高强聚脂纤维混凝土的强度特性研究
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摘要
土木工程的迅速发展对混凝土材料提出了高工作性、高耐久性、高体积稳定性、高强度的高性能化要求。为了适应这一快速发展对混凝土性能的要求,人们通过改进混凝土的组成成分和配制技术,提出了纤维混凝土这一新型的复合建筑材料,但随着不断施工的实践,人们发现常规纤维的使用在改善混凝土的力学性能的同时,又存在着锈蚀和价格高的两面性。于是,解决纤维锈蚀的问题或寻找替代的工作又在不断进行着。
高强聚脂纤维是日本近年开发的一种新型纤维,由于生产的原材料主要为废弃的饮料瓶等生活垃圾,属于一种新型的环保型建筑材料。论文在大量试验的基础上,通过在喷射混凝土、公路混凝土、常态混凝土中重复进行力学性能的试验,来重点考察不同掺量的高强聚脂纤维的混凝土与空白混凝土相比在抗弯强度、抗拉强度(劈裂)、弯曲韧度、抗压强度等项力学指标的提高幅度,并对混凝土的极限拉伸值、抗冲击性、抗冲耐磨及耐久性等项指标也进行一定数量的考察试验。主要结论为:高强聚脂纤维对混凝土的力学性能的提高和混凝土韧性的改善均有一定积极的作用,对混凝土的耐久性稍有影响或与空白混凝土相当。与钢纤维相比,在抗弯强度和韧性指标等方面存在一定的差距。
对于水电工程而言,混凝土的韧性指标等方面技术要求较高,且大多数工程环境无酸、碱侵蚀,故高强聚脂纤维用于水电工程还有待进一步的研究。
The fast development needs the concrete have higher performance, such as higher working performance, higher durability, higher voluminal stability and higher tensile. To meet the need, the working personnel improve the constitut and compound technology of conrete, and present the fiber conrete, the new compound construction material. But with the continual practice of construction, though the conventional fiber can improve the mechanic performance, it will become rusty and have a high price.
High tensile polyester fiber, the new fiber developed in Japan in the past few years, is one new envirmenal construction material due to the raw material of it mostly is living rubbish for example drink bottle. Based on a great deal of mechanic tests on ejecting concrete, road concrete and normal concrete, the advance of every mechanics index, such as bending strength, tensile strength, bending temper, compressive strength and otherwise mechanics indexes, of concrete of different high tensile polyester fiber content compared with it of plain concrete are studied in this paper. And limit tensile value, resistance to impact, erosion-resisting and abrasion resistance, and durability etc. are studiecd also. The main conclusion of this paper is the use of high tensile polyester fiber ha ve positive effect on the improvement of mechanic performance and toughness of concrete, and the effect on durability of concrete is little. And compared with the steel fiber, there are some differences on bending strength and toughness index.
For the water and electricity engineering, the aspect about toughness index of concrete is paid attention, and most of engineerings aren’t eroded by alkali and acid, farther research is needed to be done in using high tensile polyester fiber for water and electricity engineering.
高强聚脂纤维是日本近年开发的一种新型纤维,由于生产的原材料主要为废弃的饮料瓶等生活垃圾,属于一种新型的环保型建筑材料。论文在大量试验的基础上,通过在喷射混凝土、公路混凝土、常态混凝土中重复进行力学性能的试验,来重点考察不同掺量的高强聚脂纤维的混凝土与空白混凝土相比在抗弯强度、抗拉强度(劈裂)、弯曲韧度、抗压强度等项力学指标的提高幅度,并对混凝土的极限拉伸值、抗冲击性、抗冲耐磨及耐久性等项指标也进行一定数量的考察试验。主要结论为:高强聚脂纤维对混凝土的力学性能的提高和混凝土韧性的改善均有一定积极的作用,对混凝土的耐久性稍有影响或与空白混凝土相当。与钢纤维相比,在抗弯强度和韧性指标等方面存在一定的差距。
对于水电工程而言,混凝土的韧性指标等方面技术要求较高,且大多数工程环境无酸、碱侵蚀,故高强聚脂纤维用于水电工程还有待进一步的研究。
The fast development needs the concrete have higher performance, such as higher working performance, higher durability, higher voluminal stability and higher tensile. To meet the need, the working personnel improve the constitut and compound technology of conrete, and present the fiber conrete, the new compound construction material. But with the continual practice of construction, though the conventional fiber can improve the mechanic performance, it will become rusty and have a high price.
