The physical and chemical characteristics of the shell of airentrained bubbles in cement paste[J].Cement and Concrete Research,2009,39(5):417-425.
[19]MAYERCSIK N P,VANDAMME M,KURTIS K E.Assessing the efficiency of entrained air voids for freeze-thaw durability through modeling[J].Cement and Concrete Research,2016,88:43-59.
[20]DHIR R K,MCCARTHY M J,LIMBACHIYA M C,et al.Pulverized fuel ash concrete:air entrainment and freeze/thaw durability[J].Magazine of Concrete Research,1999,51(1):53-64.
[21]MACINNIS C,RACIC D.The effect of superplasticizers on the entrained air-void system in concrete[J].Cement and Concrete Research,1986,16(3):345-352.
[22]OUYANG X,GUO Y,QIU X.The feasibility of synthetic surfactant as an air entraining agent for the cement matrix[J].Construction and Building Materials,2008,22(8):1774-1779.
[23]MENGER F M,KEIPER J S,AZOV V.Gemini surfactants with acetylenic spacers[J].Langmuir,2000,16(5):2062-2067.
[24]WANG M,HAN Y,QIAO F,et al.Aggregation behavior of a gemini surfactant with a tripeptide spacer[J].Soft Matter,2015,11(8):1517-1524.
[25]COLLEPARDI M.Superplasticizers and air entraining agents:state of the art and future needs[J].Special Publication,1994,144:399-416.
[26]陈建奎,王栋民.高性能混凝土(HPC)配合比设计新法-全计算法[J].硅酸盐学报,2000,28(2):194-198.
[27]任雪梅,郭诚,郝挺宇.KF-1高水溶性引气剂的研制及其应用[C].全国混凝土外加剂应用技术专业委员会年会.2009.
[28]朱蓓蓉,杨全兵.SJ-2新型引气剂及引气混凝土性能[J].混凝土,2001(4):21-24.
[29]马锋玲,李舜才,高曙光,等.SK-H混凝土高性能引气剂研制[J].中国水利水电科学研究院学报,2006,4(2):119-122.
[30]丁蓓,钟海涛,刘加平.聚羧酸超塑化剂专用引气剂的研制与性能[J].水利水电施工,2007,3:50.
[31]唐修生,林宇辉,温金保,等.聚醚类引气剂的合成研究[J].新型建筑材料,2016(11):90-93.
[32]MENDES J C,MORO T K,FIGUEIERDO A S,et al.Mechanical,rheological and morphological analysis of cementbased composites with a new LAS-based air entraining agent[J].Construction and Building Materials,2017,145:648-661.
[33]CHEN J,QIAN M,GAO N,et al.Sulfonic gemini surfactants:Synthesis,properties and applications as novel air entraining agents for concrete[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2017,522:593-600.
[2]ANSARI F,ZHANG Z,LUKE A,et al.Effects of synthetic air entraining agents on compressive strength of Portland cement concrete:mechanism of interaction and remediation strategy[R].United States.Federal Highway Administration,1999.
[3]DU L,FOLLIARD K J.Mechanisms of air entrainment in concrete[J].Cement and concrete research,2005,35(8):1463-1471.
[4]董玉文,陈聪,郑磊,等.引气剂对冻融作用后混凝土力学性能的影响[J].混凝土与水泥制品,2019(6):14-16.
[5]秦菱,武卫,王思扬,等.基于孔结构分析的引气混凝土盐冻耐久性研究[J].混凝土与水泥制品,2015(10):27-31.
[6]RATH S,ATTACHAIYAWUTH A,OUCHI M.Fineness of air bubbles affected by mixing procedure in mortar in selfcompacting concrete[C].JCI Proceedings of the Japan Concrete Institute,2016,38:1413-1418.
[7]PIEKARCZYK B.The type of air-entraining and viscosity modifying admixtures and porosity and frost durability of high performance self-compacting concrete[J].Construction and Building Materials,2013,40:659-671.
[6]OZAWA K.High-performance concrete based on the durability design of concrete structures[C].Proc.of the Second East Asia-Pacific Conference on Structural Engineering and Construction,1989.
[9]LANGE A,PLANK J.Contribution of non-adsorbing polymers to cement dispersion[J].Cement and Concrete Research,2016,79:131-136.
