全级配再生粘土砖集料在混凝土和砂浆中的应用研究
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摘要
随着城市化进程的加快,建筑垃圾也与日俱增。过去50年,我国至少生产了200×10~9m~3粘土砖制品,陆续将转化为建筑固体废弃物。巨量废弃物的处理除了费用惊人外,还会引发很严重的环境问题。另外,混凝土的巨额需求也需要大量的砂石集料,而随着天然砂石的不断开采,天然集料资源也日益枯竭。
基于环境保护和可持续发展思想的再生混凝土技术将可以很好的解决这一难题。城市建筑垃圾资源化处理是20世纪90年代以来发达国家环境保护和可持续发展的战略目标之一。利用拆迁后的废粘土砖砌体加工再生集料用于生产水泥混凝土制品和其他建筑材料是资源化利用的主要途径,在建筑垃圾排放费用很高且天然集料资源较紧缺的国家(地区),利用附加值会更高。
本文概述了再生混凝土和再生砂浆对环境的影响以及其在国内外的研究状况。通过对目前国内获取再生集料的方法进行分析,并借鉴国外机械破碎方式,采用鄂式破碎机来制取再生粘土砖集料。进行了砖混结构建筑物垃圾估算方法,和再生集料的生产方式和生产模式进了探讨。
对再生粘土砖集料性质的测定,重点分析了再生粗集料的粒形元素。改变全级配再生粘土砖集料混凝土中的附加水量、粉煤灰取代率、调整粗集料级配,研究再生混凝土的新拌性能及其抗压强度和弹性模量。通过对粘土砖破碎筛成4.75mm以下的砖粉配制成砂浆的可行性进行了初步的研究。为进一步研究全级配粘土砖集料的应用提供了依据。粘土砖集料砂浆
With the speeding up of the process of urbanization,wastes of construction have been growing day by day.In the past fifty years. Over the past 50 years, at least 200 billion cubic meters of production of clay brick product which will mostly be converted to solid waste.Besids the charge for the jillion wastes disposal is very high,it also causes a lot of environmental problems.In addition,the large demand of concrete requests the exploritation of natural resoures--sand and stone,and so the natural resource has been on the exhausted edge for unceasing exploration.
Then based on the thought of environmental protection and sustainable development,the technology of recycled concrete can solve this problem efficiently. Since the 1990s, urban construction waste disposal and resource is one of the strategic objectives of environmental protection and sustainable development in developed contry. Broken the demolition clay brick masonry into oarse and fine crushed bricks as regeneration aggregate in the production of cement concrete products and other building materials is the main approach.In the country (region) where the nature aggregate resource is short, the cost of utilization waste discharge is high in construction ,use value will be higher.
This paper summarizes that recycled concrete and receycled mortar brings the influence to the environment.it’s domestic and international research status.This paper mainly studies feature and the basic application of coarse and fine crushed bricks as aggregate.Through analysis of the method that is currently used on how to gain recycled concrete aggregate and then after drawing lessons on processing manner of waste concrete from abroad,jaw crusher is used to produce recycled aggregate. This paper also discussed on the mehods of quality of demolition waste and the production style and model of recycled aggregate.
This paper analyzed the properties of coarse and fine crushed bricks as aggregate and emphatically analyzed grain shape elements of recyecled aggregate.Through changing the additional water、different substitutive percent of fly ash and adjustment of recycled coarse aggregate gradation in concrete,the workability of fresh concret、the compressive strength and elastic modulus have been researched. The preliminary feasibility which crushed brick powder can be used to replace all of natural sand in making mortar is researched. Through screening for breaking a 4.75 mm fine aggregate made into mortar ,this paper studies the feasibility of the preliminary.
This paper offers some references for further research on use of fully-graded coarse and fine crushed bricks as recycled aggregate.
基于环境保护和可持续发展思想的再生混凝土技术将可以很好的解决这一难题。城市建筑垃圾资源化处理是20世纪90年代以来发达国家环境保护和可持续发展的战略目标之一。利用拆迁后的废粘土砖砌体加工再生集料用于生产水泥混凝土制品和其他建筑材料是资源化利用的主要途径,在建筑垃圾排放费用很高且天然集料资源较紧缺的国家(地区),利用附加值会更高。
本文概述了再生混凝土和再生砂浆对环境的影响以及其在国内外的研究状况。通过对目前国内获取再生集料的方法进行分析,并借鉴国外机械破碎方式,采用鄂式破碎机来制取再生粘土砖集料。进行了砖混结构建筑物垃圾估算方法,和再生集料的生产方式和生产模式进了探讨。
对再生粘土砖集料性质的测定,重点分析了再生粗集料的粒形元素。改变全级配再生粘土砖集料混凝土中的附加水量、粉煤灰取代率、调整粗集料级配,研究再生混凝土的新拌性能及其抗压强度和弹性模量。通过对粘土砖破碎筛成4.75mm以下的砖粉配制成砂浆的可行性进行了初步的研究。为进一步研究全级配粘土砖集料的应用提供了依据。粘土砖集料砂浆
With the speeding up of the process of urbanization,wastes of construction have been growing day by day.In the past fifty years. Over the past 50 years, at least 200 billion cubic meters of production of clay brick product which will mostly be converted to solid waste.Besids the charge for the jillion wastes disposal is very high,it also causes a lot of environmental problems.In addition,the large demand of concrete requests the exploritation of natural resoures--sand and stone,and so the natural resource has been on the exhausted edge for unceasing exploration.