High tensile polyester fiber, the new fiber developed in Japan in the past few years, is one new envirmenal construction material due to the raw material of it mostly is living rubbish for example drink bottle. Based on a great deal of mechanic tests on ejecting concrete, road concrete and normal concrete, the advance of every mechanics index, such as bending strength, tensile strength, bending temper, compressive strength and otherwise mechanics indexes, of concrete of different high tensile polyester fiber content compared with it of plain concrete are studied in this paper. And limit tensile value, resistance to impact, erosion-resisting and abrasion resistance, and durability etc. are studiecd also. The main conclusion of this paper is the use of high tensile polyester fiber ha ve positive effect on the improvement of mechanic performance and toughness of concrete, and the effect on durability of concrete is little. And compared with the steel fiber, there are some differences on bending strength and toughness index.
For the water and electricity engineering, the aspect about toughness index of concrete is paid attention, and most of engineerings aren’t eroded by alkali and acid, farther research is needed to be done in using high tensile polyester fiber for water and electricity engineering.
引文
[1]徐至钧.纤维混凝土技术及应用[M].北京:中国建筑工业出版社, 2003.
[2]黄承逵.纤维混凝土结构[M].北京:机械工业出版社, 2004.
[3]华渊、陈贺新.聚丙乙烯纤维自密实混凝土的研究及应用[J].河南科学,2002(6)
[4]孙家瑛、李士恩.聚丙乙烯纤维增强钢丝网混凝土薄板力学性能试验研究[J].混凝土与水泥制品,2002(4)
[5]朱江、宋芳.纤维改性水泥基材料的热性能研究[J].河南科学,2002(6)
[6]谷章昭、宋敦清.低掺量聚丙稀纤维在混凝土(砂浆)中的阻裂作用[J].建材产品与应用,2000(5)
[7]葛其荣、郑子祥.宁波白溪水库二期面板聚丙稀纤维混凝土试验研究[J].建筑结构,2002(1)
[8]蔡文胜、张双萍.微膨胀聚丙稀纤维混凝土的试验及工程实践[J].建筑技术,2002(1)
[9]樊钧、方俊波.纤维混凝土在地铁车站结构自防水施工中的应用[J].地铁工程学报,2001(4)
[10]樊钧、马锋玲. 200m级面板堆石坝面板材料改性研究[J].水利学报,2000(8)
[11]李俊毅、陈发科.聚合物纤维混凝土在渠道防渗中的应用[J].节水灌溉,2001(5)
[12]马一平、谈慕华.聚丙烯纤维水泥基复合材料物理力学性能研究(1)[J].建筑材料学报,2000(1)
[13]苏建波、马一平.聚丙烯纤维水泥复合材料物理力学性能研究(2)[J].建筑材料学报,2000(3)
[14]姚武、李杰.聚丙烯纤维对混凝土抗拉强度的影响[J].混凝土,2001(10)
[15]戴建国、黄承逵、赵国藩.低弹性模量纤维混凝土的剩余弯曲强度.全国第七届纤维水泥与纤维混凝土学术会议论文集.北京:中国铁道出版社,1998
[16]余斌.纤维改性混凝土的试验研究与应用[J].混凝土与水泥制品,(总115)
[17]卢安琪、祝桦然.聚丙烯纤维混凝土耐气候老化性能试验研究[J].混凝土,2002(1)
[18]覃维祖.混凝土及其外加剂的进展与展望[J].石油工程建设,2002(4)
[19]陆守稳、王新文、戴东林.杜拉纤维在转换层结构C50高强混凝土中的应用[J].建筑经济,2001(5)
[20]范永法、李律晓.杜拉纤维混凝土在深圳市市民中心工程上的应用[J].生产与应用技术,2001(3)
[21]徐至钧.聚丙烯纤维在混凝土中应用[J].建筑技术,2002(1)
[22]徐至钧.聚丙烯纤维在墙面水泥砂浆抹灰中的应用[J].建筑技术,2002(9)
[23]陈斌.杜拉纤维应用于预应力转换梁的施工技术[J].广东土木与建筑,2002(1)
[24]詹国良、陈贵华.纤维高性能混凝土的应用[J].广东土木与建筑,2001(3)
[25]曾诚、王春阳.低掺量聚丙烯纤维在混凝土中的效应分析[J].混凝土与水泥制品,(总115)
