高贝利特水泥高性能混凝土的研究
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摘要
本研究以高贝利特水泥(HBC)为主要胶凝材料,成功配制出了强度等级为C50~C80的高贝利特水泥高性能混凝土,该级别范围内的高贝利特水泥高性能混凝土初始坍落度≥180mm,90min坍落度损失≤40mm,且抗冻等级≥F300,抗渗等级≥W25,氯离子渗透值<1000库仑。并与普通水泥(OPC)混凝土作对比,较系统地研究了高贝利特水泥高性能混凝土的工作性能、物理力学性能、耐久性能以及亚微结构等,为低钙高性能硅酸盐水泥的产业化以及工程应用提供了技术支撑。
     1.对高贝利特水泥高性能混凝土工作性能的研究结果表明,高贝利特水泥与高效减水剂具有良好的适应性,表现为初始流动度较大,经时损失较小,具有明显的饱和点且饱和点掺量较小;此外,优质的矿物掺和料如一级粉煤灰能明显改善HBC混凝土的工作性能;更为突出的是HBC混凝土在低水胶比的情况下表现出更为优异的工作性,这一特性预示着高贝利特水泥更适宜配制水胶比很低的超高强混凝土。
     2.研究了高贝利特水泥高性能混凝土的抗压、抗折、劈拉、弹性模量等一系列物理力学性能,结果表明,和OPC混凝土相比,HBC混凝土早期(3d、7d)抗压强度、抗折强度、劈拉强度、弹性模量较低,但随着龄期的增加,HBC混凝土28d诸项强度基本与之持平,90d则全面超过OPC混凝土;探讨了高贝利特水泥高性能混凝土水胶比与28d抗压强度的关系以及C50~C80强度范围内高贝利特水泥高性能混凝土7d强度与28d强度的关系;此外,对粉煤灰掺量及品种对高贝利特水泥高性能混凝土抗压强度的影响也进行了研究。
     3.通过对高贝利特水泥高性能混凝土的一系列耐久性能包括抗冻、抗渗、抗碳化、抗侵蚀、干缩以及其各龄期的亚微结构等的研究,得出:高贝利特水泥高性能混凝土具有良好的抗冻、抗渗、抗碳化及抗侵蚀性能并且干缩较小。
     4.孔结构研究表明:和OPC混凝土相比,HBC混凝土早期(3d、7d)最可几孔径较大,但随着龄期的增加,其后期最可几孔径大幅度下降,90d、180d时则小于OPC混凝土的最可几孔径;随着龄期的增加,HBC和OPC混凝土的多害孔急剧减少,而少害孔和无害孔则大幅度增加,其中尤以HBC混凝土其孔径小于20nm的无害孔较OPC混凝土增加最多,这是HBC混凝土后期诸项性能优良的主要原因之一。
R&D of high strength HPC with strength grade C50 - C80 was conducted using high belite cement (abbreviated as HBC) as the main component of cementitious material. The workability, physical mechanical properties, durability and sub-microstructure of HBC concrete have been researched systematically in comparison with HBC using ordinary Portland cement (abbreviated as OPC). The resultant HBC concrete possesses the properties of initial slump>180mm,slump loss at 90min< 40mm,freeze resistance grade>F300,permeability resistance grade>W25 and Cl- penetration value <1000 coulom and the following research results have been obtained.
    1. The results of research on the workability of HBC concrete show that HBC concrete, when compared with OPC concrete, has excellent compatibility with superplasticizer, in terms of better initial fluidity, less slump loss, definite saturation point and less dosage at saturation point. In addition, good mineral admixture such as I class fly ash can obviously improve the workability of HBC concrete. Moreover, HBC concrete exhibits more excellent workability under the condition of low w/c ratio, which indicates HBC is more suitable for making super high strength concrete whose w/c ratio is very low.
    2. The research results indicate that the physical mechanical properties of HBC concrete such as compressive strength, flexural strength, splitting tensile strength, elasticity modulus and etc. is equivalent to that of OPC concrete at age of 28d and remarkably surpasses OPC concrete at 90d though its early age strength (3d, 7d) is relatively lower. Moreover, the relation of w/c ratio of HBC with compressive strength as well as strength at 7d with 28d (C50 - C80) has been established and the effect of the dosage and type of fly ash on compressive strength of HBC has also been studied.