Then based on the thought of environmental protection and sustainable development,the technology of recycled concrete can solve this problem efficiently. Since the 1990s, urban construction waste disposal and resource is one of the strategic objectives of environmental protection and sustainable development in developed contry. Broken the demolition clay brick masonry into oarse and fine crushed bricks as regeneration aggregate in the production of cement concrete products and other building materials is the main approach.In the country (region) where the nature aggregate resource is short, the cost of utilization waste discharge is high in construction ,use value will be higher.
This paper summarizes that recycled concrete and receycled mortar brings the influence to the environment.it’s domestic and international research status.This paper mainly studies feature and the basic application of coarse and fine crushed bricks as aggregate.Through analysis of the method that is currently used on how to gain recycled concrete aggregate and then after drawing lessons on processing manner of waste concrete from abroad,jaw crusher is used to produce recycled aggregate. This paper also discussed on the mehods of quality of demolition waste and the production style and model of recycled aggregate.
This paper analyzed the properties of coarse and fine crushed bricks as aggregate and emphatically analyzed grain shape elements of recyecled aggregate.Through changing the additional water、different substitutive percent of fly ash and adjustment of recycled coarse aggregate gradation in concrete,the workability of fresh concret、the compressive strength and elastic modulus have been researched. The preliminary feasibility which crushed brick powder can be used to replace all of natural sand in making mortar is researched. Through screening for breaking a 4.75 mm fine aggregate made into mortar ,this paper studies the feasibility of the preliminary.
This paper offers some references for further research on use of fully-graded coarse and fine crushed bricks as recycled aggregate.
引文
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[29]张利娟,徐亦冬.再生混凝土的抗压强度与弹性模量研究.低温建筑技术, 2008, 1: 6~8
[30]吴建华,马石城,唐昭青等.聚丙烯纤维和硅粉对再生混凝土的强化试验研究.混凝土, 2006, 11: 36~38
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[32] JoseM.V.Gomezoberon.Porosiy of recycled concrete with substitution of recycled concrete aggregate, Cementnad Comcrete Research, 2002, (32): 1301~1311
[33] NobuakiOtsuki, M.ASCECF. Influence of recycled aggregate on interfaciel transition zone, strength, chloride penetrationand carbonation of concrete. JOURNAL OF MATERIAL SINCIVIL ENGINEERING, 2003, 15(5): 443~451
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[35]中和,潘智生,朱文琪等.再生骨料混凝土的微观结构特征.武汉理工大学学报, 2003, 25(12): 99~102
[36]陈云钢,孙振平,肖建庄.再生混凝土界面结构特点及其改善措施.混凝土,2004, (2): 10~13
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[38]黄文锋.再生骨料及掺合料对再生混凝土力学性能影响试验研究[D].哈尔滨工业大学,2007
[39] Fmklin Associates, Characterization of building related construction and demolition debris in the United States[R], EPA530-R-98-010, 1998
[40] Seo S Hwang Y. An estimation of construction and demolition debris in Seoul, Korea: waste amount,Type and Estimating Modlel[J], Journal of the Air and Waste Management Association, 1999, 49(8): 980~985
[41] Fatta D Papadopouos A, Avramilos E, et al. Generatioong ang management of construction and demolition waste in Greece–an existing challenge[J], Resources, Conservation ang Recycling , 2003, 40(1): 81~91