[26]徐至钧.聚丙烯纤维在土建工程中的应用[J].石油工程建设,2002(4)
[27]袁勇、邵晓芸.合成纤维增强混凝土的发展前景[J].混凝土,2000(12)
[28]沈荣熹.低掺率合成纤维在混凝土中的作用机制[J].水泥基复合材料科学与技术,1999
[29]李其廉、赵士永.喷射合成纤维混凝土在修复加固工程中的应用[J].混凝土与水泥制品,(总115)
[30]李学章.抗裂防水新材料杜拉纤维混凝土[J].住宅科技,2001(12)
[31]朱江.聚丙烯纤维混凝土的防水性能及其应用[J].防水材料与施工,2000(3)
[32]马华堂、管新建.聚丙烯纤维混凝土的力学特性及路面工程应用[J].河南科学,第21卷第6期
[33]吴富平、张恒.改性聚丙烯纤维混凝土在高寒地区工程中的应用[J].东北水利水电,2000(8)
[34]牛清山、汪静.连续纤维增强塑料补强加固混凝土结构物的现状及发展趋势[J].建筑技术,1999(6)
[35]卢安琪、李克亮.聚丙烯纤维混凝土抗冲耐磨试验研究[J].水利水电技术,2002(4)
[36]王成启、吴科如.不同弹性模量的纤维对高强混凝土力学性能的影响[J].混凝土与水泥制品,2002(3)
[37] Sydney Furlan Jr., S.P. Shah. Fiber-reinforced cement composites. New York: Mc Graw-Hill Inc, 1992
[38] Wilrick engineering and inspect. Crack propagation study using durafiberpolypropylene fiber in mixes. Dec.15, 1989
[39] G.. D. Manolis, M.L. Hill, Tian Rongxing. Crack-arresting effect of polypropylene monofilament fiber at small dosage in concrete. In: Shen Li, Guihui Wei eds. Proceeding of the International conference on fiber reinforced concrete. Guangzhou: Guandong Science and Technology Press, 1977, 27-33
[40] R.C. Zellers, V. Ramakrishna. Evaluation and comparison of the physical properties of fibrillated polypropylene fiber-reinforced concretes[J]. Transportation research record 1458, 1993, 57-66
[41] A.M. Alhozaimy, P. Soroushian, F. Mirzak. Mechanical properties of polypropylene fiber reinforced concrete and the effects of pozzolanic materials[J]. Cement & concrete composites, 1996(18), 85-92
[42] P.L. Nunna, V. Ramakrishnan, J.D. Spearkman. Performance characteristics of polypropylene (Monofilament) Fiber reinforced concretes, 1993
[43] V. Ramakrishnan, S. Gollapudi, R. Zellers. Performance characteristics and fatigue strength of polypropylene fiber reinforced concrete, In: Fiber reinforced concrete properties and application, SP-105, American concrete institute, Detroit, 1987, 159-177
[44] Goldfein S. Fibrous reinforcement for Porland cement. Modern plastics, 1965, 42(8), 156-160
[2]黄承逵.纤维混凝土结构[M].北京:机械工业出版社, 2004.
[3]华渊、陈贺新.聚丙乙烯纤维自密实混凝土的研究及应用[J].河南科学,2002(6)
[4]孙家瑛、李士恩.聚丙乙烯纤维增强钢丝网混凝土薄板力学性能试验研究[J].混凝土与水泥制品,2002(4)
[5]朱江、宋芳.纤维改性水泥基材料的热性能研究[J].河南科学,2002(6)
[6]谷章昭、宋敦清.低掺量聚丙稀纤维在混凝土(砂浆)中的阻裂作用[J].建材产品与应用,2000(5)
[7]葛其荣、郑子祥.宁波白溪水库二期面板聚丙稀纤维混凝土试验研究[J].建筑结构,2002(1)
[8]蔡文胜、张双萍.微膨胀聚丙稀纤维混凝土的试验及工程实践[J].建筑技术,2002(1)
[9]樊钧、方俊波.纤维混凝土在地铁车站结构自防水施工中的应用[J].地铁工程学报,2001(4)
[10]樊钧、马锋玲. 200m级面板堆石坝面板材料改性研究[J].水利学报,2000(8)
[11]李俊毅、陈发科.聚合物纤维混凝土在渠道防渗中的应用[J].节水灌溉,2001(5)
[12]马一平、谈慕华.聚丙烯纤维水泥基复合材料物理力学性能研究(1)[J].建筑材料学报,2000(1)
[13]苏建波、马一平.聚丙烯纤维水泥复合材料物理力学性能研究(2)[J].建筑材料学报,2000(3)