[10]LIEW K M,SOJOBI A O,ZHANG L W.Green concrete:Prospects and challenges[J].Construction and Building Materials,2017,156:1063-1095.
[11]HUANG F,LI H,YI Z,et al.The rheological properties of self-compacting concrete containing superplasticizer and airentraining agent[J].Construction and Building Materials,2018,166:833-838.
[12]KHAYAT K H,ASSAAD J.Air-void stability in selfconsolidating concrete[J].ACI Materials Journal,2002,99(4):408-416.
[13]BAITRUS J P,LACOUNT R B.Measurement of adsorption of air-entraining admixture on fly ash in concrete and cement[J].Cement and concrete research,2001,31(5):819-824.
[14]KHAYAT K H.Frost durability of concrete containing viscosity-modifying admixtures[J].Materials Journal,1995,92(6):625-633.
[15]王朝强,谭克锋,戴传彬,等.引气剂对粉煤灰基干混砂浆性能的影响[J].混凝土与水泥制品,2014(4):22-27.
[16]KOBAYASHI M,NAKAKULO E,KODAMA K,et al.Frost resistance of superplasticized concrete[J].Special Publication,1981,68:269-282.
[17]BARFIELD M,GHAFOORI N.Air-entrained selfconsolidating concrete:A study of admixture sources[J].Construction and Building Materials,2012,26(1):490-496.
[18]LEY M T,CHANCEY R,JUENGER M C G,et al.The physical and chemical characteristics of the shell of airentrained bubbles in cement paste[J].Cement and Concrete Research,2009,39(5):417-425.
[19]MAYERCSIK N P,VANDAMME M,KURTIS K E.Assessing the efficiency of entrained air voids for freeze-thaw durability through modeling[J].Cement and Concrete Research,2016,88:43-59.
[20]DHIR R K,MCCARTHY M J,LIMBACHIYA M C,et al.Pulverized fuel ash concrete:air entrainment and freeze/thaw durability[J].Magazine of Concrete Research,1999,51(1):53-64.
[21]MACINNIS C,RACIC D.The effect of superplasticizers on the entrained air-void system in concrete[J].Cement and Concrete Research,1986,16(3):345-352.
[22]OUYANG X,GUO Y,QIU X.The feasibility of synthetic surfactant as an air entraining agent for the cement matrix[J].Construction and Building Materials,2008,22(8):1774-1779.
[23]MENGER F M,KEIPER J S,AZOV V.Gemini surfactants with acetylenic spacers[J].Langmuir,2000,16(5):2062-2067.
[24]WANG M,HAN Y,QIAO F,et al.Aggregation behavior of a gemini surfactant with a tripeptide spacer[J].Soft Matter,2015,11(8):1517-1524.
[25]COLLEPARDI M.Superplasticizers and air entraining agents:state of the art and future needs[J].Special Publication,1994,144:399-416.
[26]陈建奎,王栋民.高性能混凝土(HPC)配合比设计新法-全计算法[J].硅酸盐学报,2000,28(2):194-198.
[27]任雪梅,郭诚,郝挺宇.KF-1高水溶性引气剂的研制及其应用[C].全国混凝土外加剂应用技术专业委员会年会.2009.
[28]朱蓓蓉,杨全兵.SJ-2新型引气剂及引气混凝土性能[J].混凝土,2001(4):21-24.
[29]马锋玲,李舜才,高曙光,等.SK-H混凝土高性能引气剂研制[J].中国水利水电科学研究院学报,2006,4(2):119-122.
[30]丁蓓,钟海涛,刘加平.聚羧酸超塑化剂专用引气剂的研制与性能[J].水利水电施工,2007,3:50.
[31]唐修生,林宇辉,温金保,等.聚醚类引气剂的合成研究[J].新型建筑材料,2016(11):90-93.
[32]MENDES J C,MORO T K,FIGUEIERDO A S,et al.Mechanical,rheological and morphological analysis of cementbased composites with a new LAS-based air entraining agent[J].Construction and Building Materials,2017,145:648-661.
[33]CHEN J,QIAN M,GAO N,et al.Sulfonic gemini surfactants:Synthesis,properties and applications as novel air entraining agents for concrete[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2017,522:593-600.