[42] Oyeshola Femi Kofoworola, Shabbir H. Gheewala,Estimation of construction waste generation and management in Thailand, Waste Management, 2009, 29: 731~738
[43]陈军何,品晶,邵立明,吕凡等,拆毁建筑垃圾产生量的估算方法探讨术,环境卫生工程, 2007, 15(6): 1~4
[44]建筑施工手册编写组,北京:建筑施工手册[M],中国建筑工业出版社, 1988
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[2]俞淑芳.建筑垃圾的综合利用.国外建材科技,2005 , 26(2): 37~49
[3]孙跃东,肖建庄.再生混凝土骨料.混凝土,2004, (6): 33~36
[4]田洪臣,段绪胜,王福忠等.建筑垃圾的综合应用.山东农业大学学报(自然科学版), 2006, 37(1): 109~112
[5]冯乃谦.混凝土大全[M].北京:科学出版社,2001
[6]石峰,宁利中,刘晓峰等.建筑固体废物资源化综合利用,水资源与水工程学报, 2007,18(5):39~46
[7]赵俊等,建筑垃圾的减量化和资源化,粉煤灰,2001,2:3~6
[8]罗荣,冯光乐,凌天清,再生水泥混凝土研究综述,中外公路,2003,4: 83~86
[9]杜婷,李惠强等,再生骨料混凝土一种新型的绿色建材,福建建材, 1999, 2:56~57
[10]姚武,绿色混凝土,北京:化学工业出版社, 2006
[11]肖建庄,李佳彬,兰阳,再生混凝土技术研究最新进展与评述混凝土,2003,10:17~19
[12]石建光,许岳周,骨料级配对再生混凝土强度和工作性能影响的试验研究和计算分析,混凝土,2008,1:82~86
[13] Topcu I. B., N. F. Gunean,Using waste concrete as aggregate, Cement and Concrete Research,Vol.25,No.7,1995
[14] Topcu I. B.,Physical and mechanical properties of concrete produced with waste concrete,Cement and Concrete Resarch,Vol.27,No.12,1997, pp1817~1823
[15]屈志中,钢筋混凝土破坏及其利用技术的新动向[J],建筑技术,2001,32(2):102~104
[16]柯国军等,再生混凝土的实用性研究[J],混凝土,2002 ,(4):47~49
[17]严捍东,陈秀峰,粘土砖再生骨料性质及其对水泥基材料强度的影响,环境工程,2008,26(4)37~42
[18]胡金鸿,马嵘,水灰比对碎砖再生混凝土性能的影响研究,嘉兴学院报,2003,15(1)94~96
[19]王新波,杨永生,颜伟,再生骨料及再生混凝土基本性能研究,山西建筑2008.(34)9
[20]白文辉,张金龙,自由水灰比的再生混凝土配合比设计研究
[21]张亚梅,秦鸿根,孙伟.再生混凝土配合比设计初探[J],混凝土与水泥制品, 2002, 1: 7~9
[22]史巍,侯景鹏.再生混凝土技术及其配合比设计方法[J].建筑技开发, 2001, 28 (8): 18~20
[23] Saroj MANDAL, Arundeb GUPTA. Strength and durability of recycled aggregate concrete. LABSE SYMPOSIUM MELBOURNE, 2002, Australia
[24]邢振贤,周曰农.再生混凝土的基本性能研究[J].华北水利水电学院学报, 1998, 19(2): 30~32
[25]邢振贤,刘利军,赵玉青等,碎砖骨料再生混凝土配合比研究.再生资源研究,2006, 2: 39~40
[26]石建光,许岳周.骨料级配对再生混凝土强度和工作性能影响的试验研究和计算分析.混凝土, 2008, 1: 82~86
[27]李旭平.再生混凝土基本力学性能研究(I)---单轴受压性能.建筑材料学报, 2007, (10)5: 598~603
[28]李旭平.再生混凝土基本力学性能研究(Ⅱ)---单轴受压性能.建筑材料学报, 2007, (10)5: 699~704
[29]张利娟,徐亦冬.再生混凝土的抗压强度与弹性模量研究.低温建筑技术, 2008, 1: 6~8
[30]吴建华,马石城,唐昭青等.聚丙烯纤维和硅粉对再生混凝土的强化试验研究.混凝土, 2006, 11: 36~38
[31]程海丽.粉煤灰与废粘土砖再生混凝土试验研究.混凝土与水泥制品, 2005, 5: 48~50
[32] JoseM.V.Gomezoberon.Porosiy of recycled concrete with substitution of recycled concrete aggregate, Cementnad Comcrete Research, 2002, (32): 1301~1311
[33] NobuakiOtsuki, M.ASCECF. Influence of recycled aggregate on interfaciel transition zone, strength, chloride penetrationand carbonation of concrete. JOURNAL OF MATERIAL SINCIVIL ENGINEERING, 2003, 15(5): 443~451
[34] EdwardJ.Carboczi, Dale.Bentz. Analytical Formulas for Interfacial Transition Zone Properties. Advnaced CementBasedMaterials, 1997, (6): 77~108
[35]中和,潘智生,朱文琪等.再生骨料混凝土的微观结构特征.武汉理工大学学报, 2003, 25(12): 99~102
[36]陈云钢,孙振平,肖建庄.再生混凝土界面结构特点及其改善措施.混凝土,2004, (2): 10~13
[37]李云霞,李秋义.赵铁军再生骨料与再生混凝土的研究进展.青岛理工大学学报, 2005, 26(5): 16~19
[38]黄文锋.再生骨料及掺合料对再生混凝土力学性能影响试验研究[D].哈尔滨工业大学,2007
[39] Fmklin Associates, Characterization of building related construction and demolition debris in the United States[R], EPA530-R-98-010, 1998
[40] Seo S Hwang Y. An estimation of construction and demolition debris in Seoul, Korea: waste amount,Type and Estimating Modlel[J], Journal of the Air and Waste Management Association, 1999, 49(8): 980~985
[41] Fatta D Papadopouos A, Avramilos E, et al. Generatioong ang management of construction and demolition waste in Greece–an existing challenge[J], Resources, Conservation ang Recycling , 2003, 40(1): 81~91
[42] Oyeshola Femi Kofoworola, Shabbir H. Gheewala,Estimation of construction waste generation and management in Thailand, Waste Management, 2009, 29: 731~738
[43]陈军何,品晶,邵立明,吕凡等,拆毁建筑垃圾产生量的估算方法探讨术,环境卫生工程, 2007, 15(6): 1~4
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