典型建筑固体废弃物再生骨料对环保砖性能的影响
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摘要
随着我国城市化和工业化进程的快速推进,城市建设产生大量的建筑废弃物,燃煤电厂产生大量炉底渣,建筑固废的处置在城市可持续发展过程中备受关注。以建筑垃圾再生骨料、炉底渣和石粉等区域特色的骨料制备环保砖,系统考察了骨料对环保砖力学性能的影响。实验结果表明,再生骨料的种类对环保砖抗压强度的影响显著。再生骨料中混凝土的增加,环保砖抗压强度逐渐增加;而再生骨料中粘土砖含量的增加,环保砖抗压强度明显降低。环保砖抗压强度随炉底渣的含量增加而降低,石粉对环保砖抗压强度有提升作用。
In the process of China urbanization and industrialization,construction wastes are generated at an increasing rate and a huge amount of furnace bottom ash are generated in coal-fired power plants.Much attention is paid to the disposal these solid wastes in the process of sustainable development.In this study,the effect of aggregates,including recycled construction waste aggregate,furnace bottom ash,and stone powder,on the mechanical properties of environment-friendly block(en-block) was investigated systematically.The results indicated that the types of recycled aggregates had significant effect on the compressive strength of en-block.The compressive strength increased with the increasing content of the recycled concrete,and deceased evidently with the increasing content of brick.The compressive strength of en-block decreased with the increasing content of furnace bottom ash,and can be enhanced by stone powder.
In the process of China urbanization and industrialization,construction wastes are generated at an increasing rate and a huge amount of furnace bottom ash are generated in coal-fired power plants.Much attention is paid to the disposal these solid wastes in the process of sustainable development.In this study,the effect of aggregates,including recycled construction waste aggregate,furnace bottom ash,and stone powder,on the mechanical properties of environment-friendly block(en-block) was investigated systematically.The results indicated that the types of recycled aggregates had significant effect on the compressive strength of en-block.The compressive strength increased with the increasing content of the recycled concrete,and deceased evidently with the increasing content of brick.The compressive strength of en-block decreased with the increasing content of furnace bottom ash,and can be enhanced by stone powder.
引文
[1]陈家珑,周文娟,路宏波.地震灾区建筑垃圾处理技术研究.建筑技术,2009,(9):822-825Chen Jialong,Zhou Wenjuan,Lu Hongbo.Research onbuilding waste treatment technique in earthquake disasterarea.Architecture Technology,2009,(9):822-825(inChinese)
[2]张孟雄,张学良,王卫秋,等.建筑垃圾砖的开发及应用.砖瓦世界,2006,(8):19-21Zhang Mengxiong,Zhang Xueliang,Wang Weiqiu,et al.The development of brick from construction waste and appli-cation.Brick and Tile World,2006,(8):19-21(in Chinese)
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[5]Poon C.S.,Chan D.Effects of contaminants on the prop-erties of concrete paving blocks prepared with recycled con-crete aggregates.Construction and Building Materials,2007,21(1):164-175
[6]Poon C.S.,Lam C.S.The effect of aggregate-to-cementratio and types of aggregates on the properties of pre-castconcrete blocks.Cement&Concrete Composites,2008,30(4):283-289
[7]Poon C.S.,Kou S.C.,Wana H.W.,et al.Propertiesof concrete blocks prepared with low grade recycled aggre-gates.Waste Management,2009,29(8):2369-2377
[8]Soutsos M.N.,Tang K.,Millard S.G.Use of recycleddemolition aggregate in precast products,phaseⅡ:Con-crete paving blocks.Construction and Building Materials,2011,25(7):3131-3143
[9]Wattanasiriwech D.,Saiton A.,Wattanasiriwech S.Pav-ing blocks from ceramic tile production waste.Journal ofCleaner Production,2009,17(18):1-6
[10]Atici U.,Ersoy A.Evaluation of destruction specific en-ergy of fly ash and slag admixed concrete interlocking pav-ing blocks(CIPB).Construction and Building Materials,2008,22(7):1507-1514