    3. The results of research on durability of HBC concrete including resistance of freeze-thaw, permeability, carbonation, corrosion as well as shrinkage and sub-microstructure structure exhibit HBC concrete has good properties of freeze-thaw resistance, permeability resistance, carbonation resistance, corrosion resistance and less shrinkage compared with OPC concrete.
    4. The study on pore structure shows that the incremental pore size of HBC concrete (3d, 7d) is relatively larger, approximately equivalent at 28d, but smaller at 90d and180d compared with OPC concrete. The harmful pore of both HBC and OPC concrete decreases sharply but little harmful and harmless pores increase greatly, especially the harmless pore whose pore size is less than 20nm for HBC concrete increases much more than OPC concrete, which can explain why HBC concrete possesses excellent long term properties.
引文
[1] P.K.Mehta,耐久性——影响未来的关键问题,在21世纪建造耐久的混凝土结构,覃维祖译,清华大学土木工程系建筑材料研究所,2002,pp.11
    [2] 唐明述,混凝土碱—集料反应的研究,第七届国际碱—集料反应会议情况介绍
    [3] 张坤,中国老坝告急,中国青年报,1998-2-26(6)
    [4] 吴中伟、廉慧珍,高性能混凝土,中国铁道出版社,pp.8-10
    [5] 名和丰春,高贝利特水泥的现状,贝利特水泥及其应用(专辑),中国建材院情报所编,pp.16-18
    [6] H.Uchikawa, Word Cement, Vol. 25(9), 1994, pp66-78; Vol. 25(10), pp49-56
    [7] H.Uchikawa, Proc. 9th ICCC, New Dehli, Special lecture, Vol.Ⅲ, 1992
    [8] Chatterjee, A. K High belite cements—present status and future technological options: Part Ⅰ Cement and Concrete Research 268 Aug 1996 pp.1213-1225
    [9] Fukuda, Koichiro and Ito, Suketoshi, Journal of the American Ceramic Society v 82 n 3 1999 American Ceramic Soc pp.637-640
    [10] 隋同波,低热高性能硅酸盐水泥的研究,中国建筑材料科学研究院研究生博士论文,2001,pp.121
    [11] A.K. Chatterjee, Cement and Concrete Research, Vol.26, No.8, 1996, pp.1213-1237
    [12] C.D. Lawrence, in "Lea's Chemistry of Cement and Concrete", Fourth Edition, Ed. by Peter C. Hewlett,John Wiley & Sons Inc.,New York.Toronto,1997, pp.437-461
    [13] R K. Mehta, World Cement Technology, Nov.,1980, pp.300-305
    [14] I. Jawed, J. Skalny and J. F.Young, Hydration of Portland Cement, in "Structure and Performance in Cements",Ed. by P. Barnes, Applied Science Publishers, London, 1983, pp.237
    [15] 朱清江,高强高性能混凝土的研制及应用,中国建材工业出版社,pp.165
    [16] W.C. Hansen, Proc. 4th ICCC, Vol.2, Washington, 1960, pp. 1800
    [17] R.H.Bogue,《波特兰水泥化学》下册,杨德骧译,pp.229
    [18] L.A. Zakharov, Building Research Station Translation 1579, Aiastan,1969, Erevan: Chap.Ⅲ-Ⅴ.
    [19] L.A. Zakharov, Proc. 6th ICCC, supplementary Paper, Section Ⅲ, Moscow, 1974.
    [20] 《贝利特水泥系列》,国家建材局情报所,1978.