[14]姚武、李杰.聚丙烯纤维对混凝土抗拉强度的影响[J].混凝土,2001(10)
[15]戴建国、黄承逵、赵国藩.低弹性模量纤维混凝土的剩余弯曲强度.全国第七届纤维水泥与纤维混凝土学术会议论文集.北京:中国铁道出版社,1998
[16]余斌.纤维改性混凝土的试验研究与应用[J].混凝土与水泥制品,(总115)
[17]卢安琪、祝桦然.聚丙烯纤维混凝土耐气候老化性能试验研究[J].混凝土,2002(1)
[18]覃维祖.混凝土及其外加剂的进展与展望[J].石油工程建设,2002(4)
[19]陆守稳、王新文、戴东林.杜拉纤维在转换层结构C50高强混凝土中的应用[J].建筑经济,2001(5)
[20]范永法、李律晓.杜拉纤维混凝土在深圳市市民中心工程上的应用[J].生产与应用技术,2001(3)
[21]徐至钧.聚丙烯纤维在混凝土中应用[J].建筑技术,2002(1)
[22]徐至钧.聚丙烯纤维在墙面水泥砂浆抹灰中的应用[J].建筑技术,2002(9)
[23]陈斌.杜拉纤维应用于预应力转换梁的施工技术[J].广东土木与建筑,2002(1)
[24]詹国良、陈贵华.纤维高性能混凝土的应用[J].广东土木与建筑,2001(3)
[25]曾诚、王春阳.低掺量聚丙烯纤维在混凝土中的效应分析[J].混凝土与水泥制品,(总115)
[26]徐至钧.聚丙烯纤维在土建工程中的应用[J].石油工程建设,2002(4)
[27]袁勇、邵晓芸.合成纤维增强混凝土的发展前景[J].混凝土,2000(12)
[28]沈荣熹.低掺率合成纤维在混凝土中的作用机制[J].水泥基复合材料科学与技术,1999
[29]李其廉、赵士永.喷射合成纤维混凝土在修复加固工程中的应用[J].混凝土与水泥制品,(总115)
[30]李学章.抗裂防水新材料杜拉纤维混凝土[J].住宅科技,2001(12)
[31]朱江.聚丙烯纤维混凝土的防水性能及其应用[J].防水材料与施工,2000(3)
[32]马华堂、管新建.聚丙烯纤维混凝土的力学特性及路面工程应用[J].河南科学,第21卷第6期
[33]吴富平、张恒.改性聚丙烯纤维混凝土在高寒地区工程中的应用[J].东北水利水电,2000(8)
[34]牛清山、汪静.连续纤维增强塑料补强加固混凝土结构物的现状及发展趋势[J].建筑技术,1999(6)
[35]卢安琪、李克亮.聚丙烯纤维混凝土抗冲耐磨试验研究[J].水利水电技术,2002(4)
[36]王成启、吴科如.不同弹性模量的纤维对高强混凝土力学性能的影响[J].混凝土与水泥制品,2002(3)
[37] Sydney Furlan Jr., S.P. Shah. Fiber-reinforced cement composites. New York: Mc Graw-Hill Inc, 1992
[38] Wilrick engineering and inspect. Crack propagation study using durafiberpolypropylene fiber in mixes. Dec.15, 1989
[39] G.. D. Manolis, M.L. Hill, Tian Rongxing. Crack-arresting effect of polypropylene monofilament fiber at small dosage in concrete. In: Shen Li, Guihui Wei eds. Proceeding of the International conference on fiber reinforced concrete. Guangzhou: Guandong Science and Technology Press, 1977, 27-33
[40] R.C. Zellers, V. Ramakrishna. Evaluation and comparison of the physical properties of fibrillated polypropylene fiber-reinforced concretes[J]. Transportation research record 1458, 1993, 57-66
[41] A.M. Alhozaimy, P. Soroushian, F. Mirzak. Mechanical properties of polypropylene fiber reinforced concrete and the effects of pozzolanic materials[J]. Cement & concrete composites, 1996(18), 85-92
[42] P.L. Nunna, V. Ramakrishnan, J.D. Spearkman. Performance characteristics of polypropylene (Monofilament) Fiber reinforced concretes, 1993
[43] V. Ramakrishnan, S. Gollapudi, R. Zellers. Performance characteristics and fatigue strength of polypropylene fiber reinforced concrete, In: Fiber reinforced concrete properties and application, SP-105, American concrete institute, Detroit, 1987, 159-177
[44] Goldfein S. Fibrous reinforcement for Porland cement. Modern plastics, 1965, 42(8), 156-160