[11]黄红柳.废弃石粉对混凝土性能的影响研究.商品混凝土,2009,(7):32-35Huang Hongliu.The study of the effect of waste stonepowder on concrete performance.Ready Mixed Concrete,2009,(7):32-35(in Chinese)
[12]梁月清.让废弃石粉变为新型建材.福建建材,2006,(1):9-11Liang Yueqing.New building materials made from wastestone powder.Fujian Building Materials,2006,(1):9-11(in Chinese)
[13]郭锋,钱中秋.大掺量炉底渣在预拌砂浆中的应用研究粉煤灰综合利用.粉煤灰综合利用,2011,(1):27-30Guo Feng,Qian Zhongqiu.The study of large proportionof furnace bottom ash applied in ready-mixed mortar.Comprehensive Utilization of Fly Ash,2011,(1):27-30(in Chinese)
[14]Isa Yüksel,Turhan B.,mer.Durability of concreteincorporating non-ground blast furnace slag and bottom ashas fine aggregate.Building and Environment,2007,42(7):2651-2659
[15]Bai Y.,Darcy F.,Basheer P.A.M.Strength and dryingshrinkage properties of concretecontaining furnace bottomash as fine aggregate.Construction and Building Materi-als,2005,19(9):691-697
[16]Kou S.C.,Poon C.S.Properties of concrete preparedwith crushed fine stone,furnace bottom ash and fine recy-cled aggregate as fine aggregates.Construction and Build-ing Materials,2009,23(8):2877-2886
[2]张孟雄,张学良,王卫秋,等.建筑垃圾砖的开发及应用.砖瓦世界,2006,(8):19-21Zhang Mengxiong,Zhang Xueliang,Wang Weiqiu,et al.The development of brick from construction waste and appli-cation.Brick and Tile World,2006,(8):19-21(in Chinese)
[3]Poon C.S.,Kou S.C.,Lam L.Use of recycled aggregatesin molded concrete bricks and blocks.Construction andBuilding Materials,2002,16(5):281-289
[4]Poon C.S.,Chan D.Paving blocks made with recycledconcrete aggregate and crushed clay brick.Construction andBuilding Materials,2006,20(8):569-577
[5]Poon C.S.,Chan D.Effects of contaminants on the prop-erties of concrete paving blocks prepared with recycled con-crete aggregates.Construction and Building Materials,2007,21(1):164-175
[6]Poon C.S.,Lam C.S.The effect of aggregate-to-cementratio and types of aggregates on the properties of pre-castconcrete blocks.Cement&Concrete Composites,2008,30(4):283-289
[7]Poon C.S.,Kou S.C.,Wana H.W.,et al.Propertiesof concrete blocks prepared with low grade recycled aggre-gates.Waste Management,2009,29(8):2369-2377
[8]Soutsos M.N.,Tang K.,Millard S.G.Use of recycleddemolition aggregate in precast products,phaseⅡ:Con-crete paving blocks.Construction and Building Materials,2011,25(7):3131-3143
[9]Wattanasiriwech D.,Saiton A.,Wattanasiriwech S.Pav-ing blocks from ceramic tile production waste.Journal ofCleaner Production,2009,17(18):1-6
[10]Atici U.,Ersoy A.Evaluation of destruction specific en-ergy of fly ash and slag admixed concrete interlocking pav-ing blocks(CIPB).Construction and Building Materials,2008,22(7):1507-1514
[11]黄红柳.废弃石粉对混凝土性能的影响研究.商品混凝土,2009,(7):32-35Huang Hongliu.The study of the effect of waste stonepowder on concrete performance.Ready Mixed Concrete,2009,(7):32-35(in Chinese)
[12]梁月清.让废弃石粉变为新型建材.福建建材,2006,(1):9-11Liang Yueqing.New building materials made from wastestone powder.Fujian Building Materials,2006,(1):9-11(in Chinese)
[13]郭锋,钱中秋.大掺量炉底渣在预拌砂浆中的应用研究粉煤灰综合利用.粉煤灰综合利用,2011,(1):27-30Guo Feng,Qian Zhongqiu.The study of large proportionof furnace bottom ash applied in ready-mixed mortar.Comprehensive Utilization of Fly Ash,2011,(1):27-30(in Chinese)
[14]Isa Yüksel,Turhan B.,mer.Durability of concreteincorporating non-ground blast furnace slag and bottom ashas fine aggregate.Building and Environment,2007,42(7):2651-2659
[15]Bai Y.,Darcy F.,Basheer P.A.M.Strength and dryingshrinkage properties of concretecontaining furnace bottomash as fine aggregate.Construction and Building Materi-als,2005,19(9):691-697
[16]Kou S.C.,Poon C.S.Properties of concrete preparedwith crushed fine stone,furnace bottom ash and fine recy-cled aggregate as fine aggregates.Construction and Build-ing Materials,2009,23(8):2877-2886
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