    [21] Deng Junan, Ge Wenmin, Su Muzhen and Li Xiuying, Proc. 7th ICCC, Vol.Ⅳ, 1980, Paris, pp.361-386
    [22] I. Kapralok and F. Hanic, Cement and Concrete Research, Vol. 19, No.1,1989, pp.89-102
    [23] 沈威,黄文熙,闵盘荣编著,《水泥工艺学》,武汉工业大学出版社,1991.7,pp.282-285
    
    
    [24] 松本范义等,使用高贝利特水泥的高流态混凝土的同时实验,第49届水泥技术大会报告论文集(社)水泥协会pp,336~341,1995
    [25] 田中光勇等,高流态混凝土用高贝利特水泥的质量标准及其使用规范的研究(1~5),日本建筑学会大会报告概要(北海道)材料施工A、(社)日本建筑学会pp.221~230,1995
    [26] 使用高贝利特系水泥的高流态混凝土的性能评价研究,建设省建筑研究所(社)水泥协会平成7年3月
    [27] 鹿毛、忠继等,使用高贝利特水泥的高流态混凝土的耐久性,贝利特水泥及其应用(专辑),中国建材院情报所编,pp.58-61
    [28] 内田清彦,以建筑的高性能化为目标—使用高贝利特水泥的建筑用高性能混凝土,贝利特水泥及其应用(专辑),中国建材院情报所编,pp.34-38
    [29] 丸冈正知,贝利特水泥在高强混凝土方面的应用,贝利特水泥及其应用(专辑),中国建材院情报所编,pp.67
    [30] 浅贺等,养护温度对低发热水泥的各种构成矿物水化反应的影响,水泥·混凝土论文集,No 45,pp.58~63(1991)
    [31] 长谷川淳等,养护对使用高贝利特水泥的高流态混凝土强度增长的影响,贝利特水泥及其应用(专辑),中国建材院情报所编,pp.57
    [32] 长谷川淳等,养护对使用高贝利特水泥的高流态混凝土强度增长的影响,贝利特水泥及其应用(专辑),中国建材院情报所编,pp.56
    [33] 鹿毛、忠继等,使用高贝利特水泥的高流态混凝土的耐久性,贝利特水泥及其应用(专辑),中国建材院情报所编,pp.60
    [34] 丸冈正知,贝利特水泥在高强混凝土方面的应用,贝利特水泥及其应用(专辑),中国建材院情报所编,pp.67
    [35] H.S. Lew & T.W. Reichard, Mechanical Properties of Concrete at Early Age, J. of ACI71-10, pp.533~542,Otc. 1978
    [36] 黑田保等,使用高贝利特水泥的混凝土的基本性状,水泥·混凝土论文集,No 47,PP.148~153(1993)
    [37] 丸冈正知,贝利特水泥在高强混凝土方面的应用,贝利特水泥及其应用(专辑),中国建材院情报所编,pp.67
    [38] 中国建材院,国家“九五”重点攻关项目“混凝土新型胶凝材料的研究”专题项目,混凝土性能研究及评价报告,2000,pp.38
    [39] 隋同波、刘克忠、王晶、郭随华等,高贝利特水泥混凝土性能的研究,硅酸盐学报,No.4,1999,pp488~492
    [40] SUI Tongbo, GUO Suihua, LIU Kezhong, et al, Research on High Belite Cement, Part Ⅰ, 4th,
    
    Beijing International Symposium on Cement and Concrete, October 26-29,1998
    [41] SUI Tongbo, LIU Kezhong, WANG Jing, et al, Research on High Belite Cement, PartⅡ, ibid, October 26-29,1998
    [42] Sidney Mimdess, J. Francis Yong 著,方秋清、杜如楼等译,混凝土,中国建筑工为出版社,1989,pp.105
    [43] 项翥行,建筑工程常用材料试验手册,中国建筑工业出版社,1998,pp.235-240
    [44] 中国土木工程学会高强混凝土委员会,高强混凝土结构设计与施工指南,北京:中国建筑工业出版社,1994
    [45] 王玉堂,C80级高性能泵送混凝土的配制及试验研究,混凝土,No.6,2000,pp.12
    [46] 吴中伟、廉慧珍,高性能混凝土,中国铁道出版社,pp.252
    [47] Sellevold E J, Jusmess H, Smeplass S, et al. Selected Properties of High Performance Concrete. Advance in Cement and Concrete. Engineering Foundation Conference, 1994
    [48] Dyngeland T, Hansen E Aa, Holand I, et al. HSC Phase 3—Report 1.1Comentary to NS3473. SINTEF Report STF70 A94043. Trondheim, Norway, 1993
    [49] Hansen E A (Norway), Leivo M (Finland), Rodriguez J (Spain), Cather R (UK). Mechanical Properties of High Strength Concrete-Influence of Test Conditions and Constituents.In: Proceeding of Fourth International Symposium on the Utilization of High Strength/High Performance Concrete, Paris, 1996
    [50] 项翥行,建筑工程常用材料试验手册,中国建筑工业出版社,1998,pp.242-252
    [51] 吴中伟、廉慧珍,高性能混凝土,中国铁道出版社,pp.131
    [52] De Larrard F. A Survey of Recent Researches performed in the French "LCPC"(Laboratorial Central des ponts of Chaussees) Network on High Performance Concrete. Proceedings of High Strength Concrete, Lillehammer, Norway, 1993:pp20~24
    [53] Regourd M M. Microstmcture of High Performance Concrete. High Performance Concrete, E & FN SPON, 1992
    [54] Bache H H. Densified Cement/Uitrafine Particle Based Materials. Second International Conf. on Superplasticizers in Concrete, Ottawa,1981
    [55] Soutsos M N, Domone P L J. Design of High Strength Concrete Mixes with Normal Weight Aggregates. Proc. of the 3rd International Symposium on Utilization of High Strength Concrete, Lillehammer, Norway
    [56] Domone P L J, Soutsos, M N. An Approach to the Proportioning of High Strength Concrete Mixes. Concrete International, 1994
    [57] Carbonnari B T et al. A Synthetic Approach for the Experimental Optimization of High Strength
    
    Concrete. 4th International Symposium on Utilization of HSC/HPC, Paris, 1996
    [58] 王德怀,高性能混凝土配合比设计与质量控制的计算机化,学位论文,北京:清华大学,1996
    [59] 阿部道彦,高强技术教本,1996
    [60] P.K. Mehta, P. C. Aitcin, Principle Underlying Production of High Performance Concrete.Cement, Concrete and Aggregate,1990(12)2
    [61] 孙振平,蒋正武,王玉吉等,混凝土外加剂与水泥适应性,海峡两岸高性能混凝土研讨会,上海,2001.3
    [62] Aitcin, Jolicoeur,C.,Simard, M.-A., p.-c.& Baalbaki, M., Cement-superplasticizer compatibility in high-performance concrete. In proceedings from the high performance concrete, Toronto,1992
    [63] B. Blank, D.R.Rossington and L.A.Wenland,Journal of American Ceramic Society, Vol.146(3), pp.395-399(1968)
    [64] 张冠伦,张云理,混凝土外加剂原理及其应用技术,上海科学技术文献出版社,1985,pp.45-48
    [65] 王宏伟、王善拔,水泥与减水剂相容性问题雏议,混凝土与水泥制品,No.4,2001,4,pp.9-11
    [66] 孙振平、蒋正武、王玉吉、张冠伦,水泥碱含量对萘系高效减水剂作用效果的影响,HPC2001,云南昆明:第三届全国高性能混凝土学术研讨会论文集,2001.9,pp.238-244
    [67] “混凝土新型胶凝材料的研究”专题项目——混凝土性能研究及评价报告,中国建材院,(内部资料)2000年5月,pp.11-12
    [68] Adam Neville. Consideration of durability of concrete structure: Past, present and future. Materials and Structure March 2001. pp.114-118
    [69] P.K. Mehta, Concrete Technology at the Crossroads——Problems and Opportunities. Concrete Technology, Past, Present and Future. ACI SP 144-1 (1994)
    [70] P.K. Mehta and R. W. Burrows, Building Durable Structures in The 21st Century. Concrete International. March, 2001
    [71] P.K. Mehta. Durability Critical Issues for the Future. Concrete International, July 1997
    [72] T.U. Morammed et al. Issues in Designing Durable Structure. Concrete International. July 2001
    [73] Mingdess S,J.F.Yong.混凝土,方秋清等译,北京:中国建筑工业出版社,1989
    [74] T.C. Powers, in 4th ISCC, Vol.2, 1962, pp.577
    [75] 吴中伟、廉慧珍,高性能混凝土,中国铁道出版社,pp.24
    [76] 储传英,三峡工程混凝土原材料研究,中国水利水电出版社,pp.49

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